diff options
| author | Wenjing Liu <Wenjing.Liu@amd.com> | 2018-12-05 12:14:45 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-12-20 12:13:18 -0500 |
| commit | 99b922f9ed6a6313c0d2247cde8aa1e4a0bd67e4 (patch) | |
| tree | af9a0358b78c8d246a3a57ed713535d5e25f7b68 /drivers/gpu | |
| parent | 9136e81e986a7a44bd360a2d2abf19de886feaa8 (diff) | |
| download | linux-99b922f9ed6a6313c0d2247cde8aa1e4a0bd67e4.tar.bz2 | |
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 <Wenjing.Liu@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Abdoulaye Berthe <Abdoulaye.Berthe@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -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; |