Re: [Freedreno] [PATCH 3/4] drm/msm/dp: Initialize the INTF_CONFIG register

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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@xxxxxxxxxx>
Reviewed-by: Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx>
---
 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;
 }



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