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From: David Yang <mmyangfl@gmail.com>
To: linux-clk@vger.kernel.org
Cc: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	linux-kernel@vger.kernel.org,
	David Yang <mmyangfl@gmail.com>
Subject: [PATCH v9 06/13] clk: hisilicon: hi3559a: Use helper functions
Date: Fri, 12 Apr 2024 13:10:35 +0800
Message-ID: <20240412051041.90376-8-mmyangfl@gmail.com>
In-Reply-To: <20240412051041.90376-2-mmyangfl@gmail.com>
References: <20240412051041.90376-2-mmyangfl@gmail.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

Use common helper functions and register clks with a single of_device_id
data.

Signed-off-by: David Yang <mmyangfl@gmail.com>
---
 drivers/clk/hisilicon/clk-hi3559a.c | 230 +++++-----------------------
 1 file changed, 37 insertions(+), 193 deletions(-)

diff --git a/drivers/clk/hisilicon/clk-hi3559a.c b/drivers/clk/hisilicon/clk-hi3559a.c
index c79a94f6d9d2..1902d943fe34 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>
 
@@ -452,9 +451,11 @@ 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;
@@ -462,10 +463,11 @@ static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,
 	int i;
 
 	p_clk = devm_kcalloc(dev, nums, sizeof(*p_clk), 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 =
@@ -492,78 +494,27 @@ static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,
 		if (IS_ERR(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[] = {
@@ -671,7 +622,7 @@ 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;
@@ -694,148 +645,41 @@ 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