kernel/drivers/gpu/drm/amd/display/dc/dce110, branch linux-4.17.y

drm/amd/display: Fix dim display on DCE11

2018-08-03T05:47:51Z

[ Upstream commit 84ffa80123f56f80145dc638f21dfcbedda5610d ] Before programming the input gamma, check that we're not using the identity correction. Signed-off-by: Leo (Sunpeng) Li Reviewed-by: Anthony Koo Acked-by: Harry Wentland Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Fix regamma not affecting full-intensity color values

2018-04-12T18:56:21Z

Hardware understands the regamma LUT as a piecewise linear function, with points spaced exponentially along the range. We previously programmed the LUT for range [2^-10, 2^0). This causes (normalized) color values of 1 (=2^0) to miss the programmed LUT, and fall onto the end region. For DCE, the end region is extrapolated using a single (base, slope) pair, using the max y-value from the last point in the curve as base. This presents a problem, since this value affects all three color channels. Scaling down the intensity of say - the blue regamma curve - will not affect it's end region. This is especially noticiable when using RedShift. It scales down the blue and green channels, but leaves full-intensity colors unshifted. Therefore, extend the range to cover [2^-10, 2^1) by programming another hardware segment, containing only one point. That way, we won't be hitting the end region. Note that things are a bit different for DCN, since the end region can be set per-channel. Signed-off-by: Leo (Sunpeng) Li Reviewed-by: Krunoslav Kovac Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Fix FBC text console corruption

2018-04-12T18:55:55Z

Signed-off-by: Roman Li Reviewed-by: Charlene Liu Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: fix brightness level after resume from suspend

2018-04-11T18:17:25Z

Adding missing call to cache current backlight values. Otherwise the brightness resets to default value on resume. Signed-off-by: Roman Li Reviewed-by: Charlene Liu Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Fixed dim around 1sec when resume from S3 (v2)

2018-03-14T21:01:14Z

root cause: DMCU try to perform a smoothness brightness change.Incorrect initial brightness level causes the 1 sec dim. Change: Cache brightness level in stream, and clear it when edp backlight on. If brightness level in stream is 0, set brightness with ramp value is 0. DMCU will set the brightness without smoothness transition. v2: squash in null pointer fix (Harry) Signed-off-by: Yongqiang Sun Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Use actual TG instance instead of pipe instance

2018-03-14T20:16:36Z

Signed-off-by: Jerry (Fangzhi) Zuo Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Check for HW blocks in HWSS, rather than DC core for cursor

2018-03-14T20:16:36Z

Signed-off-by: Harry Wentland Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: fix check condition for edp power control

2018-03-14T20:08:44Z

Per discussion with VBIOS team, the orginal check is not correct in all cases on latest VBIOS. Additional check is needed. This change should maintain old behaviour on older VBIOS. Signed-off-by: Eric Yang Reviewed-by: Charlene Liu Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Remove 300Mhz minimum disp clk limit.

2018-03-14T20:08:43Z

300Mhz disp clk limit was a workaround that was fixed in SMU and is no longer needed. Signed-off-by: Yongqiang Sun Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: validate plane format on primary plane

2018-03-07T21:11:36Z

In dce110, the plane configuration is such that plane 0 or the primary plane should be rendered with only RGB data. This patch adds the validation to ensure that no video data is rendered on plane 0. Signed-off-by: Shirish S Reviewed-by: Tony Cheng Signed-off-by: Alex Deucher