drm/i915/display: Remove a redundant function argument from intel_psr_enable_source()

It removes intel_crtc_state from function argument of
intel_psr_enable_source() in order to use intel_psr_enable_source()
without intel_crtc_state on other psr internal functions.
And we can get cpu_trancoder from intel_psr, therefore we don't need to
pass intel_crtc_state to this function.

Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210526000656.3060314-4-matthew.d.roper@intel.com

drivers/gpu/drm/i915/display/intel_psr.c

@@ -990,11 +990,10 @@ static void intel_psr_activate(struct intel_dp *intel_dp)
 	intel_dp->psr.active = true;
 }
 
-static void intel_psr_enable_source(struct intel_dp *intel_dp,
-				    const struct intel_crtc_state *crtc_state)
+static void intel_psr_enable_source(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
-	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+	enum transcoder cpu_transcoder = intel_dp->psr.transcoder;
 	u32 mask;
 
 	/* Only HSW and BDW have PSR AUX registers that need to be setup. SKL+
@@ -1112,7 +1111,7 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp,
 				     &intel_dp->psr.vsc);
 	intel_write_dp_vsc_sdp(encoder, crtc_state, &intel_dp->psr.vsc);
 	intel_psr_enable_sink(intel_dp);
-	intel_psr_enable_source(intel_dp, crtc_state);
+	intel_psr_enable_source(intel_dp);
 	intel_dp->psr.enabled = true;
 
 	intel_psr_activate(intel_dp);