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| author | Dave Airlie <airlied@redhat.com> | 2022-03-04 13:41:52 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2022-03-04 13:41:57 +1000 |
| commit | c9e9ce0b6f85ac330adee912745048a0af5f315d (patch) | |
| tree | ac5475f48d638f63fc8c1fee1c5d48d2a6d64c33 /drivers/gpu/drm/tegra | |
| parent | f298a2b94c7bca7f664b99d374cf3e5d79bf9327 (diff) | |
| parent | 701920ca9822eb63b420b3bcb627f2c1ec759903 (diff) | |
| download | linux-c9e9ce0b6f85ac330adee912745048a0af5f315d.tar.bz2 | |
Merge tag 'drm-misc-next-2022-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.18:
UAPI Changes:
Cross-subsystem Changes:
- Improve performance of some fbdev ops, in some cases up to 6x faster.
Core Changes:
- Some small DP fixes.
- Find panels in subnodes of OF devices, and add of_get_drm_panel_display_mode
to retrieve mode.
- Add drm_object_property_get_default_value and use it for resetting
zpos in plane state reset, removing the need for individual drivers
to do it.
- Same for color encoding and color range props.
- Update panic handling todo doc.
- Add todo that format conversion helpers should be sped up similarly to fbdev ops.
Driver Changes:
- Add panel orientation property to simpledrm for quirked panels.
- Assorted small fixes to tiny/repaper, nouveau, stm, omap, ssd130x.
- Add crc support to stm/ltdc.
- Add MIPI DBI compatible SPI driver
- Assorted small fixes to tiny panels and bridge drivers.
- Add AST2600 support to aspeed.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/48fabd78-ade9-f80b-c724-13726c7be69e@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/tegra')
| -rw-r--r-- | drivers/gpu/drm/tegra/dp.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/dp.c b/drivers/gpu/drm/tegra/dp.c index e4369e5b2943..7295975e5733 100644 --- a/drivers/gpu/drm/tegra/dp.c +++ b/drivers/gpu/drm/tegra/dp.c @@ -549,6 +549,15 @@ static void drm_dp_link_get_adjustments(struct drm_dp_link *link, { struct drm_dp_link_train_set *adjust = &link->train.adjust; unsigned int i; + u8 post_cursor; + int err; + + err = drm_dp_dpcd_read(link->aux, DP_ADJUST_REQUEST_POST_CURSOR2, + &post_cursor, sizeof(post_cursor)); + if (err < 0) { + DRM_ERROR("failed to read post_cursor2: %d\n", err); + post_cursor = 0; + } for (i = 0; i < link->lanes; i++) { adjust->voltage_swing[i] = @@ -560,7 +569,7 @@ static void drm_dp_link_get_adjustments(struct drm_dp_link *link, DP_TRAIN_PRE_EMPHASIS_SHIFT; adjust->post_cursor[i] = - drm_dp_get_adjust_request_post_cursor(status, i); + (post_cursor >> (i << 1)) & 0x3; } } |