[v5][PATCH 01/11] drm/i915: Introduce vfunc read_luts() to create hw lut

Swati Sharma
2019-05-04T17:15:53Z

In this patch, a vfunc read_luts() is introduced to create a hw lut
i.e. lut having values read from gamma/degamma registers which will
later be used to compare with sw lut to validate gamma/degamma lut values.

v3: -Rebase
v4: -Renamed intel_get_color_config to intel_color_get_config [Jani]
-Wrapped get_color_config() [Jani]
v5: -Renamed intel_color_get_config() to intel_color_read_luts()
-Renamed get_color_config to read_luts

Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/intel_color.c | 8 ++++++++
drivers/gpu/drm/i915/intel_color.h | 1 +
3 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 1cea98f..1b6d891 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -342,6 +342,7 @@ struct drm_i915_display_funcs {
* involved with the same commit.
*/
void (*load_luts)(const struct intel_crtc_state *crtc_state);
+ void (*read_luts)(struct intel_crtc_state *crtc_state);
};

#define CSR_VERSION(major, minor) ((major) << 16 | (minor))
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index 962db12..0048d8a 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -879,6 +879,14 @@ int intel_color_check(struct intel_crtc_state *crtc_state)
return dev_priv->display.color_check(crtc_state);
}

+void intel_color_read_luts(struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
+
+ if (dev_priv->display.read_luts)
+ dev_priv->display.read_luts(crtc_state);
+}
+
static bool need_plane_update(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state)
{
diff --git a/drivers/gpu/drm/i915/intel_color.h b/drivers/gpu/drm/i915/intel_color.h
index b8a3ce6..fc53de9 100644
--- a/drivers/gpu/drm/i915/intel_color.h
+++ b/drivers/gpu/drm/i915/intel_color.h
@@ -13,5 +13,6 @@
int intel_color_check(struct intel_crtc_state *crtc_state);
void intel_color_commit(const struct intel_crtc_state *crtc_state);
void intel_color_load_luts(const struct intel_crtc_state *crtc_state);
+void intel_color_read_luts(struct intel_crtc_state *crtc_state);

#endif /* __INTEL_COLOR_H__ */