3 messages, 2 authors, 2021-07-20 · open the first message on its own page
From: Yongqiang Niu <hidden>
Date: 2021-07-19 09:00:16
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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
From: Yongqiang Niu <hidden>
Date: 2021-07-19 09:00:12
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 <redacted> --- 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
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From: Hsin-Yi Wang <hidden>
Date: 2021-07-20 05:03:07
On Mon, Jul 19, 2021 at 4:24 PM Yongqiang Niu [off-list ref] 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 <redacted> --- 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
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