We've been ignoring the poor bugzilla reporters that say PSR causes
system lockups and all other sorts of problems. The earliest bug
report is from April, so I think we can use the "revert the offending
commit if no fixes are presented within 8 months" rule here.
Fixes: 9b58e352b463 ("drm/i915: Enable PSR by default on Haswell and Broadwell.")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97602
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97515
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96736
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96704
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96569
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95176
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94985
Cc: <stable@xxxxxxxxxxxxxxx> # v4.6+
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Cc: Jim Bride <jim.bride@xxxxxxxxxxxxxxx>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_psr.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index d5f8d03..6aca8ff 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -823,13 +823,9 @@ void intel_psr_init(struct drm_i915_private *dev_priv)
dev_priv->psr_mmio_base = IS_HASWELL(dev_priv) ?
HSW_EDP_PSR_BASE : BDW_EDP_PSR_BASE;
- /* Per platform default */
- if (i915.enable_psr == -1) {
- if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
- i915.enable_psr = 1;
- else
- i915.enable_psr = 0;
- }
+ /* Per platform default: all disabled. */
+ if (i915.enable_psr == -1)
+ i915.enable_psr = 0;
/* Set link_standby x link_off defaults */
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
--
2.7.4
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