diff options
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_mt8183_mipi_tx.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_mt8183_mipi_tx.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_mt8183_mipi_tx.c b/drivers/gpu/drm/mediatek/mtk_mt8183_mipi_tx.c index 91f08a351fd0..9f3e55aeebb2 100644 --- a/drivers/gpu/drm/mediatek/mtk_mt8183_mipi_tx.c +++ b/drivers/gpu/drm/mediatek/mtk_mt8183_mipi_tx.c @@ -17,6 +17,9 @@ #define RG_DSI_BG_CORE_EN BIT(7) #define RG_DSI_PAD_TIEL_SEL BIT(8) +#define MIPITX_VOLTAGE_SEL 0x0010 +#define RG_DSI_HSTX_LDO_REF_SEL (0xf << 6) + #define MIPITX_PLL_PWR 0x0028 #define MIPITX_PLL_CON0 0x002c #define MIPITX_PLL_CON1 0x0030 @@ -25,6 +28,7 @@ #define MIPITX_PLL_CON4 0x003c #define RG_DSI_PLL_IBIAS (3 << 10) +#define MIPITX_D2P_RTCODE 0x0100 #define MIPITX_D2_SW_CTL_EN 0x0144 #define MIPITX_D0_SW_CTL_EN 0x0244 #define MIPITX_CK_CKMODE_EN 0x0328 @@ -105,6 +109,24 @@ static const struct clk_ops mtk_mipi_tx_pll_ops = { .recalc_rate = mtk_mipi_tx_pll_recalc_rate, }; +static void mtk_mipi_tx_config_calibration_data(struct mtk_mipi_tx *mipi_tx) +{ + int i, j; + + for (i = 0; i < 5; i++) { + if ((mipi_tx->rt_code[i] & 0x1f) == 0) + mipi_tx->rt_code[i] |= 0x10; + + if ((mipi_tx->rt_code[i] >> 5 & 0x1f) == 0) + mipi_tx->rt_code[i] |= 0x10 << 5; + + for (j = 0; j < 10; j++) + mtk_mipi_tx_update_bits(mipi_tx, + MIPITX_D2P_RTCODE * (i + 1) + j * 4, + 1, mipi_tx->rt_code[i] >> j & 1); + } +} + static void mtk_mipi_tx_power_on_signal(struct phy *phy) { struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy); @@ -123,6 +145,12 @@ static void mtk_mipi_tx_power_on_signal(struct phy *phy) mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_D3_SW_CTL_EN, DSI_SW_CTL_EN); mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_CK_SW_CTL_EN, DSI_SW_CTL_EN); + mtk_mipi_tx_update_bits(mipi_tx, MIPITX_VOLTAGE_SEL, + RG_DSI_HSTX_LDO_REF_SEL, + (mipi_tx->mipitx_drive - 3000) / 200 << 6); + + mtk_mipi_tx_config_calibration_data(mipi_tx); + mtk_mipi_tx_set_bits(mipi_tx, MIPITX_CK_CKMODE_EN, DSI_CK_CKMODE_EN); } |