[PATCH] Revert "drm/amd/display: To modify the condition in indicating branch device"
Alex Deucher
alexander.deucher at amd.com
Wed Mar 24 01:24:18 UTC 2021
This breaks HDMI audio.
This reverts commit 9413b23fadad3861f5afd626ac44ef83ad8068ab.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1536
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Cc: Martin Tsai <martin.tsai at amd.com>
Cc: Bindu Ramamurthy <bindu.r at amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 484d96f78ade..18adf4ea6044 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -3192,7 +3192,13 @@ static void get_active_converter_info(
}
/* DPCD 0x5 bit 0 = 1, it indicate it's branch device */
- link->dpcd_caps.is_branch_dev = ds_port.fields.PORT_PRESENT;
+ if (ds_port.fields.PORT_TYPE == DOWNSTREAM_DP) {
+ link->dpcd_caps.is_branch_dev = false;
+ }
+
+ else {
+ link->dpcd_caps.is_branch_dev = ds_port.fields.PORT_PRESENT;
+ }
switch (ds_port.fields.PORT_TYPE) {
case DOWNSTREAM_VGA:
--
2.30.2
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