diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2021-09-09 15:51:56 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2021-09-20 18:45:35 +0300 |
| commit | c78b4a85721f3905ba9baeac4e0bb99a36211d9b (patch) | |
| tree | c4a7290e152f7a946362f52307597535a09843e3 /include/drm | |
| parent | 762520e310258aa69add29261cef106fddf8f915 (diff) | |
| download | linux-c78b4a85721f3905ba9baeac4e0bb99a36211d9b.tar.xz | |
drm/dp: add helper for extracting adjust 128b/132b TX FFE preset
The DP 2.0 128b/132b channel coding uses TX FFE presets instead of
vswing and pre-emphasis.
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4ba129c51aeb01a5f210de7026abe704a554a178.1631191763.git.jani.nikula@intel.com
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_dp_helper.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index f3a61341011d..3ee0b3ffb8a5 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -1494,6 +1494,8 @@ u8 drm_dp_get_adjust_request_voltage(const u8 link_status[DP_LINK_STATUS_SIZE], int lane); u8 drm_dp_get_adjust_request_pre_emphasis(const u8 link_status[DP_LINK_STATUS_SIZE], int lane); +u8 drm_dp_get_adjust_tx_ffe_preset(const u8 link_status[DP_LINK_STATUS_SIZE], + int lane); u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZE], unsigned int lane); |