drm/i915/dsc: rename functions for consistency

Use intel_dsc_ prefix. No functional changes.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191104141439.26312-4-jani.nikula@intel.com

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

@@ -501,7 +501,7 @@ intel_dsc_power_domain(const struct intel_crtc_state *crtc_state)
 		return POWER_DOMAIN_TRANSCODER(cpu_transcoder);
 }
 
-static void intel_configure_pps_for_dsc_encoder(struct intel_encoder *encoder,
+static void intel_dsc_pps_configure(struct intel_encoder *encoder,
 				    const struct intel_crtc_state *crtc_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
@@ -901,7 +901,7 @@ static void intel_configure_pps_for_dsc_encoder(struct intel_encoder *encoder,
 	}
 }
 
-static void intel_dp_write_dsc_pps_sdp(struct intel_encoder *encoder,
+static void intel_dsc_dp_pps_write(struct intel_encoder *encoder,
 				   const struct intel_crtc_state *crtc_state)
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
@@ -937,9 +937,9 @@ void intel_dsc_enable(struct intel_encoder *encoder,
 	intel_display_power_get(dev_priv,
 				intel_dsc_power_domain(crtc_state));
 
-	intel_configure_pps_for_dsc_encoder(encoder, crtc_state);
+	intel_dsc_pps_configure(encoder, crtc_state);
 
-	intel_dp_write_dsc_pps_sdp(encoder, crtc_state);
+	intel_dsc_dp_pps_write(encoder, crtc_state);
 
 	if (crtc_state->cpu_transcoder == TRANSCODER_EDP) {
 		dss_ctl1_reg = DSS_CTL1;