[PATCH 5.15 235/530] drm/msm/dp: correct 1.62G link rate at dp_catalog_ctrl_config_msa()
From: Greg Kroah-Hartman
Date: Mon Oct 24 2022 - 10:17:36 EST
From: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>
[ Upstream commit aa0bff10af1c4b92e6b56e3e1b7f81c660d3ba78 ]
At current implementation there is an extra 0 at 1.62G link rate which
cause no correct pixel_div selected for 1.62G link rate to calculate
mvid and nvid. This patch delete the extra 0 to have mvid and nvid be
calculated correctly.
Changes in v2:
-- fix Fixes tag's text
Changes in v3:
-- fix misspelling of "Reviewed-by"
Fixes: 937f941ca06f ("drm/msm/dp: Use qmp phy for DP PLL and PHY")
Signed-off-by: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/499328/
Link: https://lore.kernel.org/r/1661372150-3764-1-git-send-email-quic_khsieh@xxxxxxxxxxx
[DB: rewrapped commit message]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c
index cc2bb8295329..9ef24ced6586 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -437,7 +437,7 @@ void dp_catalog_ctrl_config_msa(struct dp_catalog *dp_catalog,
if (rate == link_rate_hbr3)
pixel_div = 6;
- else if (rate == 1620000 || rate == 270000)
+ else if (rate == 162000 || rate == 270000)
pixel_div = 2;
else if (rate == link_rate_hbr2)
pixel_div = 4;
--
2.35.1