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* [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock
@ 2023-06-08  3:34 Wang Jianzheng
  2023-06-08  7:30 ` Neil Armstrong
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: Wang Jianzheng @ 2023-06-08  3:34 UTC (permalink / raw)
  To: Artur Weber, Neil Armstrong, Sam Ravnborg, David Airlie,
	Daniel Vetter, open list:DRM PANEL DRIVERS, open list
  Cc: opensource.kernel, wangjianzheng

Remove unneeded variable and directly return 0.

Signed-off-by: Wang Jianzheng <wangjianzheng@vivo.com>
---
 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
index 102e1fc7ee38..fec0d014fd0e 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
@@ -66,7 +66,6 @@ static void s6d7aa0_reset(struct s6d7aa0 *ctx)
 static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
 {
 	struct mipi_dsi_device *dsi = ctx->dsi;
-	int ret = 0;
 
 	if (lock) {
 		mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0xa5, 0xa5);
@@ -80,7 +79,7 @@ static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
 			mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0xa5, 0xa5);
 	}
 
-	return ret;
+	return 0;
 }
 
 static int s6d7aa0_on(struct s6d7aa0 *ctx)
-- 
2.39.0


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock
  2023-06-08  3:34 [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock Wang Jianzheng
@ 2023-06-08  7:30 ` Neil Armstrong
  2023-06-08  9:36 ` Andi Shyti
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 6+ messages in thread
From: Neil Armstrong @ 2023-06-08  7:30 UTC (permalink / raw)
  To: Wang Jianzheng, Artur Weber, Sam Ravnborg, David Airlie,
	Daniel Vetter, open list:DRM PANEL DRIVERS, open list
  Cc: opensource.kernel

On 08/06/2023 05:34, Wang Jianzheng wrote:
> Remove unneeded variable and directly return 0.
> 
> Signed-off-by: Wang Jianzheng <wangjianzheng@vivo.com>
> ---
>   drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> index 102e1fc7ee38..fec0d014fd0e 100644
> --- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> +++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> @@ -66,7 +66,6 @@ static void s6d7aa0_reset(struct s6d7aa0 *ctx)
>   static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
>   {
>   	struct mipi_dsi_device *dsi = ctx->dsi;
> -	int ret = 0;
>   
>   	if (lock) {
>   		mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0xa5, 0xa5);
> @@ -80,7 +79,7 @@ static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
>   			mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0xa5, 0xa5);
>   	}
>   
> -	return ret;
> +	return 0;
>   }
>   
>   static int s6d7aa0_on(struct s6d7aa0 *ctx)

Acked-by: Neil Armstrong <neil.armstrong@linaro.org>

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock
  2023-06-08  3:34 [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock Wang Jianzheng
  2023-06-08  7:30 ` Neil Armstrong
@ 2023-06-08  9:36 ` Andi Shyti
  2023-06-08  9:52   ` Artur Weber
  2023-06-08 10:10 ` Artur Weber
  2023-06-08 12:51 ` Neil Armstrong
  3 siblings, 1 reply; 6+ messages in thread
From: Andi Shyti @ 2023-06-08  9:36 UTC (permalink / raw)
  To: Wang Jianzheng
  Cc: Artur Weber, Neil Armstrong, Sam Ravnborg, David Airlie,
	Daniel Vetter, open list:DRM PANEL DRIVERS, open list,
	opensource.kernel

Hi Jianzheng,

On Thu, Jun 08, 2023 at 11:34:46AM +0800, Wang Jianzheng wrote:
> Remove unneeded variable and directly return 0.
> 
> Signed-off-by: Wang Jianzheng <wangjianzheng@vivo.com>
> ---
>  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> index 102e1fc7ee38..fec0d014fd0e 100644
> --- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> +++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> @@ -66,7 +66,6 @@ static void s6d7aa0_reset(struct s6d7aa0 *ctx)
>  static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)

actually this function can completely made void.

