drm/i915: Simplify scaler init during CRTC HW readout

The crtc state starts out being bzero'd, so no need to clear
scaler_users. Also intel_crtc_init_scalers() knows already which
platforms have scalers, so no need for the platform check here.
Similarly intel_crtc_init_scalers() will init scaler_id as required,
so no need to do it here separately.

Cc: Chandra Konduru <chandra.konduru@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170719225057.20131-2-imre.deak@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 6ec5261..6c823cc 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8989,12 +8989,7 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
        u64 power_domain_mask;
        bool active;
 
-       if (INTEL_GEN(dev_priv) >= 9) {
-               intel_crtc_init_scalers(crtc, pipe_config);
-
-               pipe_config->scaler_state.scaler_id = -1;
-               pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX);
-       }
+       intel_crtc_init_scalers(crtc, pipe_config);
 
        power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
        if (!intel_display_power_get_if_enabled(dev_priv, power_domain))