From: Shashank Sharma <shashank.sha...@intel.com>

Color manager's plane level correction properties are
registered as plane property. So its required to have a
.set_property function in plane functions.

This patch adds:
1. A .set_property function for intel_plane, intel_plane_set_property
   which checks if a plane property is of type color property, it
   calls color manager's plane level set_property handler function.
2. A intel_clrmgr_set_plane_property, which will extract the data
   to be set, and then pass it to appropriate set_property function

Signed-off-by: Shashank Sharma <shashank.sha...@intel.com>
---
 drivers/gpu/drm/i915/intel_clrmgr.c | 47 +++++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_clrmgr.h | 11 +++++++++
 drivers/gpu/drm/i915/intel_sprite.c | 41 ++++++++++++++++++++++++++++++++
 3 files changed, 99 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_clrmgr.c 
b/drivers/gpu/drm/i915/intel_clrmgr.c
index eb18ee2..d0d952b 100644
--- a/drivers/gpu/drm/i915/intel_clrmgr.c
+++ b/drivers/gpu/drm/i915/intel_clrmgr.c
@@ -654,6 +654,53 @@ intel_attach_pipe_color_correction(struct intel_crtc 
*intel_crtc)
        kfree(features);
 }
 
+bool intel_clrmgr_set_plane_property(struct intel_plane *intel_plane,
+               struct clrmgr_regd_prop *cp, uint64_t value)
+{
+       bool ret = false;
+       uint64_t *data;
+       struct drm_property *property;
+
+       /* Sanity */
+       if (!cp->property) {
+               DRM_ERROR("NULL input to set_property\n");
+               return false;
+       }
+
+       property = cp->property;
+       DRM_DEBUG_DRIVER("Property %s len:%d\n",
+               cp->property->name, cp->property->num_values);
+       data = kmalloc(sizeof(uint64_t) * (property->num_values), GFP_KERNEL);
+       if (!data) {
+               DRM_ERROR("Out of memory\n");
+               return false;
+       }
+
+       if (copy_from_user((void *)data, (const void __user *)value,
+                       property->num_values * sizeof(uint64_t))) {
+               DRM_ERROR("Failed to copy all data\n");
+               ret = false;
+               goto free_and_return;
+       }
+
+       /* Now do the actual work */
+       if (cp->set_property) {
+               if (!cp->set_property((void *)intel_plane, cp, data)) {
+                       DRM_ERROR("Set property for %s failed\n",
+                               cp->property->name);
+                       ret = false;
+               } else {
+                       ret = true;
+                       cp->enabled = true;
+                       DRM_DEBUG_DRIVER("Set property %s successful\n",
+                               cp->property->name);
+               }
+       }
+free_and_return:
+       kfree(data);
+       return ret;
+}
+
 bool intel_clrmgr_set_pipe_property(struct intel_crtc *intel_crtc,
                struct clrmgr_regd_prop *cp, uint64_t value)
 {
diff --git a/drivers/gpu/drm/i915/intel_clrmgr.h 
b/drivers/gpu/drm/i915/intel_clrmgr.h
index d962585..c1de823 100644
--- a/drivers/gpu/drm/i915/intel_clrmgr.h
+++ b/drivers/gpu/drm/i915/intel_clrmgr.h
@@ -212,6 +212,17 @@ bool intel_clrmgr_set_csc(void *crtc,
        struct clrmgr_regd_prop *csc, u64 *data);
 
 /*
+* intel_clrmgr_set_plane_property
+* Set value of a registered plane property
+* input:
+* - intel_plane: the plane with which the property is attached
+* - cp: registered color property
+* - value: value to be set
+*/
+bool intel_clrmgr_set_plane_property(struct intel_plane *intel_plane,
+               struct clrmgr_regd_prop *cp, uint64_t value);
+
+/*
 * intel_clrmgr_set_pipe_property
 * Set value of a registered CRTC property
 * input:
diff --git a/drivers/gpu/drm/i915/intel_sprite.c 
b/drivers/gpu/drm/i915/intel_sprite.c
index 168c665..affb429 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -36,6 +36,7 @@
 #include "intel_drv.h"
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
+#include "intel_clrmgr.h"
 
 static int usecs_to_scanlines(const struct drm_display_mode *mode, int usecs)
 {
@@ -1180,6 +1181,45 @@ out_unlock:
        return ret;
 }
 
+int intel_plane_set_property(struct drm_plane *plane,
+       struct drm_property *property, uint64_t val)
+{
+       int ret = 0;
+       int count = 0;
+       struct clrmgr_regd_prop *cp;
+       struct intel_plane *intel_plane = to_intel_plane(plane);
+       struct clrmgr_status *status = intel_plane->color_status;
+
+       DRM_DEBUG_DRIVER("\n");
+
+       /* Is this color property ?*/
+       if (!status) {
+               DRM_DEBUG_DRIVER("Color manager not initialized\n");
+               ret = -1;
+               goto skip_color;
+       }
+
+       /* Color manager property */
+       while (count < status->no_of_properties) {
+               cp = status->cp[count++];
+               if (property == cp->property) {
+                       /* Found it, now set it */
+                       if (intel_clrmgr_set_plane_property(intel_plane,
+                               cp, val)) {
+                               DRM_DEBUG_DRIVER("Set property %s successful\n",
+                                       property->name);
+                               return 0;
+                       } else {
+                               DRM_ERROR("Set CRTC property %s failed\n",
+                                       property->name);
+                               return -1;
+                       }
+               }
+       }
+skip_color:
+       return ret;
+}
+
 void intel_plane_restore(struct drm_plane *plane)
 {
        struct intel_plane *intel_plane = to_intel_plane(plane);
@@ -1206,6 +1246,7 @@ static const struct drm_plane_funcs intel_plane_funcs = {
        .update_plane = intel_update_plane,
        .disable_plane = intel_disable_plane,
        .destroy = intel_destroy_plane,
+       .set_property = intel_plane_set_property
 };
 
 static uint32_t ilk_plane_formats[] = {
-- 
1.9.1

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