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drm/mediatek: Add gamma property according to hardware capability

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If there is no gamma function in the crtc
display path, don't add gamma property
for crtc

Fixes: 2f3f4dda747c ("drm/mediatek: Add gamma correction.")
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
Yongqiang Niu 2019-12-13 15:28:51 +08:00 committed by CK Hu
parent 2f965be7f9
commit 4cebc1de50
1 changed files with 8 additions and 2 deletions
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10
drivers/gpu/drm/mediatek/mtk_drm_crtc.c
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@ -730,6 +730,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
int pipe = priv->num_pipes;
int ret;
int i;
uint gamma_lut_size = 0;
if (!path)
return 0;
@ -780,6 +781,9 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
}
mtk_crtc->ddp_comp[i] = comp;
if (comp->funcs && comp->funcs->gamma_set)
gamma_lut_size = MTK_LUT_SIZE;
}
for (i = 0; i < mtk_crtc->ddp_comp_nr; i++)
@ -800,8 +804,10 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
NULL, pipe);
if (ret < 0)
return ret;
drm_mode_crtc_set_gamma_size(&mtk_crtc->base, MTK_LUT_SIZE);
drm_crtc_enable_color_mgmt(&mtk_crtc->base, 0, false, MTK_LUT_SIZE);
if (gamma_lut_size)
drm_mode_crtc_set_gamma_size(&mtk_crtc->base, gamma_lut_size);
drm_crtc_enable_color_mgmt(&mtk_crtc->base, 0, false, gamma_lut_size);
priv->num_pipes++;
mutex_init(&mtk_crtc->hw_lock);