[PATCH v3] drm/bridge/sii902x: Add missing dependency on I2C_MUX

[Fabrizio Castro]

Hello Boris,

> From: Boris Brezillon <boris.brezillon at bootlin.com>
> Sent: 19 November 2018 16:55
> Subject: Re: [PATCH v3] drm/bridge/sii902x: Add missing dependency on I2C_MUX
>
> Hi Fabrizio,
>
> On Mon, 19 Nov 2018 13:26:18 +0000
> Fabrizio Castro <fabrizio.castro at bp.renesas.com> 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 at bp.renesas.com>
> > 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 :-/.

Mmm, my email address may have been blocked somehow by the dri-devel ML,
I can't think of anything else that could get in the way, as the dri-devel ML was
in copy in every email. Maybe that's because I am not subscribed? I have started
the subscription process, once I am subscribed I'll try and repost.

Thanks,
Fab

>
> > ---
> > 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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