Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/i915/psr: Disable PSR on update_m_n and update_lrr
PSR/PR parameters might change based on update_m_n or update_lrr. Disable
on update_m_n and update_lrr to ensure proper parameters are taken into use
on next PSR enable in intel_psr_post_plane_update.
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/15771
Fixes: 2bc98c6f97af ("drm/i915/alpm: Compute ALPM parameters into crtc_state->alpm_state")
Cc: <stable@vger.kernel.org> # v6.19+
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260312083710.1593781-2-jouni.hogander@intel.com
+2
+2
drivers/gpu/drm/i915/display/intel_psr.c
+2
drivers/gpu/drm/i915/display/intel_psr.c
···
3112
3112
* - Display WA #1136: skl, bxt
3113
3113
*/
3114
3114
if (intel_crtc_needs_modeset(new_crtc_state) ||
3115
+
new_crtc_state->update_m_n ||
3116
+
new_crtc_state->update_lrr ||
3115
3117
!new_crtc_state->has_psr ||
3116
3118
!new_crtc_state->active_planes ||
3117
3119
new_crtc_state->has_sel_update != psr->sel_update_enabled ||