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| author |   José Roberto de Souza <jose.souza@intel.com> | 2021-10-19 17:35:58 -0700 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2021-10-20 13:30:22 -0700 |
| commit | 1af10a97b3a629f5f5b361f1870070c1d6e0308b (patch) | |
| tree | 05e4a94e39064963c8c2bcf6430b6b226b72f2fc /drivers/gpu/drm/i915/display/intel_psr.c | |
| parent | drm/i915/display: Rename POWER_DOMAIN_DPLL_DC_OFF to POWER_DOMAIN_DC_OFF (diff) | |
| download | linux-dev-1af10a97b3a629f5f5b361f1870070c1d6e0308b.tar.xz linux-dev-1af10a97b3a629f5f5b361f1870070c1d6e0308b.zip | |
drm/i915/display: Add warn_on in intel_psr_pause()
Right now the only user of psr_pause/resume is intel_cdclk but
additional users will be added in the future and we may need
do reference counting for PSR pause and resume, for now only adding a
warn_on so this cases do not go unnoticed.
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: Jouni Hogander <jouni.hogander@intel.com>
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211020003558.222198-2-jose.souza@intel.com
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 7a205fd5023b..49c2dfbd4055 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1346,6 +1346,7 @@ void intel_psr_disable(struct intel_dp *intel_dp, */ void intel_psr_pause(struct intel_dp *intel_dp) { + struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); struct intel_psr *psr = &intel_dp->psr; if (!CAN_PSR(intel_dp)) @@ -1358,6 +1359,9 @@ void intel_psr_pause(struct intel_dp *intel_dp) return; } + /* If we ever hit this, we will need to add refcount to pause/resume */ + drm_WARN_ON(&dev_priv->drm, psr->paused); + intel_psr_exit(intel_dp); intel_psr_wait_exit_locked(intel_dp); psr->paused = true; |