From c1c870d16f9d3716ad8a5b256262fe52b5f4f209 Mon Sep 17 00:00:00 2001
From: tbalden <illespal@gmail.com>
Date: Sat, 8 Sep 2018 17:20:46 -0700
Subject: [PATCH] kcal: color control: upon config change force reprocessing

Even when supposedly the rendering is not dirty, force reprocess
of filters.

[YaAlex3: Adapt to aleksaiko's kcal implementation]

Signed-off-by: Yaroslav Furman <yaro330@gmail.com>
Signed-off-by: Panchajanya1999 <panchajanya@azure-dev.live>
---
 .../gpu/drm/msm/sde/sde_color_processing.c    | 29 +++++++++++++++++++
 drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.c    |  4 +++
 drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.h    |  6 ++++
 3 files changed, 39 insertions(+)

diff --git a/drivers/gpu/drm/msm/sde/sde_color_processing.c b/drivers/gpu/drm/msm/sde/sde_color_processing.c
index 7782dffc7e33..e7c3eb90abdb 100644
--- a/drivers/gpu/drm/msm/sde/sde_color_processing.c
+++ b/drivers/gpu/drm/msm/sde/sde_color_processing.c
@@ -26,6 +26,10 @@
 #include "sde_core_irq.h"
 #include "dsi_panel.h"
 
+#ifdef CONFIG_DRM_MSM_KCAL_CTRL
+#include "sde_hw_kcal_ctrl.h"
+#endif
+
 struct sde_cp_node {
 	u32 property_id;
 	u32 prop_flags;
@@ -1025,6 +1029,12 @@ void sde_cp_crtc_install_properties(struct drm_crtc *crtc)
 
 }
 
+#ifdef CONFIG_DRM_MSM_KCAL_CTRL
+static struct drm_crtc *g_pcc_crtc;
+static struct drm_property *g_pcc_property;
+static uint64_t g_pcc_val;
+#endif
+
 int sde_cp_crtc_set_property(struct drm_crtc *crtc,
 				struct drm_property *property,
 				uint64_t val)
@@ -1058,6 +1068,15 @@ int sde_cp_crtc_set_property(struct drm_crtc *crtc,
 		goto exit;
 	}
 
+#ifdef CONFIG_DRM_MSM_KCAL_CTRL
+	if (prop_node->feature == SDE_CP_CRTC_DSPP_PCC) {
+		pr_info("%s pcc kad kcal\n",__func__);
+		g_pcc_crtc = crtc;
+		g_pcc_property = property;
+		g_pcc_val = val;
+	}
+#endif
+
 	/**
 	 * sde_crtc is virtual ensure that hardware has been attached to the
 	 * crtc. Check LM and dspp counts based on whether feature is a
@@ -1118,6 +1137,16 @@ int sde_cp_crtc_set_property(struct drm_crtc *crtc,
 	return ret;
 }
 
+#ifdef CONFIG_DRM_MSM_KCAL_CTRL
+void kcal_force_update(void) {
+	if (g_pcc_crtc) {
+		pr_info("%s force kad kcal\n",__func__);
+		sde_cp_crtc_set_property(g_pcc_crtc, g_pcc_property, g_pcc_val);
+	}
+}
+EXPORT_SYMBOL(kcal_force_update);
+#endif
+
 int sde_cp_crtc_get_property(struct drm_crtc *crtc,
 			     struct drm_property *property, uint64_t *val)
 {
diff --git a/drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.c b/drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.c
index 9382f04a667c..a722000dc6b6 100644
--- a/drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.c
+++ b/drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.c
@@ -91,6 +91,8 @@ static ssize_t store_##node(struct device *dev,			\
 									\
 	kcal_lut_data.object = val;					\
 									\
+	kcal_force_update();                                            \
+									\
 	return count;							\
 }									\
 									\
@@ -125,6 +127,8 @@ static ssize_t store_kcal(struct device *dev,
 	pcc->green = max(kcal_g, kcal_lut_data.min_value);
 	pcc->blue  = max(kcal_b, kcal_lut_data.min_value);
 
+	kcal_force_update();
+
 	return count;
 }
 
diff --git a/drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.h b/drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.h
index 4bc8d6ded6c4..dd8c716efb1e 100644
--- a/drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.h
+++ b/drivers/gpu/drm/msm/sde/sde_hw_kcal_ctrl.h
@@ -63,6 +63,12 @@ struct drm_msm_pa_hsic sde_hw_kcal_hsic_struct(void);
  * @plane: index of pcc color plane.
  */
 void sde_hw_kcal_pcc_adjust(u32 *data, int plane);
+
+/**
+ * kcal_force_update() - force reprocessing on config change.
+ */
+void kcal_force_update(void);
+
 #else
 static inline struct sde_hw_kcal sde_hw_kcal_get(void)
 {