[PATCH 3/3] drm/panel: add backlight dependency for sitronix-st7789v

[Hoegeun Kwon]

On 04/20/2017 03:03 AM, Arnd Bergmann wrote:
> Without the dependency, we run into a link error:
>
> drivers/gpu/drm/panel/panel-sitronix-st7789v.o: In function `st7789v_probe':
> panel-sitronix-st7789v.c:(.text.st7789v_probe+0xc0): undefined reference to `of_find_backlight_by_node'
>
> Fixes: 7142afb3a186 ("drm/panel: Add driver for sitronix ST7789V LCD controller")
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>

Reviewed-by: Hoegeun Kwon <hoegeun.kwon at samsung.com>

Best regards,
Hoegeun

> ---
>   drivers/gpu/drm/panel/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index 6eb9774284df..04d068177e16 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -101,6 +101,7 @@ config DRM_PANEL_SHARP_LS043T1LE01
>   config DRM_PANEL_SITRONIX_ST7789V
>   	tristate "Sitronix ST7789V panel"
>   	depends on OF && SPI
> +	depends on BACKLIGHT_CLASS_DEVICE
>   	help
>   	  Say Y here if you want to enable support for the Sitronix
>   	  ST7789V controller for 240x320 LCD panels

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