[Intel-gfx] [PATCH 16/31] drm/i915: Fix DRRS initialization.

[Rodrigo Vivi]

With Fastboot by default we don't necessarily do a
full modeset enabling the primary plane.
So DRRS enable call that was in that path wasn't being
called anymore.

So, let's relly on post atomic modeset path
and on has_drrs to enabled DRRS when we judge necessary.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 11 +++++++++++
 drivers/gpu/drm/i915/intel_drv.h     |  2 ++
 2 files changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f67e2ee..6647bfe 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4681,6 +4681,9 @@ static void intel_post_plane_update(struct intel_crtc *crtc)
 	if (crtc->atomic.update_wm_post)
 		intel_update_watermarks(&crtc->base);
 
+	if (atomic->enable_drrs)
+		intel_drrs_enable(crtc);
+
 	if (atomic->update_fbc)
 		intel_fbc_update(dev_priv);
 
@@ -4702,6 +4705,9 @@ static void intel_pre_plane_update(struct intel_crtc *crtc)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc_atomic_commit *atomic = &crtc->atomic;
 
+	if (crtc->atomic.disable_drrs)
+		intel_drrs_disable(crtc);
+
 	if (atomic->disable_fbc)
 		intel_fbc_disable_crtc(crtc);
 
@@ -11565,10 +11571,15 @@ int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
 			 */
 			intel_crtc->atomic.disable_ips = true;
 
+			intel_crtc->atomic.disable_drrs = true;
+
 			intel_crtc->atomic.disable_fbc = true;
 
 			intel_crtc->atomic.disable_psr = true;
 		}
+		if (visible && intel_crtc->config->has_drrs)
+			intel_crtc->atomic.enable_drrs = true;
+
 		if (visible && intel_crtc->config->ips_ready)
 			intel_crtc->atomic.enable_ips = true;
 
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 48f461f..bf5e77c 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -529,6 +529,7 @@ struct intel_mmio_flip {
  */
 struct intel_crtc_atomic_commit {
 	/* Sleepable operations to perform before commit */
+	bool disable_drrs;
 	bool disable_fbc;
 	bool disable_ips;
 	bool disable_psr;
@@ -539,6 +540,7 @@ struct intel_crtc_atomic_commit {
 	/* Sleepable operations to perform after commit */
 	unsigned fb_bits;
 	bool wait_vblank;
+	bool enable_drrs;
 	bool update_fbc;
 	bool enable_ips;
 	bool enable_psr;
-- 
2.4.3