Driver features data block has a boolean flag for PSR, use this to decide
whether PSR should be enabled on a platform. The module parameter can
still be used to override this.
Note: The feature currently remains disabled by default for all platforms
irrespective of what VBT says.
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/intel_bios.c | 1 +
drivers/gpu/drm/i915/intel_psr.c | 7 +++++--
3 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 04e27806e581..24c5e4765afd 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1073,6 +1073,7 @@ struct intel_vbt_data {
} edp;
struct {
+ bool enable;
bool full_link;
bool require_aux_wakeup;
int idle_frames;
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 702d3fab97fc..54270bdde100 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -530,6 +530,7 @@ parse_driver_features(struct drm_i915_private *dev_priv,
*/
if (!driver->drrs_enabled)
dev_priv->vbt.drrs_type = DRRS_NOT_SUPPORTED;
+ dev_priv->vbt.psr.enable = driver->psr_enabled;
}
static void
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 6233a322aac5..db27f2faa1de 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -1173,9 +1173,12 @@ void intel_psr_init(struct drm_i915_private *dev_priv)
if (!dev_priv->psr.sink_support)
return;
- /* Per platform default: all disabled. */
- if (i915_modparams.enable_psr == -1)
+ 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;
+ }
/* Set link_standby x link_off defaults */
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
--
2.14.1
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