Signed-off-by: Swati Sharma <[email protected]>
---
drivers/gpu/drm/i915/display/intel_color.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_color.c
b/drivers/gpu/drm/i915/display/intel_color.c
index 318308d..b1f0f7e 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -807,11 +807,11 @@ static u32 ilk_lut_12p4_ldw(const struct drm_color_lut
*color)
u32 i;
/*
- * Every entry in the multi-segment LUT is corresponding to a superfine
- * segment step which is 1/(8 * 128 * 256).
+ * Program Super Fine segment (let's call it seg1)...
*
- * Superfine segment has 9 entries, corresponding to values
- * 0, 1/(8 * 128 * 256), 2/(8 * 128 * 256) .... 8/(8 * 128 * 256).
+ * Super Fine segment's step is 1/(8 * 128 * 256) and it has
+ * 9 entries, corresponding to values 0, 1/(8 * 128 * 256),
+ * 2/(8 * 128 * 256) ... 8/(8 * 128 * 256).
*/
I915_WRITE(PREC_PAL_MULTI_SEG_INDEX(pipe), PAL_PREC_AUTO_INCREMENT);
@@ -837,10 +837,9 @@ static u32 ilk_lut_12p4_ldw(const struct drm_color_lut
*color)
u32 i;
/*
- *
* Program Fine segment (let's call it seg2)...
*
- * Fine segment's step is 1/(128 * 256) ie 1/(128 * 256), 2/(128*256)
+ * Fine segment's step is 1/(128 * 256) i.e. 1/(128 * 256), 2/(128*256)
* ... 256/(128*256). So in order to program fine segment of LUT we
* need to pick every 8'th entry in LUT, and program 256 indexes.
*
@@ -858,7 +857,7 @@ static u32 ilk_lut_12p4_ldw(const struct drm_color_lut
*color)
* Program Coarse segment (let's call it seg3)...
*
* Coarse segment's starts from index 0 and it's step is 1/256 ie 0,
- * 1/256, 2/256 ...256/256. As per the description of each entry in LUT
+ * 1/256, 2/256 ... 256/256. As per the description of each entry in LUT
* above, we need to pick every (8 * 128)th entry in LUT, and
* program 256 of those.
*
@@ -890,12 +889,10 @@ static void icl_load_luts(const struct intel_crtc_state
*crtc_state)
case GAMMA_MODE_MODE_8BIT:
i9xx_load_luts(crtc_state);
break;
-
case GAMMA_MODE_MODE_12BIT_MULTI_SEGMENTED:
icl_program_gamma_superfine_segment(crtc_state);
icl_program_gamma_multi_segment(crtc_state);
break;
-
default:
bdw_load_lut_10(crtc, gamma_lut, PAL_PREC_INDEX_VALUE(0));
ivb_load_lut_ext_max(crtc);
--
1.9.1
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