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Date:   Fri, 21 Aug 2020 21:20:37 -0400
From:   Qian Cai <cai@....pw>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     kieran.bingham+renesas@...asonboard.com, airlied@...ux.ie,
        daniel@...ll.ch, dri-devel@...ts.freedesktop.org,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] drm/rcar-du: DRM_RCAR_WRITEBACK depends on DRM

On Mon, Jun 08, 2020 at 06:16:22AM +0300, Laurent Pinchart wrote:
> Hi Qian,
> 
> I forgot to mention, I think the subject line should be
> 
> drm/rcar-du: Make DRM_RCAR_WRITEBACK depend on DRM_RCAR_DU
> 
> Could you please let me know if you're OK with these two small changes ?

Laurent, this patch is still not in the latest linux-next. Can you take a look?

> 
> On Mon, Jun 08, 2020 at 06:14:43AM +0300, Laurent Pinchart wrote:
> > On Sun, Jun 07, 2020 at 10:53:40PM -0400, Qian Cai wrote:
> > > There is no need to select DRM_RCAR_WRITEBACK if DRM=n which just make
> > 
> > s/DRM=n/DRM_RCAR_DU=n/ here.
> > 
> > > the generated .config a bit ugly.
> > > 
> > >  # ARM devices
> > >  #
> > >  # end of ARM devices
> > > 
> > >  CONFIG_DRM_RCAR_WRITEBACK=y
> > > 
> > >  #
> > >  # Frame buffer Devices
> > > 
> > > Let DRM_RCAR_WRITEBACK depend on DRM_RCAR_DU instead.
> > > 
> > > Signed-off-by: Qian Cai <cai@....pw>
> > 
> > Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> > 
> > No need to submit a v3 if you agree with the above change, I'll fix it
> > in my tree.
> > 
> > > ---
> > >  drivers/gpu/drm/rcar-du/Kconfig | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/drivers/gpu/drm/rcar-du/Kconfig b/drivers/gpu/drm/rcar-du/Kconfig
> > > index 0919f1f159a4..3304b41f5611 100644
> > > --- a/drivers/gpu/drm/rcar-du/Kconfig
> > > +++ b/drivers/gpu/drm/rcar-du/Kconfig
> > > @@ -48,3 +48,4 @@ config DRM_RCAR_VSP
> > >  config DRM_RCAR_WRITEBACK
> > >  	bool
> > >  	default y if ARM64
> > > +	depends on DRM_RCAR_DU
> 
> -- 
> Regards,
> 
> Laurent Pinchart

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