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drm/i915: Use drm_color_lut_size() 

Avoid all the sizeof(drm_color_lut) business by using
drm_color_lut_size() to convert the blob length into
number of LUT entries.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180223192506.29992-6-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2018-02-23 21:25:06 +02:00
parent d5517a39dc
commit 80343b3e47
1 changed files with 6 additions and 8 deletions
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14
drivers/gpu/drm/i915/intel_color.c
View File

@ -39,7 +39,7 @@
#define CTM_COEFF_NEGATIVE(coeff) (((coeff) & CTM_COEFF_SIGN) != 0)
#define CTM_COEFF_ABS(coeff) ((coeff) & (CTM_COEFF_SIGN - 1))
#define LEGACY_LUT_LENGTH (sizeof(struct drm_color_lut) * 256)
#define LEGACY_LUT_LENGTH 256
/* Post offset values for RGB->YCBCR conversion */
#define POSTOFF_RGB_TO_YUV_HI 0x800
@ -79,7 +79,7 @@ static bool crtc_state_is_legacy_gamma(struct drm_crtc_state *state)
return !state->degamma_lut &&
!state->ctm &&
state->gamma_lut &&
state->gamma_lut->length == LEGACY_LUT_LENGTH;
drm_color_lut_size(state->gamma_lut) == LEGACY_LUT_LENGTH;
}
/*
@ -612,19 +612,17 @@ int intel_color_check(struct drm_crtc *crtc,
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
size_t gamma_length, degamma_length;
degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size *
sizeof(struct drm_color_lut);
gamma_length = INTEL_INFO(dev_priv)->color.gamma_lut_size *
sizeof(struct drm_color_lut);
degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size;
gamma_length = INTEL_INFO(dev_priv)->color.gamma_lut_size;
/*
* We allow both degamma & gamma luts at the right size or
* NULL.
*/
if ((!crtc_state->degamma_lut ||
crtc_state->degamma_lut->length == degamma_length) &&
drm_color_lut_size(crtc_state->degamma_lut) == degamma_length) &&
(!crtc_state->gamma_lut ||
crtc_state->gamma_lut->length == gamma_length))
drm_color_lut_size(crtc_state->gamma_lut) == gamma_length))
return 0;
/*