Migrate devm APIs for HiSilicon clock drivers and remove redundant codes.
This series is a partial improvement of [1]
v2: fix test robot error
v3:
* size_t for all these num types
* hisi_clk_unregister() change into separate patch
* keep relevant header inclusions
* split driver files changes into separate patches
* explain hisi_clk_register_fn() checkpatch warnings
* not fixed: MODULE_LICENSE("GPL v2"), as stated in SPDX-License-Identifier
* not fixed: "hisilicon,hip04-clock" un-documented, as none of dts files in
arch/ use it, better to ask hisi people why they pushed this driver
v4:
* typo: hisi_clocks_get_nr() should check clks->nr first
* unexport hisi_clk_unregister_fn() as no one use them outside
v5: catch up with remove_new refactoring
v6: fix compilation error and expand macros
v7: rebase and use mod_devicetable.h instead
Links:
[1]: https://lore.kernel.org/r/[email protected]
v1: https://lore.kernel.org/r/[email protected]
v2: https://lore.kernel.org/r/[email protected]
v3: https://lore.kernel.org/r/[email protected]
v4: https://lore.kernel.org/r/[email protected]
v5: https://lore.kernel.org/r/[email protected]
v6: https://lore.kernel.org/r/[email protected]
David Yang (13):
clk: hisilicon: Add helper functions for platform driver
clk: hisilicon: hi3516cv300: Use helper functions
clk: hisilicon: hi3798cv200: Use helper functions
clk: hisilicon: Remove hisi_crg_funcs
clk: hisilicon: hi3519: Use helper functions
clk: hisilicon: hi3559a: Use helper functions
clk: hisilicon: hi3660: Convert into module
clk: hisilicon: hi3670: Convert into module
clk: hisilicon: hi3620: Convert into platform driver module
clk: hisilicon: hi6220: Convert into platform driver module
clk: hisilicon: hip04: Convert into platform driver module
clk: hisilicon: hix5hd2: Convert into platform driver module
clk: hisilicon: Migrate devm APIs
drivers/clk/hisilicon/clk-hi3519.c | 127 +-----
drivers/clk/hisilicon/clk-hi3559a.c | 252 +++---------
drivers/clk/hisilicon/clk-hi3620.c | 215 +++++-----
drivers/clk/hisilicon/clk-hi3660.c | 194 +++------
drivers/clk/hisilicon/clk-hi3670.c | 250 ++++--------
drivers/clk/hisilicon/clk-hi6220-stub.c | 9 +-
drivers/clk/hisilicon/clk-hi6220.c | 228 ++++++-----
drivers/clk/hisilicon/clk-hip04.c | 38 +-
drivers/clk/hisilicon/clk-hisi-phase.c | 13 +-
drivers/clk/hisilicon/clk-hix5hd2.c | 98 +++--
drivers/clk/hisilicon/clk.c | 457 +++++++++++-----------
drivers/clk/hisilicon/clk.h | 141 ++++---
drivers/clk/hisilicon/clkdivider-hi6220.c | 24 +-
drivers/clk/hisilicon/clkgate-separated.c | 26 +-
drivers/clk/hisilicon/crg-hi3516cv300.c | 171 +-------
drivers/clk/hisilicon/crg-hi3798cv200.c | 200 ++--------
drivers/clk/hisilicon/crg.h | 11 +-
drivers/clk/hisilicon/reset.c | 42 ++
18 files changed, 944 insertions(+), 1552 deletions(-)
--
2.43.0
Helper functions extract common operations on platform drivers.
During migration to devm APIs, (virtual) fixed clocks were found hard on
devm APIs, since they often depended by crucial peripherals, thus require
early initialization before device probing, and cannot use devm APIs.
One solution to this problem is to add a "fixed-clock" node to device tree,
independent to clock device, and make those peripherals depend on that.
However, there is also some devices that do use fixed clocks provided by
drivers, for example clk-hi3660.c .
To simplify codes, we migrate clocks of other types to devm APIs, while
keep fixed clocks self-managed, alongside with struct hisi_clock_data, and
remove devm-managed hisi_clock_data.
`hisi_clk_alloc` will be removed in the following patch.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk.c | 157 ++++++++++++++++++++++++++++++++++
drivers/clk/hisilicon/clk.h | 46 +++++++++-
drivers/clk/hisilicon/crg.h | 5 ++
drivers/clk/hisilicon/reset.c | 42 +++++++++
4 files changed, 248 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
index 09368fd32bef..e50115f8e236 100644
--- a/drivers/clk/hisilicon/clk.c
+++ b/drivers/clk/hisilicon/clk.c
@@ -88,6 +88,25 @@ struct hisi_clock_data *hisi_clk_init(struct device_node *np,
}
EXPORT_SYMBOL_GPL(hisi_clk_init);
+void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data)
+{
+ if (data->clks) {
+ if (data->clks->fixed_rate_clks_num)
+ hisi_clk_unregister_fixed_rate(data->clks->fixed_rate_clks,
+ data->clks->fixed_rate_clks_num,
+ data);
+ if (data->clks->fixed_factor_clks_num)
+ hisi_clk_unregister_fixed_factor(data->clks->fixed_factor_clks,
+ data->clks->fixed_factor_clks_num,
+ data);
+ }
+
+ of_clk_del_provider(np);
+ kfree(data->clk_data.clks);
+ kfree(data);
+}
+EXPORT_SYMBOL_GPL(hisi_clk_free);
+
int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *clks,
int nums, struct hisi_clock_data *data)
{
@@ -341,3 +360,141 @@ void __init hi6220_clk_register_divider(const struct hi6220_divider_clock *clks,
data->clk_data.clks[clks[i].id] = clk;
}
}
+
+static size_t hisi_clocks_get_nr(const struct hisi_clocks *clks)
+{
+ if (clks->nr)
+ return clks->nr;
+
+ return clks->fixed_rate_clks_num + clks->fixed_factor_clks_num +
+ clks->mux_clks_num + clks->phase_clks_num +
+ clks->divider_clks_num + clks->gate_clks_num +
+ clks->gate_sep_clks_num + clks->customized_clks_num;
+}
+
+int hisi_clk_early_init(struct device_node *np, const struct hisi_clocks *clks)
+{
+ struct hisi_clock_data *data;
+ int ret;
+
+ data = hisi_clk_init(np, hisi_clocks_get_nr(clks));
+ if (!data)
+ return -ENOMEM;
+ data->clks = clks;
+
+ ret = hisi_clk_register_fixed_rate(clks->fixed_rate_clks,
+ clks->fixed_rate_clks_num, data);
+ if (ret)
+ goto err;
+
+ ret = hisi_clk_register_fixed_factor(clks->fixed_factor_clks,
+ clks->fixed_factor_clks_num, data);
+ if (ret)
+ goto err;
+
+ np->data = data;
+ return 0;
+
+err:
+ hisi_clk_free(np, data);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hisi_clk_early_init);
+
+static int hisi_clk_register(struct device *dev, const struct hisi_clocks *clks,
+ struct hisi_clock_data *data)
+{
+ int ret;
+
+ if (clks->mux_clks_num) {
+ ret = hisi_clk_register_mux(clks->mux_clks,
+ clks->mux_clks_num, data);
+ if (ret)
+ return ret;
+ }
+
+ if (clks->phase_clks_num) {
+ ret = hisi_clk_register_phase(dev, clks->phase_clks,
+ clks->phase_clks_num, data);
+ if (ret)
+ return ret;
+ }
+
+ if (clks->divider_clks_num) {
+ ret = hisi_clk_register_divider(clks->divider_clks,
+ clks->divider_clks_num, data);
+ if (ret)
+ return ret;
+ }
+
+ if (clks->gate_clks_num) {
+ ret = hisi_clk_register_gate(clks->gate_clks,
+ clks->gate_clks_num, data);
+ if (ret)
+ return ret;
+ }
+
+ if (clks->gate_sep_clks_num) {
+ hisi_clk_register_gate_sep(clks->gate_sep_clks,
+ clks->gate_sep_clks_num, data);
+ }
+
+ if (clks->clk_register_customized && clks->customized_clks_num) {
+ ret = clks->clk_register_customized(dev, clks->customized_clks,
+ clks->customized_clks_num, data);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+int hisi_clk_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ const struct hisi_clocks *clks;
+ struct hisi_clock_data *data;
+ int ret;
+
+ clks = of_device_get_match_data(dev);
+ if (!clks)
+ return -ENOENT;
+
+ if (!np->data) {
+ ret = hisi_clk_early_init(np, clks);
+ if (ret)
+ return ret;
+ }
+
+ data = np->data;
+ np->data = NULL;
+
+ if (clks->prologue) {
+ ret = clks->prologue(dev, data);
+ if (ret)
+ goto err;
+ }
+
+ ret = hisi_clk_register(dev, clks, data);
+ if (ret)
+ goto err;
+
+ platform_set_drvdata(pdev, data);
+ return 0;
+
+err:
+ hisi_clk_free(np, data);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hisi_clk_probe);
+
+void hisi_clk_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct hisi_clock_data *data = platform_get_drvdata(pdev);
+
+ hisi_clk_free(np, data);
+}
+EXPORT_SYMBOL_GPL(hisi_clk_remove);
diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h
index 7a9b42e1b027..87b17e9b79a3 100644
--- a/drivers/clk/hisilicon/clk.h
+++ b/drivers/clk/hisilicon/clk.h
@@ -17,10 +17,12 @@
#include <linux/spinlock.h>
struct platform_device;
+struct hisi_clocks;
struct hisi_clock_data {
- struct clk_onecell_data clk_data;
- void __iomem *base;
+ struct clk_onecell_data clk_data;
+ void __iomem *base;
+ const struct hisi_clocks *clks;
};
struct hisi_fixed_rate_clock {
@@ -103,6 +105,39 @@ struct hisi_gate_clock {
const char *alias;
};
+struct hisi_clocks {
+ /* if 0, sum all *_num */
+ size_t nr;
+
+ int (*prologue)(struct device *dev, struct hisi_clock_data *data);
+
+ const struct hisi_fixed_rate_clock *fixed_rate_clks;
+ size_t fixed_rate_clks_num;
+
+ const struct hisi_fixed_factor_clock *fixed_factor_clks;
+ size_t fixed_factor_clks_num;
+
+ const struct hisi_mux_clock *mux_clks;
+ size_t mux_clks_num;
+
+ const struct hisi_phase_clock *phase_clks;
+ size_t phase_clks_num;
+
+ const struct hisi_divider_clock *divider_clks;
+ size_t divider_clks_num;
+
+ const struct hisi_gate_clock *gate_clks;
+ size_t gate_clks_num;
+
+ const struct hisi_gate_clock *gate_sep_clks;
+ size_t gate_sep_clks_num;
+
+ const void *customized_clks;
+ size_t customized_clks_num;
+ int (*clk_register_customized)(struct device *dev, const void *clks,
+ size_t num, struct hisi_clock_data *data);
+};
+
struct clk *hisi_register_clkgate_sep(struct device *, const char *,
const char *, unsigned long,
void __iomem *, u8,
@@ -113,6 +148,7 @@ struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
struct hisi_clock_data *hisi_clk_alloc(struct platform_device *, int);
struct hisi_clock_data *hisi_clk_init(struct device_node *, int);
+void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data);
int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *,
int, struct hisi_clock_data *);
int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *,
@@ -154,4 +190,10 @@ hisi_clk_unregister(mux)
hisi_clk_unregister(divider)
hisi_clk_unregister(gate)
+/* helper functions for platform driver */
+
+int hisi_clk_early_init(struct device_node *np, const struct hisi_clocks *clks);
+int hisi_clk_probe(struct platform_device *pdev);
+void hisi_clk_remove(struct platform_device *pdev);
+
#endif /* __HISI_CLK_H */
diff --git a/drivers/clk/hisilicon/crg.h b/drivers/clk/hisilicon/crg.h
index 803f6ba6d7a2..bd8e76b1f6d7 100644
--- a/drivers/clk/hisilicon/crg.h
+++ b/drivers/clk/hisilicon/crg.h
@@ -22,4 +22,9 @@ struct hisi_crg_dev {
const struct hisi_crg_funcs *funcs;
};
+/* helper functions for platform driver */
+
+int hisi_crg_probe(struct platform_device *pdev);
+void hisi_crg_remove(struct platform_device *pdev);
+
#endif /* __HISI_CRG_H */
diff --git a/drivers/clk/hisilicon/reset.c b/drivers/clk/hisilicon/reset.c
index 93cee17db8b1..c7d4c9ea7183 100644
--- a/drivers/clk/hisilicon/reset.c
+++ b/drivers/clk/hisilicon/reset.c
@@ -6,11 +6,15 @@
*/
#include <linux/io.h>
+#include <linux/kernel.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/reset-controller.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+
+#include "clk.h"
+#include "crg.h"
#include "reset.h"
#define HISI_RESET_BIT_MASK 0x1f
@@ -116,3 +120,41 @@ void hisi_reset_exit(struct hisi_reset_controller *rstc)
reset_controller_unregister(&rstc->rcdev);
}
EXPORT_SYMBOL_GPL(hisi_reset_exit);
+
+int hisi_crg_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct hisi_crg_dev *crg;
+ int ret;
+
+ crg = devm_kmalloc(dev, sizeof(*crg), GFP_KERNEL);
+ if (!crg)
+ return -ENOMEM;
+
+ ret = hisi_clk_probe(pdev);
+ if (ret)
+ return ret;
+
+ crg->rstc = hisi_reset_init(pdev);
+ if (!crg->rstc) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, crg);
+ return 0;
+
+err:
+ hisi_clk_remove(pdev);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hisi_crg_probe);
+
+void hisi_crg_remove(struct platform_device *pdev)
+{
+ struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
+
+ hisi_reset_exit(crg->rstc);
+ hisi_clk_remove(pdev);
+}
+EXPORT_SYMBOL_GPL(hisi_crg_remove);
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/crg-hi3516cv300.c | 171 +++---------------------
1 file changed, 17 insertions(+), 154 deletions(-)
diff --git a/drivers/clk/hisilicon/crg-hi3516cv300.c b/drivers/clk/hisilicon/crg-hi3516cv300.c
index e602e65fbc38..0e6b95d00c68 100644
--- a/drivers/clk/hisilicon/crg-hi3516cv300.c
+++ b/drivers/clk/hisilicon/crg-hi3516cv300.c
@@ -12,7 +12,6 @@
#include <linux/platform_device.h>
#include "clk.h"
#include "crg.h"
-#include "reset.h"
/* hi3516CV300 core CRG */
#define HI3516CV300_INNER_CLK_OFFSET 64
@@ -126,67 +125,14 @@ static const struct hisi_gate_clock hi3516cv300_gate_clks[] = {
{ HI3516CV300_USB2_PHY_CLK, "clk_usb2_phy", NULL, 0, 0xb8, 7, 0, },
};
-static struct hisi_clock_data *hi3516cv300_clk_register(
- struct platform_device *pdev)
-{
- struct hisi_clock_data *clk_data;
- int ret;
-
- clk_data = hisi_clk_alloc(pdev, HI3516CV300_CRG_NR_CLKS);
- if (!clk_data)
- return ERR_PTR(-ENOMEM);
-
- ret = hisi_clk_register_fixed_rate(hi3516cv300_fixed_rate_clks,
- ARRAY_SIZE(hi3516cv300_fixed_rate_clks), clk_data);
- if (ret)
- return ERR_PTR(ret);
-
- ret = hisi_clk_register_mux(hi3516cv300_mux_clks,
- ARRAY_SIZE(hi3516cv300_mux_clks), clk_data);
- if (ret)
- goto unregister_fixed_rate;
-
- ret = hisi_clk_register_gate(hi3516cv300_gate_clks,
- ARRAY_SIZE(hi3516cv300_gate_clks), clk_data);
- if (ret)
- goto unregister_mux;
-
- ret = of_clk_add_provider(pdev->dev.of_node,
- of_clk_src_onecell_get, &clk_data->clk_data);
- if (ret)
- goto unregister_gate;
-
- return clk_data;
-
-unregister_gate:
- hisi_clk_unregister_gate(hi3516cv300_gate_clks,
- ARRAY_SIZE(hi3516cv300_gate_clks), clk_data);
-unregister_mux:
- hisi_clk_unregister_mux(hi3516cv300_mux_clks,
- ARRAY_SIZE(hi3516cv300_mux_clks), clk_data);
-unregister_fixed_rate:
- hisi_clk_unregister_fixed_rate(hi3516cv300_fixed_rate_clks,
- ARRAY_SIZE(hi3516cv300_fixed_rate_clks), clk_data);
- return ERR_PTR(ret);
-}
-
-static void hi3516cv300_clk_unregister(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- of_clk_del_provider(pdev->dev.of_node);
-
- hisi_clk_unregister_gate(hi3516cv300_gate_clks,
- ARRAY_SIZE(hi3516cv300_gate_clks), crg->clk_data);
- hisi_clk_unregister_mux(hi3516cv300_mux_clks,
- ARRAY_SIZE(hi3516cv300_mux_clks), crg->clk_data);
- hisi_clk_unregister_fixed_rate(hi3516cv300_fixed_rate_clks,
- ARRAY_SIZE(hi3516cv300_fixed_rate_clks), crg->clk_data);
-}
-
-static const struct hisi_crg_funcs hi3516cv300_crg_funcs = {
- .register_clks = hi3516cv300_clk_register,
- .unregister_clks = hi3516cv300_clk_unregister,
+static const struct hisi_clocks hi3516cv300_crg_clks = {
+ .nr = HI3516CV300_CRG_NR_CLKS,
+ .fixed_rate_clks = hi3516cv300_fixed_rate_clks,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi3516cv300_fixed_rate_clks),
+ .mux_clks = hi3516cv300_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3516cv300_mux_clks),
+ .gate_clks = hi3516cv300_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3516cv300_gate_clks),
};
/* hi3516CV300 sysctrl CRG */
@@ -200,118 +146,35 @@ static const struct hisi_mux_clock hi3516cv300_sysctrl_mux_clks[] = {
CLK_SET_RATE_PARENT, 0x0, 23, 1, 0, wdt_mux_table, },
};
-static struct hisi_clock_data *hi3516cv300_sysctrl_clk_register(
- struct platform_device *pdev)
-{
- struct hisi_clock_data *clk_data;
- int ret;
-
- clk_data = hisi_clk_alloc(pdev, HI3516CV300_SYSCTRL_NR_CLKS);
- if (!clk_data)
- return ERR_PTR(-ENOMEM);
-
- ret = hisi_clk_register_mux(hi3516cv300_sysctrl_mux_clks,
- ARRAY_SIZE(hi3516cv300_sysctrl_mux_clks), clk_data);
- if (ret)
- return ERR_PTR(ret);
-
-
- ret = of_clk_add_provider(pdev->dev.of_node,
- of_clk_src_onecell_get, &clk_data->clk_data);
- if (ret)
- goto unregister_mux;
-
- return clk_data;
-
-unregister_mux:
- hisi_clk_unregister_mux(hi3516cv300_sysctrl_mux_clks,
- ARRAY_SIZE(hi3516cv300_sysctrl_mux_clks), clk_data);
- return ERR_PTR(ret);
-}
-
-static void hi3516cv300_sysctrl_clk_unregister(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- of_clk_del_provider(pdev->dev.of_node);
-
- hisi_clk_unregister_mux(hi3516cv300_sysctrl_mux_clks,
- ARRAY_SIZE(hi3516cv300_sysctrl_mux_clks),
- crg->clk_data);
-}
-
-static const struct hisi_crg_funcs hi3516cv300_sysctrl_funcs = {
- .register_clks = hi3516cv300_sysctrl_clk_register,
- .unregister_clks = hi3516cv300_sysctrl_clk_unregister,
+static const struct hisi_clocks hi3516cv300_sysctrl_clks = {
+ .nr = HI3516CV300_SYSCTRL_NR_CLKS,
+ .mux_clks = hi3516cv300_sysctrl_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3516cv300_sysctrl_mux_clks),
};
static const struct of_device_id hi3516cv300_crg_match_table[] = {
{
.compatible = "hisilicon,hi3516cv300-crg",
- .data = &hi3516cv300_crg_funcs
+ .data = &hi3516cv300_crg_clks,
},
{
.compatible = "hisilicon,hi3516cv300-sysctrl",
- .data = &hi3516cv300_sysctrl_funcs
+ .data = &hi3516cv300_sysctrl_clks,
},
{ }
};
MODULE_DEVICE_TABLE(of, hi3516cv300_crg_match_table);
-static int hi3516cv300_crg_probe(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg;
-
- crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);
- if (!crg)
- return -ENOMEM;
-
- crg->funcs = of_device_get_match_data(&pdev->dev);
- if (!crg->funcs)
- return -ENOENT;
-
- crg->rstc = hisi_reset_init(pdev);
- if (!crg->rstc)
- return -ENOMEM;
-
- crg->clk_data = crg->funcs->register_clks(pdev);
- if (IS_ERR(crg->clk_data)) {
- hisi_reset_exit(crg->rstc);
- return PTR_ERR(crg->clk_data);
- }
-
- platform_set_drvdata(pdev, crg);
- return 0;
-}
-
-static void hi3516cv300_crg_remove(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- hisi_reset_exit(crg->rstc);
- crg->funcs->unregister_clks(pdev);
-}
-
static struct platform_driver hi3516cv300_crg_driver = {
- .probe = hi3516cv300_crg_probe,
- .remove_new = hi3516cv300_crg_remove,
+ .probe = hisi_crg_probe,
+ .remove_new = hisi_crg_remove,
.driver = {
.name = "hi3516cv300-crg",
.of_match_table = hi3516cv300_crg_match_table,
},
};
-static int __init hi3516cv300_crg_init(void)
-{
- return platform_driver_register(&hi3516cv300_crg_driver);
-}
-core_initcall(hi3516cv300_crg_init);
-
-static void __exit hi3516cv300_crg_exit(void)
-{
- platform_driver_unregister(&hi3516cv300_crg_driver);
-}
-module_exit(hi3516cv300_crg_exit);
+module_platform_driver(hi3516cv300_crg_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("HiSilicon Hi3516CV300 CRG Driver");
