diff options
| author | Jitao Shi <jitao.shi@mediatek.com> | 2019-10-22 10:15:34 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-10-23 13:35:41 +0000 |
| commit | b6ca93839d9e82bff060125e742dff1b2260c5d5 (patch) | |
| tree | 1d52842e77ad947739c3330b47c0bae0d5c1a621 /src/soc/mediatek | |
| parent | 19e961e83c4200de78cbbb9e8e5800c535619a42 (diff) | |
soc/mediatek/mt8183: add dphy reset after setting lanes number
Add dphy reset after setting lanes number to avoid dphy fifo error.
BUG=b:139150763
BRANCH=kukui
TEST=Boots correctly on kukui
Change-Id: Ib83576f3700ef98c90f0b4dd101dcaa237d562f9
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36223
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Diffstat (limited to 'src/soc/mediatek')
| -rw-r--r-- | src/soc/mediatek/common/dsi.c | 8 | ||||
| -rw-r--r-- | src/soc/mediatek/common/include/soc/dsi_common.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/mediatek/common/dsi.c b/src/soc/mediatek/common/dsi.c index 2b4fac7d42..d60abdb964 100644 --- a/src/soc/mediatek/common/dsi.c +++ b/src/soc/mediatek/common/dsi.c @@ -392,6 +392,12 @@ static void mtk_dsi_send_init_commands(const u8 *buf) } } +static void mtk_dsi_reset_dphy(void) +{ + setbits_le32(&dsi0->dsi_con_ctrl, DPHY_RESET); + clrbits_le32(&dsi0->dsi_con_ctrl, DPHY_RESET); +} + int mtk_dsi_init(u32 mode_flags, u32 format, u32 lanes, const struct edid *edid, const u8 *init_commands) { @@ -407,6 +413,8 @@ int mtk_dsi_init(u32 mode_flags, u32 format, u32 lanes, const struct edid *edid, struct mtk_phy_timing phy_timing; mtk_dsi_phy_timing(data_rate, &phy_timing); mtk_dsi_rxtx_control(mode_flags, lanes); + mdelay(1); + mtk_dsi_reset_dphy(); mtk_dsi_clk_hs_mode_disable(); mtk_dsi_config_vdo_timing(mode_flags, format, lanes, edid, &phy_timing); mtk_dsi_clk_hs_mode_enable(); diff --git a/src/soc/mediatek/common/include/soc/dsi_common.h b/src/soc/mediatek/common/include/soc/dsi_common.h index 9a00d1d149..3052689c90 100644 --- a/src/soc/mediatek/common/include/soc/dsi_common.h +++ b/src/soc/mediatek/common/include/soc/dsi_common.h @@ -115,6 +115,7 @@ enum { enum { DSI_RESET = BIT(0), DSI_EN = BIT(1), + DPHY_RESET = BIT(2), DSI_DUAL = BIT(4), }; |