disp: msm: sde: update cached encoder mask if required

When a new connector is added or removed an a crtc because
of clone mode enable and disable update cached encoder mask.
Currently since cached encoder mask is not updated properly
vblank frame counter is returning wb encoder frame counter
right after clone mode disable on wb encoder.

Change-Id: Ieff9dfbf0c7df3688fb1b6f9d3f3614345b494c2
Signed-off-by: Prabhanjan Kandula <[email protected]>

msm/sde/sde_crtc.c

@@ -3615,6 +3615,10 @@ static void sde_crtc_atomic_begin(struct drm_crtc *crtc,
 
 	test_and_clear_bit(SDE_CRTC_DIRTY_UIDLE, &sde_crtc->revalidate_mask);
 
+	/* update cached_encoder_mask if new conn is added or removed */
+	if (crtc->state->connectors_changed)
+		sde_crtc->cached_encoder_mask = crtc->state->encoder_mask;
+
 	/*
 	 * Since CP properties use AXI buffer to program the
 	 * HW, check if context bank is in attached state,
@@ -5510,6 +5514,8 @@ static u32 sde_crtc_get_vblank_counter(struct drm_crtc *crtc)
 {
 	struct drm_encoder *encoder;
 	struct sde_crtc *sde_crtc;
+	bool is_built_in;
+	u32 vblank_cnt;
 
 	if (!crtc)
 		return 0;
@@ -5520,7 +5526,14 @@ static u32 sde_crtc_get_vblank_counter(struct drm_crtc *crtc)
 		if (sde_encoder_in_clone_mode(encoder))
 			continue;
 
-		return sde_encoder_get_frame_count(encoder);
+		is_built_in = sde_encoder_is_built_in_display(encoder);
+		vblank_cnt = sde_encoder_get_frame_count(encoder);
+
+		SDE_EVT32(DRMID(crtc), DRMID(encoder), is_built_in, vblank_cnt);
+		SDE_DEBUG("crtc:%d enc:%d is_built_in:%d vblank_cnt:%d\n",
+				DRMID(crtc), DRMID(encoder), is_built_in, vblank_cnt);
+
+		return vblank_cnt;
 	}
 
 	return 0;