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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-04-01 23:02:25 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-04-03 22:26:12 +0300 |
| commit | 320d41b33ade094f08c6a0cbb7a0bd305fceaf5f (patch) | |
| tree | 39b257238dd7d5ea3ae955f988b306a626974b3c /drivers/gpu/drm/i915/intel_color.c | |
| parent | 59f9e9cab3a1e6762fb707d0d829b982930f1349 (diff) | |
| download | linux-stable-320d41b33ade094f08c6a0cbb7a0bd305fceaf5f.tar.gz linux-stable-320d41b33ade094f08c6a0cbb7a0bd305fceaf5f.tar.bz2 linux-stable-320d41b33ade094f08c6a0cbb7a0bd305fceaf5f.zip | |
drm/i915: Extract ilk_lut_10()
Extract a helper to calculate the ILK+ 10bit gamma LUT entry.
It's already duplicated twice, and soon we'll have more.
v2: s/it/bit/ (Matt)
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190401200231.2333-2-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_color.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_color.c | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c index f2907cfd116a..d5b3060c2645 100644 --- a/drivers/gpu/drm/i915/intel_color.c +++ b/drivers/gpu/drm/i915/intel_color.c @@ -359,6 +359,13 @@ static void cherryview_load_csc_matrix(const struct intel_crtc_state *crtc_state I915_WRITE(CGM_PIPE_MODE(pipe), crtc_state->cgm_mode); } +static u32 ilk_lut_10(const struct drm_color_lut *color) +{ + return drm_color_lut_extract(color->red, 10) << 20 | + drm_color_lut_extract(color->green, 10) << 10 | + drm_color_lut_extract(color->blue, 10); +} + /* Loads the legacy palette/gamma unit for the CRTC. */ static void i9xx_load_luts_internal(const struct intel_crtc_state *crtc_state, const struct drm_property_blob *blob) @@ -473,14 +480,8 @@ static void bdw_load_degamma_lut(const struct intel_crtc_state *crtc_state) if (degamma_lut) { const struct drm_color_lut *lut = degamma_lut->data; - for (i = 0; i < lut_size; i++) { - u32 word = - drm_color_lut_extract(lut[i].red, 10) << 20 | - drm_color_lut_extract(lut[i].green, 10) << 10 | - drm_color_lut_extract(lut[i].blue, 10); - - I915_WRITE(PREC_PAL_DATA(pipe), word); - } + for (i = 0; i < lut_size; i++) + I915_WRITE(PREC_PAL_DATA(pipe), ilk_lut_10(&lut[i])); } else { for (i = 0; i < lut_size; i++) { u32 v = (i * ((1 << 10) - 1)) / (lut_size - 1); @@ -509,14 +510,8 @@ static void bdw_load_gamma_lut(const struct intel_crtc_state *crtc_state, u32 of if (gamma_lut) { const struct drm_color_lut *lut = gamma_lut->data; - for (i = 0; i < lut_size; i++) { - u32 word = - (drm_color_lut_extract(lut[i].red, 10) << 20) | - (drm_color_lut_extract(lut[i].green, 10) << 10) | - drm_color_lut_extract(lut[i].blue, 10); - - I915_WRITE(PREC_PAL_DATA(pipe), word); - } + for (i = 0; i < lut_size; i++) + I915_WRITE(PREC_PAL_DATA(pipe), ilk_lut_10(&lut[i])); /* * Program the max register to clamp values > 1.0. |