diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rv1108.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rv1108.c | 103 |
1 files changed, 98 insertions, 5 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rv1108.c b/drivers/pinctrl/rockchip/pinctrl-rv1108.c index f4a09a6824..54610a3e90 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rv1108.c +++ b/drivers/pinctrl/rockchip/pinctrl-rv1108.c @@ -75,6 +75,33 @@ static struct rockchip_mux_recalced_data rv1108_mux_recalced_data[] = { }, }; +static int rv1108_set_mux(struct rockchip_pin_bank *bank, int pin, int mux) +{ + struct rockchip_pinctrl_priv *priv = bank->priv; + int iomux_num = (pin / 8); + struct regmap *regmap; + int reg, ret, mask, mux_type; + u8 bit; + u32 data; + + regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU) + ? priv->regmap_pmu : priv->regmap_base; + + /* get basic quadrupel of mux registers and the correct reg inside */ + mux_type = bank->iomux[iomux_num].type; + reg = bank->iomux[iomux_num].offset; + reg += rockchip_get_mux_data(mux_type, pin, &bit, &mask); + + if (bank->recalced_mask & BIT(pin)) + rockchip_get_recalced_mux(bank, pin, ®, &bit, &mask); + + data = (mask << (bit + 16)); + data |= (mux & mask) << bit; + ret = regmap_write(regmap, reg, data); + + return ret; +} + #define RV1108_PULL_PMU_OFFSET 0x10 #define RV1108_PULL_OFFSET 0x110 @@ -101,6 +128,34 @@ static void rv1108_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, *bit *= ROCKCHIP_PULL_BITS_PER_PIN; } +static int rv1108_set_pull(struct rockchip_pin_bank *bank, + int pin_num, int pull) +{ + struct regmap *regmap; + int reg, ret; + u8 bit, type; + u32 data; + + if (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT) + return -ENOTSUPP; + + rv1108_calc_pull_reg_and_bit(bank, pin_num, ®map, ®, &bit); + type = bank->pull_type[pin_num / 8]; + ret = rockchip_translate_pull_value(type, pull); + if (ret < 0) { + debug("unsupported pull setting %d\n", pull); + return ret; + } + + /* enable the write to the equivalent lower bits */ + data = ((1 << ROCKCHIP_PULL_BITS_PER_PIN) - 1) << (bit + 16); + + data |= (ret << bit); + ret = regmap_write(regmap, reg, data); + + return ret; +} + #define RV1108_DRV_PMU_OFFSET 0x20 #define RV1108_DRV_GRF_OFFSET 0x210 @@ -128,6 +183,30 @@ static void rv1108_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, *bit *= ROCKCHIP_DRV_BITS_PER_PIN; } +static int rv1108_set_drive(struct rockchip_pin_bank *bank, + int pin_num, int strength) +{ + struct regmap *regmap; + int reg, ret; + u32 data; + u8 bit; + int type = bank->drv[pin_num / 8].drv_type; + + rv1108_calc_drv_reg_and_bit(bank, pin_num, ®map, ®, &bit); + ret = rockchip_translate_drive_value(type, strength); + if (ret < 0) { + debug("unsupported driver strength %d\n", strength); + return ret; + } + + /* enable the write to the equivalent lower bits */ + data = ((1 << ROCKCHIP_DRV_BITS_PER_PIN) - 1) << (bit + 16); + + data |= (ret << bit); + ret = regmap_write(regmap, reg, data); + return ret; +} + #define RV1108_SCHMITT_PMU_OFFSET 0x30 #define RV1108_SCHMITT_GRF_OFFSET 0x388 #define RV1108_SCHMITT_BANK_STRIDE 8 @@ -158,6 +237,21 @@ static int rv1108_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank, return 0; } +static int rv1108_set_schmitt(struct rockchip_pin_bank *bank, + int pin_num, int enable) +{ + struct regmap *regmap; + int reg; + u8 bit; + u32 data; + + rv1108_calc_schmitt_reg_and_bit(bank, pin_num, ®map, ®, &bit); + /* enable the write to the equivalent lower bits */ + data = BIT(bit + 16) | (enable << bit); + + return regmap_write(regmap, reg, data); +} + static struct rockchip_pin_bank rv1108_pin_banks[] = { PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU, IOMUX_SOURCE_PMU, @@ -171,15 +265,14 @@ static struct rockchip_pin_bank rv1108_pin_banks[] = { static struct rockchip_pin_ctrl rv1108_pin_ctrl = { .pin_banks = rv1108_pin_banks, .nr_banks = ARRAY_SIZE(rv1108_pin_banks), - .label = "RV1108-GPIO", - .type = RV1108, .grf_mux_offset = 0x10, .pmu_mux_offset = 0x0, .iomux_recalced = rv1108_mux_recalced_data, .niomux_recalced = ARRAY_SIZE(rv1108_mux_recalced_data), - .pull_calc_reg = rv1108_calc_pull_reg_and_bit, - .drv_calc_reg = rv1108_calc_drv_reg_and_bit, - .schmitt_calc_reg = rv1108_calc_schmitt_reg_and_bit, + .set_mux = rv1108_set_mux, + .set_pull = rv1108_set_pull, + .set_drive = rv1108_set_drive, + .set_schmitt = rv1108_set_schmitt, }; static const struct udevice_id rv1108_pinctrl_ids[] = { |