From: Chandra Konduru <chandra.kond...@intel.com>
This patch sets appropriate scaler mode for NV12 format.
In this mode, skylake scaler does either chroma-upsampling or
chroma-upsampling and resolution scaling
v2: Review comments from Ville addressed
NV12 case to be checked first for setting
the scaler
v3: Rebased (me)
v4: Rebased (me)
v5: Missed the Tested-by/Reviewed-by in the previous series
Adding the same to commit message in this version.
v6: Rebased (me)
v7: Rebased (me)
v8: Rebased (me)
Restricting the NV12 change for scaler to BXT and KBL
in this series.
v9: Rebased (me)
Tested-by: Clinton Taylor <clinton.a.tay...@intel.com>
Reviewed-by: Clinton Taylor <clinton.a.tay...@intel.com>
Signed-off-by: Chandra Konduru <chandra.kond...@intel.com>
Signed-off-by: Nabendu Maiti <nabendu.bikash.ma...@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srini...@intel.com>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_atomic.c | 8 +++++++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f773f22..5f00b47 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6656,6 +6656,7 @@ enum {
#define PS_SCALER_MODE_MASK (3 << 28)
#define PS_SCALER_MODE_DYN (0 << 28)
#define PS_SCALER_MODE_HQ (1 << 28)
+#define PS_SCALER_MODE_NV12 (2 << 28)
#define PS_PLANE_SEL_MASK (7 << 25)
#define PS_PLANE_SEL(plane) (((plane) + 1) << 25)
#define PS_FILTER_MASK (3 << 23)
diff --git a/drivers/gpu/drm/i915/intel_atomic.c
b/drivers/gpu/drm/i915/intel_atomic.c
index d452c32..ecba7c7 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -327,7 +327,13 @@ int intel_atomic_setup_scalers(struct drm_i915_private
*dev_priv,
}
/* set scaler mode */
- if (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) {
+ if ((IS_BROXTON(dev_priv) || IS_KABYLAKE(dev_priv)) &&
+ plane_state && plane_state->base.fb &&
+ plane_state->base.fb->format->format ==
+ DRM_FORMAT_NV12) {
+ scaler_state->scalers[*scaler_id].mode =
+ PS_SCALER_MODE_NV12;
+ } else if (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) {
scaler_state->scalers[*scaler_id].mode = 0;
} else if (num_scalers_need == 1 && intel_crtc->pipe != PIPE_C)
{
/*
--
2.7.4
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