Matthew Schwartz 382bd6a792 drm/amd/display: Don't program BLNDGAM_MEM_PWR_FORCE when CM low-power is disabled on DCN30 ... Before commit 33056a97ae ("drm/amd/display: Remove double checks for `debug.enable_mem_low_power.bits.cm`"), dpp3_program_blnd_lut(NULL) checked the low-power debug flag before calling dpp3_power_on_blnd_lut(false). After commit 33056a97ae ("drm/amd/display: Remove double checks for `debug.enable_mem_low_power.bits.cm`"), dpp3_program_blnd_lut(NULL) unconditionally calls dpp3_power_on_blnd_lut(false). The BLNDGAM power helper writes BLNDGAM_MEM_PWR_FORCE when CM low-power is disabled, causing immediate SRAM power toggles instead of deferring at vupdate. This can disrupt atomic color/LUT sequencing during transitions between direct scanout and composition within gamescope's DRM backend on Steam Deck OLED. To fix this, leave the BLNDGAM power state unchanged when low-power is disabled, matching dpp3_power_on_hdr3dlut and dpp3_power_on_shaper. Fixes: 33056a97ae ("drm/amd/display: Remove double checks for `debug.enable_mem_low_power.bits.cm`") Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 13ff4f63fc) Cc: stable@vger.kernel.org		2025-10-28 11:01:44 -04:00
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dcn10	drm/amd/display: Clear the CUR_ENABLE register on DCN314 w/out DPP PG	2025-08-29 10:22:52 -04:00
dcn20	drm/amd/display: Move SPL to a new path	2025-02-12 21:03:01 -05:00
dcn30	drm/amd/display: Don't program BLNDGAM_MEM_PWR_FORCE when CM low-power is disabled on DCN30	2025-10-28 11:01:44 -04:00
dcn32	drm/amd/display: Move SPL to a new path	2025-02-12 21:03:01 -05:00
dcn35	drm/amd/display: Update IPS sequential_ono requirement checks	2025-05-05 12:54:12 -04:00
dcn201	drm/amd/display: Remove unnecessary files	2024-04-30 09:52:21 -04:00
dcn401	drm/amd/display: Refactor DPP enum for backwards compatibility	2025-08-18 16:57:03 -04:00
Makefile	drm/amd/display: Add misc DC changes for DCN401	2024-04-26 17:23:34 -04:00