Some users are suffering with PSR2 issues that are under debug or issues that were root caused to panel firmware, to make life of those users easier here adding a option to disable PSR1 with kernel parameter.
Using the same enable_psr that is current used to turn PSR1 and PSR2 off or on and adding a new value to only disable PSR2. The previous valid values did not had their behavior changed. Link: https://gitlab.freedesktop.org/drm/intel/-/issues/4951 Cc: Jouni Högander <jouni.hogan...@intel.com> Signed-off-by: José Roberto de Souza <jose.so...@intel.com> --- drivers/gpu/drm/i915/display/intel_psr.c | 4 ++++ drivers/gpu/drm/i915/i915_params.c | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 2e0b092f4b6be..fc6b684bb7bec 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -100,11 +100,15 @@ static bool psr_global_enabled(struct intel_dp *intel_dp) static bool psr2_global_enabled(struct intel_dp *intel_dp) { + struct drm_i915_private *i915 = dp_to_i915(intel_dp); + switch (intel_dp->psr.debug & I915_PSR_DEBUG_MODE_MASK) { case I915_PSR_DEBUG_DISABLE: case I915_PSR_DEBUG_FORCE_PSR1: return false; default: + if (i915->params.enable_psr == 2) + return false; return true; } } diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index eea355c2fc28a..a9b97e6eb3df0 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -94,7 +94,7 @@ i915_param_named_unsafe(enable_hangcheck, bool, 0400, i915_param_named_unsafe(enable_psr, int, 0400, "Enable PSR " - "(0=disabled, 1=enabled) " + "(0=disabled, 1=enable up to PSR2 if supported, 2=enable up to PSR1) " "Default: -1 (use per-chip default)"); i915_param_named(psr_safest_params, bool, 0400, -- 2.35.1
