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drm/mediatek: Add has_dither private data for gamma

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Not all SoC has dither function in gamma module.
Add private data to control this function setting.

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
Yongqiang Niu 2021-01-29 17:22:06 +08:00 committed by Chun-Kuang Hu
parent 69a4237ab1
commit 4a15d1ac37
1 changed files with 10 additions and 4 deletions
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14
drivers/gpu/drm/mediatek/mtk_disp_gamma.c
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@ -26,7 +26,7 @@
#define LUT_10BIT_MASK 0x03ff #define LUT_10BIT_MASK 0x03ff
struct mtk_disp_gamma_data { struct mtk_disp_gamma_data {
u32 reserved; bool has_dither;
}; };
/** /**
@ -92,8 +92,9 @@ void mtk_gamma_config(struct device *dev, unsigned int w,
mtk_ddp_write(cmdq_pkt, h << 16 | w, &gamma->cmdq_reg, gamma->regs, mtk_ddp_write(cmdq_pkt, h << 16 | w, &gamma->cmdq_reg, gamma->regs,
DISP_GAMMA_SIZE); DISP_GAMMA_SIZE);
mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc, DISP_GAMMA_CFG, if (gamma->data && gamma->data->has_dither)
GAMMA_DITHERING, cmdq_pkt); mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc,
DISP_GAMMA_CFG, GAMMA_DITHERING, cmdq_pkt);
} }
void mtk_gamma_start(struct device *dev) void mtk_gamma_start(struct device *dev)
@ -173,8 +174,13 @@ static int mtk_disp_gamma_remove(struct platform_device *pdev)
return 0; return 0;
} }
static const struct mtk_disp_gamma_data mt8173_gamma_driver_data = {
.has_dither = true,
};
static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = { static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = {
{ .compatible = "mediatek,mt8173-disp-gamma"}, { .compatible = "mediatek,mt8173-disp-gamma",
.data = &mt8173_gamma_driver_data},
{}, {},
}; };
MODULE_DEVICE_TABLE(of, mtk_disp_gamma_driver_dt_match); MODULE_DEVICE_TABLE(of, mtk_disp_gamma_driver_dt_match);