We have new tests and fixes in place since the feature was last
disabled. Try again for gen-9+ hardware and enable only PSR1 by default as
a first step.
v2: Remove typo fix and comment improvements (Rodrigo)
Cc: Jani Nikula <jani.nik...@intel.com>
Cc: Jose Roberto de Souza <jose.so...@intel.com>
Cc: Paulo Zanoni <paulo.r.zan...@intel.com>
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
References: commit 2ee7dc497e34 ("drm/i915: disable PSR by default on HSW/BDW")
References: commit dcb2e993f3c0 ("Revert "drm/i915: Enable PSR by default on
Valleyview and Cherryview."")
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>
---
drivers/gpu/drm/i915/intel_psr.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index b6838b525502..5a2660ad8203 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -71,6 +71,10 @@ static bool psr_global_enabled(u32 debug)
static bool intel_psr2_enabled(struct drm_i915_private *dev_priv,
const struct intel_crtc_state *crtc_state)
{
+ /* Disable PSR2 by default for all platforms */
+ if (i915_modparams.enable_psr == -1)
+ return false;
+
switch (dev_priv->psr.debug & I915_PSR_DEBUG_MODE_MASK) {
case I915_PSR_DEBUG_FORCE_PSR1:
return false;
@@ -1065,12 +1069,9 @@ void intel_psr_init(struct drm_i915_private *dev_priv)
if (!dev_priv->psr.sink_support)
return;
- if (i915_modparams.enable_psr == -1) {
- i915_modparams.enable_psr = dev_priv->vbt.psr.enable;
-
- /* Per platform default: all disabled. */
- i915_modparams.enable_psr = 0;
- }
+ if (i915_modparams.enable_psr == -1)
+ if (INTEL_GEN(dev_priv) < 9 || !dev_priv->vbt.psr.enable)
+ i915_modparams.enable_psr = 0;
/* Set link_standby x link_off defaults */
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
--
2.17.1
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