drm/msm/dp: correct 1.62G link rate at dp_catalog_ctrl_config_msa()
authorKuogee Hsieh <quic_khsieh@quicinc.com>
Wed, 24 Aug 2022 20:15:50 +0000 (13:15 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 26 Oct 2022 10:34:55 +0000 (12:34 +0200)
[ 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@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/499328/
Link: https://lore.kernel.org/r/1661372150-3764-1-git-send-email-quic_khsieh@quicinc.com
[DB: rewrapped commit message]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/msm/dp/dp_catalog.c

index cc2bb829532962fa0f6c233f1d3c48b7d925dd98..9ef24ced6586d0dc9a788425dc54c8531c9be860 100644 (file)
@@ -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;