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* [PATCH] drm/i915/psr: Check if VBT says PSR can be enabled.
@ 2018-05-09  0:35 Dhinakaran Pandiyan
  2018-05-09  0:43 ` ✗ Fi.CI.SPARSE: warning for " Patchwork
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: Dhinakaran Pandiyan @ 2018-05-09  0:35 UTC (permalink / raw)
  To: intel-gfx; +Cc: Dhinakaran Pandiyan, Rodrigo Vivi

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@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
---
 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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^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2018-05-09 13:59 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-05-09  0:35 [PATCH] drm/i915/psr: Check if VBT says PSR can be enabled Dhinakaran Pandiyan
2018-05-09  0:43 ` ✗ Fi.CI.SPARSE: warning for " Patchwork
2018-05-09  1:03 ` ✓ Fi.CI.BAT: success " Patchwork
2018-05-09  4:37 ` ✓ Fi.CI.IGT: " Patchwork
2018-05-09 12:29 ` [PATCH] " Rodrigo Vivi
2018-05-09 13:59   ` Rodrigo Vivi

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