Commit 4a15d1ac authored by Yongqiang Niu's avatar Yongqiang Niu Committed by Chun-Kuang Hu
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drm/mediatek: Add has_dither private data for gamma 



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

Signed-off-by: default avatarYongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: default avatarHsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: default avatarCK Hu <ck.hu@mediatek.com>
Signed-off-by: default avatarChun-Kuang Hu <chunkuang.hu@kernel.org>
parent 69a4237a

drivers/gpu/drm/mediatek/mtk_disp_gamma.c

+10 −4
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ 
#define LUT_10BIT_MASK				0x03ff



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,

		      DISP_GAMMA_SIZE);

	mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc, DISP_GAMMA_CFG,

			      GAMMA_DITHERING, cmdq_pkt);

	if (gamma->data && gamma->data->has_dither)

		mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc,

				      DISP_GAMMA_CFG, GAMMA_DITHERING, cmdq_pkt);

}



void mtk_gamma_start(struct device *dev)
@@ -173,8 +174,13 @@ static int mtk_disp_gamma_remove(struct platform_device *pdev) 
	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[] = {

	{ .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);