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drm/mediatek: adjust EDGE to match clock and data

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

Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
chunhui dai 2018-10-03 11:41:43 +08:00 committed by CK Hu
parent 0ace4b993c
commit 79080159a7
2 changed files with 9 additions and 0 deletions
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8
drivers/gpu/drm/mediatek/mtk_dpi.c
View File

@ -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;

1
drivers/gpu/drm/mediatek/mtk_dpi_regs.h
View File

@ -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 */