[Intel-gfx] [PATCH 05/11] [v4] drm/i915: Extract i965_get_color_config()

[Swati Sharma]

v4: -No need to initialize *blob [Jani]
    -Removed right shifts [Jani]
    -Dropped dev local var [Jani]

Signed-off-by: Swati Sharma <swati2.sharma at intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h    |  3 +++
 drivers/gpu/drm/i915/intel_color.c | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c9ae61e..1d0575f 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3582,6 +3582,9 @@ enum i915_power_well_id {
 #define _PALETTE_A		0xa000
 #define _PALETTE_B		0xa800
 #define _CHV_PALETTE_C		0xc000
+#define PALETTE_RED_MASK        REG_GENMASK(23, 16)
+#define PALETTE_GREEN_MASK      REG_GENMASK(15, 8)
+#define PALETTE_BLUE_MASK       REG_GENMASK(7, 0)
 #define PALETTE(pipe, i)	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + \
 				      _PICK((pipe), _PALETTE_A,		\
 					    _PALETTE_B, _CHV_PALETTE_C) + \
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index 818e062..8b8dac6 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -1315,6 +1315,43 @@ static void cherryview_get_color_config(struct intel_crtc_state *crtc_state)
 		cherryview_get_gamma_config(crtc_state);
 }
 
+static void i965_get_gamma_config_10p6(struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	u32 i, val1, val2, lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size;
+	enum pipe pipe = crtc->pipe;
+	struct drm_property_blob *blob;
+	struct drm_color_lut *blob_data;
+
+	blob = drm_property_create_blob(&dev_priv->drm,
+					sizeof(struct drm_color_lut) * lut_size,
+					NULL);
+	if (IS_ERR(blob))
+		return;
+
+	blob_data = blob->data;
+
+	for (i = 0; i < lut_size - 1; i++) {
+		val1 = I915_READ(PALETTE(pipe, 2 * i + 0));
+		val2 = I915_READ(PALETTE(pipe, 2 * i + 1));
+
+		blob_data[i].red = REG_FIELD_GET(PALETTE_RED_MASK, val1) << 8 | REG_FIELD_GET(PALETTE_RED_MASK, val2);
+		blob_data[i].green = REG_FIELD_GET(PALETTE_GREEN_MASK, val1) << 8 | REG_FIELD_GET(PALETTE_GREEN_MASK, val2);
+		blob_data[i].blue = REG_FIELD_GET(PALETTE_BLUE_MASK, val1) << 8 | REG_FIELD_GET(PALETTE_BLUE_MASK, val2) ;
+	}
+
+	crtc_state->base.gamma_lut = blob;
+}
+
+static void i965_get_color_config(struct intel_crtc_state *crtc_state)
+{
+	if (crtc_state->gamma_mode == GAMMA_MODE_MODE_8BIT)
+		i9xx_get_color_config(crtc_state);
+	else
+		i965_get_gamma_config_10p6(crtc_state);
+}
+
 void intel_color_init(struct intel_crtc *crtc)
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
@@ -1332,6 +1369,7 @@ void intel_color_init(struct intel_crtc *crtc)
 			dev_priv->display.color_check = i9xx_color_check;
 			dev_priv->display.color_commit = i9xx_color_commit;
 			dev_priv->display.load_luts = i965_load_luts;
+			dev_priv->display.get_color_config = i965_get_color_config;
 		} else {
 			dev_priv->display.color_check = i9xx_color_check;
 			dev_priv->display.color_commit = i9xx_color_commit;
-- 
1.9.1