>  {
>  	struct mipi_dsi_device *dsi = ctx->dsi;
> -	int ret = 0;
>  
>  	if (lock) {
>  		mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0xa5, 0xa5);
> @@ -80,7 +79,7 @@ static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
>  			mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0xa5, 0xa5);
>  	}
>  
> -	return ret;
> +	return 0;

Anyway the patch is fine:

Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> 

Andi

>  }
>  
>  static int s6d7aa0_on(struct s6d7aa0 *ctx)
> -- 
> 2.39.0

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock
  2023-06-08  9:36 ` Andi Shyti
@ 2023-06-08  9:52   ` Artur Weber
  0 siblings, 0 replies; 6+ messages in thread
From: Artur Weber @ 2023-06-08  9:52 UTC (permalink / raw)
  To: Andi Shyti, Wang Jianzheng
  Cc: Neil Armstrong, Sam Ravnborg, David Airlie, Daniel Vetter,
	open list:DRM PANEL DRIVERS, open list, opensource.kernel

On 08/06/2023 11:36, Andi Shyti wrote:
> Hi Jianzheng,
> 
> On Thu, Jun 08, 2023 at 11:34:46AM +0800, Wang Jianzheng wrote:
>> Remove unneeded variable and directly return 0.
>>
>> Signed-off-by: Wang Jianzheng <wangjianzheng@vivo.com>
>> ---
>>  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
>> index 102e1fc7ee38..fec0d014fd0e 100644
>> --- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
>> +++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
>> @@ -66,7 +66,6 @@ static void s6d7aa0_reset(struct s6d7aa0 *ctx)
>>  static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
> 
> actually this function can completely made void.

It can't be made void, as the mipi_dsi_dcs_write_seq() macro calls
return with an int[1].

Best regards
Artur

[1] https://github.com/torvalds/linux/blob/v6.4-rc5/include/drm/drm_mipi_dsi.h#L319-L337


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock
  2023-06-08  3:34 [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock Wang Jianzheng
  2023-06-08  7:30 ` Neil Armstrong
  2023-06-08  9:36 ` Andi Shyti
@ 2023-06-08 10:10 ` Artur Weber
  2023-06-08 12:51 ` Neil Armstrong
  3 siblings, 0 replies; 6+ messages in thread
From: Artur Weber @ 2023-06-08 10:10 UTC (permalink / raw)
  To: Wang Jianzheng, Neil Armstrong, Sam Ravnborg, David Airlie,
	Daniel Vetter, open list:DRM PANEL DRIVERS, open list
  Cc: opensource.kernel

On 08/06/2023 05:34, Wang Jianzheng wrote:
> Remove unneeded variable and directly return 0.
> 
> Signed-off-by: Wang Jianzheng <wangjianzheng@vivo.com>
> ---
>  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> index 102e1fc7ee38..fec0d014fd0e 100644
> --- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> +++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> @@ -66,7 +66,6 @@ static void s6d7aa0_reset(struct s6d7aa0 *ctx)
>  static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
>  {
>  	struct mipi_dsi_device *dsi = ctx->dsi;
> -	int ret = 0;
>  
>  	if (lock) {
>  		mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0xa5, 0xa5);
> @@ -80,7 +79,7 @@ static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
>  			mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0xa5, 0xa5);
>  	}
>  
> -	return ret;
> +	return 0;
>  }
>  
>  static int s6d7aa0_on(struct s6d7aa0 *ctx)

Reviewed-by: Artur Weber <aweber.kernel@gmail.com>

Best regards
Artur

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock
  2023-06-08  3:34 [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock Wang Jianzheng
                   ` (2 preceding siblings ...)
  2023-06-08 10:10 ` Artur Weber
@ 2023-06-08 12:51 ` Neil Armstrong
  3 siblings, 0 replies; 6+ messages in thread
From: Neil Armstrong @ 2023-06-08 12:51 UTC (permalink / raw)
  To: Artur Weber, Sam Ravnborg, David Airlie, Daniel Vetter,
	dri-devel, linux-kernel, Wang Jianzheng
  Cc: opensource.kernel

Hi,

On Thu, 08 Jun 2023 11:34:46 +0800, Wang Jianzheng wrote:
> Remove unneeded variable and directly return 0.
> 
> 

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[1/1] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=c5dacfe2e6c1251276e29b4cdac771f504593523

-- 
Neil


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2023-06-08 12:51 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2023-06-08  3:34 [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0_lock Wang Jianzheng
2023-06-08  7:30 ` Neil Armstrong
2023-06-08  9:36 ` Andi Shyti
2023-06-08  9:52   ` Artur Weber
2023-06-08 10:10 ` Artur Weber
2023-06-08 12:51 ` Neil Armstrong

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