[PATCH 13/20] drm/i915: use current scaler state during readout_hw_state.

Chandra Konduru
2015-04-02T03:00:37Z

During readout_hw_state, rebuild crtc scaler_state from hw state:
- crtc scaler id
- scaler users
- scaling ratios

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

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index aae4a22..834ea46 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8756,6 +8756,11 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,

intel_get_pipe_timings(crtc, pipe_config);

+ if (INTEL_INFO(dev)->gen >= 9) {
+ skl_init_scalers(dev, crtc->pipe, pipe_config);
+ skl_update_scaling_ratio(dev, pipe_config);
+ }
+
pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
if (intel_display_power_is_enabled(dev_priv, pfit_domain)) {
if (IS_SKYLAKE(dev))