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drm/msm/dp: Initialize the INTF_CONFIG register

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[ Upstream commit f9a39932fa ]

Some bootloaders set the widebus enable bit in the INTF_CONFIG register,
but configuration of widebus isn't yet supported ensure that the
register has a known value, with widebus disabled.

Fixes: c943b4948b ("drm/msm/dp: add displayPort driver support")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210722024434.3313167-1-bjorn.andersson@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Bjorn Andersson 2021-07-21 19:44:34 -07:00 committed by Greg Kroah-Hartman
parent 4a6841921c
commit 645a1d3bef
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/msm/dp/dp_catalog.c
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@ -740,6 +740,7 @@ int dp_catalog_panel_timing_cfg(struct dp_catalog *dp_catalog)
dp_write_link(catalog, REG_DP_HSYNC_VSYNC_WIDTH_POLARITY,
dp_catalog->width_blanking);
dp_write_link(catalog, REG_DP_ACTIVE_HOR_VER, dp_catalog->dp_active);
dp_write_p0(catalog, MMSS_DP_INTF_CONFIG, 0);
return 0;
}