drm/i915/psr: vfunc for disabling source.

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@ffwll.ch>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170907230041.22978-3-rodrigo.vivi@intel.com

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 63ca2ff..d24793c 100644 (file)
--- 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 60a1ece..1d2b52e 100644 (file)
--- 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;
+       }
 }