[PATCH v3 13/15] drm/i915/vrr: Restructure VRR enablement bit

[Mitul Golani]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Restructure bit for VRR enablement.

--v2:
- Separate multiple enablement from one patch.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
---
 drivers/gpu/drm/i915/display/intel_vrr.c | 25 ++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
index 54b91c2a0a87..86b858222b6e 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.c
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -603,6 +603,7 @@ void intel_vrr_enable(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
 	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+	u32 ctl;
 
 	if (!crtc_state->vrr.enable)
 		return;
@@ -617,16 +618,11 @@ void intel_vrr_enable(const struct intel_crtc_state *crtc_state)
 	intel_de_write(display, TRANS_PUSH(display, cpu_transcoder),
 		       TRANS_PUSH_EN);
 
-	if (!intel_vrr_always_use_vrr_tg(display)) {
-		if (crtc_state->cmrr.enable) {
-			intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
-				       VRR_CTL_VRR_ENABLE | VRR_CTL_CMRR_ENABLE |
-				       trans_vrr_ctl(crtc_state));
-		} else {
-			intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
-				       VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state));
-		}
-	}
+	ctl = VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state);
+	if (crtc_state->cmrr.enable)
+		ctl |= VRR_CTL_CMRR_ENABLE;
+
+	intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder), ctl);
 
 	if (HAS_VRR_DC_BALANCE(display) && crtc_state->vrr.dc_balance.enable) {
 		intel_de_write(display, PIPEDMC_DCB_VMIN(display, cpu_transcoder),
@@ -650,6 +646,7 @@ void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state)
 {
 	struct intel_display *display = to_intel_display(old_crtc_state);
 	enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder;
+	u32 ctl;
 
 	if (!old_crtc_state->vrr.enable)
 		return;
@@ -665,9 +662,13 @@ void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state)
 		intel_de_write(display, PIPEDMC_DCB_VBLANK(display, cpu_transcoder), 0);
 	}
 
+	ctl = trans_vrr_ctl(old_crtc_state);
+	if (intel_vrr_always_use_vrr_tg(display))
+		ctl |= VRR_CTL_VRR_ENABLE;
+
+	intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder), ctl);
+
 	if (!intel_vrr_always_use_vrr_tg(display)) {
-		intel_de_write(display, TRANS_VRR_CTL(display, cpu_transcoder),
-			       trans_vrr_ctl(old_crtc_state));
 		intel_de_wait_for_clear(display,
 					TRANS_VRR_STATUS(display, cpu_transcoder),
 					VRR_STATUS_VRR_EN_LIVE, 1000);
-- 
2.48.1