Re: [PATCH] leds: tps6131x: add V4L2_FLASH_LED_CLASS dependency

[Randy Dunlap]

On 6/20/25 4:43 AM, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> This driver can optionally use the v4l2_flash infrastructure, but fails to
> link built=in if that is in a loadable module:
> 
> ld.lld-21: error: undefined symbol: v4l2_flash_release
>>>> referenced by leds-tps6131x.c:792 (drivers/leds/flash/leds-tps6131x.c:792)
> 
> Add the usual Kconfig dependency for it, still allowing it to be built when
> CONFIG_V4L2_FLASH_LED_CLASS is disabled.
> 
> Fixes: b338a2ae9b31 ("leds: tps6131x: Add support for Texas Instruments TPS6131X flash LED driver")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

I just made this same patch, so

Reviewed-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Tested-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Thanks.

> ---
>  drivers/leds/flash/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/leds/flash/Kconfig b/drivers/leds/flash/Kconfig
> index 55ca663ca506..5e08102a6784 100644
> --- a/drivers/leds/flash/Kconfig
> +++ b/drivers/leds/flash/Kconfig
> @@ -136,6 +136,7 @@ config LEDS_TPS6131X
>  	tristate "LED support for TI TPS6131x flash LED driver"
>  	depends on I2C && OF
>  	depends on GPIOLIB
> +	depends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS
>  	select REGMAP_I2C
>  	help
>  	  This option enables support for Texas Instruments TPS61310/TPS61311

-- 
~Randy