disp: msm: add connector state along with crtc state to detect modeset

During modeset, private mode changed is detected from
msm_display_mode which is present in sde_connector_state.
In the current code, sde_connector_state is found from the
drm_connector variable which will not be valid
during atomic check phase and new connector state is
required here. To handle this, drm_connector_state is passed
along with the drm_crtc_state while detecting
msm_atomic_needs_modeset condition.

Change-Id: I62c162eff6e1c091cb05b3f049a40a0f25b710ba
Signed-off-by: Yashwanth <yvulapu@codeaurora.org>

msm/sde/sde_kms.c

@@ -3584,9 +3584,15 @@ static void _sde_kms_pm_suspend_idle_helper(struct sde_kms *sde_kms,
 	kthread_flush_worker(&priv->pp_event_worker);
 }
 
-struct msm_display_mode *sde_kms_get_msm_mode(struct drm_crtc_state *c_state)
+struct msm_display_mode *sde_kms_get_msm_mode(struct drm_connector_state *conn_state)
 {
-	return sde_crtc_get_msm_mode(c_state);
+	struct sde_connector_state *sde_conn_state;
+
+	if (!conn_state)
+		return NULL;
+
+	sde_conn_state = to_sde_connector_state(conn_state);
+	return &sde_conn_state->msm_mode;
 }
 
 static int sde_kms_pm_suspend(struct device *dev)