[Intel-gfx] [PATCH 02/11] drm/i915/psr: vfunc for disabling source.

[Rodrigo Vivi]

VLV/CHV has a total different PSR implementation than the
other platforms, so let's start moving that to vfuncs.
Let's start with disable_src one.

v2: Rebased on top of commit d2419ffc10e4 ("drm/i915: Plumb
    crtc_state to PSR enable/disable")

Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
Cc: Vathsala Nagaraju <vathsala.nagaraju at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h  |  3 +++
 drivers/gpu/drm/i915/intel_psr.c | 12 +++++++-----
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 63ca2ffcafef..d24793cdf949 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1180,6 +1180,9 @@ struct i915_psr {
 	bool y_cord_support;
 	bool colorimetry_support;
 	bool alpm;
+
+	void (*disable_source)(struct intel_dp *,
+			       const struct intel_crtc_state *);
 };
 
 enum intel_pch {
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 60a1ece6d4c9..1d2b52e6a6d4 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -685,11 +685,7 @@ void intel_psr_disable(struct intel_dp *intel_dp,
 		return;
 	}
 
-	/* Disable PSR on Source */
-	if (HAS_DDI(dev_priv))
-		hsw_psr_disable(intel_dp, old_crtc_state);
-	else
-		vlv_psr_disable(intel_dp, old_crtc_state);
+	dev_priv->psr.disable_source(intel_dp, old_crtc_state);
 
 	/* Disable PSR on Sink */
 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, 0);
@@ -987,4 +983,10 @@ void intel_psr_init(struct drm_i915_private *dev_priv)
 
 	INIT_DELAYED_WORK(&dev_priv->psr.work, intel_psr_work);
 	mutex_init(&dev_priv->psr.lock);
+
+	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+		dev_priv->psr.disable_source = vlv_psr_disable;
+	} else {
+		dev_priv->psr.disable_source = hsw_psr_disable;
+	}
 }
-- 
2.13.2