mipi_dsi_dcs_set_display_on() returns an error code, but feiyang_enable()
currently ignores it and always reports success.

Return the DCS command result so callers can observe enable failures.

Signed-off-by: Christian Van <cvan20191@gmail.com>
---
 drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
index 4f8d6d8c0..dbdb7e3cb 100644
--- a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
+++ b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
@@ -98,9 +98,7 @@ static int feiyang_enable(struct drm_panel *panel)
 	/* T12 (video & logic signal rise + backlight rise) T12 >= 200ms */
 	msleep(200);
 
-	mipi_dsi_dcs_set_display_on(ctx->dsi);
-
-	return 0;
+	return mipi_dsi_dcs_set_display_on(ctx->dsi);
 }
 
 static int feiyang_disable(struct drm_panel *panel)
-- 
2.43.0

Hi,

On Sat, 25 Apr 2026 01:39:48 -0400, Christian Van wrote:
> mipi_dsi_dcs_set_display_on() returns an error code, but feiyang_enable()
> currently ignores it and always reports success.
> 
> Return the DCS command result so callers can observe enable failures.

Thanks, Applied to https://gitlab.freedesktop.org/drm/misc/kernel.git (drm-misc-fixes)

[1/1] drm/panel: feiyang-fy07024di26a30d: return display-on error
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/c67e8787f6743101c90c7a9c4bb7cf6f1f739f83

-- 
Neil

On 4/25/26 07:39, Christian Van wrote:
> mipi_dsi_dcs_set_display_on() returns an error code, but feiyang_enable()
> currently ignores it and always reports success.
> 
> Return the DCS command result so callers can observe enable failures.
> 
> Signed-off-by: Christian Van <cvan20191@gmail.com>
> ---
>   drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c | 4 +---
>   1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
> index 4f8d6d8c0..dbdb7e3cb 100644
> --- a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
> +++ b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
> @@ -98,9 +98,7 @@ static int feiyang_enable(struct drm_panel *panel)
>   	/* T12 (video & logic signal rise + backlight rise) T12 >= 200ms */
>   	msleep(200);
>   
> -	mipi_dsi_dcs_set_display_on(ctx->dsi);
> -
> -	return 0;
> +	return mipi_dsi_dcs_set_display_on(ctx->dsi);
>   }
>   
>   static int feiyang_disable(struct drm_panel *panel)

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

Thanks,
Neil