Re: [PATCH v7 3/7] drm: rcar-du: Add support for CMM

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Hi Laurent,

On Thu, Nov 28, 2019 at 9:09 AM Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> On Thu, Nov 28, 2019 at 08:56:14AM +0100, Geert Uytterhoeven wrote:
> > On Wed, Nov 13, 2019 at 11:04 AM Jacopo Mondi <jacopo+renesas@xxxxxxxxxx> wrote:
> > > Add a driver for the R-Car Display Unit Color Correction Module.
> > > In most of Gen3 SoCs, each DU output channel is provided with a CMM unit
> > > to perform image enhancement and color correction.
> > >
> > > Add support for CMM through a driver that supports configuration of
> > > the 1-dimensional LUT table. More advanced CMM features will be
> > > implemented on top of this initial one.
> > >
> > > Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> > > Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
> > > Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
> >
> > > --- a/drivers/gpu/drm/rcar-du/Kconfig
> > > +++ b/drivers/gpu/drm/rcar-du/Kconfig
> > > @@ -5,6 +5,7 @@ config DRM_RCAR_DU
> > >         depends on ARM || ARM64
> > >         depends on ARCH_RENESAS || COMPILE_TEST
> > >         imply DRM_RCAR_LVDS
> > > +       imply DRM_RCAR_CMM
> > >         select DRM_KMS_HELPER
> > >         select DRM_KMS_CMA_HELPER
> > >         select DRM_GEM_CMA_HELPER
> > > @@ -13,6 +14,13 @@ config DRM_RCAR_DU
> > >           Choose this option if you have an R-Car chipset.
> > >           If M is selected the module will be called rcar-du-drm.
> > >
> > > +config DRM_RCAR_CMM
> > > +       tristate "R-Car DU Color Management Module (CMM) Support"
> > > +       depends on DRM && OF
> > > +       depends on DRM_RCAR_DU
> >
> > DRM_RCAR_DU already depends on DRM && OF, so the line above
> > can be removed.
>
> I've sent a pull request already. Can we address this on top ? Or is it
> worth a separate patch, should we wait until we have to touch this and
> then fix it in a "while at it" fashion ?

Sure. "while at it" is fine for me.  It's not blocker.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds



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