diff mbox series

[1/2] drm/panel: ltk050h3146w: add check for mipi_dsi_dcs_enter_sleep_mode

Message ID 20240620074720.852495-1-nichen@iscas.ac.cn (mailing list archive)
State New, archived
Headers show
Series [1/2] drm/panel: ltk050h3146w: add check for mipi_dsi_dcs_enter_sleep_mode | expand

Commit Message

Chen Ni June 20, 2024, 7:47 a.m. UTC
Add check for the return value of mipi_dsi_dcs_enter_sleep_mode() and
return the error if it fails in order to catch the error.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
---
 drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Christophe JAILLET June 20, 2024, 5:23 p.m. UTC | #1
Le 20/06/2024 à 09:47, Chen Ni a écrit :
> Add check for the return value of mipi_dsi_dcs_enter_sleep_mode() and
> return the error if it fails in order to catch the error.
> 
> Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
> ---
>   drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> index 292aa26a456d..24bf05d0589f 100644
> --- a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> +++ b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> @@ -526,7 +526,7 @@ static int ltk050h3146w_unprepare(struct drm_panel *panel)
>   		return ret;
>   	}
>   
> -	mipi_dsi_dcs_enter_sleep_mode(dsi);
> +	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
>   	if (ret < 0) {
>   		dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret);
>   		return ret;

Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>


See: 
https://lore.kernel.org/all/588e8b4519487f6d33419c4b0fa7f8ea1b26cb58.1619869792.git.christophe.jaillet@wanadoo.fr/
which never got any feedback.

CJ
Jessica Zhang June 21, 2024, 6:08 p.m. UTC | #2
On 6/20/2024 12:47 AM, Chen Ni wrote:
> Add check for the return value of mipi_dsi_dcs_enter_sleep_mode() and
> return the error if it fails in order to catch the error.
> 
> Signed-off-by: Chen Ni <nichen@iscas.ac.cn>

Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>

> ---
>   drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> index 292aa26a456d..24bf05d0589f 100644
> --- a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> +++ b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> @@ -526,7 +526,7 @@ static int ltk050h3146w_unprepare(struct drm_panel *panel)
>   		return ret;
>   	}
>   
> -	mipi_dsi_dcs_enter_sleep_mode(dsi);
> +	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
>   	if (ret < 0) {
>   		dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret);
>   		return ret;
> -- 
> 2.25.1
>
Dmitry Baryshkov June 21, 2024, 9:44 p.m. UTC | #3
On Thu, Jun 20, 2024 at 03:47:20PM GMT, Chen Ni wrote:
> Add check for the return value of mipi_dsi_dcs_enter_sleep_mode() and
> return the error if it fails in order to catch the error.
> 
> Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
> ---
>  drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Fixes: 6ea4383b9214 ("drm/panel: add panel driver for Leadtek LTK050H3146W")


Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
index 292aa26a456d..24bf05d0589f 100644
--- a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
+++ b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
@@ -526,7 +526,7 @@  static int ltk050h3146w_unprepare(struct drm_panel *panel)
 		return ret;
 	}
 
-	mipi_dsi_dcs_enter_sleep_mode(dsi);
+	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
 	if (ret < 0) {
 		dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret);
 		return ret;