* [PATCH v1] drm/mediatek: add dither 6 setting
@ 2021-07-19 7:52 Yongqiang Niu
2021-07-19 7:52 ` Yongqiang Niu
0 siblings, 1 reply; 2+ messages in thread
From: Yongqiang Niu @ 2021-07-19 7:52 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
Yongqiang Niu (1):
drm/mediatek: add dither 6 setting
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 ++
1 file changed, 2 insertions(+)
mode change 100644 => 100755 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
--
1.8.1.1.dirty
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH v1] drm/mediatek: add dither 6 setting
2021-07-19 7:52 [PATCH v1] drm/mediatek: add dither 6 setting Yongqiang Niu
@ 2021-07-19 7:52 ` Yongqiang Niu
0 siblings, 0 replies; 2+ messages in thread
From: Yongqiang Niu @ 2021-07-19 7:52 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(+)
mode change 100644 => 100755 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
old mode 100644
new mode 100755
index 99cbf44..7dd8e05
--- 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
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