From 1690129d6074c2879ef128c7be07764bb91cfbc1 Mon Sep 17 00:00:00 2001
From: Gopikrishnaiah Anandan <agopik@codeaurora.org>
Date: Tue, 10 Dec 2019 18:24:20 -0800
Subject: [PATCH] drm: msm: handle resolution switch for LTM

DPU configuration should be changed when resolution switch happens at
the layer mixer level for ltm feature. Driver should mark ltm properties
as dirty when resolution switch happens. Change handles dynamic resolution
switch for ltm by marking the properties as dirty.

Change-Id: I5ffc8e74c42da6c2902eb42fd2e3ed1b9f9e3e4c
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>
---
 msm/sde/sde_color_processing.c | 23 +++++++++++++++++++++++
 msm/sde/sde_color_processing.h |  6 ++++++
 msm/sde/sde_crtc.c             |  1 +
 3 files changed, 30 insertions(+)

diff --git a/msm/sde/sde_color_processing.c b/msm/sde/sde_color_processing.c
index 35bf9aca8018..97b8df157c56 100644
--- a/msm/sde/sde_color_processing.c
+++ b/msm/sde/sde_color_processing.c
@@ -3933,3 +3933,26 @@ int sde_cp_ltm_off_event_handler(struct drm_crtc *crtc_drm, bool en,
 {
 	return 0;
 }
+
+void sde_cp_mode_switch_prop_dirty(struct drm_crtc *crtc_drm)
+{
+	struct sde_cp_node *prop_node = NULL, *n = NULL;
+	struct sde_crtc *crtc;
+
+	if (!crtc_drm) {
+		DRM_ERROR("invalid crtc handle");
+		return;
+	}
+	crtc = to_sde_crtc(crtc_drm);
+	mutex_lock(&crtc->crtc_cp_lock);
+	list_for_each_entry_safe(prop_node, n, &crtc->active_list,
+				 active_list) {
+		if (prop_node->feature == SDE_CP_CRTC_DSPP_LTM_INIT ||
+			prop_node->feature == SDE_CP_CRTC_DSPP_LTM_VLUT) {
+			list_del_init(&prop_node->active_list);
+			list_add_tail(&prop_node->dirty_list,
+				&crtc->dirty_list);
+		}
+	}
+	mutex_unlock(&crtc->crtc_cp_lock);
+}
diff --git a/msm/sde/sde_color_processing.h b/msm/sde/sde_color_processing.h
index 9c03e65b8e81..45f7781cb32d 100644
--- a/msm/sde/sde_color_processing.h
+++ b/msm/sde/sde_color_processing.h
@@ -199,4 +199,10 @@ int sde_cp_ltm_wb_pb_interrupt(struct drm_crtc *crtc_drm, bool en,
  */
 int sde_cp_ltm_off_event_handler(struct drm_crtc *crtc_drm, bool en,
 	struct sde_irq_callback *hist_irq);
+
+/**
+ * sde_cp_mode_switch_prop_dirty: API marks mode dependent features as dirty
+ * @crtc_drm: Pointer to crtc.
+ */
+void sde_cp_mode_switch_prop_dirty(struct drm_crtc *crtc_drm);
 #endif /*_SDE_COLOR_PROCESSING_H */
diff --git a/msm/sde/sde_crtc.c b/msm/sde/sde_crtc.c
index 91f711137c5c..e9af5f49810f 100644
--- a/msm/sde/sde_crtc.c
+++ b/msm/sde/sde_crtc.c
@@ -429,6 +429,7 @@ static bool sde_crtc_mode_fixup(struct drm_crtc *crtc,
 {
 	SDE_DEBUG("\n");
 
+	sde_cp_mode_switch_prop_dirty(crtc);
 	if ((msm_is_mode_seamless(adjusted_mode) ||
 	     (msm_is_mode_seamless_vrr(adjusted_mode) ||
 	      msm_is_mode_seamless_dyn_clk(adjusted_mode))) &&