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/crg-hi3798cv200.c | 200 +++---------------------
1 file changed, 22 insertions(+), 178 deletions(-)
diff --git a/drivers/clk/hisilicon/crg-hi3798cv200.c b/drivers/clk/hisilicon/crg-hi3798cv200.c
index f651b197e45a..9ce590cc4142 100644
--- a/drivers/clk/hisilicon/crg-hi3798cv200.c
+++ b/drivers/clk/hisilicon/crg-hi3798cv200.c
@@ -12,7 +12,6 @@
#include <linux/platform_device.h>
#include "clk.h"
#include "crg.h"
-#include "reset.h"
/* hi3798CV200 core CRG */
#define HI3798CV200_INNER_CLK_OFFSET 64
@@ -41,6 +40,7 @@
#define HI3798CV200_CRG_NR_CLKS 128
+#define HI3798CV200_SYSCTRL_NR_CLKS 16
static const struct hisi_fixed_rate_clock hi3798cv200_fixed_rate_clks[] = {
{ HISTB_OSC_CLK, "clk_osc", NULL, 0, 24000000, },
{ HISTB_APB_CLK, "clk_apb", NULL, 0, 100000000, },
@@ -193,90 +193,18 @@ static const struct hisi_gate_clock hi3798cv200_gate_clks[] = {
CLK_SET_RATE_PARENT, 0xb0, 18, 0 },
};
-static struct hisi_clock_data *hi3798cv200_clk_register(
- struct platform_device *pdev)
-{
- struct hisi_clock_data *clk_data;
- int ret;
-
- clk_data = hisi_clk_alloc(pdev, HI3798CV200_CRG_NR_CLKS);
- if (!clk_data)
- return ERR_PTR(-ENOMEM);
-
- /* hisi_phase_clock is resource managed */
- ret = hisi_clk_register_phase(&pdev->dev,
- hi3798cv200_phase_clks,
- ARRAY_SIZE(hi3798cv200_phase_clks),
- clk_data);
- if (ret)
- return ERR_PTR(ret);
-
- ret = hisi_clk_register_fixed_rate(hi3798cv200_fixed_rate_clks,
- ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
- clk_data);
- if (ret)
- return ERR_PTR(ret);
-
- ret = hisi_clk_register_mux(hi3798cv200_mux_clks,
- ARRAY_SIZE(hi3798cv200_mux_clks),
- clk_data);
- if (ret)
- goto unregister_fixed_rate;
-
- ret = hisi_clk_register_gate(hi3798cv200_gate_clks,
- ARRAY_SIZE(hi3798cv200_gate_clks),
- clk_data);
- if (ret)
- goto unregister_mux;
-
- ret = of_clk_add_provider(pdev->dev.of_node,
- of_clk_src_onecell_get, &clk_data->clk_data);
- if (ret)
- goto unregister_gate;
-
- return clk_data;
-
-unregister_gate:
- hisi_clk_unregister_gate(hi3798cv200_gate_clks,
- ARRAY_SIZE(hi3798cv200_gate_clks),
- clk_data);
-unregister_mux:
- hisi_clk_unregister_mux(hi3798cv200_mux_clks,
- ARRAY_SIZE(hi3798cv200_mux_clks),
- clk_data);
-unregister_fixed_rate:
- hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks,
- ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
- clk_data);
- return ERR_PTR(ret);
-}
-
-static void hi3798cv200_clk_unregister(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- of_clk_del_provider(pdev->dev.of_node);
-
- hisi_clk_unregister_gate(hi3798cv200_gate_clks,
- ARRAY_SIZE(hi3798cv200_gate_clks),
- crg->clk_data);
- hisi_clk_unregister_mux(hi3798cv200_mux_clks,
- ARRAY_SIZE(hi3798cv200_mux_clks),
- crg->clk_data);
- hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks,
- ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
- crg->clk_data);
-}
-
-static const struct hisi_crg_funcs hi3798cv200_crg_funcs = {
- .register_clks = hi3798cv200_clk_register,
- .unregister_clks = hi3798cv200_clk_unregister,
+static const struct hisi_clocks hi3798cv200_crg_clks = {
+ .nr = HI3798CV200_CRG_NR_CLKS,
+ .fixed_rate_clks = hi3798cv200_fixed_rate_clks,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
+ .mux_clks = hi3798cv200_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3798cv200_mux_clks),
+ .phase_clks = hi3798cv200_phase_clks,
+ .phase_clks_num = ARRAY_SIZE(hi3798cv200_phase_clks),
+ .gate_clks = hi3798cv200_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3798cv200_gate_clks),
};
-/* hi3798CV200 sysctrl CRG */
-
-#define HI3798CV200_SYSCTRL_NR_CLKS 16
-
static const struct hisi_gate_clock hi3798cv200_sysctrl_gate_clks[] = {
{ HISTB_IR_CLK, "clk_ir", "24m",
CLK_SET_RATE_PARENT, 0x48, 4, 0, },
@@ -286,115 +214,31 @@ static const struct hisi_gate_clock hi3798cv200_sysctrl_gate_clks[] = {
CLK_SET_RATE_PARENT, 0x48, 10, 0, },
};
-static struct hisi_clock_data *hi3798cv200_sysctrl_clk_register(
- struct platform_device *pdev)
-{
- struct hisi_clock_data *clk_data;
- int ret;
-
- clk_data = hisi_clk_alloc(pdev, HI3798CV200_SYSCTRL_NR_CLKS);
- if (!clk_data)
- return ERR_PTR(-ENOMEM);
-
- ret = hisi_clk_register_gate(hi3798cv200_sysctrl_gate_clks,
- ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks),
- clk_data);
- if (ret)
- return ERR_PTR(ret);
-
- ret = of_clk_add_provider(pdev->dev.of_node,
- of_clk_src_onecell_get, &clk_data->clk_data);
- if (ret)
- goto unregister_gate;
-
- return clk_data;
-
-unregister_gate:
- hisi_clk_unregister_gate(hi3798cv200_sysctrl_gate_clks,
- ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks),
- clk_data);
- return ERR_PTR(ret);
-}
-
-static void hi3798cv200_sysctrl_clk_unregister(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- of_clk_del_provider(pdev->dev.of_node);
-
- hisi_clk_unregister_gate(hi3798cv200_sysctrl_gate_clks,
- ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks),
- crg->clk_data);
-}
-
-static const struct hisi_crg_funcs hi3798cv200_sysctrl_funcs = {
- .register_clks = hi3798cv200_sysctrl_clk_register,
- .unregister_clks = hi3798cv200_sysctrl_clk_unregister,
+static const struct hisi_clocks hi3798cv200_sysctrl_clks = {
+ .nr = HI3798CV200_SYSCTRL_NR_CLKS,
+ .gate_clks = hi3798cv200_sysctrl_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks),
};
static const struct of_device_id hi3798cv200_crg_match_table[] = {
{ .compatible = "hisilicon,hi3798cv200-crg",
- .data = &hi3798cv200_crg_funcs },
+ .data = &hi3798cv200_crg_clks },
{ .compatible = "hisilicon,hi3798cv200-sysctrl",
- .data = &hi3798cv200_sysctrl_funcs },
+ .data = &hi3798cv200_sysctrl_clks },
{ }
};
MODULE_DEVICE_TABLE(of, hi3798cv200_crg_match_table);
-static int hi3798cv200_crg_probe(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg;
-
- crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);
- if (!crg)
- return -ENOMEM;
-
- crg->funcs = of_device_get_match_data(&pdev->dev);
- if (!crg->funcs)
- return -ENOENT;
-
- crg->rstc = hisi_reset_init(pdev);
- if (!crg->rstc)
- return -ENOMEM;
-
- crg->clk_data = crg->funcs->register_clks(pdev);
- if (IS_ERR(crg->clk_data)) {
- hisi_reset_exit(crg->rstc);
- return PTR_ERR(crg->clk_data);
- }
-
- platform_set_drvdata(pdev, crg);
- return 0;
-}
-
-static void hi3798cv200_crg_remove(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- hisi_reset_exit(crg->rstc);
- crg->funcs->unregister_clks(pdev);
-}
-
static struct platform_driver hi3798cv200_crg_driver = {
- .probe = hi3798cv200_crg_probe,
- .remove_new = hi3798cv200_crg_remove,
- .driver = {
- .name = "hi3798cv200-crg",
+ .probe = hisi_crg_probe,
+ .remove_new = hisi_crg_remove,
+ .driver = {
+ .name = "hi3798cv200-crg",
.of_match_table = hi3798cv200_crg_match_table,
},
};
-static int __init hi3798cv200_crg_init(void)
-{
- return platform_driver_register(&hi3798cv200_crg_driver);
-}
-core_initcall(hi3798cv200_crg_init);
-
-static void __exit hi3798cv200_crg_exit(void)
-{
- platform_driver_unregister(&hi3798cv200_crg_driver);
-}
-module_exit(hi3798cv200_crg_exit);
+module_platform_driver(hi3798cv200_crg_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("HiSilicon Hi3798CV200 CRG Driver");
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hi3519.c | 127 ++++-------------------------
1 file changed, 15 insertions(+), 112 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hi3519.c b/drivers/clk/hisilicon/clk-hi3519.c
index b871872d9960..cb541de752da 100644
--- a/drivers/clk/hisilicon/clk-hi3519.c
+++ b/drivers/clk/hisilicon/clk-hi3519.c
@@ -10,7 +10,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include "clk.h"
-#include "reset.h"
+#include "crg.h"
#define HI3519_INNER_CLK_OFFSET 64
#define HI3519_FIXED_24M 65
@@ -73,130 +73,33 @@ static const struct hisi_gate_clock hi3519_gate_clks[] = {
CLK_SET_RATE_PARENT, 0xe4, 18, 0, },
};
-static struct hisi_clock_data *hi3519_clk_register(struct platform_device *pdev)
-{
- struct hisi_clock_data *clk_data;
- int ret;
-
- clk_data = hisi_clk_alloc(pdev, HI3519_NR_CLKS);
- if (!clk_data)
- return ERR_PTR(-ENOMEM);
-
- ret = hisi_clk_register_fixed_rate(hi3519_fixed_rate_clks,
- ARRAY_SIZE(hi3519_fixed_rate_clks),
- clk_data);
- if (ret)
- return ERR_PTR(ret);
-
- ret = hisi_clk_register_mux(hi3519_mux_clks,
- ARRAY_SIZE(hi3519_mux_clks),
- clk_data);
- if (ret)
- goto unregister_fixed_rate;
-
- ret = hisi_clk_register_gate(hi3519_gate_clks,
- ARRAY_SIZE(hi3519_gate_clks),
- clk_data);
- if (ret)
- goto unregister_mux;
-
- ret = of_clk_add_provider(pdev->dev.of_node,
- of_clk_src_onecell_get, &clk_data->clk_data);
- if (ret)
- goto unregister_gate;
-
- return clk_data;
-
-unregister_fixed_rate:
- hisi_clk_unregister_fixed_rate(hi3519_fixed_rate_clks,
- ARRAY_SIZE(hi3519_fixed_rate_clks),
- clk_data);
-
-unregister_mux:
- hisi_clk_unregister_mux(hi3519_mux_clks,
- ARRAY_SIZE(hi3519_mux_clks),
- clk_data);
-unregister_gate:
- hisi_clk_unregister_gate(hi3519_gate_clks,
- ARRAY_SIZE(hi3519_gate_clks),
- clk_data);
- return ERR_PTR(ret);
-}
-
-static void hi3519_clk_unregister(struct platform_device *pdev)
-{
- struct hi3519_crg_data *crg = platform_get_drvdata(pdev);
-
- of_clk_del_provider(pdev->dev.of_node);
-
- hisi_clk_unregister_gate(hi3519_gate_clks,
- ARRAY_SIZE(hi3519_mux_clks),
- crg->clk_data);
- hisi_clk_unregister_mux(hi3519_mux_clks,
- ARRAY_SIZE(hi3519_mux_clks),
- crg->clk_data);
- hisi_clk_unregister_fixed_rate(hi3519_fixed_rate_clks,
- ARRAY_SIZE(hi3519_fixed_rate_clks),
- crg->clk_data);
-}
-
-static int hi3519_clk_probe(struct platform_device *pdev)
-{
- struct hi3519_crg_data *crg;
-
- crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);
- if (!crg)
- return -ENOMEM;
-
- crg->rstc = hisi_reset_init(pdev);
- if (!crg->rstc)
- return -ENOMEM;
-
- crg->clk_data = hi3519_clk_register(pdev);
- if (IS_ERR(crg->clk_data)) {
- hisi_reset_exit(crg->rstc);
- return PTR_ERR(crg->clk_data);
- }
-
- platform_set_drvdata(pdev, crg);
- return 0;
-}
-
-static void hi3519_clk_remove(struct platform_device *pdev)
-{
- struct hi3519_crg_data *crg = platform_get_drvdata(pdev);
-
- hisi_reset_exit(crg->rstc);
- hi3519_clk_unregister(pdev);
-}
-
+static const struct hisi_clocks hi3519_crg_clks = {
+ .nr = HI3519_NR_CLKS,
+ .fixed_rate_clks = hi3519_fixed_rate_clks,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi3519_fixed_rate_clks),
+ .mux_clks = hi3519_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3519_mux_clks),
+ .gate_clks = hi3519_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3519_gate_clks),
+};
static const struct of_device_id hi3519_clk_match_table[] = {
- { .compatible = "hisilicon,hi3519-crg" },
+ { .compatible = "hisilicon,hi3519-crg",
+ .data = &hi3519_crg_clks },
{ }
};
MODULE_DEVICE_TABLE(of, hi3519_clk_match_table);
static struct platform_driver hi3519_clk_driver = {
- .probe = hi3519_clk_probe,
- .remove_new = hi3519_clk_remove,
+ .probe = hisi_crg_probe,
+ .remove_new = hisi_crg_remove,
.driver = {
.name = "hi3519-clk",
.of_match_table = hi3519_clk_match_table,
},
};
-static int __init hi3519_clk_init(void)
-{
- return platform_driver_register(&hi3519_clk_driver);
-}
-core_initcall(hi3519_clk_init);
-
-static void __exit hi3519_clk_exit(void)
-{
- platform_driver_unregister(&hi3519_clk_driver);
-}
-module_exit(hi3519_clk_exit);
+module_platform_driver(hi3519_clk_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("HiSilicon Hi3519 Clock Driver");
--
2.43.0
After refactor, no one use hisi_crg_funcs.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/crg.h | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/clk/hisilicon/crg.h b/drivers/clk/hisilicon/crg.h
index bd8e76b1f6d7..db2324309d41 100644
--- a/drivers/clk/hisilicon/crg.h
+++ b/drivers/clk/hisilicon/crg.h
@@ -11,15 +11,9 @@
struct hisi_clock_data;
struct hisi_reset_controller;
-struct hisi_crg_funcs {
- struct hisi_clock_data* (*register_clks)(struct platform_device *pdev);
- void (*unregister_clks)(struct platform_device *pdev);
-};
-
struct hisi_crg_dev {
struct hisi_clock_data *clk_data;
struct hisi_reset_controller *rstc;
- const struct hisi_crg_funcs *funcs;
};
/* helper functions for platform driver */
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hi3559a.c | 231 +++++-----------------------
1 file changed, 37 insertions(+), 194 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hi3559a.c b/drivers/clk/hisilicon/clk-hi3559a.c
index ff4ca0edce06..5d3b36c90886 100644
--- a/drivers/clk/hisilicon/clk-hi3559a.c
+++ b/drivers/clk/hisilicon/clk-hi3559a.c
@@ -11,7 +11,6 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
-#include <linux/slab.h>
#include <dt-bindings/clock/hi3559av100-clock.h>
@@ -452,21 +451,23 @@ static const struct clk_ops hisi_clk_pll_ops = {
.recalc_rate = clk_pll_recalc_rate,
};
-static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,
- int nums, struct hisi_clock_data *data, struct device *dev)
+static int
+hisi_clk_register_pll(struct device *dev, const void *clocks,
+ size_t num, struct hisi_clock_data *data)
{
+ const struct hi3559av100_pll_clock *clks = clocks;
void __iomem *base = data->base;
struct hi3559av100_clk_pll *p_clk = NULL;
struct clk *clk = NULL;
struct clk_init_data init;
int i;
- p_clk = devm_kzalloc(dev, sizeof(*p_clk) * nums, GFP_KERNEL);
+ p_clk = devm_kzalloc(dev, sizeof(*p_clk) * num, GFP_KERNEL);
if (!p_clk)
- return;
+ return -ENOMEM;
- for (i = 0; i < nums; i++) {
+ for (i = 0; i < num; i++) {
init.name = clks[i].name;
init.flags = 0;
init.parent_names =
@@ -494,78 +495,27 @@ static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,
devm_kfree(dev, p_clk);
dev_err(dev, "%s: failed to register clock %s\n",
__func__, clks[i].name);
- continue;
+ return PTR_ERR(clk);
}
data->clk_data.clks[clks[i].id] = clk;
p_clk++;
}
-}
-
-static struct hisi_clock_data *hi3559av100_clk_register(
- struct platform_device *pdev)
-{
- struct hisi_clock_data *clk_data;
- int ret;
-
- clk_data = hisi_clk_alloc(pdev, HI3559AV100_CRG_NR_CLKS);
- if (!clk_data)
- return ERR_PTR(-ENOMEM);
-
- ret = hisi_clk_register_fixed_rate(hi3559av100_fixed_rate_clks_crg,
- ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), clk_data);
- if (ret)
- return ERR_PTR(ret);
-
- hisi_clk_register_pll(hi3559av100_pll_clks,
- ARRAY_SIZE(hi3559av100_pll_clks), clk_data, &pdev->dev);
-
- ret = hisi_clk_register_mux(hi3559av100_mux_clks_crg,
- ARRAY_SIZE(hi3559av100_mux_clks_crg), clk_data);
- if (ret)
- goto unregister_fixed_rate;
-
- ret = hisi_clk_register_gate(hi3559av100_gate_clks,
- ARRAY_SIZE(hi3559av100_gate_clks), clk_data);
- if (ret)
- goto unregister_mux;
-
- ret = of_clk_add_provider(pdev->dev.of_node,
- of_clk_src_onecell_get, &clk_data->clk_data);
- if (ret)
- goto unregister_gate;
-
- return clk_data;
-
-unregister_gate:
- hisi_clk_unregister_gate(hi3559av100_gate_clks,
- ARRAY_SIZE(hi3559av100_gate_clks), clk_data);
-unregister_mux:
- hisi_clk_unregister_mux(hi3559av100_mux_clks_crg,
- ARRAY_SIZE(hi3559av100_mux_clks_crg), clk_data);
-unregister_fixed_rate:
- hisi_clk_unregister_fixed_rate(hi3559av100_fixed_rate_clks_crg,
- ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), clk_data);
- return ERR_PTR(ret);
-}
-static void hi3559av100_clk_unregister(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- of_clk_del_provider(pdev->dev.of_node);
-
- hisi_clk_unregister_gate(hi3559av100_gate_clks,
- ARRAY_SIZE(hi3559av100_gate_clks), crg->clk_data);
- hisi_clk_unregister_mux(hi3559av100_mux_clks_crg,
- ARRAY_SIZE(hi3559av100_mux_clks_crg), crg->clk_data);
- hisi_clk_unregister_fixed_rate(hi3559av100_fixed_rate_clks_crg,
- ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), crg->clk_data);
+ return 0;
}
-static const struct hisi_crg_funcs hi3559av100_crg_funcs = {
- .register_clks = hi3559av100_clk_register,
- .unregister_clks = hi3559av100_clk_unregister,
+static const struct hisi_clocks hi3559av100_clks = {
+ .nr = HI3559AV100_CRG_NR_CLKS,
+ .fixed_rate_clks = hi3559av100_fixed_rate_clks_crg,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg),
+ .mux_clks = hi3559av100_mux_clks_crg,
+ .mux_clks_num = ARRAY_SIZE(hi3559av100_mux_clks_crg),
+ .gate_clks = hi3559av100_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3559av100_gate_clks),
+ .customized_clks = hi3559av100_pll_clks,
+ .customized_clks_num = ARRAY_SIZE(hi3559av100_pll_clks),
+ .clk_register_customized = hisi_clk_register_pll,
};
static struct hisi_fixed_rate_clock hi3559av100_shub_fixed_rate_clks[] = {
@@ -673,7 +623,7 @@ static struct hisi_gate_clock hi3559av100_shub_gate_clks[] = {
},
};
-static int hi3559av100_shub_default_clk_set(void)
+static int hi3559av100_shub_default_clk_set(struct device *dev, struct hisi_clock_data *data)
{
void __iomem *crg_base;
unsigned int val;
@@ -696,148 +646,41 @@ static int hi3559av100_shub_default_clk_set(void)
return 0;
}
-static struct hisi_clock_data *hi3559av100_shub_clk_register(
- struct platform_device *pdev)
-{
- struct hisi_clock_data *clk_data = NULL;
- int ret;
-
- hi3559av100_shub_default_clk_set();
-
- clk_data = hisi_clk_alloc(pdev, HI3559AV100_SHUB_NR_CLKS);
- if (!clk_data)
- return ERR_PTR(-ENOMEM);
-
- ret = hisi_clk_register_fixed_rate(hi3559av100_shub_fixed_rate_clks,
- ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), clk_data);
- if (ret)
- return ERR_PTR(ret);
-
- ret = hisi_clk_register_mux(hi3559av100_shub_mux_clks,
- ARRAY_SIZE(hi3559av100_shub_mux_clks), clk_data);
- if (ret)
- goto unregister_fixed_rate;
-
- ret = hisi_clk_register_divider(hi3559av100_shub_div_clks,
- ARRAY_SIZE(hi3559av100_shub_div_clks), clk_data);
- if (ret)
- goto unregister_mux;
-
- ret = hisi_clk_register_gate(hi3559av100_shub_gate_clks,
- ARRAY_SIZE(hi3559av100_shub_gate_clks), clk_data);
- if (ret)
- goto unregister_factor;
-
- ret = of_clk_add_provider(pdev->dev.of_node,
- of_clk_src_onecell_get, &clk_data->clk_data);
- if (ret)
- goto unregister_gate;
-
- return clk_data;
-
-unregister_gate:
- hisi_clk_unregister_gate(hi3559av100_shub_gate_clks,
- ARRAY_SIZE(hi3559av100_shub_gate_clks), clk_data);
-unregister_factor:
- hisi_clk_unregister_divider(hi3559av100_shub_div_clks,
- ARRAY_SIZE(hi3559av100_shub_div_clks), clk_data);
-unregister_mux:
