drm/i915/psr: Add enable_source vfunc.

Continue on VLV PSR split with vfunc, let's also create one
for enabling source.

Also since we are touching *_enable_source functions let's
fix a comment with wrong name for vlv's one.

v2: Fix typo on commit message (DK).

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/20170907230041.22978-12-rodrigo.vivi@intel.com

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 4efc2b5..ec70121 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1181,6 +1181,8 @@ struct i915_psr {
        bool colorimetry_support;
        bool alpm;
 
+       void (*enable_source)(struct intel_dp *,
+                             const struct intel_crtc_state *);
        void (*disable_source)(struct intel_dp *,
                               const struct intel_crtc_state *);
        void (*enable_sink)(struct intel_dp *);

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 02c32cc..fdd9e3d 100644 (file)
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -542,14 +542,7 @@ void intel_psr_enable(struct intel_dp *intel_dp,
 
        dev_priv->psr.setup_vsc(intel_dp, crtc_state);
        dev_priv->psr.enable_sink(intel_dp);
-
-       if (HAS_DDI(dev_priv)) {
-               hsw_psr_enable_source(intel_dp, crtc_state);
-
-       } else {
-               vlv_psr_enable_source(intel_dp, crtc_state);
-       }
-
+       dev_priv->psr.enable_source(intel_dp, crtc_state);
        dev_priv->psr.enabled = intel_dp;
 
        if (INTEL_GEN(dev_priv) >= 9) {
@@ -777,8 +770,7 @@ static void intel_psr_exit(struct drm_i915_private *dev_priv)
                 * directly once PSR State 4 that is active with single frame
                 * update can be skipped. PSR_state 5 that is PSR exit then
                 * Hardware is responsible to transition back to PSR_state 1
-                * that is PSR inactive. Same state after
-                * vlv_edp_psr_enable_source.
+                * that is PSR inactive. Same state after vlv_psr_enable_source.
                 */
                val &= ~VLV_EDP_PSR_ACTIVE_ENTRY;
                I915_WRITE(VLV_PSRCTL(pipe), val);
@@ -973,11 +965,13 @@ void intel_psr_init(struct drm_i915_private *dev_priv)
        mutex_init(&dev_priv->psr.lock);
 
        if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+               dev_priv->psr.enable_source = vlv_psr_enable_source;
                dev_priv->psr.disable_source = vlv_psr_disable;
                dev_priv->psr.enable_sink = vlv_psr_enable_sink;
                dev_priv->psr.activate = vlv_psr_activate;
                dev_priv->psr.setup_vsc = vlv_psr_setup_vsc;
        } else {
+               dev_priv->psr.enable_source = hsw_psr_enable_source;
                dev_priv->psr.disable_source = hsw_psr_disable;
                dev_priv->psr.enable_sink = hsw_psr_enable_sink;
                dev_priv->psr.activate = hsw_psr_activate;