This panel driver uses DSC PPS functions and as such depends on the
DRM_DISPLAY_DP_HELPER. Select this symbol to make required functions
available to the driver.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404200800.kYsRYyli-lkp@intel.com/
Fixes: 069a6c0e94f9 ("drm: panel: Add LG sw43408 panel driver")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/panel/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 4a2f621433ef..3e3f63479544 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -340,6 +340,8 @@ config DRM_PANEL_LG_SW43408
 	depends on OF
 	depends on DRM_MIPI_DSI
 	depends on BACKLIGHT_CLASS_DEVICE
+	select DRM_DISPLAY_DSC_HELPER
+	select DRM_DISPLAY_HELPER
 	help
 	  Say Y here if you want to enable support for LG sw43408 panel.
 	  The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per

-- 
2.39.2

On 2024-05-22 09:25:54, Dmitry Baryshkov wrote:
> This panel driver uses DSC PPS functions and as such depends on the
> DRM_DISPLAY_DP_HELPER. Select this symbol to make required functions

Here and in the title: maybe this is a remnant from v2, but you split out a
DRM_DISPLAY_DSC_HELPER and shouldn't be enabling DP for a DSI panel now.

- Marijn

> available to the driver.
> 
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202404200800.kYsRYyli-lkp@intel.com/
> Fixes: 069a6c0e94f9 ("drm: panel: Add LG sw43408 panel driver")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>  drivers/gpu/drm/panel/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index 4a2f621433ef..3e3f63479544 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -340,6 +340,8 @@ config DRM_PANEL_LG_SW43408
>  	depends on OF
>  	depends on DRM_MIPI_DSI
>  	depends on BACKLIGHT_CLASS_DEVICE
> +	select DRM_DISPLAY_DSC_HELPER
> +	select DRM_DISPLAY_HELPER
>  	help
>  	  Say Y here if you want to enable support for LG sw43408 panel.
>  	  The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per
> 
> -- 
> 2.39.2
>

On 22/05/2024 08:25, Dmitry Baryshkov wrote:
> This panel driver uses DSC PPS functions and as such depends on the
> DRM_DISPLAY_DP_HELPER. Select this symbol to make required functions
> available to the driver.
> 
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202404200800.kYsRYyli-lkp@intel.com/
> Fixes: 069a6c0e94f9 ("drm: panel: Add LG sw43408 panel driver")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>   drivers/gpu/drm/panel/Kconfig | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index 4a2f621433ef..3e3f63479544 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -340,6 +340,8 @@ config DRM_PANEL_LG_SW43408
>   	depends on OF
>   	depends on DRM_MIPI_DSI
>   	depends on BACKLIGHT_CLASS_DEVICE
> +	select DRM_DISPLAY_DSC_HELPER
> +	select DRM_DISPLAY_HELPER
>   	help
>   	  Say Y here if you want to enable support for LG sw43408 panel.
>   	  The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per
> 

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