| commit | 2ee7dc497e348eecbb82adbb1ea9e9a7e29fe921 | [log] [tgz] |
|---|---|---|
| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | Tue Dec 13 18:57:44 2016 -0200 |
| committer | Paulo Zanoni <paulo.r.zanoni@intel.com> | Wed Dec 14 18:15:24 2016 -0200 |
| tree | ab21cf0a8749220d4d0c21e6fe0cc1bb6961c219 | |
| parent | 73a798711314b54cbd4fe224e24db92c306a8d8c [diff] [blame] |
drm/i915: disable PSR by default on HSW/BDW
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@vger.kernel.org> # v4.6+
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481662664-18986-1-git-send-email-paulo.r.zanoni@intel.com
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))