- hisi_clk_unregister_mux(hi3559av100_shub_mux_clks,
- ARRAY_SIZE(hi3559av100_shub_mux_clks), clk_data);
-unregister_fixed_rate:
- hisi_clk_unregister_fixed_rate(hi3559av100_shub_fixed_rate_clks,
- ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), clk_data);
- return ERR_PTR(ret);
-}
-
-static void hi3559av100_shub_clk_unregister(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- of_clk_del_provider(pdev->dev.of_node);
-
- hisi_clk_unregister_gate(hi3559av100_shub_gate_clks,
- ARRAY_SIZE(hi3559av100_shub_gate_clks), crg->clk_data);
- hisi_clk_unregister_divider(hi3559av100_shub_div_clks,
- ARRAY_SIZE(hi3559av100_shub_div_clks), crg->clk_data);
- hisi_clk_unregister_mux(hi3559av100_shub_mux_clks,
- ARRAY_SIZE(hi3559av100_shub_mux_clks), crg->clk_data);
- hisi_clk_unregister_fixed_rate(hi3559av100_shub_fixed_rate_clks,
- ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), crg->clk_data);
-}
-
-static const struct hisi_crg_funcs hi3559av100_shub_crg_funcs = {
- .register_clks = hi3559av100_shub_clk_register,
- .unregister_clks = hi3559av100_shub_clk_unregister,
+static const struct hisi_clocks hi3559av100_shub_clks = {
+ .nr = HI3559AV100_SHUB_NR_CLKS,
+ .prologue = hi3559av100_shub_default_clk_set,
+ .fixed_rate_clks = hi3559av100_shub_fixed_rate_clks,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks),
+ .mux_clks = hi3559av100_shub_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3559av100_shub_mux_clks),
+ .divider_clks = hi3559av100_shub_div_clks,
+ .divider_clks_num = ARRAY_SIZE(hi3559av100_shub_div_clks),
+ .gate_clks = hi3559av100_shub_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3559av100_shub_gate_clks),
};
static const struct of_device_id hi3559av100_crg_match_table[] = {
{
.compatible = "hisilicon,hi3559av100-clock",
- .data = &hi3559av100_crg_funcs
+ .data = &hi3559av100_clks
},
{
.compatible = "hisilicon,hi3559av100-shub-clock",
- .data = &hi3559av100_shub_crg_funcs
+ .data = &hi3559av100_shub_clks
},
{ }
};
MODULE_DEVICE_TABLE(of, hi3559av100_crg_match_table);
-static int hi3559av100_crg_probe(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg;
-
- crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);
- if (!crg)
- return -ENOMEM;
-
- crg->funcs = of_device_get_match_data(&pdev->dev);
- if (!crg->funcs)
- return -ENOENT;
-
- crg->rstc = hisi_reset_init(pdev);
- if (!crg->rstc)
- return -ENOMEM;
-
- crg->clk_data = crg->funcs->register_clks(pdev);
- if (IS_ERR(crg->clk_data)) {
- hisi_reset_exit(crg->rstc);
- return PTR_ERR(crg->clk_data);
- }
-
- platform_set_drvdata(pdev, crg);
- return 0;
-}
-
-static void hi3559av100_crg_remove(struct platform_device *pdev)
-{
- struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
-
- hisi_reset_exit(crg->rstc);
- crg->funcs->unregister_clks(pdev);
-}
-
static struct platform_driver hi3559av100_crg_driver = {
- .probe = hi3559av100_crg_probe,
- .remove_new = hi3559av100_crg_remove,
+ .probe = hisi_crg_probe,
+ .remove_new = hisi_crg_remove,
.driver = {
.name = "hi3559av100-clock",
.of_match_table = hi3559av100_crg_match_table,
},
};
-static int __init hi3559av100_crg_init(void)
-{
- return platform_driver_register(&hi3559av100_crg_driver);
-}
-core_initcall(hi3559av100_crg_init);
-
-static void __exit hi3559av100_crg_exit(void)
-{
- platform_driver_unregister(&hi3559av100_crg_driver);
-}
-module_exit(hi3559av100_crg_exit);
-
+module_platform_driver(hi3559av100_crg_driver);
MODULE_DESCRIPTION("HiSilicon Hi3559AV100 CRG Driver");
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hi3670.c | 250 +++++++++--------------------
1 file changed, 76 insertions(+), 174 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hi3670.c b/drivers/clk/hisilicon/clk-hi3670.c
index fa20ad144c8e..b6005be71290 100644
--- a/drivers/clk/hisilicon/clk-hi3670.c
+++ b/drivers/clk/hisilicon/clk-hi3670.c
@@ -9,8 +9,11 @@
#include <dt-bindings/clock/hi3670-clock.h>
#include <linux/clk-provider.h>
-#include <linux/of.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
+
#include "clk.h"
static const struct hisi_fixed_rate_clock hi3670_fixed_rate_clks[] = {
@@ -822,195 +825,94 @@ static const struct hisi_gate_clock hi3670_media2_gate_sep_clks[] = {
CLK_SET_RATE_PARENT, 0x00, 2, 0, },
};
-static void hi3670_clk_crgctrl_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
-
- int nr = ARRAY_SIZE(hi3670_fixed_rate_clks) +
- ARRAY_SIZE(hi3670_crgctrl_gate_sep_clks) +
- ARRAY_SIZE(hi3670_crgctrl_gate_clks) +
- ARRAY_SIZE(hi3670_crgctrl_mux_clks) +
- ARRAY_SIZE(hi3670_crg_fixed_factor_clks) +
- ARRAY_SIZE(hi3670_crgctrl_divider_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
-
- hisi_clk_register_fixed_rate(hi3670_fixed_rate_clks,
- ARRAY_SIZE(hi3670_fixed_rate_clks),
- clk_data);
- hisi_clk_register_gate_sep(hi3670_crgctrl_gate_sep_clks,
- ARRAY_SIZE(hi3670_crgctrl_gate_sep_clks),
- clk_data);
- hisi_clk_register_gate(hi3670_crgctrl_gate_clks,
- ARRAY_SIZE(hi3670_crgctrl_gate_clks),
- clk_data);
- hisi_clk_register_mux(hi3670_crgctrl_mux_clks,
- ARRAY_SIZE(hi3670_crgctrl_mux_clks),
- clk_data);
- hisi_clk_register_fixed_factor(hi3670_crg_fixed_factor_clks,
- ARRAY_SIZE(hi3670_crg_fixed_factor_clks),
- clk_data);
- hisi_clk_register_divider(hi3670_crgctrl_divider_clks,
- ARRAY_SIZE(hi3670_crgctrl_divider_clks),
- clk_data);
-}
-
-static void hi3670_clk_pctrl_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi3670_pctrl_gate_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
- hisi_clk_register_gate(hi3670_pctrl_gate_clks,
- ARRAY_SIZE(hi3670_pctrl_gate_clks), clk_data);
-}
-
-static void hi3670_clk_pmuctrl_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi3670_pmu_gate_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate(hi3670_pmu_gate_clks,
- ARRAY_SIZE(hi3670_pmu_gate_clks), clk_data);
-}
-
-static void hi3670_clk_sctrl_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi3670_sctrl_gate_sep_clks) +
- ARRAY_SIZE(hi3670_sctrl_gate_clks) +
- ARRAY_SIZE(hi3670_sctrl_mux_clks) +
- ARRAY_SIZE(hi3670_sctrl_divider_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate_sep(hi3670_sctrl_gate_sep_clks,
- ARRAY_SIZE(hi3670_sctrl_gate_sep_clks),
- clk_data);
- hisi_clk_register_gate(hi3670_sctrl_gate_clks,
- ARRAY_SIZE(hi3670_sctrl_gate_clks),
- clk_data);
- hisi_clk_register_mux(hi3670_sctrl_mux_clks,
- ARRAY_SIZE(hi3670_sctrl_mux_clks),
- clk_data);
- hisi_clk_register_divider(hi3670_sctrl_divider_clks,
- ARRAY_SIZE(hi3670_sctrl_divider_clks),
- clk_data);
-}
-
-static void hi3670_clk_iomcu_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi3670_iomcu_gate_sep_clks) +
- ARRAY_SIZE(hi3670_iomcu_fixed_factor_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate(hi3670_iomcu_gate_sep_clks,
- ARRAY_SIZE(hi3670_iomcu_gate_sep_clks), clk_data);
-
- hisi_clk_register_fixed_factor(hi3670_iomcu_fixed_factor_clks,
- ARRAY_SIZE(hi3670_iomcu_fixed_factor_clks),
- clk_data);
-}
-
-static void hi3670_clk_media1_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
-
- int nr = ARRAY_SIZE(hi3670_media1_gate_sep_clks) +
- ARRAY_SIZE(hi3670_media1_gate_clks) +
- ARRAY_SIZE(hi3670_media1_mux_clks) +
- ARRAY_SIZE(hi3670_media1_divider_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate_sep(hi3670_media1_gate_sep_clks,
- ARRAY_SIZE(hi3670_media1_gate_sep_clks),
- clk_data);
- hisi_clk_register_gate(hi3670_media1_gate_clks,
- ARRAY_SIZE(hi3670_media1_gate_clks),
- clk_data);
- hisi_clk_register_mux(hi3670_media1_mux_clks,
- ARRAY_SIZE(hi3670_media1_mux_clks),
- clk_data);
- hisi_clk_register_divider(hi3670_media1_divider_clks,
- ARRAY_SIZE(hi3670_media1_divider_clks),
- clk_data);
-}
-
-static void hi3670_clk_media2_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
-
- int nr = ARRAY_SIZE(hi3670_media2_gate_sep_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate_sep(hi3670_media2_gate_sep_clks,
- ARRAY_SIZE(hi3670_media2_gate_sep_clks),
- clk_data);
-}
+static const struct hisi_clocks hi3670_clk_crgctrl_clks = {
+ .fixed_rate_clks = hi3670_fixed_rate_clks,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi3670_fixed_rate_clks),
+ .fixed_factor_clks = hi3670_crg_fixed_factor_clks,
+ .fixed_factor_clks_num = ARRAY_SIZE(hi3670_crg_fixed_factor_clks),
+ .mux_clks = hi3670_crgctrl_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3670_crgctrl_mux_clks),
+ .divider_clks = hi3670_crgctrl_divider_clks,
+ .divider_clks_num = ARRAY_SIZE(hi3670_crgctrl_divider_clks),
+ .gate_clks = hi3670_crgctrl_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3670_crgctrl_gate_clks),
+ .gate_sep_clks = hi3670_crgctrl_gate_sep_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi3670_crgctrl_gate_sep_clks),
+};
+
+static const struct hisi_clocks hi3670_clk_pctrl_clks = {
+ .gate_clks = hi3670_pctrl_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3670_pctrl_gate_clks),
+};
+
+static const struct hisi_clocks hi3670_clk_pmuctrl_clks = {
+ .gate_clks = hi3670_pmu_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3670_pmu_gate_clks),
+};
+
+static const struct hisi_clocks hi3670_clk_sctrl_clks = {
+ .mux_clks = hi3670_sctrl_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3670_sctrl_mux_clks),
+ .divider_clks = hi3670_sctrl_divider_clks,
+ .divider_clks_num = ARRAY_SIZE(hi3670_sctrl_divider_clks),
+ .gate_clks = hi3670_sctrl_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3670_sctrl_gate_clks),
+ .gate_sep_clks = hi3670_sctrl_gate_sep_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi3670_sctrl_gate_sep_clks),
+};
+
+static const struct hisi_clocks hi3670_clk_iomcu_clks = {
+ .fixed_factor_clks = hi3670_iomcu_fixed_factor_clks,
+ .fixed_factor_clks_num = ARRAY_SIZE(hi3670_iomcu_fixed_factor_clks),
+ .gate_clks = hi3670_iomcu_gate_sep_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3670_iomcu_gate_sep_clks),
+};
+
+static const struct hisi_clocks hi3670_clk_media1_clks = {
+ .mux_clks = hi3670_media1_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3670_media1_mux_clks),
+ .divider_clks = hi3670_media1_divider_clks,
+ .divider_clks_num = ARRAY_SIZE(hi3670_media1_divider_clks),
+ .gate_clks = hi3670_media1_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3670_media1_gate_clks),
+ .gate_sep_clks = hi3670_media1_gate_sep_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi3670_media1_gate_sep_clks),
+};
+
+static const struct hisi_clocks hi3670_clk_media2_clks = {
+ .gate_sep_clks = hi3670_media2_gate_sep_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi3670_media2_gate_sep_clks),
+};
static const struct of_device_id hi3670_clk_match_table[] = {
{ .compatible = "hisilicon,hi3670-crgctrl",
- .data = hi3670_clk_crgctrl_init },
+ .data = &hi3670_clk_crgctrl_clks },
{ .compatible = "hisilicon,hi3670-pctrl",
- .data = hi3670_clk_pctrl_init },
+ .data = &hi3670_clk_pctrl_clks },
{ .compatible = "hisilicon,hi3670-pmuctrl",
- .data = hi3670_clk_pmuctrl_init },
+ .data = &hi3670_clk_pmuctrl_clks },
{ .compatible = "hisilicon,hi3670-sctrl",
- .data = hi3670_clk_sctrl_init },
+ .data = &hi3670_clk_sctrl_clks },
{ .compatible = "hisilicon,hi3670-iomcu",
- .data = hi3670_clk_iomcu_init },
+ .data = &hi3670_clk_iomcu_clks },
{ .compatible = "hisilicon,hi3670-media1-crg",
- .data = hi3670_clk_media1_init },
+ .data = &hi3670_clk_media1_clks },
{ .compatible = "hisilicon,hi3670-media2-crg",
- .data = hi3670_clk_media2_init },
+ .data = &hi3670_clk_media2_clks },
{ }
};
-
-static int hi3670_clk_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device_node *np = pdev->dev.of_node;
- void (*init_func)(struct device_node *np);
-
- init_func = of_device_get_match_data(dev);
- if (!init_func)
- return -ENODEV;
-
- init_func(np);
-
- return 0;
-}
+MODULE_DEVICE_TABLE(of, hi3670_clk_match_table);
static struct platform_driver hi3670_clk_driver = {
- .probe = hi3670_clk_probe,
+ .probe = hisi_clk_probe,
+ .remove_new = hisi_clk_remove,
.driver = {
.name = "hi3670-clk",
.of_match_table = hi3670_clk_match_table,
},
};
-static int __init hi3670_clk_init(void)
-{
- return platform_driver_register(&hi3670_clk_driver);
-}
-core_initcall(hi3670_clk_init);
+module_platform_driver(hi3670_clk_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("HiSilicon Hi3670 Clock Driver");
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hi6220.c | 230 ++++++++++++++---------------
1 file changed, 113 insertions(+), 117 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c
index c9d5a88da053..1b40d0d90229 100644
--- a/drivers/clk/hisilicon/clk-hi6220.c
+++ b/drivers/clk/hisilicon/clk-hi6220.c
@@ -9,17 +9,24 @@
#include <linux/kernel.h>
#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
-#include <linux/io.h>
-#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
#include <dt-bindings/clock/hi6220-clock.h>
#include "clk.h"
+static int
+hi6220_clk_register_divider_stub(struct device *dev, const void *clks,
+ size_t num, struct hisi_clock_data *data)
+{
+ /* INCOMPLETE PATCH */
+ hi6220_clk_register_divider(clks, num, data);
+ return 0;
+}
/* clocks in AO (always on) controller */
-static struct hisi_fixed_rate_clock hi6220_fixed_rate_clks[] __initdata = {
+static struct hisi_fixed_rate_clock hi6220_fixed_rate_clks[] = {
{ HI6220_REF32K, "ref32k", NULL, 0, 32764, },
{ HI6220_CLK_TCXO, "clk_tcxo", NULL, 0, 19200000, },
{ HI6220_MMC1_PAD, "mmc1_pad", NULL, 0, 100000000, },
@@ -35,7 +42,7 @@ static struct hisi_fixed_rate_clock hi6220_fixed_rate_clks[] __initdata = {
{ HI6220_PLL_DDR, "ddrpll0", NULL, 0, 1600000000,},
};
-static struct hisi_fixed_factor_clock hi6220_fixed_factor_clks[] __initdata = {
+static struct hisi_fixed_factor_clock hi6220_fixed_factor_clks[] = {
{ HI6220_300M, "clk_300m", "syspll", 1, 4, 0, },
{ HI6220_150M, "clk_150m", "clk_300m", 1, 2, 0, },
{ HI6220_PICOPHY_SRC, "picophy_src", "clk_150m", 1, 4, 0, },
@@ -48,7 +55,7 @@ static struct hisi_fixed_factor_clock hi6220_fixed_factor_clks[] __initdata = {
{ HI6220_MMC2_SMP, "mmc2_sample", "mmc2_sel", 1, 8, 0, },
};
-static struct hisi_gate_clock hi6220_separated_gate_clks_ao[] __initdata = {
+static struct hisi_gate_clock hi6220_separated_gate_clks_ao[] = {
{ HI6220_WDT0_PCLK, "wdt0_pclk", "ref32k", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 12, 0, },
{ HI6220_WDT1_PCLK, "wdt1_pclk", "ref32k", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 13, 0, },
{ HI6220_WDT2_PCLK, "wdt2_pclk", "ref32k", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 14, 0, },
@@ -66,47 +73,43 @@ static struct hisi_gate_clock hi6220_separated_gate_clks_ao[] __initdata = {
{ HI6220_RTC1_PCLK, "rtc1_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 26, 0, },
};
-static void __init hi6220_clk_ao_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data_ao;
-
- clk_data_ao = hisi_clk_init(np, HI6220_AO_NR_CLKS);
- if (!clk_data_ao)
- return;
-
- hisi_clk_register_fixed_rate(hi6220_fixed_rate_clks,
- ARRAY_SIZE(hi6220_fixed_rate_clks), clk_data_ao);
-
- hisi_clk_register_fixed_factor(hi6220_fixed_factor_clks,
- ARRAY_SIZE(hi6220_fixed_factor_clks), clk_data_ao);
+static const struct hisi_clocks hi6220_ao_clks = {
+ .nr = HI6220_AO_NR_CLKS,
+ .fixed_rate_clks = hi6220_fixed_rate_clks,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi6220_fixed_rate_clks),
+ .fixed_factor_clks = hi6220_fixed_factor_clks,
+ .fixed_factor_clks_num = ARRAY_SIZE(hi6220_fixed_factor_clks),
+ .gate_sep_clks = hi6220_separated_gate_clks_ao,
+ .gate_sep_clks_num = ARRAY_SIZE(hi6220_separated_gate_clks_ao),
+};
- hisi_clk_register_gate_sep(hi6220_separated_gate_clks_ao,
- ARRAY_SIZE(hi6220_separated_gate_clks_ao), clk_data_ao);
+static void hi6220_clk_ao_early_init(struct device_node *np)
+{
+ hisi_clk_early_init(np, &hi6220_ao_clks);
}
/* Allow reset driver to probe as well */
-CLK_OF_DECLARE_DRIVER(hi6220_clk_ao, "hisilicon,hi6220-aoctrl", hi6220_clk_ao_init);
-
+CLK_OF_DECLARE_DRIVER(hi6220_clk_ao, "hisilicon,hi6220-aoctrl", hi6220_clk_ao_early_init);
/* clocks in sysctrl */
-static const char *mmc0_mux0_p[] __initdata = { "pll_ddr_gate", "syspll", };
-static const char *mmc0_mux1_p[] __initdata = { "mmc0_mux0", "pll_media_gate", };
-static const char *mmc0_src_p[] __initdata = { "mmc0srcsel", "mmc0_div", };
-static const char *mmc1_mux0_p[] __initdata = { "pll_ddr_gate", "syspll", };
-static const char *mmc1_mux1_p[] __initdata = { "mmc1_mux0", "pll_media_gate", };
-static const char *mmc1_src_p[] __initdata = { "mmc1srcsel", "mmc1_div", };
-static const char *mmc2_mux0_p[] __initdata = { "pll_ddr_gate", "syspll", };
-static const char *mmc2_mux1_p[] __initdata = { "mmc2_mux0", "pll_media_gate", };
-static const char *mmc2_src_p[] __initdata = { "mmc2srcsel", "mmc2_div", };
-static const char *mmc0_sample_in[] __initdata = { "mmc0_sample", "mmc0_pad", };
-static const char *mmc1_sample_in[] __initdata = { "mmc1_sample", "mmc1_pad", };
-static const char *mmc2_sample_in[] __initdata = { "mmc2_sample", "mmc2_pad", };
-static const char *uart1_src[] __initdata = { "clk_tcxo", "clk_150m", };
-static const char *uart2_src[] __initdata = { "clk_tcxo", "clk_150m", };
-static const char *uart3_src[] __initdata = { "clk_tcxo", "clk_150m", };
-static const char *uart4_src[] __initdata = { "clk_tcxo", "clk_150m", };
-static const char *hifi_src[] __initdata = { "syspll", "pll_media_gate", };
-
-static struct hisi_gate_clock hi6220_separated_gate_clks_sys[] __initdata = {
+static const char *const mmc0_mux0_p[] = { "pll_ddr_gate", "syspll", };
+static const char *const mmc0_mux1_p[] = { "mmc0_mux0", "pll_media_gate", };
+static const char *const mmc0_src_p[] = { "mmc0srcsel", "mmc0_div", };
+static const char *const mmc1_mux0_p[] = { "pll_ddr_gate", "syspll", };
+static const char *const mmc1_mux1_p[] = { "mmc1_mux0", "pll_media_gate", };
+static const char *const mmc1_src_p[] = { "mmc1srcsel", "mmc1_div", };
+static const char *const mmc2_mux0_p[] = { "pll_ddr_gate", "syspll", };
+static const char *const mmc2_mux1_p[] = { "mmc2_mux0", "pll_media_gate", };
+static const char *const mmc2_src_p[] = { "mmc2srcsel", "mmc2_div", };
+static const char *const mmc0_sample_in[] = { "mmc0_sample", "mmc0_pad", };
+static const char *const mmc1_sample_in[] = { "mmc1_sample", "mmc1_pad", };
