mirror of
https://github.com/Ysurac/openmptcprouter.git
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62 lines
2 KiB
Diff
62 lines
2 KiB
Diff
From d0b9bb15fad38e8328f9436501e36697e4e1a89d Mon Sep 17 00:00:00 2001
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From: chunhui dai <chunhui.dai@mediatek.com>
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Date: Wed, 3 Oct 2018 11:41:43 +0800
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Subject: [PATCH 29/77] drm/mediatek: adjust EDGE to match clock and data
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The default timing of DPI data and clock is not match.
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We could adjust this bit to make them match.
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Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
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Reviewed-by: CK Hu <ck.hu@mediatek.com>
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---
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drivers/gpu/drm/mediatek/mtk_dpi.c | 8 ++++++++
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drivers/gpu/drm/mediatek/mtk_dpi_regs.h | 1 +
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2 files changed, 9 insertions(+)
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diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
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index 72aa43187731..0ce4b61efaeb 100644
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--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
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+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
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@@ -114,6 +114,7 @@ struct mtk_dpi_yc_limit {
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struct mtk_dpi_conf {
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u32 reg_h_fre_con;
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+ bool edge_sel_en;
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};
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static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
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@@ -344,6 +345,12 @@ static void mtk_dpi_config_2n_h_fre(struct mtk_dpi *dpi)
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mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, H_FRE_2N, H_FRE_2N);
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}
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+static void mtk_dpi_config_disable_edge(struct mtk_dpi *dpi)
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+{
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+ if (dpi->conf->edge_sel_en)
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+ mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, 0, EDGE_SEL_EN);
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+}
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+
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static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
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enum mtk_dpi_out_color_format format)
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{
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@@ -507,6 +514,7 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
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mtk_dpi_config_yc_map(dpi, dpi->yc_map);
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mtk_dpi_config_color_format(dpi, dpi->color_format);
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mtk_dpi_config_2n_h_fre(dpi);
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+ mtk_dpi_config_disable_edge(dpi);
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mtk_dpi_sw_reset(dpi, false);
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return 0;
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diff --git a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
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index 040444d7718d..d9db8c4cacd7 100644
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--- a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
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+++ b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
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@@ -223,5 +223,6 @@
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#define ESAV_CODE2 (0xFFF << 0)
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#define ESAV_CODE3_MSB BIT(16)
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+#define EDGE_SEL_EN BIT(5)
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#define H_FRE_2N BIT(25)
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#endif /* __MTK_DPI_REGS_H */
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--
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2.19.1
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