Hi Fabrizio,
On Mon, 19 Nov 2018 13:26:18 +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.
>
> Fixes: 21d808405fe4 ("drm/bridge/sii902x: Fix EDID readback")
> Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
> Link: https://lists.01.org/pipermail/kbuild-all/2018-November/054924.html
I don't see the patch on the dri-devel ML, and it does not appear in
patchwork either :-/.
> ---
> v2->v3:
> * Changed the title
>
> v1->v2:
> * Added "Fixes" tag
>
> 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.
>
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