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Commit 79080159 authored by chunhui dai's avatar chunhui dai Committed by CK Hu
Browse files

drm/mediatek: adjust EDGE to match clock and data 



The default timing of DPI data and clock is not match.
We could adjust this bit to make them match.

Signed-off-by: default avatarchunhui dai <chunhui.dai@mediatek.com>
Signed-off-by: default avatarCK Hu <ck.hu@mediatek.com>
parent 0ace4b99

drivers/gpu/drm/mediatek/mtk_dpi.c

+8 −0
Original line number Diff line number Diff line
@@ -114,6 +114,7 @@ struct mtk_dpi_yc_limit { 


struct mtk_dpi_conf {

	u32 reg_h_fre_con;

	bool edge_sel_en;

};



static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
@@ -344,6 +345,12 @@ static void mtk_dpi_config_2n_h_fre(struct mtk_dpi *dpi) 
	mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, H_FRE_2N, H_FRE_2N);

}



static void mtk_dpi_config_disable_edge(struct mtk_dpi *dpi)

{

	if (dpi->conf->edge_sel_en)

		mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, 0, EDGE_SEL_EN);

}



static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,

					enum mtk_dpi_out_color_format format)

{
@@ -507,6 +514,7 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi, 
	mtk_dpi_config_yc_map(dpi, dpi->yc_map);

	mtk_dpi_config_color_format(dpi, dpi->color_format);

	mtk_dpi_config_2n_h_fre(dpi);

	mtk_dpi_config_disable_edge(dpi);

	mtk_dpi_sw_reset(dpi, false);



	return 0;

drivers/gpu/drm/mediatek/mtk_dpi_regs.h

+1 −0
Original line number Diff line number Diff line
@@ -223,5 +223,6 @@ 
#define ESAV_CODE2			(0xFFF << 0)

#define ESAV_CODE3_MSB			BIT(16)



#define EDGE_SEL_EN			BIT(5)

#define H_FRE_2N			BIT(25)

#endif /* __MTK_DPI_REGS_H */