+static const char *const mmc2_sample_in[] = { "mmc2_sample", "mmc2_pad", };
+static const char *const uart1_src[] = { "clk_tcxo", "clk_150m", };
+static const char *const uart2_src[] = { "clk_tcxo", "clk_150m", };
+static const char *const uart3_src[] = { "clk_tcxo", "clk_150m", };
+static const char *const uart4_src[] = { "clk_tcxo", "clk_150m", };
+static const char *const hifi_src[] = { "syspll", "pll_media_gate", };
+
+static struct hisi_gate_clock hi6220_separated_gate_clks_sys[] = {
{ HI6220_MMC0_CLK, "mmc0_clk", "mmc0_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 0, 0, },
{ HI6220_MMC0_CIUCLK, "mmc0_ciuclk", "mmc0_smp_in", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 0, 0, },
{ HI6220_MMC1_CLK, "mmc1_clk", "mmc1_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x200, 1, 0, },
@@ -143,7 +146,7 @@ static struct hisi_gate_clock hi6220_separated_gate_clks_sys[] __initdata = {
{ HI6220_CS_ATB_SYSPLL, "cs_atb_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IS_CRITICAL, 0x270, 12, 0, },
};
-static struct hisi_mux_clock hi6220_mux_clks_sys[] __initdata = {
+static struct hisi_mux_clock hi6220_mux_clks_sys[] = {
{ HI6220_MMC0_SRC, "mmc0_src", mmc0_src_p, ARRAY_SIZE(mmc0_src_p), CLK_SET_RATE_PARENT, 0x4, 0, 1, 0, },
{ HI6220_MMC0_SMP_IN, "mmc0_smp_in", mmc0_sample_in, ARRAY_SIZE(mmc0_sample_in), CLK_SET_RATE_PARENT, 0x4, 0, 1, 0, },
{ HI6220_MMC1_SRC, "mmc1_src", mmc1_src_p, ARRAY_SIZE(mmc1_src_p), CLK_SET_RATE_PARENT, 0x4, 2, 1, 0, },
@@ -163,7 +166,7 @@ static struct hisi_mux_clock hi6220_mux_clks_sys[] __initdata = {
{ HI6220_MMC2_MUX1, "mmc2_mux1", mmc2_mux1_p, ARRAY_SIZE(mmc2_mux1_p), CLK_SET_RATE_PARENT, 0x400, 15, 1, CLK_MUX_HIWORD_MASK,},
};
-static struct hi6220_divider_clock hi6220_div_clks_sys[] __initdata = {
+static struct hi6220_divider_clock hi6220_div_clks_sys[] = {
{ HI6220_CLK_BUS, "clk_bus", "clk_300m", CLK_SET_RATE_PARENT, 0x490, 0, 4, 7, },
{ HI6220_MMC0_DIV, "mmc0_div", "mmc0_syspll", CLK_SET_RATE_PARENT, 0x494, 0, 6, 7, },
{ HI6220_MMC1_DIV, "mmc1_div", "mmc1_syspll", CLK_SET_RATE_PARENT, 0x498, 0, 6, 7, },
@@ -174,32 +177,23 @@ static struct hi6220_divider_clock hi6220_div_clks_sys[] __initdata = {
{ HI6220_CS_ATB_DIV, "cs_atb_div", "cs_atb_syspll", CLK_SET_RATE_PARENT, 0x4a4, 0, 4, 7, },
};
-static void __init hi6220_clk_sys_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
-
- clk_data = hisi_clk_init(np, HI6220_SYS_NR_CLKS);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate_sep(hi6220_separated_gate_clks_sys,
- ARRAY_SIZE(hi6220_separated_gate_clks_sys), clk_data);
-
- hisi_clk_register_mux(hi6220_mux_clks_sys,
- ARRAY_SIZE(hi6220_mux_clks_sys), clk_data);
-
- hi6220_clk_register_divider(hi6220_div_clks_sys,
- ARRAY_SIZE(hi6220_div_clks_sys), clk_data);
-}
-CLK_OF_DECLARE_DRIVER(hi6220_clk_sys, "hisilicon,hi6220-sysctrl", hi6220_clk_sys_init);
-
+static const struct hisi_clocks hi6220_sys_clks = {
+ .nr = HI6220_SYS_NR_CLKS,
+ .mux_clks = hi6220_mux_clks_sys,
+ .mux_clks_num = ARRAY_SIZE(hi6220_mux_clks_sys),
+ .gate_sep_clks = hi6220_separated_gate_clks_sys,
+ .gate_sep_clks_num = ARRAY_SIZE(hi6220_separated_gate_clks_sys),
+ .customized_clks = hi6220_div_clks_sys,
+ .customized_clks_num = ARRAY_SIZE(hi6220_div_clks_sys),
+ .clk_register_customized = hi6220_clk_register_divider_stub,
+};
/* clocks in media controller */
-static const char *clk_1000_1200_src[] __initdata = { "pll_gpu_gate", "media_syspll_src", };
-static const char *clk_1440_1200_src[] __initdata = { "media_syspll_src", "media_pll_src", };
-static const char *clk_1000_1440_src[] __initdata = { "pll_gpu_gate", "media_pll_src", };
+static const char *const clk_1000_1200_src[] = { "pll_gpu_gate", "media_syspll_src", };
+static const char *const clk_1440_1200_src[] = { "media_syspll_src", "media_pll_src", };
+static const char *const clk_1000_1440_src[] = { "pll_gpu_gate", "media_pll_src", };
-static struct hisi_gate_clock hi6220_separated_gate_clks_media[] __initdata = {
+static struct hisi_gate_clock hi6220_separated_gate_clks_media[] = {
{ HI6220_DSI_PCLK, "dsi_pclk", "vpucodec", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 0, 0, },
{ HI6220_G3D_PCLK, "g3d_pclk", "vpucodec", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 1, 0, },
{ HI6220_ACLK_CODEC_VPU, "aclk_codec_vpu", "ade_core_src", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 3, 0, },
@@ -215,13 +209,13 @@ static struct hisi_gate_clock hi6220_separated_gate_clks_media[] __initdata = {
{ HI6220_MED_SYSPLL, "media_syspll_src", "media_syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x520, 17, 0, },
};
-static struct hisi_mux_clock hi6220_mux_clks_media[] __initdata = {
+static struct hisi_mux_clock hi6220_mux_clks_media[] = {
{ HI6220_1440_1200, "clk_1440_1200", clk_1440_1200_src, ARRAY_SIZE(clk_1440_1200_src), CLK_SET_RATE_PARENT, 0x51c, 0, 1, 0, },
{ HI6220_1000_1200, "clk_1000_1200", clk_1000_1200_src, ARRAY_SIZE(clk_1000_1200_src), CLK_SET_RATE_PARENT, 0x51c, 1, 1, 0, },
{ HI6220_1000_1440, "clk_1000_1440", clk_1000_1440_src, ARRAY_SIZE(clk_1000_1440_src), CLK_SET_RATE_PARENT, 0x51c, 6, 1, 0, },
};
-static struct hi6220_divider_clock hi6220_div_clks_media[] __initdata = {
+static struct hi6220_divider_clock hi6220_div_clks_media[] = {
{ HI6220_CODEC_JPEG, "codec_jpeg_aclk", "media_pll_src", CLK_SET_RATE_PARENT, 0xcbc, 0, 4, 23, },
{ HI6220_ISP_SCLK_SRC, "isp_sclk_src", "isp_sclk_gate", CLK_SET_RATE_PARENT, 0xcbc, 8, 4, 15, },
{ HI6220_ISP_SCLK1, "isp_sclk1", "isp_sclk_gate1", CLK_SET_RATE_PARENT, 0xcbc, 24, 4, 31, },
@@ -231,28 +225,19 @@ static struct hi6220_divider_clock hi6220_div_clks_media[] __initdata = {
{ HI6220_CODEC_VPU_SRC, "codec_vpu_src", "codec_vpu_gate", CLK_SET_RATE_PARENT, 0xcc4, 24, 6, 31, },
};
-static void __init hi6220_clk_media_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
-
- clk_data = hisi_clk_init(np, HI6220_MEDIA_NR_CLKS);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate_sep(hi6220_separated_gate_clks_media,
- ARRAY_SIZE(hi6220_separated_gate_clks_media), clk_data);
-
- hisi_clk_register_mux(hi6220_mux_clks_media,
- ARRAY_SIZE(hi6220_mux_clks_media), clk_data);
-
- hi6220_clk_register_divider(hi6220_div_clks_media,
- ARRAY_SIZE(hi6220_div_clks_media), clk_data);
-}
-CLK_OF_DECLARE_DRIVER(hi6220_clk_media, "hisilicon,hi6220-mediactrl", hi6220_clk_media_init);
-
+static const struct hisi_clocks hi6220_media_clks = {
+ .nr = HI6220_MEDIA_NR_CLKS,
+ .mux_clks = hi6220_mux_clks_media,
+ .mux_clks_num = ARRAY_SIZE(hi6220_mux_clks_media),
+ .gate_sep_clks = hi6220_separated_gate_clks_media,
+ .gate_sep_clks_num = ARRAY_SIZE(hi6220_separated_gate_clks_media),
+ .customized_clks = hi6220_div_clks_media,
+ .customized_clks_num = ARRAY_SIZE(hi6220_div_clks_media),
+ .clk_register_customized = hi6220_clk_register_divider_stub,
+};
/* clocks in pmctrl */
-static struct hisi_gate_clock hi6220_gate_clks_power[] __initdata = {
+static struct hisi_gate_clock hi6220_gate_clks_power[] = {
{ HI6220_PLL_GPU_GATE, "pll_gpu_gate", "gpupll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x8, 0, 0, },
{ HI6220_PLL1_DDR_GATE, "pll1_ddr_gate", "ddrpll1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x10, 0, 0, },
{ HI6220_PLL_DDR_GATE, "pll_ddr_gate", "ddrpll0", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x18, 0, 0, },
@@ -260,26 +245,19 @@ static struct hisi_gate_clock hi6220_gate_clks_power[] __initdata = {
{ HI6220_PLL0_BBP_GATE, "pll0_bbp_gate", "bbppll0", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x48, 0, 0, },
};
-static struct hi6220_divider_clock hi6220_div_clks_power[] __initdata = {
+static struct hi6220_divider_clock hi6220_div_clks_power[] = {
{ HI6220_DDRC_SRC, "ddrc_src", "ddr_sel_src", CLK_SET_RATE_PARENT, 0x5a8, 0, 4, 0, },
{ HI6220_DDRC_AXI1, "ddrc_axi1", "ddrc_src", CLK_SET_RATE_PARENT, 0x5a8, 8, 2, 0, },
};
-static void __init hi6220_clk_power_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
-
- clk_data = hisi_clk_init(np, HI6220_POWER_NR_CLKS);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate(hi6220_gate_clks_power,
- ARRAY_SIZE(hi6220_gate_clks_power), clk_data);
-
- hi6220_clk_register_divider(hi6220_div_clks_power,
- ARRAY_SIZE(hi6220_div_clks_power), clk_data);
-}
-CLK_OF_DECLARE(hi6220_clk_power, "hisilicon,hi6220-pmctrl", hi6220_clk_power_init);
+static const struct hisi_clocks hi6220_power_clks = {
+ .nr = HI6220_POWER_NR_CLKS,
+ .gate_clks = hi6220_gate_clks_power,
+ .gate_clks_num = ARRAY_SIZE(hi6220_gate_clks_power),
+ .customized_clks = hi6220_div_clks_power,
+ .customized_clks_num = ARRAY_SIZE(hi6220_div_clks_power),
+ .clk_register_customized = hi6220_clk_register_divider_stub,
+};
/* clocks in acpu */
static const struct hisi_gate_clock hi6220_acpu_sc_gate_sep_clks[] = {
@@ -287,18 +265,36 @@ static const struct hisi_gate_clock hi6220_acpu_sc_gate_sep_clks[] = {
CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, 0xc, 11, 0, },
};
-static void __init hi6220_clk_acpu_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi6220_acpu_sc_gate_sep_clks);
+static const struct hisi_clocks hi6220_acpu_clks = {
+ .gate_sep_clks = hi6220_acpu_sc_gate_sep_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi6220_acpu_sc_gate_sep_clks),
+};
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
+static const struct of_device_id hi6220_clk_match_table[] = {
+ { .compatible = "hisilicon,hi6220-aoctrl",
+ .data = &hi6220_ao_clks },
+ { .compatible = "hisilicon,hi6220-sysctrl",
+ .data = &hi6220_sys_clks },
+ { .compatible = "hisilicon,hi6220-mediactrl",
+ .data = &hi6220_media_clks },
+ { .compatible = "hisilicon,hi6220-pmctrl",
+ .data = &hi6220_power_clks },
+ { .compatible = "hisilicon,hi6220-acpu-sctrl",
+ .data = &hi6220_acpu_clks },
+ { }
+};
+MODULE_DEVICE_TABLE(of, hi6220_clk_match_table);
+
+static struct platform_driver hi6220_clk_driver = {
+ .probe = hisi_clk_probe,
+ .remove_new = hisi_clk_remove,
+ .driver = {
+ .name = "hi6220-clock",
+ .of_match_table = hi6220_clk_match_table,
+ },
+};
- hisi_clk_register_gate_sep(hi6220_acpu_sc_gate_sep_clks,
- ARRAY_SIZE(hi6220_acpu_sc_gate_sep_clks),
- clk_data);
-}
+module_platform_driver(hi6220_clk_driver);
-CLK_OF_DECLARE(hi6220_clk_acpu, "hisilicon,hi6220-acpu-sctrl", hi6220_clk_acpu_init);
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("HiSilicon Hi6220 Clock Driver");
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hi3660.c | 194 ++++++++---------------------
1 file changed, 54 insertions(+), 140 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hi3660.c b/drivers/clk/hisilicon/clk-hi3660.c
index 50f13dbb0e48..7fc5c16e5264 100644
--- a/drivers/clk/hisilicon/clk-hi3660.c
+++ b/drivers/clk/hisilicon/clk-hi3660.c
@@ -5,9 +5,13 @@
*/
#include <dt-bindings/clock/hi3660-clock.h>
+
#include <linux/clk-provider.h>
-#include <linux/of.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
+
#include "clk.h"
static const struct hisi_fixed_rate_clock hi3660_fixed_rate_clks[] = {
@@ -469,169 +473,79 @@ static const struct hisi_gate_clock hi3660_iomcu_gate_sep_clks[] = {
CLK_SET_RATE_PARENT, 0x90, 0, 0, },
};
-static struct hisi_clock_data *clk_crgctrl_data;
-
-static void hi3660_clk_iomcu_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi3660_iomcu_gate_sep_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate_sep(hi3660_iomcu_gate_sep_clks,
- ARRAY_SIZE(hi3660_iomcu_gate_sep_clks),
- clk_data);
-}
-
-static void hi3660_clk_pmuctrl_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi3660_pmu_gate_clks);
-
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
-
- hisi_clk_register_gate(hi3660_pmu_gate_clks,
- ARRAY_SIZE(hi3660_pmu_gate_clks), clk_data);
-}
+static const struct hisi_clocks hi3660_clk_iomcu_clks = {
+ .gate_sep_clks = hi3660_iomcu_gate_sep_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi3660_iomcu_gate_sep_clks),
+};
-static void hi3660_clk_pctrl_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi3660_pctrl_gate_clks);
+static const struct hisi_clocks hi3660_clk_pmuctrl_clks = {
+ .gate_clks = hi3660_pmu_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3660_pmu_gate_clks),
+};
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
- hisi_clk_register_gate(hi3660_pctrl_gate_clks,
- ARRAY_SIZE(hi3660_pctrl_gate_clks), clk_data);
-}
+static const struct hisi_clocks hi3660_clk_pctrl_clks = {
+ .gate_clks = hi3660_pctrl_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3660_pctrl_gate_clks),
+};
-static void hi3660_clk_sctrl_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
- int nr = ARRAY_SIZE(hi3660_sctrl_gate_clks) +
- ARRAY_SIZE(hi3660_sctrl_gate_sep_clks) +
- ARRAY_SIZE(hi3660_sctrl_mux_clks) +
- ARRAY_SIZE(hi3660_sctrl_divider_clks);
+static const struct hisi_clocks hi3660_clk_sctrl_clks = {
+ .mux_clks = hi3660_sctrl_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3660_sctrl_mux_clks),
+ .divider_clks = hi3660_sctrl_divider_clks,
+ .divider_clks_num = ARRAY_SIZE(hi3660_sctrl_divider_clks),
+ .gate_clks = hi3660_sctrl_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3660_sctrl_gate_clks),
+ .gate_sep_clks = hi3660_sctrl_gate_sep_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi3660_sctrl_gate_sep_clks),
+};
- clk_data = hisi_clk_init(np, nr);
- if (!clk_data)
- return;
- hisi_clk_register_gate(hi3660_sctrl_gate_clks,
- ARRAY_SIZE(hi3660_sctrl_gate_clks), clk_data);
- hisi_clk_register_gate_sep(hi3660_sctrl_gate_sep_clks,
- ARRAY_SIZE(hi3660_sctrl_gate_sep_clks),
- clk_data);
- hisi_clk_register_mux(hi3660_sctrl_mux_clks,
- ARRAY_SIZE(hi3660_sctrl_mux_clks), clk_data);
- hisi_clk_register_divider(hi3660_sctrl_divider_clks,
- ARRAY_SIZE(hi3660_sctrl_divider_clks),
- clk_data);
-}
+static const struct hisi_clocks hi3660_clk_crgctrl_clks = {
+ .fixed_rate_clks = hi3660_fixed_rate_clks,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi3660_fixed_rate_clks),
+ .fixed_factor_clks = hi3660_crg_fixed_factor_clks,
+ .fixed_factor_clks_num = ARRAY_SIZE(hi3660_crg_fixed_factor_clks),
+ .mux_clks = hi3660_crgctrl_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3660_crgctrl_mux_clks),
+ .divider_clks = hi3660_crgctrl_divider_clks,
+ .divider_clks_num = ARRAY_SIZE(hi3660_crgctrl_divider_clks),
+ .gate_clks = hi3660_crgctrl_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hi3660_crgctrl_gate_clks),
+ .gate_sep_clks = hi3660_crgctrl_gate_sep_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi3660_crgctrl_gate_sep_clks),
+};
static void hi3660_clk_crgctrl_early_init(struct device_node *np)
{
- int nr = ARRAY_SIZE(hi3660_fixed_rate_clks) +
- ARRAY_SIZE(hi3660_crgctrl_gate_sep_clks) +
- ARRAY_SIZE(hi3660_crgctrl_gate_clks) +
- ARRAY_SIZE(hi3660_crgctrl_mux_clks) +
- ARRAY_SIZE(hi3660_crg_fixed_factor_clks) +
- ARRAY_SIZE(hi3660_crgctrl_divider_clks);
- int i;
-
- clk_crgctrl_data = hisi_clk_init(np, nr);
- if (!clk_crgctrl_data)
- return;
-
- for (i = 0; i < nr; i++)
- clk_crgctrl_data->clk_data.clks[i] = ERR_PTR(-EPROBE_DEFER);
-
- hisi_clk_register_fixed_rate(hi3660_fixed_rate_clks,
- ARRAY_SIZE(hi3660_fixed_rate_clks),
- clk_crgctrl_data);
+ hisi_clk_early_init(np, &hi3660_clk_crgctrl_clks);
}
CLK_OF_DECLARE_DRIVER(hi3660_clk_crgctrl, "hisilicon,hi3660-crgctrl",
hi3660_clk_crgctrl_early_init);
-static void hi3660_clk_crgctrl_init(struct device_node *np)
-{
- struct clk **clks;
- int i;
-
- if (!clk_crgctrl_data)
- hi3660_clk_crgctrl_early_init(np);
-
- /* clk_crgctrl_data initialization failed */
- if (!clk_crgctrl_data)
- return;
-
- hisi_clk_register_gate_sep(hi3660_crgctrl_gate_sep_clks,
- ARRAY_SIZE(hi3660_crgctrl_gate_sep_clks),
- clk_crgctrl_data);
- hisi_clk_register_gate(hi3660_crgctrl_gate_clks,
- ARRAY_SIZE(hi3660_crgctrl_gate_clks),
- clk_crgctrl_data);
- hisi_clk_register_mux(hi3660_crgctrl_mux_clks,
- ARRAY_SIZE(hi3660_crgctrl_mux_clks),
- clk_crgctrl_data);
- hisi_clk_register_fixed_factor(hi3660_crg_fixed_factor_clks,
- ARRAY_SIZE(hi3660_crg_fixed_factor_clks),
- clk_crgctrl_data);
- hisi_clk_register_divider(hi3660_crgctrl_divider_clks,
- ARRAY_SIZE(hi3660_crgctrl_divider_clks),
- clk_crgctrl_data);
-
- clks = clk_crgctrl_data->clk_data.clks;
- for (i = 0; i < clk_crgctrl_data->clk_data.clk_num; i++) {
- if (IS_ERR(clks[i]) && PTR_ERR(clks[i]) != -EPROBE_DEFER)
- pr_err("Failed to register crgctrl clock[%d] err=%ld\n",
- i, PTR_ERR(clks[i]));
- }
-}
-
static const struct of_device_id hi3660_clk_match_table[] = {
{ .compatible = "hisilicon,hi3660-crgctrl",
- .data = hi3660_clk_crgctrl_init },
+ .data = &hi3660_clk_crgctrl_clks },
{ .compatible = "hisilicon,hi3660-pctrl",
- .data = hi3660_clk_pctrl_init },
+ .data = &hi3660_clk_pctrl_clks },
{ .compatible = "hisilicon,hi3660-pmuctrl",
- .data = hi3660_clk_pmuctrl_init },
+ .data = &hi3660_clk_pmuctrl_clks },
{ .compatible = "hisilicon,hi3660-sctrl",
- .data = hi3660_clk_sctrl_init },
+ .data = &hi3660_clk_sctrl_clks },
{ .compatible = "hisilicon,hi3660-iomcu",
- .data = hi3660_clk_iomcu_init },
+ .data = &hi3660_clk_iomcu_clks },
{ }
};
-
-static int hi3660_clk_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device_node *np = pdev->dev.of_node;
- void (*init_func)(struct device_node *np);
-
- init_func = of_device_get_match_data(dev);
- if (!init_func)
- return -ENODEV;
-
- init_func(np);
-
- return 0;
-}
+MODULE_DEVICE_TABLE(of, hi3660_clk_match_table);
static struct platform_driver hi3660_clk_driver = {
- .probe = hi3660_clk_probe,
+ .probe = hisi_clk_probe,
+ .remove_new = hisi_clk_remove,
.driver = {
.name = "hi3660-clk",
.of_match_table = hi3660_clk_match_table,
},
};
-static int __init hi3660_clk_init(void)
-{
- return platform_driver_register(&hi3660_clk_driver);
-}
-core_initcall(hi3660_clk_init);
+module_platform_driver(hi3660_clk_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("HiSilicon Hi3660 Clock Driver");
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hix5hd2.c | 85 ++++++++++++++++++-----------
1 file changed, 52 insertions(+), 33 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hix5hd2.c b/drivers/clk/hisilicon/clk-hix5hd2.c
index 64bdd3f05725..0a3f1320d0d5 100644
--- a/drivers/clk/hisilicon/clk-hix5hd2.c
+++ b/drivers/clk/hisilicon/clk-hix5hd2.c
@@ -4,13 +4,17 @@
* Copyright (c) 2014 Hisilicon Limited.
