| Message ID | 20210511042043.592802-4-bjorn.andersson@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | drm/msm/dp: Add support for SC8180x eDP controller | expand |
On 2021-05-10 21:20, Bjorn Andersson wrote: > 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: Abhinav Kumar <abhinavk@codeaurora.org> > --- > drivers/gpu/drm/msm/dp/dp_catalog.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c > b/drivers/gpu/drm/msm/dp/dp_catalog.c > index a0449a2867e4..e3996eef5518 100644 > --- a/drivers/gpu/drm/msm/dp/dp_catalog.c > +++ b/drivers/gpu/drm/msm/dp/dp_catalog.c > @@ -707,6 +707,7 @@ 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; > }
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c index a0449a2867e4..e3996eef5518 100644 --- a/drivers/gpu/drm/msm/dp/dp_catalog.c +++ b/drivers/gpu/drm/msm/dp/dp_catalog.c @@ -707,6 +707,7 @@ 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; }
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> --- drivers/gpu/drm/msm/dp/dp_catalog.c | 1 + 1 file changed, 1 insertion(+) -- 2.29.2