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| author |   John Barberiz <John.Barberiz@amd.com> | 2019-04-03 19:22:55 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-04-29 14:59:13 -0500 |
| commit | ee13cea962b5ab2d70501f51008c05b394cb322e (patch) | |
| tree | 61e44a6b6e3b556c8ccb8fea4812b6f1b4f481c4 /drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | |
| parent | drm/amd/display: Add hubp_init entry to hubp vtable (diff) | |
| download | linux-dev-ee13cea962b5ab2d70501f51008c05b394cb322e.tar.xz linux-dev-ee13cea962b5ab2d70501f51008c05b394cb322e.zip | |
drm/amd/display: Refactor dp vendor parsing logic to a function
Refactor dp vendor parsing int to a new function, and call it before
get_active_converter_info().
Also, add a flag to skip parsing of Display ID 2.0. Some devices fail on
readind DID2, but we shouldn't fail EDID read because of it. Add this
flag to facilitate the logic.
Signed-off-by: John Barberiz <John.Barberiz@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 47 |
1 files changed, 26 insertions, 21 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 64a309a5e1c9..1ee544a32ebb 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 @@ -2185,6 +2185,30 @@ static int translate_dpcd_max_bpc(enum dpcd_downstream_port_max_bpc bpc) return -1; } +static void read_dp_device_vendor_id(struct dc_link *link) +{ + struct dp_device_vendor_id dp_id; + + /* read IEEE branch device id */ + core_link_read_dpcd( + link, + DP_BRANCH_OUI, + (uint8_t *)&dp_id, + sizeof(dp_id)); + + link->dpcd_caps.branch_dev_id = + (dp_id.ieee_oui[0] << 16) + + (dp_id.ieee_oui[1] << 8) + + dp_id.ieee_oui[2]; + + memmove( + link->dpcd_caps.branch_dev_name, + dp_id.ieee_device_id, + sizeof(dp_id.ieee_device_id)); +} + + + static void get_active_converter_info( uint8_t data, struct dc_link *link) { @@ -2271,27 +2295,6 @@ static void get_active_converter_info( ddc_service_set_dongle_type(link->ddc, link->dpcd_caps.dongle_type); { - struct dp_device_vendor_id dp_id; - - /* read IEEE branch device id */ - core_link_read_dpcd( - link, - DP_BRANCH_OUI, - (uint8_t *)&dp_id, - sizeof(dp_id)); - - link->dpcd_caps.branch_dev_id = - (dp_id.ieee_oui[0] << 16) + - (dp_id.ieee_oui[1] << 8) + - dp_id.ieee_oui[2]; - - memmove( - link->dpcd_caps.branch_dev_name, - dp_id.ieee_device_id, - sizeof(dp_id.ieee_device_id)); - } - - { struct dp_sink_hw_fw_revision dp_hw_fw_revision; core_link_read_dpcd( @@ -2455,6 +2458,8 @@ static bool retrieve_link_cap(struct dc_link *link) ds_port.byte = dpcd_data[DP_DOWNSTREAMPORT_PRESENT - DP_DPCD_REV]; + read_dp_device_vendor_id(link); + get_active_converter_info(ds_port.byte, link); dp_wa_power_up_0010FA(link, dpcd_data, sizeof(dpcd_data)); |