*/
-#include <linux/of_address.h>
#include <dt-bindings/clock/hix5hd2-clock.h>
+
#include <linux/slab.h>
#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+
#include "clk.h"
-static struct hisi_fixed_rate_clock hix5hd2_fixed_rate_clks[] __initdata = {
+static struct hisi_fixed_rate_clock hix5hd2_fixed_rate_clks[] = {
{ HIX5HD2_FIXED_1200M, "1200m", NULL, 0, 1200000000, },
{ HIX5HD2_FIXED_400M, "400m", NULL, 0, 400000000, },
{ HIX5HD2_FIXED_48M, "48m", NULL, 0, 48000000, },
@@ -43,19 +47,19 @@ static struct hisi_fixed_rate_clock hix5hd2_fixed_rate_clks[] __initdata = {
{ HIX5HD2_FIXED_83M, "83m", NULL, 0, 83333333, },
};
-static const char *const sfc_mux_p[] __initconst = {
+static const char *const sfc_mux_p[] = {
"24m", "150m", "200m", "100m", "75m", };
static u32 sfc_mux_table[] = {0, 4, 5, 6, 7};
-static const char *const sdio_mux_p[] __initconst = {
+static const char *const sdio_mux_p[] = {
"75m", "100m", "50m", "15m", };
static u32 sdio_mux_table[] = {0, 1, 2, 3};
-static const char *const fephy_mux_p[] __initconst = { "25m", "125m"};
+static const char *const fephy_mux_p[] = { "25m", "125m"};
static u32 fephy_mux_table[] = {0, 1};
-static struct hisi_mux_clock hix5hd2_mux_clks[] __initdata = {
+static struct hisi_mux_clock hix5hd2_mux_clks[] = {
{ HIX5HD2_SFC_MUX, "sfc_mux", sfc_mux_p, ARRAY_SIZE(sfc_mux_p),
CLK_SET_RATE_PARENT, 0x5c, 8, 3, 0, sfc_mux_table, },
{ HIX5HD2_MMC_MUX, "mmc_mux", sdio_mux_p, ARRAY_SIZE(sdio_mux_p),
@@ -67,7 +71,7 @@ static struct hisi_mux_clock hix5hd2_mux_clks[] __initdata = {
CLK_SET_RATE_PARENT, 0x120, 8, 2, 0, fephy_mux_table, },
};
-static struct hisi_gate_clock hix5hd2_gate_clks[] __initdata = {
+static struct hisi_gate_clock hix5hd2_gate_clks[] = {
/* sfc */
{ HIX5HD2_SFC_CLK, "clk_sfc", "sfc_mux",
CLK_SET_RATE_PARENT, 0x5c, 0, 0, },
@@ -153,7 +157,7 @@ struct hix5hd2_clk_complex {
u32 phy_rst_mask;
};
-static struct hix5hd2_complex_clock hix5hd2_complex_clks[] __initdata = {
+static struct hix5hd2_complex_clock hix5hd2_complex_clks[] = {
{"clk_mac0", "clk_fephy", HIX5HD2_MAC0_CLK,
0xcc, 0xa, 0x500, 0x120, 0, 0x10, TYPE_ETHER},
{"clk_mac1", "clk_fwd_sys", HIX5HD2_MAC1_CLK,
@@ -249,21 +253,22 @@ static const struct clk_ops clk_complex_ops = {
.disable = clk_complex_disable,
};
-static void __init
-hix5hd2_clk_register_complex(struct hix5hd2_complex_clock *clks, int nums,
+static int
+hix5hd2_clk_register_complex(struct device *dev, const void *clocks, size_t num,
struct hisi_clock_data *data)
{
+ const struct hix5hd2_complex_clock *clks = clocks;
void __iomem *base = data->base;
int i;
- for (i = 0; i < nums; i++) {
+ for (i = 0; i < num; i++) {
struct hix5hd2_clk_complex *p_clk;
struct clk *clk;
struct clk_init_data init;
p_clk = kzalloc(sizeof(*p_clk), GFP_KERNEL);
if (!p_clk)
- return;
+ return -ENOMEM;
init.name = clks[i].name;
if (clks[i].type == TYPE_ETHER)
@@ -289,31 +294,45 @@ hix5hd2_clk_register_complex(struct hix5hd2_complex_clock *clks, int nums,
kfree(p_clk);
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
- continue;
+ return PTR_ERR(p_clk);
}
data->clk_data.clks[clks[i].id] = clk;
}
-}
-static void __init hix5hd2_clk_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
-
- clk_data = hisi_clk_init(np, HIX5HD2_NR_CLKS);
- if (!clk_data)
- return;
-
- hisi_clk_register_fixed_rate(hix5hd2_fixed_rate_clks,
- ARRAY_SIZE(hix5hd2_fixed_rate_clks),
- clk_data);
- hisi_clk_register_mux(hix5hd2_mux_clks, ARRAY_SIZE(hix5hd2_mux_clks),
- clk_data);
- hisi_clk_register_gate(hix5hd2_gate_clks,
- ARRAY_SIZE(hix5hd2_gate_clks), clk_data);
- hix5hd2_clk_register_complex(hix5hd2_complex_clks,
- ARRAY_SIZE(hix5hd2_complex_clks),
- clk_data);
+ return 0;
}
-CLK_OF_DECLARE(hix5hd2_clk, "hisilicon,hix5hd2-clock", hix5hd2_clk_init);
+static const struct hisi_clocks hix5hd2_clks = {
+ .nr = HIX5HD2_NR_CLKS,
+ .fixed_rate_clks = hix5hd2_fixed_rate_clks,
+ .fixed_factor_clks_num = ARRAY_SIZE(hix5hd2_fixed_rate_clks),
+ .mux_clks = hix5hd2_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hix5hd2_mux_clks),
+ .gate_clks = hix5hd2_gate_clks,
+ .gate_clks_num = ARRAY_SIZE(hix5hd2_gate_clks),
+ .customized_clks = hix5hd2_complex_clks,
+ .customized_clks_num = ARRAY_SIZE(hix5hd2_complex_clks),
+ .clk_register_customized = hix5hd2_clk_register_complex,
+};
+
+static const struct of_device_id hix5hd2_clk_match_table[] = {
+ { .compatible = "hisilicon,hix5hd2-clock",
+ .data = &hix5hd2_clks },
+ { }
+};
+MODULE_DEVICE_TABLE(of, hix5hd2_clk_match_table);
+
+static struct platform_driver hix5hd2_clk_driver = {
+ .probe = hisi_clk_probe,
+ .remove_new = hisi_clk_remove,
+ .driver = {
+ .name = "hix5hd2-clock",
+ .of_match_table = hix5hd2_clk_match_table,
+ },
+};
+
+module_platform_driver(hix5hd2_clk_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("HiSilicon Hix5hd2 Clock Driver");
--
2.43.0
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hi3620.c | 191 +++++++++++++++--------------
1 file changed, 96 insertions(+), 95 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c
index 5d0226530fdb..8832cdd6bd57 100644
--- a/drivers/clk/hisilicon/clk-hi3620.c
+++ b/drivers/clk/hisilicon/clk-hi3620.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/clk-provider.h>
#include <linux/io.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>
@@ -21,48 +22,48 @@
#include "clk.h"
/* clock parent list */
-static const char *const timer0_mux_p[] __initconst = { "osc32k", "timerclk01", };
-static const char *const timer1_mux_p[] __initconst = { "osc32k", "timerclk01", };
-static const char *const timer2_mux_p[] __initconst = { "osc32k", "timerclk23", };
-static const char *const timer3_mux_p[] __initconst = { "osc32k", "timerclk23", };
-static const char *const timer4_mux_p[] __initconst = { "osc32k", "timerclk45", };
-static const char *const timer5_mux_p[] __initconst = { "osc32k", "timerclk45", };
-static const char *const timer6_mux_p[] __initconst = { "osc32k", "timerclk67", };
-static const char *const timer7_mux_p[] __initconst = { "osc32k", "timerclk67", };
-static const char *const timer8_mux_p[] __initconst = { "osc32k", "timerclk89", };
-static const char *const timer9_mux_p[] __initconst = { "osc32k", "timerclk89", };
-static const char *const uart0_mux_p[] __initconst = { "osc26m", "pclk", };
-static const char *const uart1_mux_p[] __initconst = { "osc26m", "pclk", };
-static const char *const uart2_mux_p[] __initconst = { "osc26m", "pclk", };
-static const char *const uart3_mux_p[] __initconst = { "osc26m", "pclk", };
-static const char *const uart4_mux_p[] __initconst = { "osc26m", "pclk", };
-static const char *const spi0_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
-static const char *const spi1_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
-static const char *const spi2_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
+static const char *const timer0_mux_p[] = { "osc32k", "timerclk01", };
+static const char *const timer1_mux_p[] = { "osc32k", "timerclk01", };
+static const char *const timer2_mux_p[] = { "osc32k", "timerclk23", };
+static const char *const timer3_mux_p[] = { "osc32k", "timerclk23", };
+static const char *const timer4_mux_p[] = { "osc32k", "timerclk45", };
+static const char *const timer5_mux_p[] = { "osc32k", "timerclk45", };
+static const char *const timer6_mux_p[] = { "osc32k", "timerclk67", };
+static const char *const timer7_mux_p[] = { "osc32k", "timerclk67", };
+static const char *const timer8_mux_p[] = { "osc32k", "timerclk89", };
+static const char *const timer9_mux_p[] = { "osc32k", "timerclk89", };
+static const char *const uart0_mux_p[] = { "osc26m", "pclk", };
+static const char *const uart1_mux_p[] = { "osc26m", "pclk", };
+static const char *const uart2_mux_p[] = { "osc26m", "pclk", };
+static const char *const uart3_mux_p[] = { "osc26m", "pclk", };
+static const char *const uart4_mux_p[] = { "osc26m", "pclk", };
+static const char *const spi0_mux_p[] = { "osc26m", "rclk_cfgaxi", };
+static const char *const spi1_mux_p[] = { "osc26m", "rclk_cfgaxi", };
+static const char *const spi2_mux_p[] = { "osc26m", "rclk_cfgaxi", };
/* share axi parent */
-static const char *const saxi_mux_p[] __initconst = { "armpll3", "armpll2", };
-static const char *const pwm0_mux_p[] __initconst = { "osc32k", "osc26m", };
-static const char *const pwm1_mux_p[] __initconst = { "osc32k", "osc26m", };
-static const char *const sd_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const mmc1_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const mmc1_mux2_p[] __initconst = { "osc26m", "mmc1_div", };
-static const char *const g2d_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const venc_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const vdec_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const vpp_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const edc0_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const ldi0_mux_p[] __initconst = { "armpll2", "armpll4",
+static const char *const saxi_mux_p[] = { "armpll3", "armpll2", };
+static const char *const pwm0_mux_p[] = { "osc32k", "osc26m", };
+static const char *const pwm1_mux_p[] = { "osc32k", "osc26m", };
+static const char *const sd_mux_p[] = { "armpll2", "armpll3", };
+static const char *const mmc1_mux_p[] = { "armpll2", "armpll3", };
+static const char *const mmc1_mux2_p[] = { "osc26m", "mmc1_div", };
+static const char *const g2d_mux_p[] = { "armpll2", "armpll3", };
+static const char *const venc_mux_p[] = { "armpll2", "armpll3", };
+static const char *const vdec_mux_p[] = { "armpll2", "armpll3", };
+static const char *const vpp_mux_p[] = { "armpll2", "armpll3", };
+static const char *const edc0_mux_p[] = { "armpll2", "armpll3", };
+static const char *const ldi0_mux_p[] = { "armpll2", "armpll4",
"armpll3", "armpll5", };
-static const char *const edc1_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const ldi1_mux_p[] __initconst = { "armpll2", "armpll4",
+static const char *const edc1_mux_p[] = { "armpll2", "armpll3", };
+static const char *const ldi1_mux_p[] = { "armpll2", "armpll4",
"armpll3", "armpll5", };
-static const char *const rclk_hsic_p[] __initconst = { "armpll3", "armpll2", };
-static const char *const mmc2_mux_p[] __initconst = { "armpll2", "armpll3", };
-static const char *const mmc3_mux_p[] __initconst = { "armpll2", "armpll3", };
+static const char *const rclk_hsic_p[] = { "armpll3", "armpll2", };
+static const char *const mmc2_mux_p[] = { "armpll2", "armpll3", };
+static const char *const mmc3_mux_p[] = { "armpll2", "armpll3", };
/* fixed rate clocks */
-static struct hisi_fixed_rate_clock hi3620_fixed_rate_clks[] __initdata = {
+static struct hisi_fixed_rate_clock hi3620_fixed_rate_clks[] = {
{ HI3620_OSC32K, "osc32k", NULL, 0, 32768, },
{ HI3620_OSC26M, "osc26m", NULL, 0, 26000000, },
{ HI3620_PCLK, "pclk", NULL, 0, 26000000, },
@@ -75,13 +76,13 @@ static struct hisi_fixed_rate_clock hi3620_fixed_rate_clks[] __initdata = {
};
/* fixed factor clocks */
-static struct hisi_fixed_factor_clock hi3620_fixed_factor_clks[] __initdata = {
+static struct hisi_fixed_factor_clock hi3620_fixed_factor_clks[] = {
{ HI3620_RCLK_TCXO, "rclk_tcxo", "osc26m", 1, 4, 0, },
{ HI3620_RCLK_CFGAXI, "rclk_cfgaxi", "armpll2", 1, 30, 0, },
{ HI3620_RCLK_PICO, "rclk_pico", "hsic_div", 1, 40, 0, },
};
-static struct hisi_mux_clock hi3620_mux_clks[] __initdata = {
+static struct hisi_mux_clock hi3620_mux_clks[] = {
{ HI3620_TIMER0_MUX, "timer0_mux", timer0_mux_p, ARRAY_SIZE(timer0_mux_p), CLK_SET_RATE_PARENT, 0, 15, 2, 0, },
{ HI3620_TIMER1_MUX, "timer1_mux", timer1_mux_p, ARRAY_SIZE(timer1_mux_p), CLK_SET_RATE_PARENT, 0, 17, 2, 0, },
{ HI3620_TIMER2_MUX, "timer2_mux", timer2_mux_p, ARRAY_SIZE(timer2_mux_p), CLK_SET_RATE_PARENT, 0, 19, 2, 0, },
@@ -119,7 +120,7 @@ static struct hisi_mux_clock hi3620_mux_clks[] __initdata = {
{ HI3620_MMC3_MUX, "mmc3_mux", mmc3_mux_p, ARRAY_SIZE(mmc3_mux_p), CLK_SET_RATE_PARENT, 0x140, 9, 1, CLK_MUX_HIWORD_MASK, },
};
-static struct hisi_divider_clock hi3620_div_clks[] __initdata = {
+static struct hisi_divider_clock hi3620_div_clks[] = {
{ HI3620_SHAREAXI_DIV, "saxi_div", "saxi_mux", 0, 0x100, 0, 5, CLK_DIVIDER_HIWORD_MASK, NULL, },
{ HI3620_CFGAXI_DIV, "cfgaxi_div", "saxi_div", 0, 0x100, 5, 2, CLK_DIVIDER_HIWORD_MASK, NULL, },
{ HI3620_SD_DIV, "sd_div", "sd_mux", 0, 0x108, 0, 4, CLK_DIVIDER_HIWORD_MASK, NULL, },
@@ -129,7 +130,7 @@ static struct hisi_divider_clock hi3620_div_clks[] __initdata = {
{ HI3620_MMC3_DIV, "mmc3_div", "mmc3_mux", 0, 0x140, 5, 4, CLK_DIVIDER_HIWORD_MASK, NULL, },
};
-static struct hisi_gate_clock hi3620_separated_gate_clks[] __initdata = {
+static struct hisi_gate_clock hi3620_separated_gate_clks[] = {
{ HI3620_TIMERCLK01, "timerclk01", "timer_rclk01", CLK_SET_RATE_PARENT, 0x20, 0, 0, },
{ HI3620_TIMER_RCLK01, "timer_rclk01", "rclk_tcxo", CLK_SET_RATE_PARENT, 0x20, 1, 0, },
{ HI3620_TIMERCLK23, "timerclk23", "timer_rclk23", CLK_SET_RATE_PARENT, 0x20, 2, 0, },
@@ -191,29 +192,19 @@ static struct hisi_gate_clock hi3620_separated_gate_clks[] __initdata = {
{ HI3620_MCU_CLK, "mcu_clk", "acp_clk", CLK_SET_RATE_PARENT, 0x50, 24, 0, },
};
-static void __init hi3620_clk_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
-
- clk_data = hisi_clk_init(np, HI3620_NR_CLKS);
- if (!clk_data)
- return;
-
- hisi_clk_register_fixed_rate(hi3620_fixed_rate_clks,
- ARRAY_SIZE(hi3620_fixed_rate_clks),
- clk_data);
- hisi_clk_register_fixed_factor(hi3620_fixed_factor_clks,
- ARRAY_SIZE(hi3620_fixed_factor_clks),
- clk_data);
- hisi_clk_register_mux(hi3620_mux_clks, ARRAY_SIZE(hi3620_mux_clks),
- clk_data);
- hisi_clk_register_divider(hi3620_div_clks, ARRAY_SIZE(hi3620_div_clks),
- clk_data);
- hisi_clk_register_gate_sep(hi3620_separated_gate_clks,
- ARRAY_SIZE(hi3620_separated_gate_clks),
- clk_data);
-}
-CLK_OF_DECLARE(hi3620_clk, "hisilicon,hi3620-clock", hi3620_clk_init);
+static const struct hisi_clocks hi3620_clks = {
+ .nr = HI3620_NR_CLKS,
+ .fixed_rate_clks = hi3620_fixed_rate_clks,
+ .fixed_rate_clks_num = ARRAY_SIZE(hi3620_fixed_rate_clks),
+ .fixed_factor_clks = hi3620_fixed_factor_clks,
+ .fixed_factor_clks_num = ARRAY_SIZE(hi3620_fixed_factor_clks),
+ .mux_clks = hi3620_mux_clks,
+ .mux_clks_num = ARRAY_SIZE(hi3620_mux_clks),
+ .divider_clks = hi3620_div_clks,
+ .divider_clks_num = ARRAY_SIZE(hi3620_div_clks),
+ .gate_sep_clks = hi3620_separated_gate_clks,
+ .gate_sep_clks_num = ARRAY_SIZE(hi3620_separated_gate_clks),
+};
struct hisi_mmc_clock {
unsigned int id;
@@ -251,7 +242,7 @@ struct clk_mmc {
#define to_mmc(_hw) container_of(_hw, struct clk_mmc, hw)
-static struct hisi_mmc_clock hi3620_mmc_clks[] __initdata = {
+static struct hisi_mmc_clock hi3620_mmc_clks[] = {
{ HI3620_SD_CIUCLK, "sd_bclk1", "sd_clk", CLK_SET_RATE_PARENT, 0x1f8, 0, 0x1f8, 1, 3, 0x1f8, 4, 4, 0x1f8, 8, 4},
{ HI3620_MMC_CIUCLK1, "mmc_bclk1", "mmc_clk1", CLK_SET_RATE_PARENT, 0x1f8, 12, 0x1f8, 13, 3, 0x1f8, 16, 4, 0x1f8, 20, 4},
{ HI3620_MMC_CIUCLK2, "mmc_bclk2", "mmc_clk2", CLK_SET_RATE_PARENT, 0x1f8, 24, 0x1f8, 25, 3, 0x1f8, 28, 4, 0x1fc, 0, 4},
@@ -407,8 +398,9 @@ static const struct clk_ops clk_mmc_ops = {
.recalc_rate = mmc_clk_recalc_rate,
};
-static struct clk *hisi_register_clk_mmc(struct hisi_mmc_clock *mmc_clk,
- void __iomem *base, struct device_node *np)
+static struct clk *
+clk_register_hisi_mmc(struct device *dev, const struct hisi_mmc_clock *mmc_clk,
+ void __iomem *base)
{
struct clk_mmc *mclk;
struct clk *clk;
@@ -444,41 +436,50 @@ static struct clk *hisi_register_clk_mmc(struct hisi_mmc_clock *mmc_clk,
return clk;
}
-static void __init hi3620_mmc_clk_init(struct device_node *node)
+static int hisi_register_clk_mmc(struct device *dev, const void *clocks,
+ size_t num, struct hisi_clock_data *data)
{
- void __iomem *base;
- int i, num = ARRAY_SIZE(hi3620_mmc_clks);
- struct clk_onecell_data *clk_data;
+ const struct hisi_mmc_clock *clks = clocks;
- if (!node) {
- pr_err("failed to find pctrl node in DTS\n");
- return;
- }
+ for (int i = 0; i < num; i++) {
+ struct clk *clk = clk_register_hisi_mmc(dev, &clks[i], data->base);
- base = of_iomap(node, 0);
- if (!base) {
- pr_err("failed to map pctrl\n");
- return;
+ if (IS_ERR(clk)) {
+ pr_err("%s: failed to register clock %s\n",
+ __func__, clks[i].name);
+ return PTR_ERR(clk);
+ }
+ data->clk_data.clks[clks[i].id] = clk;
}
- clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
- if (WARN_ON(!clk_data))
- return;
+ return 0;
+}
- clk_data->clks = kcalloc(num, sizeof(*clk_data->clks), GFP_KERNEL);
