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drm/amd/display: Disable PSR-SU on Parade 0803 TCON again
When screen brightness is rapidly changed and PSR-SU is enabled the display hangs on panels with this TCON even on the latest DCN 3.1.4 microcode (0x8002a81 at this time). This was disabled previously as commit072030b178
("drm/amd: Disable PSR-SU on Parade 0803 TCON") but reverted as commit1e66a17ce5
("Revert "drm/amd: Disable PSR-SU on Parade 0803 TCON"") in favor of testing for a new enough microcode (commitcd2e31a9ab
("drm/amd/display: Set minimum requirement for using PSR-SU on Phoenix")). As hangs are still happening specifically with this TCON, disable PSR-SU again for it until it can be root caused. Cc: stable@vger.kernel.org Cc: aaron.ma@canonical.com Cc: binli@gnome.org Cc: Marc Rossi <Marc.Rossi@amd.com> Cc: Hamza Mahfooz <Hamza.Mahfooz@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2046131 Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -839,6 +839,8 @@ bool is_psr_su_specific_panel(struct dc_link *link)
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((dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x08) ||
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(dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x07)))
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isPSRSUSupported = false;
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else if (dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x03)
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isPSRSUSupported = false;
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else if (dpcd_caps->psr_info.force_psrsu_cap == 0x1)
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isPSRSUSupported = true;
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}
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