diff options
| author | Wenjing Liu <[email protected]> | 2018-12-05 12:14:45 -0500 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2018-12-20 12:13:18 -0500 |
| commit | 99b922f9ed6a6313c0d2247cde8aa1e4a0bd67e4 (patch) | |
| tree | af9a0358b78c8d246a3a57ed713535d5e25f7b68 | |
| parent | 9136e81e986a7a44bd360a2d2abf19de886feaa8 (diff) | |
drm/amd/display: validate extended dongle caps
[why]
Some dongle doesn't have a valid extended dongle caps,
but we still set the extended dongle caps to be valid.
This causes validation fails for all timing.
[how]
If no dp_hdmi_max_pixel_clk is provided,
don't use extended dongle caps.
Signed-off-by: Wenjing Liu <[email protected]>
Reviewed-by: Aric Cyr <[email protected]>
Reviewed-by: Jun Lei <[email protected]>
Acked-by: Abdoulaye Berthe <[email protected]>
Acked-by: Leo Li <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 3 |
1 files changed, 2 insertions, 1 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 0999102e7130..0caacb60b02f 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 @@ -2247,7 +2247,8 @@ static void get_active_converter_info( translate_dpcd_max_bpc( hdmi_color_caps.bits.MAX_BITS_PER_COLOR_COMPONENT); - link->dpcd_caps.dongle_caps.extendedCapValid = true; + if (link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk != 0) + link->dpcd_caps.dongle_caps.extendedCapValid = true; } break; |