- if (!clk_data->clks) {
- kfree(clk_data);
- return;
- }
+static const struct hisi_clocks hi3620_clks_mmc = {
+ .customized_clks = hi3620_mmc_clks,
+ .customized_clks_num = ARRAY_SIZE(hi3620_mmc_clks),
+ .clk_register_customized = hisi_register_clk_mmc,
+};
- for (i = 0; i < num; i++) {
- struct hisi_mmc_clock *mmc_clk = &hi3620_mmc_clks[i];
- clk_data->clks[mmc_clk->id] =
- hisi_register_clk_mmc(mmc_clk, base, node);
- }
+static const struct of_device_id hi3620_clk_match_table[] = {
+ { .compatible = "hisilicon,hi3620-clock",
+ .data = &hi3620_clks },
+ { .compatible = "hisilicon,hi3620-mmc-clock",
+ .data = &hi3620_clks_mmc },
+ { }
+};
+MODULE_DEVICE_TABLE(of, hi3620_clk_match_table);
+
+static struct platform_driver hi3620_clk_driver = {
+ .probe = hisi_clk_probe,
+ .remove_new = hisi_clk_remove,
+ .driver = {
+ .name = "hi3620-clock",
+ .of_match_table = hi3620_clk_match_table,
+ },
+};
- clk_data->clk_num = num;
- of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
-}
+module_platform_driver(hi3620_clk_driver);
-CLK_OF_DECLARE(hi3620_mmc_clk, "hisilicon,hi3620-mmc-clock", hi3620_mmc_clk_init);
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("HiSilicon Hi3620 Clock Driver");
--
2.43.0
Migrates devm APIs for HiSilicon clock drivers.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hi3559a.c | 29 +-
drivers/clk/hisilicon/clk-hi3620.c | 30 +-
drivers/clk/hisilicon/clk-hi6220-stub.c | 9 +-
drivers/clk/hisilicon/clk-hi6220.c | 4 +-
drivers/clk/hisilicon/clk-hisi-phase.c | 13 +-
drivers/clk/hisilicon/clk-hix5hd2.c | 15 +-
drivers/clk/hisilicon/clk.c | 430 +++++++---------------
drivers/clk/hisilicon/clk.h | 99 +++--
drivers/clk/hisilicon/clkdivider-hi6220.c | 24 +-
drivers/clk/hisilicon/clkgate-separated.c | 26 +-
10 files changed, 267 insertions(+), 412 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hi3559a.c b/drivers/clk/hisilicon/clk-hi3559a.c
index 5d3b36c90886..15fe4c7ec0d2 100644
--- a/drivers/clk/hisilicon/clk-hi3559a.c
+++ b/drivers/clk/hisilicon/clk-hi3559a.c
@@ -457,17 +457,16 @@ hisi_clk_register_pll(struct device *dev, const void *clocks,
{
const struct hi3559av100_pll_clock *clks = clocks;
void __iomem *base = data->base;
- struct hi3559av100_clk_pll *p_clk = NULL;
- struct clk *clk = NULL;
+ struct hi3559av100_clk_pll *p_clk;
struct clk_init_data init;
int i;
-
- p_clk = devm_kzalloc(dev, sizeof(*p_clk) * num, GFP_KERNEL);
-
- if (!p_clk)
- return -ENOMEM;
+ int ret;
for (i = 0; i < num; i++) {
+ p_clk = devm_kzalloc(dev, sizeof(*p_clk), GFP_KERNEL);
+ if (!p_clk)
+ return -ENOMEM;
+
init.name = clks[i].name;
init.flags = 0;
init.parent_names =
@@ -490,16 +489,14 @@ hisi_clk_register_pll(struct device *dev, const void *clocks,
p_clk->refdiv_width = clks[i].refdiv_width;
p_clk->hw.init = &init;
- clk = clk_register(NULL, &p_clk->hw);
- if (IS_ERR(clk)) {
- devm_kfree(dev, p_clk);
+ ret = devm_clk_hw_register(dev, &p_clk->hw);
+ if (ret) {
dev_err(dev, "%s: failed to register clock %s\n",
- __func__, clks[i].name);
- return PTR_ERR(clk);
+ __func__, clks[i].name);
+ return ret;
}
- data->clk_data.clks[clks[i].id] = clk;
- p_clk++;
+ data->clk_data->hws[clks[i].id] = &p_clk->hw;
}
return 0;
@@ -628,7 +625,7 @@ static int hi3559av100_shub_default_clk_set(struct device *dev, struct hisi_cloc
void __iomem *crg_base;
unsigned int val;
- crg_base = ioremap(CRG_BASE_ADDR, SZ_4K);
+ crg_base = devm_ioremap(dev, CRG_BASE_ADDR, SZ_4K);
/* SSP: 192M/2 */
val = readl_relaxed(crg_base + 0x20);
@@ -640,7 +637,7 @@ static int hi3559av100_shub_default_clk_set(struct device *dev, struct hisi_cloc
val |= (0x1 << 28);
writel_relaxed(val, crg_base + 0x1C);
- iounmap(crg_base);
+ devm_iounmap(dev, crg_base);
crg_base = NULL;
return 0;
diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c
index 8832cdd6bd57..6b381f07d4c7 100644
--- a/drivers/clk/hisilicon/clk-hi3620.c
+++ b/drivers/clk/hisilicon/clk-hi3620.c
@@ -11,11 +11,10 @@
#include <linux/kernel.h>
#include <linux/clk-provider.h>
+#include <linux/device.h>
#include <linux/io.h>
#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/slab.h>
+#include <linux/mod_devicetable.h>
#include <dt-bindings/clock/hi3620-clock.h>
@@ -398,15 +397,15 @@ static const struct clk_ops clk_mmc_ops = {
.recalc_rate = mmc_clk_recalc_rate,
};
-static struct clk *
+static struct clk_hw *
clk_register_hisi_mmc(struct device *dev, const struct hisi_mmc_clock *mmc_clk,
void __iomem *base)
{
struct clk_mmc *mclk;
- struct clk *clk;
struct clk_init_data init;
+ int ret;
- mclk = kzalloc(sizeof(*mclk), GFP_KERNEL);
+ mclk = devm_kzalloc(dev, sizeof(*mclk), GFP_KERNEL);
if (!mclk)
return ERR_PTR(-ENOMEM);
@@ -430,26 +429,31 @@ clk_register_hisi_mmc(struct device *dev, const struct hisi_mmc_clock *mmc_clk,
mclk->sam_off = mmc_clk->sam_off;
mclk->sam_bits = mmc_clk->sam_bits;
- clk = clk_register(NULL, &mclk->hw);
- if (WARN_ON(IS_ERR(clk)))
- kfree(mclk);
- return clk;
+ ret = devm_clk_hw_register(dev, &mclk->hw);
+ if (ret) {
+ dev_err(dev, "%s: failed to register clock %s\n",
+ __func__, init.name);
+ return ERR_PTR(ret);
+ }
+
+ return &mclk->hw;
}
static int hisi_register_clk_mmc(struct device *dev, const void *clocks,
size_t num, struct hisi_clock_data *data)
{
const struct hisi_mmc_clock *clks = clocks;
+ int i;
- for (int i = 0; i < num; i++) {
- struct clk *clk = clk_register_hisi_mmc(dev, &clks[i], data->base);
+ for (i = 0; i < num; i++) {
+ struct clk_hw *clk = clk_register_hisi_mmc(dev, &clks[i], data->base);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
return PTR_ERR(clk);
}
- data->clk_data.clks[clks[i].id] = clk;
+ data->clk_data->hws[clks[i].id] = clk;
}
return 0;
diff --git a/drivers/clk/hisilicon/clk-hi6220-stub.c b/drivers/clk/hisilicon/clk-hi6220-stub.c
index a8319795ed1c..f194c2394638 100644
--- a/drivers/clk/hisilicon/clk-hi6220-stub.c
+++ b/drivers/clk/hisilicon/clk-hi6220-stub.c
@@ -195,7 +195,6 @@ static int hi6220_stub_clk_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct clk_init_data init;
struct hi6220_stub_clk *stub_clk;
- struct clk *clk;
struct device_node *np = pdev->dev.of_node;
int ret;
@@ -233,11 +232,11 @@ static int hi6220_stub_clk_probe(struct platform_device *pdev)
init.num_parents = 0;
init.flags = 0;
- clk = devm_clk_register(dev, &stub_clk->hw);
- if (IS_ERR(clk))
- return PTR_ERR(clk);
+ ret = devm_clk_hw_register(dev, &stub_clk->hw);
+ if (ret)
+ return ret;
- ret = of_clk_add_provider(np, of_clk_src_simple_get, clk);
+ ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get, &stub_clk->hw);
if (ret) {
dev_err(dev, "failed to register OF clock provider\n");
return ret;
diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c
index 1b40d0d90229..bf8345ce7a8c 100644
--- a/drivers/clk/hisilicon/clk-hi6220.c
+++ b/drivers/clk/hisilicon/clk-hi6220.c
@@ -20,9 +20,7 @@ static int
hi6220_clk_register_divider_stub(struct device *dev, const void *clks,
size_t num, struct hisi_clock_data *data)
{
- /* INCOMPLETE PATCH */
- hi6220_clk_register_divider(clks, num, data);
- return 0;
+ return hi6220_clk_register_divider(dev, clks, num, data);
}
/* clocks in AO (always on) controller */
diff --git a/drivers/clk/hisilicon/clk-hisi-phase.c b/drivers/clk/hisilicon/clk-hisi-phase.c
index ba6afad66a2b..15a23dd6edb1 100644
--- a/drivers/clk/hisilicon/clk-hisi-phase.c
+++ b/drivers/clk/hisilicon/clk-hisi-phase.c
@@ -5,11 +5,11 @@
* Simple HiSilicon phase clock implementation.
*/
+#include <linux/device.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/slab.h>
#include "clk.h"
@@ -90,12 +90,13 @@ static const struct clk_ops clk_phase_ops = {
.set_phase = hisi_clk_set_phase,
};
-struct clk *clk_register_hisi_phase(struct device *dev,
+struct clk_hw *devm_clk_hw_register_hisi_phase(struct device *dev,
const struct hisi_phase_clock *clks,
void __iomem *base, spinlock_t *lock)
{
struct clk_hisi_phase *phase;
struct clk_init_data init;
+ int ret;
phase = devm_kzalloc(dev, sizeof(struct clk_hisi_phase), GFP_KERNEL);
if (!phase)
@@ -116,6 +117,10 @@ struct clk *clk_register_hisi_phase(struct device *dev,
phase->phase_num = clks->phase_num;
phase->hw.init = &init;
- return devm_clk_register(dev, &phase->hw);
+ ret = devm_clk_hw_register(dev, &phase->hw);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return &phase->hw;
}
-EXPORT_SYMBOL_GPL(clk_register_hisi_phase);
+EXPORT_SYMBOL_GPL(devm_clk_hw_register_hisi_phase);
diff --git a/drivers/clk/hisilicon/clk-hix5hd2.c b/drivers/clk/hisilicon/clk-hix5hd2.c
index 0a3f1320d0d5..66d4c232b28b 100644
--- a/drivers/clk/hisilicon/clk-hix5hd2.c
+++ b/drivers/clk/hisilicon/clk-hix5hd2.c
@@ -6,7 +6,7 @@
#include <dt-bindings/clock/hix5hd2-clock.h>
-#include <linux/slab.h>
+#include <linux/device.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -260,13 +260,13 @@ hix5hd2_clk_register_complex(struct device *dev, const void *clocks, size_t num,
const struct hix5hd2_complex_clock *clks = clocks;
void __iomem *base = data->base;
int i;
+ int ret;
for (i = 0; i < num; i++) {
struct hix5hd2_clk_complex *p_clk;
- struct clk *clk;
struct clk_init_data init;
- p_clk = kzalloc(sizeof(*p_clk), GFP_KERNEL);
+ p_clk = devm_kzalloc(dev, sizeof(*p_clk), GFP_KERNEL);
if (!p_clk)
return -ENOMEM;
@@ -289,15 +289,14 @@ hix5hd2_clk_register_complex(struct device *dev, const void *clocks, size_t num,
p_clk->phy_rst_mask = clks[i].phy_rst_mask;
p_clk->hw.init = &init;
- clk = clk_register(NULL, &p_clk->hw);
- if (IS_ERR(clk)) {
- kfree(p_clk);
+ ret = devm_clk_hw_register(dev, &p_clk->hw);
+ if (ret) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
- return PTR_ERR(p_clk);
+ return ret;
}
- data->clk_data.clks[clks[i].id] = clk;
+ data->clk_data->hws[clks[i].id] = &p_clk->hw;
}
return 0;
diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
index e50115f8e236..53966db0781b 100644
--- a/drivers/clk/hisilicon/clk.c
+++ b/drivers/clk/hisilicon/clk.c
@@ -4,6 +4,7 @@
*
* Copyright (c) 2012-2013 Hisilicon Limited.
* Copyright (c) 2012-2013 Linaro Limited.
+ * Copyright (c) 2023 David Yang
*
* Author: Haojian Zhuang <[email protected]>
* Xin Li <[email protected]>
@@ -13,6 +14,8 @@
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/errno.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
@@ -23,343 +26,214 @@
static DEFINE_SPINLOCK(hisi_clk_lock);
-struct hisi_clock_data *hisi_clk_alloc(struct platform_device *pdev,
- int nr_clks)
+struct hisi_clock_data *hisi_clk_init(struct device_node *np, size_t nr)
{
- struct hisi_clock_data *clk_data;
- struct resource *res;
- struct clk **clk_table;
-
- clk_data = devm_kmalloc(&pdev->dev, sizeof(*clk_data), GFP_KERNEL);
- if (!clk_data)
- return NULL;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return NULL;
- clk_data->base = devm_ioremap(&pdev->dev,
- res->start, resource_size(res));
- if (!clk_data->base)
- return NULL;
-
- clk_table = devm_kmalloc_array(&pdev->dev, nr_clks,
- sizeof(*clk_table),
- GFP_KERNEL);
- if (!clk_table)
- return NULL;
-
- clk_data->clk_data.clks = clk_table;
- clk_data->clk_data.clk_num = nr_clks;
-
- return clk_data;
-}
-EXPORT_SYMBOL_GPL(hisi_clk_alloc);
-
-struct hisi_clock_data *hisi_clk_init(struct device_node *np,
- int nr_clks)
-{
- struct hisi_clock_data *clk_data;
- struct clk **clk_table;
void __iomem *base;
+ struct hisi_clock_data *data;
+ int ret;
+ int i;
base = of_iomap(np, 0);
if (!base) {
pr_err("%s: failed to map clock registers\n", __func__);
- goto err;
+ return NULL;
}
- clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL);
- if (!clk_data)
- goto err;
+ data = kmalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return NULL;
- clk_data->base = base;
- clk_table = kcalloc(nr_clks, sizeof(*clk_table), GFP_KERNEL);
- if (!clk_table)
+ data->clk_data = kzalloc(sizeof(*data->clk_data) + nr * sizeof(data->clk_data->hws[0]),
+ GFP_KERNEL);
+ if (!data->clk_data)
goto err_data;
- clk_data->clk_data.clks = clk_table;
- clk_data->clk_data.clk_num = nr_clks;
- of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data->clk_data);
- return clk_data;
+ ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, data->clk_data);
+ if (ret)
+ goto err_clk;
+
+ data->base = base;
+ data->clks = NULL;
+ data->clk_data->num = nr;
+ for (i = 0; i < nr; i++)
+ data->clk_data->hws[i] = ERR_PTR(-EPROBE_DEFER);
+
+ return data;
+
+err_clk:
+ kfree(data->clk_data);
err_data:
- kfree(clk_data);
-err:
+ kfree(data);
return NULL;
}
EXPORT_SYMBOL_GPL(hisi_clk_init);
+#define hisi_clk_unregister_fn(type) \
+static void hisi_clk_unregister_##type(struct hisi_clock_data *data) \
+{ \
+ for (int i = 0; i < data->clks->type##_clks_num; i++) { \
+ struct clk_hw *clk = data->clk_data->hws[data->clks->type##_clks[i].id]; \
+\
+ if (clk && !IS_ERR(clk)) \
+ clk_hw_unregister_##type(clk); \
+ } \
+}
+
+hisi_clk_unregister_fn(fixed_rate)
+hisi_clk_unregister_fn(fixed_factor)
+
void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data)
{
if (data->clks) {
if (data->clks->fixed_rate_clks_num)
- hisi_clk_unregister_fixed_rate(data->clks->fixed_rate_clks,
- data->clks->fixed_rate_clks_num,
- data);
+ hisi_clk_unregister_fixed_rate(data);
if (data->clks->fixed_factor_clks_num)
- hisi_clk_unregister_fixed_factor(data->clks->fixed_factor_clks,
- data->clks->fixed_factor_clks_num,
- data);
+ hisi_clk_unregister_fixed_factor(data);
}
of_clk_del_provider(np);
- kfree(data->clk_data.clks);
+ kfree(data->clk_data);
kfree(data);
}
EXPORT_SYMBOL_GPL(hisi_clk_free);
int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *clks,
- int nums, struct hisi_clock_data *data)
+ size_t num, struct hisi_clock_data *data)
{
- struct clk *clk;
+ struct clk_hw *clk;
int i;
- for (i = 0; i < nums; i++) {
- clk = clk_register_fixed_rate(NULL, clks[i].name,
- clks[i].parent_name,
- clks[i].flags,
- clks[i].fixed_rate);
+ for (i = 0; i < num; i++) {
+ const struct hisi_fixed_rate_clock *p_clk = &clks[i];
+
+ clk = clk_hw_register_fixed_rate(NULL, p_clk->name, p_clk->parent_name,
+ p_clk->flags, p_clk->fixed_rate);
+
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
- __func__, clks[i].name);
+ __func__, p_clk->name);
goto err;
}
- data->clk_data.clks[clks[i].id] = clk;
+
+ data->clk_data->hws[p_clk->id] = clk;
}
return 0;
err:
while (i--)
- clk_unregister_fixed_rate(data->clk_data.clks[clks[i].id]);
-
+ clk_hw_unregister_fixed_rate(data->clk_data->hws[clks[i].id]);
return PTR_ERR(clk);
}
EXPORT_SYMBOL_GPL(hisi_clk_register_fixed_rate);
int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *clks,
- int nums,
- struct hisi_clock_data *data)
+ size_t num, struct hisi_clock_data *data)
{
- struct clk *clk;
+ struct clk_hw *clk;
int i;
- for (i = 0; i < nums; i++) {
- clk = clk_register_fixed_factor(NULL, clks[i].name,
- clks[i].parent_name,
- clks[i].flags, clks[i].mult,
- clks[i].div);
- if (IS_ERR(clk)) {
- pr_err("%s: failed to register clock %s\n",
- __func__, clks[i].name);
- goto err;
- }
- data->clk_data.clks[clks[i].id] = clk;
- }
-
- return 0;
-
-err:
- while (i--)
- clk_unregister_fixed_factor(data->clk_data.clks[clks[i].id]);
-
- return PTR_ERR(clk);
-}
-EXPORT_SYMBOL_GPL(hisi_clk_register_fixed_factor);
+ for (i = 0; i < num; i++) {
+ const struct hisi_fixed_factor_clock *p_clk = &clks[i];
-int hisi_clk_register_mux(const struct hisi_mux_clock *clks,
- int nums, struct hisi_clock_data *data)
-{
- struct clk *clk;
- void __iomem *base = data->base;
- int i;
-
- for (i = 0; i < nums; i++) {
- u32 mask = BIT(clks[i].width) - 1;
+ clk = clk_hw_register_fixed_factor(NULL, p_clk->name, p_clk->parent_name,
+ p_clk->flags, p_clk->mult, p_clk->div);
- clk = clk_register_mux_table(NULL, clks[i].name,
- clks[i].parent_names,
- clks[i].num_parents, clks[i].flags,
- base + clks[i].offset, clks[i].shift,
- mask, clks[i].mux_flags,
- clks[i].table, &hisi_clk_lock);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
- __func__, clks[i].name);
+ __func__, p_clk->name);
goto err;
}
- if (clks[i].alias)
- clk_register_clkdev(clk, clks[i].alias, NULL);
-
- data->clk_data.clks[clks[i].id] = clk;
+ data->clk_data->hws[p_clk->id] = clk;
}
return 0;
err:
while (i--)
- clk_unregister_mux(data->clk_data.clks[clks[i].id]);
-
+ clk_hw_unregister_fixed_rate(data->clk_data->hws[clks[i].id]);
return PTR_ERR(clk);
}
-EXPORT_SYMBOL_GPL(hisi_clk_register_mux);
+EXPORT_SYMBOL_GPL(hisi_clk_register_fixed_factor);
+
+/*
+ * We ARE function creater. Commit message from checkpatch:
+ * Avoid warning on macros that use argument concatenation as
+ * those macros commonly create another function
