[PATCH 02/12] drm/i915: Set scaler mode for NV12

Chandra Konduru
2015-05-18T05:12:22Z

This patch sets appropriate scaler mode for NV12 format.
In this mode, skylake scaler does either chroma-upsampling or
chroma-upsampling and resolution scaling.

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
---
drivers/gpu/drm/i915/intel_atomic.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index 7ed8033..13f8a95 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -404,7 +404,10 @@ int intel_atomic_setup_scalers(struct drm_device *dev,
}

/* set scaler mode */
- if (num_scalers_need == 1 && intel_crtc->pipe != PIPE_C) {
+ if (plane_state && plane_state->base.fb &&
+ plane_state->base.fb->pixel_format == DRM_FORMAT_NV12) {
+ scaler_state->scalers[*scaler_id].mode = PS_SCALER_MODE_NV12;
+ } else if (num_scalers_need == 1 && intel_crtc->pipe != PIPE_C) {
/*
* when only 1 scaler is in use on either pipe A or B,
* scaler 0 operates in high quality (HQ) mode.