LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
* [PATCH v2] drm/mediatek: add dither 6 setting
@ 2021-07-19  8:24 Yongqiang Niu
  2021-07-19  8:24 ` Yongqiang Niu
  0 siblings, 1 reply; 3+ messages in thread
From: Yongqiang Niu @ 2021-07-19  8:24 UTC (permalink / raw)
  To: Chun-Kuang Hu
  Cc: Rob Herring, Matthias Brugger, Philipp Zabel, David Airlie,
	Daniel Vetter, Jassi Brar, Yongqiang Niu, Fabien Parent,
	Dennis YC Hsieh, devicetree, linux-arm-kernel, linux-mediatek,
	linux-kernel, dri-devel, Project_Global_Chrome_Upstream_Group,
	Hsin-Yi Wang

Change since v1:
- -x

Yongqiang Niu (1):
  drm/mediatek: add dither 6 setting

 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
1.8.1.1.dirty


^ permalink raw reply	[flat|nested] 3+ messages in thread

* [PATCH v2] drm/mediatek: add dither 6 setting
  2021-07-19  8:24 [PATCH v2] drm/mediatek: add dither 6 setting Yongqiang Niu
@ 2021-07-19  8:24 ` Yongqiang Niu
  2021-07-20  5:00   ` Hsin-Yi Wang
  0 siblings, 1 reply; 3+ messages in thread
From: Yongqiang Niu @ 2021-07-19  8:24 UTC (permalink / raw)
  To: Chun-Kuang Hu
  Cc: Rob Herring, Matthias Brugger, Philipp Zabel, David Airlie,
	Daniel Vetter, Jassi Brar, Yongqiang Niu, Fabien Parent,
	Dennis YC Hsieh, devicetree, linux-arm-kernel, linux-mediatek,
	linux-kernel, dri-devel, Project_Global_Chrome_Upstream_Group,
	Hsin-Yi Wang

in the first version dither patch
https://patchwork.kernel.org/project/linux-mediatek/patch/1553667561-25447-13-git-send-email-yongqiang.niu@mediatek.com/
dither 6 setting is included in that patch
bit 1 is lfsr_en( "Enables LFSR-type dithering"), need enable
bit 2 is rdither_en(Enables running order dithering), need disable
in this issue
https://partnerissuetracker.corp.google.com/issues/190643544

dither 6 setting missed in set dither common patch
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c?h=next-20210430&id=a6b7c98afdcad0f149010ae028b24f2d0dc24cdb

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 99cbf44..7dd8e05 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -26,6 +26,7 @@
 #define DISP_OD_CFG				0x0020
 #define DISP_OD_SIZE				0x0030
 #define DISP_DITHER_5				0x0114
+#define DISP_DITHER_6				0x0118
 #define DISP_DITHER_7				0x011c
 #define DISP_DITHER_15				0x013c
 #define DISP_DITHER_16				0x0140
@@ -135,6 +136,7 @@ void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg,
 
 	if (bpc >= MTK_MIN_BPC) {
 		mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_DITHER_5);
+		mtk_ddp_write(cmdq_pkt, 0x3002, cmdq_reg, regs, DISP_DITHER_6);
 		mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_DITHER_7);
 		mtk_ddp_write(cmdq_pkt,
 			      DITHER_LSB_ERR_SHIFT_R(MTK_MAX_BPC - bpc) |
-- 
1.8.1.1.dirty


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH v2] drm/mediatek: add dither 6 setting
  2021-07-19  8:24 ` Yongqiang Niu
@ 2021-07-20  5:00   ` Hsin-Yi Wang
  0 siblings, 0 replies; 3+ messages in thread
From: Hsin-Yi Wang @ 2021-07-20  5:00 UTC (permalink / raw)
  To: Yongqiang Niu
  Cc: Chun-Kuang Hu, Rob Herring, Matthias Brugger, Philipp Zabel,
	David Airlie, Daniel Vetter, Jassi Brar, Fabien Parent,
	Dennis YC Hsieh, Devicetree List,
	moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE,
	moderated list:ARM/Mediatek SoC support, lkml, dri-devel,
	Project_Global_Chrome_Upstream_Group

On Mon, Jul 19, 2021 at 4:24 PM Yongqiang Niu
<yongqiang.niu@mediatek.com> wrote:
>
> in the first version dither patch
> https://patchwork.kernel.org/project/linux-mediatek/patch/1553667561-25447-13-git-send-email-yongqiang.niu@mediatek.com/
> dither 6 setting is included in that patch
I think you don't need to link the first version here.

> bit 1 is lfsr_en( "Enables LFSR-type dithering"), need enable
> bit 2 is rdither_en(Enables running order dithering), need disable
> in this issue
> https://partnerissuetracker.corp.google.com/issues/190643544
Can you describe the issue in text instead of pasting a link that is
not accessible to everyone?

>
> dither 6 setting missed in set dither common patch
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c?h=next-20210430&id=a6b7c98afdcad0f149010ae028b24f2d0dc24cdb

If this is fixing a previous patch, please add Fixes: tag instead of
pasting a link here.


>
> Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index 99cbf44..7dd8e05 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -26,6 +26,7 @@
>  #define DISP_OD_CFG                            0x0020
>  #define DISP_OD_SIZE                           0x0030
>  #define DISP_DITHER_5                          0x0114
> +#define DISP_DITHER_6                          0x0118
>  #define DISP_DITHER_7                          0x011c
>  #define DISP_DITHER_15                         0x013c
>  #define DISP_DITHER_16                         0x0140
> @@ -135,6 +136,7 @@ void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg,
>
>         if (bpc >= MTK_MIN_BPC) {
>                 mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_DITHER_5);
> +               mtk_ddp_write(cmdq_pkt, 0x3002, cmdq_reg, regs, DISP_DITHER_6);
>                 mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_DITHER_7);
>                 mtk_ddp_write(cmdq_pkt,
>                               DITHER_LSB_ERR_SHIFT_R(MTK_MAX_BPC - bpc) |
> --
> 1.8.1.1.dirty
>

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-07-20  5:03 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-19  8:24 [PATCH v2] drm/mediatek: add dither 6 setting Yongqiang Niu
2021-07-19  8:24 ` Yongqiang Niu
2021-07-20  5:00   ` Hsin-Yi Wang

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).