+ */
+#define hisi_clk_register_fn(fn, type, stmt) \
+int fn(struct device *dev, const struct type *clks, \
+ size_t num, struct hisi_clock_data *data) \
+{ \
+ void __iomem *base = data->base; \
+\
+ for (int i = 0; i < num; i++) { \
+ const struct type *p_clk = &clks[i]; \
+ struct clk_hw *clk = stmt; \
+\
+ if (IS_ERR(clk)) { \
+ pr_err("%s: failed to register clock %s\n", \
+ __func__, p_clk->name); \
+ return PTR_ERR(clk); \
+ } \
+\
+ if (p_clk->alias) \
+ clk_hw_register_clkdev(clk, p_clk->alias, NULL); \
+\
+ data->clk_data->hws[p_clk->id] = clk; \
+ } \
+\
+ return 0; \
+} \
+EXPORT_SYMBOL_GPL(fn);
+
+hisi_clk_register_fn(hisi_clk_register_mux, hisi_mux_clock,
+ __devm_clk_hw_register_mux(dev, NULL, p_clk->name,
+ p_clk->num_parents, p_clk->parent_names, NULL, NULL,
+ p_clk->flags, base + p_clk->offset, p_clk->shift, BIT(p_clk->width) - 1,
+ p_clk->mux_flags, p_clk->table, &hisi_clk_lock))
int hisi_clk_register_phase(struct device *dev,
const struct hisi_phase_clock *clks,
- int nums, struct hisi_clock_data *data)
+ size_t num, struct hisi_clock_data *data)
{
void __iomem *base = data->base;
- struct clk *clk;
- int i;
- for (i = 0; i < nums; i++) {
- clk = clk_register_hisi_phase(dev, &clks[i], base,
- &hisi_clk_lock);
+ for (int i = 0; i < num; i++) {
+ const struct hisi_phase_clock *p_clk = &clks[i];
+ struct clk_hw *clk = devm_clk_hw_register_hisi_phase(dev,
+ p_clk, base, &hisi_clk_lock);
+
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n", __func__,
- clks[i].name);
+ p_clk->name);
return PTR_ERR(clk);
}
- data->clk_data.clks[clks[i].id] = clk;
+ data->clk_data->hws[p_clk->id] = clk;
}
return 0;
}
EXPORT_SYMBOL_GPL(hisi_clk_register_phase);
-int hisi_clk_register_divider(const struct hisi_divider_clock *clks,
- int nums, struct hisi_clock_data *data)
-{
- struct clk *clk;
- void __iomem *base = data->base;
- int i;
-
- for (i = 0; i < nums; i++) {
- clk = clk_register_divider_table(NULL, clks[i].name,
- clks[i].parent_name,
- clks[i].flags,
- base + clks[i].offset,
- clks[i].shift, clks[i].width,
- clks[i].div_flags,
- clks[i].table,
- &hisi_clk_lock);
- if (IS_ERR(clk)) {
- pr_err("%s: failed to register clock %s\n",
- __func__, clks[i].name);
- goto err;
- }
-
- if (clks[i].alias)
- clk_register_clkdev(clk, clks[i].alias, NULL);
-
- data->clk_data.clks[clks[i].id] = clk;
- }
-
- return 0;
-
-err:
- while (i--)
- clk_unregister_divider(data->clk_data.clks[clks[i].id]);
-
- return PTR_ERR(clk);
-}
-EXPORT_SYMBOL_GPL(hisi_clk_register_divider);
-
-int hisi_clk_register_gate(const struct hisi_gate_clock *clks,
- int nums, struct hisi_clock_data *data)
-{
- struct clk *clk;
- void __iomem *base = data->base;
- int i;
-
- for (i = 0; i < nums; i++) {
- clk = clk_register_gate(NULL, clks[i].name,
- clks[i].parent_name,
- clks[i].flags,
- base + clks[i].offset,
- clks[i].bit_idx,
- clks[i].gate_flags,
- &hisi_clk_lock);
- if (IS_ERR(clk)) {
- pr_err("%s: failed to register clock %s\n",
- __func__, clks[i].name);
- goto err;
- }
-
- if (clks[i].alias)
- clk_register_clkdev(clk, clks[i].alias, NULL);
-
- data->clk_data.clks[clks[i].id] = clk;
- }
-
- return 0;
-
-err:
- while (i--)
- clk_unregister_gate(data->clk_data.clks[clks[i].id]);
-
- return PTR_ERR(clk);
-}
-EXPORT_SYMBOL_GPL(hisi_clk_register_gate);
-
-void hisi_clk_register_gate_sep(const struct hisi_gate_clock *clks,
- int nums, struct hisi_clock_data *data)
-{
- struct clk *clk;
- void __iomem *base = data->base;
- int i;
-
- for (i = 0; i < nums; i++) {
- clk = hisi_register_clkgate_sep(NULL, clks[i].name,
- clks[i].parent_name,
- clks[i].flags,
- base + clks[i].offset,
- clks[i].bit_idx,
- clks[i].gate_flags,
- &hisi_clk_lock);
- if (IS_ERR(clk)) {
- pr_err("%s: failed to register clock %s\n",
- __func__, clks[i].name);
- continue;
- }
-
- if (clks[i].alias)
- clk_register_clkdev(clk, clks[i].alias, NULL);
-
- data->clk_data.clks[clks[i].id] = clk;
- }
-}
-EXPORT_SYMBOL_GPL(hisi_clk_register_gate_sep);
-
-void __init hi6220_clk_register_divider(const struct hi6220_divider_clock *clks,
- int nums, struct hisi_clock_data *data)
-{
- struct clk *clk;
- void __iomem *base = data->base;
- int i;
-
- for (i = 0; i < nums; i++) {
- clk = hi6220_register_clkdiv(NULL, clks[i].name,
- clks[i].parent_name,
- clks[i].flags,
- base + clks[i].offset,
- clks[i].shift,
- clks[i].width,
- clks[i].mask_bit,
- &hisi_clk_lock);
- if (IS_ERR(clk)) {
- pr_err("%s: failed to register clock %s\n",
- __func__, clks[i].name);
- continue;
- }
-
- if (clks[i].alias)
- clk_register_clkdev(clk, clks[i].alias, NULL);
-
- data->clk_data.clks[clks[i].id] = clk;
- }
-}
+hisi_clk_register_fn(hisi_clk_register_divider, hisi_divider_clock,
+ devm_clk_hw_register_divider_table(dev, p_clk->name, p_clk->parent_name,
+ p_clk->flags, base + p_clk->offset, p_clk->shift, p_clk->width,
+ p_clk->div_flags, p_clk->table, &hisi_clk_lock))
+hisi_clk_register_fn(hisi_clk_register_gate, hisi_gate_clock,
+ devm_clk_hw_register_gate(dev, p_clk->name, p_clk->parent_name,
+ p_clk->flags, base + p_clk->offset, p_clk->bit_idx,
+ p_clk->gate_flags, &hisi_clk_lock))
+hisi_clk_register_fn(hisi_clk_register_gate_sep, hisi_gate_clock,
+ devm_clk_hw_register_hisi_gate_sep(dev, p_clk->name, p_clk->parent_name,
+ p_clk->flags, base + p_clk->offset, p_clk->bit_idx,
+ p_clk->gate_flags, &hisi_clk_lock))
+hisi_clk_register_fn(hi6220_clk_register_divider, hi6220_divider_clock,
+ devm_clk_hw_register_hi6220_divider(dev, p_clk->name, p_clk->parent_name,
+ p_clk->flags, base + p_clk->offset, p_clk->shift, p_clk->width,
+ p_clk->mask_bit, &hisi_clk_lock))
static size_t hisi_clocks_get_nr(const struct hisi_clocks *clks)
{
@@ -406,38 +280,20 @@ static int hisi_clk_register(struct device *dev, const struct hisi_clocks *clks,
{
int ret;
- if (clks->mux_clks_num) {
- ret = hisi_clk_register_mux(clks->mux_clks,
- clks->mux_clks_num, data);
- if (ret)
- return ret;
- }
-
- if (clks->phase_clks_num) {
- ret = hisi_clk_register_phase(dev, clks->phase_clks,
- clks->phase_clks_num, data);
- if (ret)
- return ret;
- }
-
- if (clks->divider_clks_num) {
- ret = hisi_clk_register_divider(clks->divider_clks,
- clks->divider_clks_num, data);
- if (ret)
- return ret;
- }
-
- if (clks->gate_clks_num) {
- ret = hisi_clk_register_gate(clks->gate_clks,
- clks->gate_clks_num, data);
- if (ret)
- return ret;
- }
-
- if (clks->gate_sep_clks_num) {
- hisi_clk_register_gate_sep(clks->gate_sep_clks,
- clks->gate_sep_clks_num, data);
- }
+#define do_hisi_clk_register(type) do { \
+ if (clks->type##_clks_num) { \
+ ret = hisi_clk_register_##type(dev, clks->type##_clks, \
+ clks->type##_clks_num, data); \
+ if (ret) \
+ return ret; \
+ } \
+} while (0)
+
+ do_hisi_clk_register(mux);
+ do_hisi_clk_register(phase);
+ do_hisi_clk_register(divider);
+ do_hisi_clk_register(gate);
+ do_hisi_clk_register(gate_sep);
if (clks->clk_register_customized && clks->customized_clks_num) {
ret = clks->clk_register_customized(dev, clks->customized_clks,
diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h
index 87b17e9b79a3..5a72d7ab5587 100644
--- a/drivers/clk/hisilicon/clk.h
+++ b/drivers/clk/hisilicon/clk.h
@@ -4,6 +4,7 @@
*
* Copyright (c) 2012-2013 Hisilicon Limited.
* Copyright (c) 2012-2013 Linaro Limited.
+ * Copyright (c) 2023 David Yang
*
* Author: Haojian Zhuang <[email protected]>
* Xin Li <[email protected]>
@@ -19,8 +20,18 @@
struct platform_device;
struct hisi_clocks;
+/*
+ * (Virtual) fixed clocks, often depended by crucial peripherals, require
+ * early initialization before device probing, thus cannot use devm APIs.
+ * Otherwise, kernel will defer those peripherals, causing boot failure.
+ *
+ * fixed_rate and fixed_factor clocks are driver-managed. They are freed by
+ * `hisi_clk_free` altogether.
+ *
+ * Other clocks are devm-managed.
+ */
struct hisi_clock_data {
- struct clk_onecell_data clk_data;
+ struct clk_hw_onecell_data *clk_data;
void __iomem *base;
const struct hisi_clocks *clks;
};
@@ -138,57 +149,45 @@ struct hisi_clocks {
size_t num, struct hisi_clock_data *data);
};
-struct clk *hisi_register_clkgate_sep(struct device *, const char *,
- const char *, unsigned long,
- void __iomem *, u8,
- u8, spinlock_t *);
-struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
- const char *parent_name, unsigned long flags, void __iomem *reg,
- u8 shift, u8 width, u32 mask_bit, spinlock_t *lock);
-
-struct hisi_clock_data *hisi_clk_alloc(struct platform_device *, int);
-struct hisi_clock_data *hisi_clk_init(struct device_node *, int);
-void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data);
-int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *,
- int, struct hisi_clock_data *);
-int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *,
- int, struct hisi_clock_data *);
-int hisi_clk_register_mux(const struct hisi_mux_clock *, int,
- struct hisi_clock_data *);
-struct clk *clk_register_hisi_phase(struct device *dev,
- const struct hisi_phase_clock *clks,
+struct clk_hw *
+devm_clk_hw_register_hisi_phase(struct device *dev, const struct hisi_phase_clock *clks,
void __iomem *base, spinlock_t *lock);
+struct clk_hw *
+devm_clk_hw_register_hisi_gate_sep(struct device *dev, const char *name,
+ const char *parent_name, unsigned long flags,
+ void __iomem *reg, u8 bit_idx,
+ u8 clk_gate_flags, spinlock_t *lock);
+struct clk_hw *
+devm_clk_hw_register_hi6220_divider(struct device *dev, const char *name,
+ const char *parent_name, unsigned long flags,
+ void __iomem *reg, u8 shift,
+ u8 width, u32 mask_bit, spinlock_t *lock);
+
+struct hisi_clock_data *hisi_clk_init(struct device_node *np, size_t nr);
+void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data);
+
+int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *clks,
+ size_t num, struct hisi_clock_data *data);
+int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *clks,
+ size_t num, struct hisi_clock_data *data);
+
+int hisi_clk_register_mux(struct device *dev, const struct hisi_mux_clock *clks,
+ size_t num, struct hisi_clock_data *data);
int hisi_clk_register_phase(struct device *dev,
- const struct hisi_phase_clock *clks,
- int nums, struct hisi_clock_data *data);
-int hisi_clk_register_divider(const struct hisi_divider_clock *,
- int, struct hisi_clock_data *);
-int hisi_clk_register_gate(const struct hisi_gate_clock *,
- int, struct hisi_clock_data *);
-void hisi_clk_register_gate_sep(const struct hisi_gate_clock *,
- int, struct hisi_clock_data *);
-void hi6220_clk_register_divider(const struct hi6220_divider_clock *,
- int, struct hisi_clock_data *);
-
-#define hisi_clk_unregister(type) \
-static inline \
-void hisi_clk_unregister_##type(const struct hisi_##type##_clock *clks, \
- int nums, struct hisi_clock_data *data) \
-{ \
- struct clk **clocks = data->clk_data.clks; \
- int i; \
- for (i = 0; i < nums; i++) { \
- int id = clks[i].id; \
- if (clocks[id]) \
- clk_unregister_##type(clocks[id]); \
- } \
-}
-
-hisi_clk_unregister(fixed_rate)
-hisi_clk_unregister(fixed_factor)
-hisi_clk_unregister(mux)
-hisi_clk_unregister(divider)
-hisi_clk_unregister(gate)
+ const struct hisi_phase_clock *clks,
+ size_t num, struct hisi_clock_data *data);
+int hisi_clk_register_divider(struct device *dev,
+ const struct hisi_divider_clock *clks,
+ size_t num, struct hisi_clock_data *data);
+int hisi_clk_register_gate(struct device *dev,
+ const struct hisi_gate_clock *clks,
+ size_t num, struct hisi_clock_data *data);
+int hisi_clk_register_gate_sep(struct device *dev,
+ const struct hisi_gate_clock *clks,
+ size_t num, struct hisi_clock_data *data);
+int hi6220_clk_register_divider(struct device *dev,
+ const struct hi6220_divider_clock *clks,
+ size_t num, struct hisi_clock_data *data);
/* helper functions for platform driver */
diff --git a/drivers/clk/hisilicon/clkdivider-hi6220.c b/drivers/clk/hisilicon/clkdivider-hi6220.c
index 5348bafe694f..3c03b3e5b841 100644
--- a/drivers/clk/hisilicon/clkdivider-hi6220.c
+++ b/drivers/clk/hisilicon/clkdivider-hi6220.c
@@ -9,7 +9,7 @@
#include <linux/kernel.h>
#include <linux/clk-provider.h>
-#include <linux/slab.h>
+#include <linux/device.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/spinlock.h>
@@ -97,19 +97,19 @@ static const struct clk_ops hi6220_clkdiv_ops = {
.set_rate = hi6220_clkdiv_set_rate,
};
-struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
+struct clk_hw *devm_clk_hw_register_hi6220_divider(struct device *dev, const char *name,
const char *parent_name, unsigned long flags, void __iomem *reg,
u8 shift, u8 width, u32 mask_bit, spinlock_t *lock)
{
struct hi6220_clk_divider *div;
- struct clk *clk;
struct clk_init_data init;
struct clk_div_table *table;
u32 max_div, min_div;
int i;
+ int ret;
/* allocate the divider */
- div = kzalloc(sizeof(*div), GFP_KERNEL);
+ div = devm_kzalloc(dev, sizeof(*div), GFP_KERNEL);
if (!div)
return ERR_PTR(-ENOMEM);
@@ -117,11 +117,9 @@ struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
max_div = div_mask(width) + 1;
min_div = 1;
- table = kcalloc(max_div + 1, sizeof(*table), GFP_KERNEL);
- if (!table) {
- kfree(div);
+ table = devm_kcalloc(dev, max_div + 1, sizeof(*table), GFP_KERNEL);
+ if (!table)
return ERR_PTR(-ENOMEM);
- }
for (i = 0; i < max_div; i++) {
table[i].div = min_div + i;
@@ -144,11 +142,9 @@ struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
div->table = table;
/* register the clock */
- clk = clk_register(dev, &div->hw);
- if (IS_ERR(clk)) {
- kfree(table);
- kfree(div);
- }
+ ret = devm_clk_hw_register(dev, &div->hw);
+ if (ret)
+ return ERR_PTR(ret);
- return clk;
+ return &div->hw;
}
diff --git a/drivers/clk/hisilicon/clkgate-separated.c b/drivers/clk/hisilicon/clkgate-separated.c
index 90d858522967..dc64a8a0ab58 100644
--- a/drivers/clk/hisilicon/clkgate-separated.c
+++ b/drivers/clk/hisilicon/clkgate-separated.c
@@ -11,8 +11,8 @@
#include <linux/kernel.h>
#include <linux/clk-provider.h>
+#include <linux/device.h>
#include <linux/io.h>
-#include <linux/slab.h>
#include "clk.h"
@@ -80,17 +80,18 @@ static const struct clk_ops clkgate_separated_ops = {
.is_enabled = clkgate_separated_is_enabled,
};
-struct clk *hisi_register_clkgate_sep(struct device *dev, const char *name,
- const char *parent_name,
- unsigned long flags,
- void __iomem *reg, u8 bit_idx,
- u8 clk_gate_flags, spinlock_t *lock)
+struct clk_hw *
+devm_clk_hw_register_hisi_gate_sep(struct device *dev, const char *name,
+ const char *parent_name,
+ unsigned long flags,
+ void __iomem *reg, u8 bit_idx,
+ u8 clk_gate_flags, spinlock_t *lock)
{
struct clkgate_separated *sclk;
- struct clk *clk;
struct clk_init_data init;
+ int ret;
- sclk = kzalloc(sizeof(*sclk), GFP_KERNEL);
+ sclk = devm_kzalloc(dev, sizeof(*sclk), GFP_KERNEL);
if (!sclk)
return ERR_PTR(-ENOMEM);
@@ -106,8 +107,9 @@ struct clk *hisi_register_clkgate_sep(struct device *dev, const char *name,
sclk->hw.init = &init;
sclk->lock = lock;
- clk = clk_register(dev, &sclk->hw);
- if (IS_ERR(clk))
- kfree(sclk);
- return clk;
+ ret = devm_clk_hw_register(dev, &sclk->hw);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return &sclk->hw;
}
--
2.43.0
On 2/25/2024 2:52 PM, David Yang wrote:
> Helper functions extract common operations on platform drivers.
>
> During migration to devm APIs, (virtual) fixed clocks were found hard on
> devm APIs, since they often depended by crucial peripherals, thus require
> early initialization before device probing, and cannot use devm APIs.
We have core_initcall() in drivers so CRGs are probed very early. This
shouldn't be a problem.
>
> One solution to this problem is to add a "fixed-clock" node to device tree,
> independent to clock device, and make those peripherals depend on that.
> However, there is also some devices that do use fixed clocks provided by
> drivers, for example clk-hi3660.c .
>
> To simplify codes, we migrate clocks of other types to devm APIs, while
> keep fixed clocks self-managed, alongside with struct hisi_clock_data, and
> remove devm-managed hisi_clock_data.
Do we really want? How about leave old SoCs alone and just introduce a
new set of APIs for new SoCs?
Just like CCF, devm_ functions are simply wrappers of old APIs with the
help of devres, the old APIs are still available.
So for HiSilicon, I think we can take a similar approach, i.e., add a
new set of wrapper functions with the help of devres rather than
modifying old code.
The implementation of officially provided devm_ APIs can be a good example.
>
> `hisi_clk_alloc` will be removed in the following patch.
