diff options
| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2021-07-22 05:44:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-04 13:46:43 +0300 |
| commit | 645a1d3bef5f149f853a5815c437b16b290583e0 (patch) | |
| tree | 4ad0b7b2c7a7656b89dd2afd977f03bb7a33521d | |
| parent | 4a6841921cc818ebaa10a74b799867d149de2d1e (diff) | |
| download | linux-645a1d3bef5f149f853a5815c437b16b290583e0.tar.xz | |
drm/msm/dp: Initialize the INTF_CONFIG register
[ Upstream commit f9a39932fa54b6421e751ada7a285da809146421 ]
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: c943b4948b58 ("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>
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_catalog.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c index 4963bfe6a472..aeca8b2ac5c6 100644 --- a/drivers/gpu/drm/msm/dp/dp_catalog.c +++ b/drivers/gpu/drm/msm/dp/dp_catalog.c @@ -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; } |