[PATCH 04/14] drm/amd/display: To modify the condition in indicating branch device

Bindu Ramamurthy bindu.r at amd.com
Fri Dec 18 22:28:54 UTC 2020


From: Martin Tsai <martin.tsai at amd.com>

[why]
The sink count change HPD_IRQ will be ignored if the branch device has only
DP DFP.

[how]
To remove the port type restriction.

Signed-off-by: Martin Tsai <martin.tsai at amd.com>
Acked-by: Bindu Ramamurthy <bindu.r at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

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 6b11d4af54af..2fc12239b22c 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
@@ -3173,13 +3173,7 @@ static void get_active_converter_info(
 	}
 
 	/* DPCD 0x5 bit 0 = 1, it indicate it's branch device */
-	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;
-	}
+	link->dpcd_caps.is_branch_dev = ds_port.fields.PORT_PRESENT;
 
 	switch (ds_port.fields.PORT_TYPE) {
 	case DOWNSTREAM_VGA:
-- 
2.25.1



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