Hi Fabrizio,
The prefix should be "drm/bridge/sii902x:" and I'd prefer a short
explanation of what is problematic in the subject rather than "Fix
0-day build error". Maybe something like
"drm/bridge/sii902x: Add missing dependency on I2C_MUX"
On Mon, 19 Nov 2018 12:44:23 +0000
Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> wrote:
> kbuild test robot reports:
>
> >> ERROR: "i2c_mux_add_adapter" [drivers/gpu/drm/bridge/sii902x.ko]
> undefined!
> >> ERROR: "i2c_mux_alloc" [drivers/gpu/drm/bridge/sii902x.ko]
> undefined!
> >> ERROR: "i2c_mux_del_adapters" [drivers/gpu/drm/bridge/sii902x.ko]
> undefined!
>
> Quite obviously the driver depends on I2C_MUX, but adding a "depends on"
> introduces a recursive dependency, therefore this patch selects I2C_MUX
> instead.
>
You need a fixes tag here:
Fixes: 21d808405fe4 ("drm/bridge/sii902x: Fix EDID readback")
Thanks,
Boris
> Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
> Link: https://lists.01.org/pipermail/kbuild-all/2018-November/054924.html
> ---
> drivers/gpu/drm/bridge/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
> index 9eeb8ef..2fee47b 100644
> --- a/drivers/gpu/drm/bridge/Kconfig
> +++ b/drivers/gpu/drm/bridge/Kconfig
> @@ -95,6 +95,7 @@ config DRM_SII902X
> depends on OF
> select DRM_KMS_HELPER
> select REGMAP_I2C
> + select I2C_MUX
> ---help---
> Silicon Image sii902x bridge chip driver.
>
