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[08/10] drm/i915/psr: enable psr2 for y cordinate panels

Message ID 1483075524-25189-9-git-send-email-vathsala.nagaraju@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

vathsala nagaraju Dec. 30, 2016, 5:25 a.m. UTC 
Psr2 is enabled only for y cordinate panels.Once GTC (global time code)
is implemented,this restriction is removed so that psr2
can work on panels without y cordinate support.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Signed-off-by: Patil Deepti <deepti.patil@intel.com>
---
 drivers/gpu/drm/i915/intel_psr.c | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 19cd4d7..ca3ef3e 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -495,6 +495,15 @@  void intel_psr_enable(struct intel_dp *intel_dp)
 		return;
 	}
 
+	/*
+	 * FIXME:enable psr2 only for y-cordinate psr2 panels
+	 * After gtc implementation , remove this restriction.
+	 */
+	if (!dev_priv->psr.y_cord_support &&  dev_priv->psr.psr2_support) {
+		DRM_DEBUG_KMS("PSR2 disabled, panel does not support Y coordinate\n");
+		return;
+	}
+
 	mutex_lock(&dev_priv->psr.lock);
 	if (dev_priv->psr.enabled) {
 		DRM_DEBUG_KMS("PSR already in use\n");