Re: [PATCH v5 003/111] pwm: Provide a macro to get the parent device of a given chip
On Thu, Jan 25, 2024 at 09:29:37PM +0100, Uwe Kleine-König wrote: > On Thu, Jan 25, 2024 at 11:32:47AM -0800, Florian Fainelli wrote: > > On 1/25/24 04:08, Uwe Kleine-König wrote: > > > Currently a pwm_chip stores in its struct device *dev member a pointer > > > to the parent device. Preparing a change that embeds a full struct > > > device in struct pwm_chip, this accessor macro should be used in all > > > drivers directly accessing chip->dev now. This way struct pwm_chip and > > > this macro can be changed without having to touch all drivers in the > > > same change set. > > > > > > Signed-off-by: Uwe Kleine-König > > > > Nit: this is not a macro but an inline function. > > Oh right, it used to be a macro, but I changed that. I made the commit > log read: > > pwm: Provide an inline function to get the parent device of a given chip > > Currently a pwm_chip stores in its struct device *dev member a pointer > to the parent device. Preparing a change that embeds a full struct > device in struct pwm_chip, this accessor function should be used in all > drivers directly accessing chip->dev now. This way struct pwm_chip and > this new function can be changed without having to touch all drivers in > the same change set. While looking into further feedback, I noticed I did the same mistake in all the patches that convert the drivers to use this function. I did git filter-branch --msg-filter 'sed "s/Make use of pwmchip_parent() macro/Make use of pwmchip_parent() accessor/; s/commit as struct pwm_chip::dev, use the macro/commit as struct pwm_chip::dev, use the accessor/; s/provided for exactly this purpose./function provided for exactly this purpose./"' linus/master.. on my branch to make the typical commit log read: pwm: atmel: Make use of pwmchip_parent() accessor struct pwm_chip::dev is about to change. To not have to touch this driver in the same commit as struct pwm_chip::dev, use the accessor function provided for exactly this purpose. I wont resend the whole series if this is the only change to it. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König| Industrial Linux Solutions | https://www.pengutronix.de/ | signature.asc Description: PGP signature
Re: [PATCH v5 003/111] pwm: Provide a macro to get the parent device of a given chip
On Thu, Jan 25, 2024 at 11:32:47AM -0800, Florian Fainelli wrote: > On 1/25/24 04:08, Uwe Kleine-König wrote: > > Currently a pwm_chip stores in its struct device *dev member a pointer > > to the parent device. Preparing a change that embeds a full struct > > device in struct pwm_chip, this accessor macro should be used in all > > drivers directly accessing chip->dev now. This way struct pwm_chip and > > this macro can be changed without having to touch all drivers in the > > same change set. > > > > Signed-off-by: Uwe Kleine-König > > Nit: this is not a macro but an inline function. Oh right, it used to be a macro, but I changed that. I made the commit log read: pwm: Provide an inline function to get the parent device of a given chip Currently a pwm_chip stores in its struct device *dev member a pointer to the parent device. Preparing a change that embeds a full struct device in struct pwm_chip, this accessor function should be used in all drivers directly accessing chip->dev now. This way struct pwm_chip and this new function can be changed without having to touch all drivers in the same change set. Thanks, Uwe -- Pengutronix e.K. | Uwe Kleine-König| Industrial Linux Solutions | https://www.pengutronix.de/ | signature.asc Description: PGP signature
Re: [PATCH v5 003/111] pwm: Provide a macro to get the parent device of a given chip
On 1/25/24 04:08, Uwe Kleine-König wrote: Currently a pwm_chip stores in its struct device *dev member a pointer to the parent device. Preparing a change that embeds a full struct device in struct pwm_chip, this accessor macro should be used in all drivers directly accessing chip->dev now. This way struct pwm_chip and this macro can be changed without having to touch all drivers in the same change set. Signed-off-by: Uwe Kleine-König Nit: this is not a macro but an inline function. -- Florian smime.p7s Description: S/MIME Cryptographic Signature
Re: [PATCH v5 003/111] pwm: Provide a macro to get the parent device of a given chip
Il 25/01/24 13:08, Uwe Kleine-König ha scritto:
Currently a pwm_chip stores in its struct device *dev member a pointer
to the parent device. Preparing a change that embeds a full struct
device in struct pwm_chip, this accessor macro should be used in all
drivers directly accessing chip->dev now. This way struct pwm_chip and
this macro can be changed without having to touch all drivers in the
same change set.
Signed-off-by: Uwe Kleine-König
Reviewed-by: AngeloGioacchino Del Regno
---
include/linux/pwm.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 8ffe9ae7a23a..d7966918f301 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -289,6 +289,11 @@ struct pwm_chip {
struct pwm_device *pwms;
};
+static inline struct device *pwmchip_parent(struct pwm_chip *chip)
+{
+ return chip->dev;
+}
+
#if IS_ENABLED(CONFIG_PWM)
/* PWM user APIs */
int pwm_apply_might_sleep(struct pwm_device *pwm, const struct pwm_state
*state);
[PATCH v5 003/111] pwm: Provide a macro to get the parent device of a given chip
Currently a pwm_chip stores in its struct device *dev member a pointer
to the parent device. Preparing a change that embeds a full struct
device in struct pwm_chip, this accessor macro should be used in all
drivers directly accessing chip->dev now. This way struct pwm_chip and
this macro can be changed without having to touch all drivers in the
same change set.
Signed-off-by: Uwe Kleine-König
---
include/linux/pwm.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 8ffe9ae7a23a..d7966918f301 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -289,6 +289,11 @@ struct pwm_chip {
struct pwm_device *pwms;
};
+static inline struct device *pwmchip_parent(struct pwm_chip *chip)
+{
+ return chip->dev;
+}
+
#if IS_ENABLED(CONFIG_PWM)
/* PWM user APIs */
int pwm_apply_might_sleep(struct pwm_device *pwm, const struct pwm_state
*state);
--
2.43.0
