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drm/amd/display: To modify the condition in indicating branch device 

[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@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Martin Tsai 2020-12-02 20:22:13 +08:00 committed by Alex Deucher
parent c2d61e3091
commit 9413b23fad
1 changed files with 1 additions and 7 deletions
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8
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
View File

@ -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: