Re: [PATCH v7 9/9] drm/mediatek: add support for Mediatek SoC MT2701

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Hi CK,

On Wed, 2016-09-07 at 13:37 +0800, CK Hu wrote:
> Hi, YT:
> 
> On Fri, 2016-09-02 at 19:24 +0800, YT Shen wrote:
> > This patch add support for the Mediatek MT2701 DISP subsystem.
> > There is only one OVL engine in MT2701.
> > 
> > Signed-off-by: YT Shen <yt.shen@xxxxxxxxxxxx>
> 
> [snip...]
> 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > index 4b4e449..465819b 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > @@ -112,6 +112,7 @@ struct mtk_ddp_comp_match {
> >  
> >  static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
> >  	[DDP_COMPONENT_AAL]	= { MTK_DISP_AAL,	0, NULL },
> > +	[DDP_COMPONENT_BLS]	= { MTK_DISP_PWM,	0, NULL },
> 
> I think BLS is different than PWM, so this statement should be
> 
> [DDP_COMPONENT_BLS] = { MTK_DISP_BLS, 0, NULL };
The BLS module actually is a multifunction device, one of them is the
PWM function.  We only upstream PWM function [1] now, and it is
accepted.  When there are real use case (gamma function), we will update
this part.  What do you think?

Regards,
yt.shen

[1] https://patchwork.kernel.org/patch/9223001/

> 
> 
> >  	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, &ddp_color },
> >  	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, &ddp_color },
> >  	[DDP_COMPONENT_DPI0]	= { MTK_DPI,		0, NULL },
> 
> Regards,
> CK
> 
> 


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