On Tue, Jan 23, 2024 at 03:41:06PM -0500, Alex Deucher wrote:
From: Wayne Lin wayne.lin@amd.com
link_rate sometime will be changed when DP MST connector hotplug, so pbn_div also need be updated; otherwise, it will mismatch with link_rate, causes no output in external monitor.
This is a backport of commit 9cdef4f72037 ("drm/amd/display: pbn_div need be updated for hotplug event") to 6.1. This fixes a display light up failure on some docking stations.
Cc: stable@vger.kernel.org Tested-by: Daniel Wheeler daniel.wheeler@amd.com Reviewed-by: Jerry Zuo jerry.zuo@amd.com Acked-by: Rodrigo Siqueira rodrigo.siqueira@amd.com Signed-off-by: Wade Wang wade.wang@hp.com Signed-off-by: Wayne Lin wayne.lin@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com (cherry picked from commit 9cdef4f720376ef0fb0febce1ed2377c19e531f9)
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
Now queued up, thanks.
greg k-h