>
> Signed-off-by: David Yang <[email protected]>
> ---
> drivers/clk/hisilicon/clk.c | 157 ++++++++++++++++++++++++++++++++++
> drivers/clk/hisilicon/clk.h | 46 +++++++++-
> drivers/clk/hisilicon/crg.h | 5 ++
> drivers/clk/hisilicon/reset.c | 42 +++++++++
> 4 files changed, 248 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
> index 09368fd32bef..e50115f8e236 100644
> --- a/drivers/clk/hisilicon/clk.c
> +++ b/drivers/clk/hisilicon/clk.c
> @@ -88,6 +88,25 @@ struct hisi_clock_data *hisi_clk_init(struct device_node *np,
> }
> EXPORT_SYMBOL_GPL(hisi_clk_init);
>
> +void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data)
> +{
> + if (data->clks) {
> + if (data->clks->fixed_rate_clks_num)
> + hisi_clk_unregister_fixed_rate(data->clks->fixed_rate_clks,
> + data->clks->fixed_rate_clks_num,
> + data);
> + if (data->clks->fixed_factor_clks_num)
> + hisi_clk_unregister_fixed_factor(data->clks->fixed_factor_clks,
> + data->clks->fixed_factor_clks_num,
> + data);
> + }
> +
> + of_clk_del_provider(np);
> + kfree(data->clk_data.clks);
> + kfree(data);
> +}
> +EXPORT_SYMBOL_GPL(hisi_clk_free);
> +
> int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *clks,
> int nums, struct hisi_clock_data *data)
> {
> @@ -341,3 +360,141 @@ void __init hi6220_clk_register_divider(const struct hi6220_divider_clock *clks,
> data->clk_data.clks[clks[i].id] = clk;
> }
> }
> +
> +static size_t hisi_clocks_get_nr(const struct hisi_clocks *clks)
> +{
> + if (clks->nr)
> + return clks->nr;
> +
> + return clks->fixed_rate_clks_num + clks->fixed_factor_clks_num +
> + clks->mux_clks_num + clks->phase_clks_num +
> + clks->divider_clks_num + clks->gate_clks_num +
> + clks->gate_sep_clks_num + clks->customized_clks_num;
> +}
> +
> +int hisi_clk_early_init(struct device_node *np, const struct hisi_clocks *clks)
> +{
> + struct hisi_clock_data *data;
> + int ret;
> +
> + data = hisi_clk_init(np, hisi_clocks_get_nr(clks));
> + if (!data)
> + return -ENOMEM;
> + data->clks = clks;
> +
> + ret = hisi_clk_register_fixed_rate(clks->fixed_rate_clks,
> + clks->fixed_rate_clks_num, data);
> + if (ret)
> + goto err;
> +
> + ret = hisi_clk_register_fixed_factor(clks->fixed_factor_clks,
> + clks->fixed_factor_clks_num, data);
> + if (ret)
> + goto err;
> +
> + np->data = data;
> + return 0;
> +
> +err:
> + hisi_clk_free(np, data);
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(hisi_clk_early_init);
> +
> +static int hisi_clk_register(struct device *dev, const struct hisi_clocks *clks,
> + struct hisi_clock_data *data)
> +{
> + int ret;
> +
> + if (clks->mux_clks_num) {
> + ret = hisi_clk_register_mux(clks->mux_clks,
> + clks->mux_clks_num, data);
> + if (ret)
> + return ret;
> + }
> +
> + if (clks->phase_clks_num) {
> + ret = hisi_clk_register_phase(dev, clks->phase_clks,
> + clks->phase_clks_num, data);
> + if (ret)
> + return ret;
> + }
> +
> + if (clks->divider_clks_num) {
> + ret = hisi_clk_register_divider(clks->divider_clks,
> + clks->divider_clks_num, data);
> + if (ret)
> + return ret;
> + }
> +
> + if (clks->gate_clks_num) {
> + ret = hisi_clk_register_gate(clks->gate_clks,
> + clks->gate_clks_num, data);
> + if (ret)
> + return ret;
> + }
> +
> + if (clks->gate_sep_clks_num) {
> + hisi_clk_register_gate_sep(clks->gate_sep_clks,
> + clks->gate_sep_clks_num, data);
> + }
> +
> + if (clks->clk_register_customized && clks->customized_clks_num) {
> + ret = clks->clk_register_customized(dev, clks->customized_clks,
> + clks->customized_clks_num, data);
> + if (ret)
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +int hisi_clk_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct device_node *np = dev->of_node;
> + const struct hisi_clocks *clks;
> + struct hisi_clock_data *data;
> + int ret;
> +
> + clks = of_device_get_match_data(dev);
> + if (!clks)
> + return -ENOENT;
> +
> + if (!np->data) {
> + ret = hisi_clk_early_init(np, clks);
> + if (ret)
> + return ret;
> + }
> +
> + data = np->data;
> + np->data = NULL;
> +
> + if (clks->prologue) {
> + ret = clks->prologue(dev, data);
> + if (ret)
> + goto err;
> + }
> +
> + ret = hisi_clk_register(dev, clks, data);
> + if (ret)
> + goto err;
> +
> + platform_set_drvdata(pdev, data);
> + return 0;
> +
> +err:
> + hisi_clk_free(np, data);
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(hisi_clk_probe);
> +
> +void hisi_clk_remove(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct device_node *np = dev->of_node;
> + struct hisi_clock_data *data = platform_get_drvdata(pdev);
> +
> + hisi_clk_free(np, data);
> +}
> +EXPORT_SYMBOL_GPL(hisi_clk_remove);
> diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h
> index 7a9b42e1b027..87b17e9b79a3 100644
> --- a/drivers/clk/hisilicon/clk.h
> +++ b/drivers/clk/hisilicon/clk.h
> @@ -17,10 +17,12 @@
> #include <linux/spinlock.h>
>
> struct platform_device;
> +struct hisi_clocks;
>
> struct hisi_clock_data {
> - struct clk_onecell_data clk_data;
> - void __iomem *base;
> + struct clk_onecell_data clk_data;
> + void __iomem *base;
> + const struct hisi_clocks *clks;
> };
>
> struct hisi_fixed_rate_clock {
> @@ -103,6 +105,39 @@ struct hisi_gate_clock {
> const char *alias;
> };
>
> +struct hisi_clocks {
> + /* if 0, sum all *_num */
> + size_t nr;
> +
> + int (*prologue)(struct device *dev, struct hisi_clock_data *data);
> +
> + const struct hisi_fixed_rate_clock *fixed_rate_clks;
> + size_t fixed_rate_clks_num;
> +
> + const struct hisi_fixed_factor_clock *fixed_factor_clks;
> + size_t fixed_factor_clks_num;
> +
> + const struct hisi_mux_clock *mux_clks;
> + size_t mux_clks_num;
> +
> + const struct hisi_phase_clock *phase_clks;
> + size_t phase_clks_num;
> +
> + const struct hisi_divider_clock *divider_clks;
> + size_t divider_clks_num;
> +
> + const struct hisi_gate_clock *gate_clks;
> + size_t gate_clks_num;
> +
> + const struct hisi_gate_clock *gate_sep_clks;
> + size_t gate_sep_clks_num;
> +
> + const void *customized_clks;
> + size_t customized_clks_num;
> + int (*clk_register_customized)(struct device *dev, const void *clks,
> + size_t num, struct hisi_clock_data *data);
> +};
> +
> struct clk *hisi_register_clkgate_sep(struct device *, const char *,
> const char *, unsigned long,
> void __iomem *, u8,
> @@ -113,6 +148,7 @@ struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
>
> struct hisi_clock_data *hisi_clk_alloc(struct platform_device *, int);
> struct hisi_clock_data *hisi_clk_init(struct device_node *, int);
> +void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data);
> int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *,
> int, struct hisi_clock_data *);
> int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *,
> @@ -154,4 +190,10 @@ hisi_clk_unregister(mux)
> hisi_clk_unregister(divider)
> hisi_clk_unregister(gate)
>
> +/* helper functions for platform driver */
> +
> +int hisi_clk_early_init(struct device_node *np, const struct hisi_clocks *clks);
> +int hisi_clk_probe(struct platform_device *pdev);
> +void hisi_clk_remove(struct platform_device *pdev);
> +
> #endif /* __HISI_CLK_H */
> diff --git a/drivers/clk/hisilicon/crg.h b/drivers/clk/hisilicon/crg.h
> index 803f6ba6d7a2..bd8e76b1f6d7 100644
> --- a/drivers/clk/hisilicon/crg.h
> +++ b/drivers/clk/hisilicon/crg.h
> @@ -22,4 +22,9 @@ struct hisi_crg_dev {
> const struct hisi_crg_funcs *funcs;
> };
>
> +/* helper functions for platform driver */
> +
> +int hisi_crg_probe(struct platform_device *pdev);
> +void hisi_crg_remove(struct platform_device *pdev);
> +
> #endif /* __HISI_CRG_H */
> diff --git a/drivers/clk/hisilicon/reset.c b/drivers/clk/hisilicon/reset.c
> index 93cee17db8b1..c7d4c9ea7183 100644
> --- a/drivers/clk/hisilicon/reset.c
> +++ b/drivers/clk/hisilicon/reset.c
> @@ -6,11 +6,15 @@
> */
>
> #include <linux/io.h>
> +#include <linux/kernel.h>
> #include <linux/of_address.h>
> #include <linux/platform_device.h>
> #include <linux/reset-controller.h>
> #include <linux/slab.h>
> #include <linux/spinlock.h>
> +
> +#include "clk.h"
> +#include "crg.h"
> #include "reset.h"
>
> #define HISI_RESET_BIT_MASK 0x1f
> @@ -116,3 +120,41 @@ void hisi_reset_exit(struct hisi_reset_controller *rstc)
> reset_controller_unregister(&rstc->rcdev);
> }
> EXPORT_SYMBOL_GPL(hisi_reset_exit);
> +
> +int hisi_crg_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct hisi_crg_dev *crg;
> + int ret;
> +
> + crg = devm_kmalloc(dev, sizeof(*crg), GFP_KERNEL);
> + if (!crg)
> + return -ENOMEM;
> +
> + ret = hisi_clk_probe(pdev);
> + if (ret)
> + return ret;
> +
> + crg->rstc = hisi_reset_init(pdev);
> + if (!crg->rstc) {
> + ret = -ENOMEM;
> + goto err;
> + }
> +
> + platform_set_drvdata(pdev, crg);
> + return 0;
> +
> +err:
> + hisi_clk_remove(pdev);
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(hisi_crg_probe);
> +
> +void hisi_crg_remove(struct platform_device *pdev)
> +{
> + struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
> +
> + hisi_reset_exit(crg->rstc);
> + hisi_clk_remove(pdev);
> +}
> +EXPORT_SYMBOL_GPL(hisi_crg_remove);
--
Regards,
Yang Xiwen
Yang Xiwen <[email protected]> 于2024年2月25日周日 19:56写道：
>
> On 2/25/2024 2:52 PM, David Yang wrote:
> > Helper functions extract common operations on platform drivers.
> >
> > During migration to devm APIs, (virtual) fixed clocks were found hard on
> > devm APIs, since they often depended by crucial peripherals, thus require
> > early initialization before device probing, and cannot use devm APIs.
>
>
> We have core_initcall() in drivers so CRGs are probed very early. This
> shouldn't be a problem.
>
This is also handled within hisi_clk_early_init(), and tested against
real devices.
>
> >
> > One solution to this problem is to add a "fixed-clock" node to device tree,
> > independent to clock device, and make those peripherals depend on that.
> > However, there is also some devices that do use fixed clocks provided by
> > drivers, for example clk-hi3660.c .
> >
> > To simplify codes, we migrate clocks of other types to devm APIs, while
> > keep fixed clocks self-managed, alongside with struct hisi_clock_data, and
> > remove devm-managed hisi_clock_data.
>
>
> Do we really want? How about leave old SoCs alone and just introduce a
> new set of APIs for new SoCs?
>
>
> Just like CCF, devm_ functions are simply wrappers of old APIs with the
> help of devres, the old APIs are still available.
>
>
> So for HiSilicon, I think we can take a similar approach, i.e., add a
> new set of wrapper functions with the help of devres rather than
> modifying old code.
>
>
> The implementation of officially provided devm_ APIs can be a good example.
>
This is somewhat requested by the maintainer, see replies in v5 of the
previous series
https://lore.kernel.org/all/[email protected]/
While this series migrates into devm_, it mainly serves as a cleanup.
Existing drivers share most of registration flows, while lack of
proper maintenance over times. This series improves overall code
quality, and reduce redundancy code by introducing newly-designed
common functions.
We might as well keep old API, but this series has no intention on how
new device will be introduced.
>
> >
> > `hisi_clk_alloc` will be removed in the following patch.
> >
> > Signed-off-by: David Yang <[email protected]>
> > ---
> > drivers/clk/hisilicon/clk.c | 157 ++++++++++++++++++++++++++++++++++
> > drivers/clk/hisilicon/clk.h | 46 +++++++++-
> > drivers/clk/hisilicon/crg.h | 5 ++
> > drivers/clk/hisilicon/reset.c | 42 +++++++++
> > 4 files changed, 248 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
> > index 09368fd32bef..e50115f8e236 100644
> > --- a/drivers/clk/hisilicon/clk.c
> > +++ b/drivers/clk/hisilicon/clk.c
> > @@ -88,6 +88,25 @@ struct hisi_clock_data *hisi_clk_init(struct device_node *np,
> > }
> > EXPORT_SYMBOL_GPL(hisi_clk_init);
> >
> > +void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data)
> > +{
> > + if (data->clks) {
> > + if (data->clks->fixed_rate_clks_num)
> > + hisi_clk_unregister_fixed_rate(data->clks->fixed_rate_clks,
> > + data->clks->fixed_rate_clks_num,
> > + data);
> > + if (data->clks->fixed_factor_clks_num)
> > + hisi_clk_unregister_fixed_factor(data->clks->fixed_factor_clks,
> > + data->clks->fixed_factor_clks_num,
> > + data);
> > + }
> > +
> > + of_clk_del_provider(np);
> > + kfree(data->clk_data.clks);
> > + kfree(data);
> > +}
> > +EXPORT_SYMBOL_GPL(hisi_clk_free);
> > +
> > int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *clks,
> > int nums, struct hisi_clock_data *data)
> > {
> > @@ -341,3 +360,141 @@ void __init hi6220_clk_register_divider(const struct hi6220_divider_clock *clks,
> > data->clk_data.clks[clks[i].id] = clk;
> > }
> > }
> > +
> > +static size_t hisi_clocks_get_nr(const struct hisi_clocks *clks)
> > +{
> > + if (clks->nr)
> > + return clks->nr;
> > +
> > + return clks->fixed_rate_clks_num + clks->fixed_factor_clks_num +
> > + clks->mux_clks_num + clks->phase_clks_num +
> > + clks->divider_clks_num + clks->gate_clks_num +
> > + clks->gate_sep_clks_num + clks->customized_clks_num;
> > +}
> > +
> > +int hisi_clk_early_init(struct device_node *np, const struct hisi_clocks *clks)
> > +{
> > + struct hisi_clock_data *data;
> > + int ret;
> > +
> > + data = hisi_clk_init(np, hisi_clocks_get_nr(clks));
> > + if (!data)
> > + return -ENOMEM;
> > + data->clks = clks;
> > +
> > + ret = hisi_clk_register_fixed_rate(clks->fixed_rate_clks,
> > + clks->fixed_rate_clks_num, data);
> > + if (ret)
> > + goto err;
> > +
> > + ret = hisi_clk_register_fixed_factor(clks->fixed_factor_clks,
> > + clks->fixed_factor_clks_num, data);
> > + if (ret)
> > + goto err;
> > +
> > + np->data = data;
> > + return 0;
> > +
> > +err:
> > + hisi_clk_free(np, data);
> > + return ret;
> > +}
> > +EXPORT_SYMBOL_GPL(hisi_clk_early_init);
> > +
> > +static int hisi_clk_register(struct device *dev, const struct hisi_clocks *clks,
> > + struct hisi_clock_data *data)
> > +{
> > + int ret;
> > +
> > + if (clks->mux_clks_num) {
> > + ret = hisi_clk_register_mux(clks->mux_clks,
> > + clks->mux_clks_num, data);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (clks->phase_clks_num) {
> > + ret = hisi_clk_register_phase(dev, clks->phase_clks,
> > + clks->phase_clks_num, data);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (clks->divider_clks_num) {
> > + ret = hisi_clk_register_divider(clks->divider_clks,
> > + clks->divider_clks_num, data);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (clks->gate_clks_num) {
> > + ret = hisi_clk_register_gate(clks->gate_clks,
> > + clks->gate_clks_num, data);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (clks->gate_sep_clks_num) {
> > + hisi_clk_register_gate_sep(clks->gate_sep_clks,
> > + clks->gate_sep_clks_num, data);
> > + }
> > +
> > + if (clks->clk_register_customized && clks->customized_clks_num) {
> > + ret = clks->clk_register_customized(dev, clks->customized_clks,
> > + clks->customized_clks_num, data);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +int hisi_clk_probe(struct platform_device *pdev)
> > +{
> > + struct device *dev = &pdev->dev;
> > + struct device_node *np = dev->of_node;
> > + const struct hisi_clocks *clks;
> > + struct hisi_clock_data *data;
> > + int ret;
> > +
> > + clks = of_device_get_match_data(dev);
> > + if (!clks)
> > + return -ENOENT;
> > +
> > + if (!np->data) {
> > + ret = hisi_clk_early_init(np, clks);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + data = np->data;
> > + np->data = NULL;
> > +
> > + if (clks->prologue) {
> > + ret = clks->prologue(dev, data);
> > + if (ret)
> > + goto err;
> > + }
> > +
> > + ret = hisi_clk_register(dev, clks, data);
> > + if (ret)
> > + goto err;
> > +
> > + platform_set_drvdata(pdev, data);
> > + return 0;
> > +
> > +err:
> > + hisi_clk_free(np, data);
> > + return ret;
> > +}
> > +EXPORT_SYMBOL_GPL(hisi_clk_probe);
> > +
> > +void hisi_clk_remove(struct platform_device *pdev)
> > +{
> > + struct device *dev = &pdev->dev;
> > + struct device_node *np = dev->of_node;
> > + struct hisi_clock_data *data = platform_get_drvdata(pdev);
> > +
> > + hisi_clk_free(np, data);
> > +}
> > +EXPORT_SYMBOL_GPL(hisi_clk_remove);
> > diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h
> > index 7a9b42e1b027..87b17e9b79a3 100644
> > --- a/drivers/clk/hisilicon/clk.h
> > +++ b/drivers/clk/hisilicon/clk.h
> > @@ -17,10 +17,12 @@
> > #include <linux/spinlock.h>
> >
> > struct platform_device;
> > +struct hisi_clocks;
> >
> > struct hisi_clock_data {
> > - struct clk_onecell_data clk_data;
> > - void __iomem *base;
> > + struct clk_onecell_data clk_data;
> > + void __iomem *base;
> > + const struct hisi_clocks *clks;
> > };
> >
> > struct hisi_fixed_rate_clock {
> > @@ -103,6 +105,39 @@ struct hisi_gate_clock {
> > const char *alias;
> > };
> >
> > +struct hisi_clocks {
> > + /* if 0, sum all *_num */
> > + size_t nr;
> > +
> > + int (*prologue)(struct device *dev, struct hisi_clock_data *data);
> > +
> > + const struct hisi_fixed_rate_clock *fixed_rate_clks;
> > + size_t fixed_rate_clks_num;
> > +
> > + const struct hisi_fixed_factor_clock *fixed_factor_clks;
> > + size_t fixed_factor_clks_num;
> > +
> > + const struct hisi_mux_clock *mux_clks;
> > + size_t mux_clks_num;
> > +
> > + const struct hisi_phase_clock *phase_clks;
> > + size_t phase_clks_num;
> > +
> > + const struct hisi_divider_clock *divider_clks;
> > + size_t divider_clks_num;
> > +
> > + const struct hisi_gate_clock *gate_clks;
> > + size_t gate_clks_num;
> > +
> > + const struct hisi_gate_clock *gate_sep_clks;
> > + size_t gate_sep_clks_num;
> > +
> > + const void *customized_clks;
> > + size_t customized_clks_num;
> > + int (*clk_register_customized)(struct device *dev, const void *clks,
> > + size_t num, struct hisi_clock_data *data);
> > +};
> > +
> > struct clk *hisi_register_clkgate_sep(struct device *, const char *,
> > const char *, unsigned long,
> > void __iomem *, u8,
> > @@ -113,6 +148,7 @@ struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
> >
> > struct hisi_clock_data *hisi_clk_alloc(struct platform_device *, int);
> > struct hisi_clock_data *hisi_clk_init(struct device_node *, int);
> > +void hisi_clk_free(struct device_node *np, struct hisi_clock_data *data);
> > int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *,
> > int, struct hisi_clock_data *);
> > int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *,
> > @@ -154,4 +190,10 @@ hisi_clk_unregister(mux)
> > hisi_clk_unregister(divider)
> > hisi_clk_unregister(gate)
> >
> > +/* helper functions for platform driver */
> > +
> > +int hisi_clk_early_init(struct device_node *np, const struct hisi_clocks *clks);
> > +int hisi_clk_probe(struct platform_device *pdev);
> > +void hisi_clk_remove(struct platform_device *pdev);
> > +
> > #endif /* __HISI_CLK_H */
> > diff --git a/drivers/clk/hisilicon/crg.h b/drivers/clk/hisilicon/crg.h
> > index 803f6ba6d7a2..bd8e76b1f6d7 100644
> > --- a/drivers/clk/hisilicon/crg.h
> > +++ b/drivers/clk/hisilicon/crg.h
> > @@ -22,4 +22,9 @@ struct hisi_crg_dev {
> > const struct hisi_crg_funcs *funcs;
> > };
> >
> > +/* helper functions for platform driver */
> > +
> > +int hisi_crg_probe(struct platform_device *pdev);
> > +void hisi_crg_remove(struct platform_device *pdev);
> > +
> > #endif /* __HISI_CRG_H */
> > diff --git a/drivers/clk/hisilicon/reset.c b/drivers/clk/hisilicon/reset.c
> > index 93cee17db8b1..c7d4c9ea7183 100644
> > --- a/drivers/clk/hisilicon/reset.c
> > +++ b/drivers/clk/hisilicon/reset.c
> > @@ -6,11 +6,15 @@
> > */
> >
> > #include <linux/io.h>
> > +#include <linux/kernel.h>
> > #include <linux/of_address.h>
> > #include <linux/platform_device.h>
> > #include <linux/reset-controller.h>
> > #include <linux/slab.h>
> > #include <linux/spinlock.h>
> > +
> > +#include "clk.h"
> > +#include "crg.h"
> > #include "reset.h"
> >
> > #define HISI_RESET_BIT_MASK 0x1f
> > @@ -116,3 +120,41 @@ void hisi_reset_exit(struct hisi_reset_controller *rstc)
> > reset_controller_unregister(&rstc->rcdev);
> > }
> > EXPORT_SYMBOL_GPL(hisi_reset_exit);
> > +
> > +int hisi_crg_probe(struct platform_device *pdev)
> > +{
> > + struct device *dev = &pdev->dev;
> > + struct hisi_crg_dev *crg;
> > + int ret;
> > +
> > + crg = devm_kmalloc(dev, sizeof(*crg), GFP_KERNEL);
> > + if (!crg)
> > + return -ENOMEM;
> > +
> > + ret = hisi_clk_probe(pdev);
> > + if (ret)
> > + return ret;
> > +
> > + crg->rstc = hisi_reset_init(pdev);
> > + if (!crg->rstc) {
> > + ret = -ENOMEM;
> > + goto err;
> > + }
> > +
> > + platform_set_drvdata(pdev, crg);
> > + return 0;
> > +
> > +err:
> > + hisi_clk_remove(pdev);
> > + return ret;
> > +}
> > +EXPORT_SYMBOL_GPL(hisi_crg_probe);
> > +
> > +void hisi_crg_remove(struct platform_device *pdev)
> > +{
> > + struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
> > +
> > + hisi_reset_exit(crg->rstc);
> > + hisi_clk_remove(pdev);
> > +}
> > +EXPORT_SYMBOL_GPL(hisi_crg_remove);
>
>
> --
> Regards,
> Yang Xiwen
>
Use common helper functions and register clks with a single of_device_id
data.
Signed-off-by: David Yang <[email protected]>
---
drivers/clk/hisilicon/clk-hip04.c | 38 ++++++++++++++++++++-----------
1 file changed, 25 insertions(+), 13 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hip04.c b/drivers/clk/hisilicon/clk-hip04.c
index feb34e98af8c..8ba82675ff64 100644
--- a/drivers/clk/hisilicon/clk-hip04.c
+++ b/drivers/clk/hisilicon/clk-hip04.c
@@ -10,8 +10,8 @@
#include <linux/kernel.h>
#include <linux/clk-provider.h>
-#include <linux/io.h>
-#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <dt-bindings/clock/hip04-clock.h>
@@ -24,16 +24,28 @@ static struct hisi_fixed_rate_clock hip04_fixed_rate_clks[] __initdata = {
{ HIP04_CLK_168M, "clk168m", NULL, 0, 168750000, },
};
-static void __init hip04_clk_init(struct device_node *np)
-{
- struct hisi_clock_data *clk_data;
+static const struct hisi_clocks hip04_clks = {
+ .fixed_rate_clks = hip04_fixed_rate_clks,
+ .fixed_factor_clks_num = ARRAY_SIZE(hip04_fixed_rate_clks),
+};
+
+static const struct of_device_id hip04_clk_match_table[] = {
+ { .compatible = "hisilicon,hip04-clock",
+ .data = &hip04_clks },
+ { }
+};
+MODULE_DEVICE_TABLE(of, hip04_clk_match_table);
+
+static struct platform_driver hip04_clk_driver = {
+ .probe = hisi_clk_probe,
+ .remove_new = hisi_clk_remove,
+ .driver = {
+ .name = "hip04-clock",
+ .of_match_table = hip04_clk_match_table,
+ },
+};
- clk_data = hisi_clk_init(np, HIP04_NR_CLKS);
- if (!clk_data)
- return;
+module_platform_driver(hip04_clk_driver);
- hisi_clk_register_fixed_rate(hip04_fixed_rate_clks,
- ARRAY_SIZE(hip04_fixed_rate_clks),
- clk_data);
-}
-CLK_OF_DECLARE(hip04_clk, "hisilicon,hip04-clock", hip04_clk_init);
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("HiSilicon HiP04 Clock Driver");
--
2.43.0
Quoting David Yang (2024-02-24 22:52:15)
> Migrate devm APIs for HiSilicon clock drivers and remove redundant codes.
>
> This series is a partial improvement of [1]
This doesn't compile on v6.9-rc1. Please rebase and resend.