The phy framework now allows runtime configurations, but only limited
to mipi now, and it's not reasonable to introduce user specified
configurations into the union phy_configure_opts structure. An simple
way is to replace with a void *.
We have already got some phy drivers which introduce private phy API
for runtime configurations, and with this patch, they can switch to
the phy_configure as a replace.
Signed-off-by: Zeng Tao <[email protected]>
---
drivers/phy/allwinner/phy-sun6i-mipi-dphy.c | 4 ++--
drivers/phy/cadence/cdns-dphy.c | 8 ++++----
drivers/phy/phy-core.c | 4 ++--
include/linux/phy/phy.h | 24 ++++++------------------
4 files changed, 14 insertions(+), 26 deletions(-)
diff --git a/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c b/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c
index 79c8af5..6a60473 100644
--- a/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c
+++ b/drivers/phy/allwinner/phy-sun6i-mipi-dphy.c
@@ -105,12 +105,12 @@ static int sun6i_dphy_init(struct phy *phy)
return 0;
}
-static int sun6i_dphy_configure(struct phy *phy, union phy_configure_opts *opts)
+static int sun6i_dphy_configure(struct phy *phy, void *opts)
{
struct sun6i_dphy *dphy = phy_get_drvdata(phy);
int ret;
- ret = phy_mipi_dphy_config_validate(&opts->mipi_dphy);
+ ret = phy_mipi_dphy_config_validate(opts);
if (ret)
return ret;
diff --git a/drivers/phy/cadence/cdns-dphy.c b/drivers/phy/cadence/cdns-dphy.c
index 90c4e9b..0ec5013 100644
--- a/drivers/phy/cadence/cdns-dphy.c
+++ b/drivers/phy/cadence/cdns-dphy.c
@@ -233,23 +233,23 @@ static int cdns_dphy_config_from_opts(struct phy *phy,
}
static int cdns_dphy_validate(struct phy *phy, enum phy_mode mode, int submode,
- union phy_configure_opts *opts)
+ void *opts)
{
struct cdns_dphy_cfg cfg = { 0 };
if (mode != PHY_MODE_MIPI_DPHY)
return -EINVAL;
- return cdns_dphy_config_from_opts(phy, &opts->mipi_dphy, &cfg);
+ return cdns_dphy_config_from_opts(phy, opts, &cfg);
}
-static int cdns_dphy_configure(struct phy *phy, union phy_configure_opts *opts)
+static int cdns_dphy_configure(struct phy *phy, void *opts)
{
struct cdns_dphy *dphy = phy_get_drvdata(phy);
struct cdns_dphy_cfg cfg = { 0 };
int ret;
- ret = cdns_dphy_config_from_opts(phy, &opts->mipi_dphy, &cfg);
+ ret = cdns_dphy_config_from_opts(phy, opts, &cfg);
if (ret)
return ret;
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index e3880c4a1..048d4d6 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -420,7 +420,7 @@ EXPORT_SYMBOL_GPL(phy_calibrate);
*
* Returns: 0 if successful, an negative error code otherwise
*/
-int phy_configure(struct phy *phy, union phy_configure_opts *opts)
+int phy_configure(struct phy *phy, void *opts)
{
int ret;
@@ -455,7 +455,7 @@ EXPORT_SYMBOL_GPL(phy_configure);
* Returns: 0 if successful, an negative error code otherwise
*/
int phy_validate(struct phy *phy, enum phy_mode mode, int submode,
- union phy_configure_opts *opts)
+ void *opts)
{
int ret;
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 15032f14..8948f94 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -16,8 +16,6 @@
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
-#include <linux/phy/phy-mipi-dphy.h>
-
struct phy;
enum phy_mode {
@@ -41,15 +39,6 @@ enum phy_mode {
PHY_MODE_SATA
};
-/**
- * union phy_configure_opts - Opaque generic phy configuration
- *
- * @mipi_dphy: Configuration set applicable for phys supporting
- * the MIPI_DPHY phy mode.
- */
-union phy_configure_opts {
- struct phy_configure_opts_mipi_dphy mipi_dphy;
-};
/**
* struct phy_ops - set of function pointers for performing phy operations
@@ -80,7 +69,7 @@ struct phy_ops {
*
* Returns: 0 if successful, an negative error code otherwise
*/
- int (*configure)(struct phy *phy, union phy_configure_opts *opts);
+ int (*configure)(struct phy *phy, void *opts);
/**
* @validate:
@@ -99,7 +88,7 @@ struct phy_ops {
* error code otherwise
*/
int (*validate)(struct phy *phy, enum phy_mode mode, int submode,
- union phy_configure_opts *opts);
+ void *opts);
int (*reset)(struct phy *phy);
int (*calibrate)(struct phy *phy);
void (*release)(struct phy *phy);
@@ -207,9 +196,9 @@ int phy_power_off(struct phy *phy);
int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode);
#define phy_set_mode(phy, mode) \
phy_set_mode_ext(phy, mode, 0)
-int phy_configure(struct phy *phy, union phy_configure_opts *opts);
+int phy_configure(struct phy *phy, void *opts);
int phy_validate(struct phy *phy, enum phy_mode mode, int submode,
- union phy_configure_opts *opts);
+ void *opts);
static inline enum phy_mode phy_get_mode(struct phy *phy)
{
@@ -354,8 +343,7 @@ static inline int phy_calibrate(struct phy *phy)
return -ENOSYS;
}
-static inline int phy_configure(struct phy *phy,
- union phy_configure_opts *opts)
+static inline int phy_configure(struct phy *phy, void *opts)
{
if (!phy)
return 0;
@@ -364,7 +352,7 @@ static inline int phy_configure(struct phy *phy,
}
static inline int phy_validate(struct phy *phy, enum phy_mode mode, int submode,
- union phy_configure_opts *opts)
+ void *opts)
{
if (!phy)
return 0;
--
2.7.4
On Fri, Jul 12, 2019 at 05:26:04PM +0800, Zeng Tao wrote:
> The phy framework now allows runtime configurations, but only limited
> to mipi now, and it's not reasonable to introduce user specified
> configurations into the union phy_configure_opts structure. An simple
> way is to replace with a void *.
>
> We have already got some phy drivers which introduce private phy API
> for runtime configurations, and with this patch, they can switch to
> the phy_configure as a replace.
>
> Signed-off-by: Zeng Tao <[email protected]>
I still don't believe this is the right approach, for the reasons
exposed in my first review of that patch.
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
On Fri, Jul 12, 2019 at 09:21:45AM +0200, Maxime Ripard wrote:
> On Fri, Jul 12, 2019 at 05:26:04PM +0800, Zeng Tao wrote:
> > The phy framework now allows runtime configurations, but only limited
> > to mipi now, and it's not reasonable to introduce user specified
> > configurations into the union phy_configure_opts structure. An simple
> > way is to replace with a void *.
> >
> > We have already got some phy drivers which introduce private phy API
> > for runtime configurations, and with this patch, they can switch to
> > the phy_configure as a replace.
> >
> > Signed-off-by: Zeng Tao <[email protected]>
>
> I still don't believe this is the right approach, for the reasons
> exposed in my first review of that patch.
I agree.
The very reason for having PHY type specific structs is to allow configuring
the PHY independently of the PHY device. This patch breaks that.
--
Regards,
Sakari Ailus
[email protected]