Re: [PATCH v7 9/9] drm/mediatek: add support for Mediatek SoC MT2701
From: YT Shen
Date: Mon Sep 12 2016 - 06:17:03 EST
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
>
>