diff options
| author |   José Roberto de Souza <jose.souza@intel.com> | 2019-08-23 01:20:44 -0700 |
|---|---|---|
| committer |   Lucas De Marchi <lucas.demarchi@intel.com> | 2019-08-27 08:47:24 -0700 |
| commit | 9c722e17c1b91d7dc5ec77cb4fcaaa6b30653fe3 (patch) | |
| tree | 8104218253da20f80ed036b674df2d84f9371bfe | |
| parent | drm: Add for_each_oldnew_intel_crtc_in_state_reverse() (diff) | |
drm/i915: Disable pipes in reverse order
Disable CRTC/pipes in reverse order because some features (MST in
TGL+) requires master and slave relationship between pipes, so it
should always pick the lowest pipe as master as it will be enabled
first and disable in the reverse order so the master will be the last
one to be disabled.
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190823082055.5992-13-lucas.demarchi@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index ea2915dde6ab..a9f8be2cd364 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -13908,7 +13908,15 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) if (state->modeset) wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_MODESET); - for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { + /* + * Disable CRTC/pipes in reverse order because some features(MST in + * TGL+) requires master and slave relationship between pipes, so it + * should always pick the lowest pipe as master as it will be enabled + * first and disable in the reverse order so the master will be the + * last one to be disabled. + */ + for_each_oldnew_intel_crtc_in_state_reverse(state, crtc, old_crtc_state, + new_crtc_state, i) { if (needs_modeset(new_crtc_state) || new_crtc_state->update_pipe) { |