diff mbox series

[v2,12/17] drm/mediatek: fix gamma size config

Message ID 1607746317-4696-13-git-send-email-yongqiang.niu@mediatek.com (mailing list archive)
State New, archived
Headers show
Series drm/mediatek: add support for mediatek SOC MT8192 | expand

Commit Message

Yongqiang Niu Dec. 12, 2020, 4:11 a.m. UTC
fix gamma size config

Fixes: e0a5d3370245 (drm/mediatek: Add GAMMA engine basic function)
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Chun-Kuang Hu Dec. 14, 2020, 11:40 p.m. UTC | #1
Hi, Yongqiang:

Yongqiang Niu <yongqiang.niu@mediatek.com> 於 2020年12月12日 週六 下午12:13寫道:
>
> fix gamma size config

I would like you to provide more information. The original code works
in mt8173, why do you modify this? The description may be something
like this:

According to data sheet, the width is in bits [31, 16] and height is
in bits [15, 0]. Even though wrong setting may works in some SoC such
as mt8173, but it does not work in mt8192.

Regards,
Chun-Kuang.

>
> Fixes: e0a5d3370245 (drm/mediatek: Add GAMMA engine basic function)
> Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index 00d5687..52b6fc7 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -297,7 +297,7 @@ static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w,
>                              unsigned int h, unsigned int vrefresh,
>                              unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
>  {
> -       mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE);
> +       mtk_ddp_write(cmdq_pkt, w << 16 | h, comp, DISP_GAMMA_SIZE);
>         mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt);
>  }
>
> --
> 1.8.1.1.dirty
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek
Yongqiang Niu Dec. 23, 2020, 1:37 a.m. UTC | #2
On Tue, 2020-12-15 at 07:40 +0800, Chun-Kuang Hu wrote:
> Hi, Yongqiang:
> 
> Yongqiang Niu <yongqiang.niu@mediatek.com> 於 2020年12月12日 週六 下午12:13寫道:
> >
> > fix gamma size config
> 
> I would like you to provide more information. The original code works
> in mt8173, why do you modify this? The description may be something
> like this:
> 
> According to data sheet, the width is in bits [31, 16] and height is
> in bits [15, 0]. Even though wrong setting may works in some SoC such
> as mt8173, but it does not work in mt8192.
> 
> Regards,
> Chun-Kuang.

it still works in mt8192.
just modify this follow data sheet

> 
> >
> > Fixes: e0a5d3370245 (drm/mediatek: Add GAMMA engine basic function)
> > Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > index 00d5687..52b6fc7 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > @@ -297,7 +297,7 @@ static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w,
> >                              unsigned int h, unsigned int vrefresh,
> >                              unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
> >  {
> > -       mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE);
> > +       mtk_ddp_write(cmdq_pkt, w << 16 | h, comp, DISP_GAMMA_SIZE);
> >         mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt);
> >  }
> >
> > --
> > 1.8.1.1.dirty
> > _______________________________________________
> > Linux-mediatek mailing list
> > Linux-mediatek@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-mediatek
Chun-Kuang Hu Dec. 23, 2020, 3:48 p.m. UTC | #3
Hi, Yongqiang:

Yongqiang Niu <yongqiang.niu@mediatek.com> 於 2020年12月23日 週三 上午9:37寫道:
>
> On Tue, 2020-12-15 at 07:40 +0800, Chun-Kuang Hu wrote:
> > Hi, Yongqiang:
> >
> > Yongqiang Niu <yongqiang.niu@mediatek.com> 於 2020年12月12日 週六 下午12:13寫道:
> > >
> > > fix gamma size config
> >
> > I would like you to provide more information. The original code works
> > in mt8173, why do you modify this? The description may be something
> > like this:
> >
> > According to data sheet, the width is in bits [31, 16] and height is
> > in bits [15, 0]. Even though wrong setting may works in some SoC such
> > as mt8173, but it does not work in mt8192.
> >
> > Regards,
> > Chun-Kuang.
>
> it still works in mt8192.
> just modify this follow data sheet

This patch is not strongly related to MT8192, so move this patch out
of this series.

Regards,
Chun-Kuang.

>
> >
> > >
> > > Fixes: e0a5d3370245 (drm/mediatek: Add GAMMA engine basic function)
> > > Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> > > ---
> > >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > > index 00d5687..52b6fc7 100644
> > > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > > @@ -297,7 +297,7 @@ static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w,
> > >                              unsigned int h, unsigned int vrefresh,
> > >                              unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
> > >  {
> > > -       mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE);
> > > +       mtk_ddp_write(cmdq_pkt, w << 16 | h, comp, DISP_GAMMA_SIZE);
> > >         mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt);
> > >  }
> > >
> > > --
> > > 1.8.1.1.dirty
> > > _______________________________________________
> > > Linux-mediatek mailing list
> > > Linux-mediatek@lists.infradead.org
> > > http://lists.infradead.org/mailman/listinfo/linux-mediatek
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 00d5687..52b6fc7 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -297,7 +297,7 @@  static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w,
 			     unsigned int h, unsigned int vrefresh,
 			     unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
 {
-	mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE);
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, comp, DISP_GAMMA_SIZE);
 	mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt);
 }