diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rk3188.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rk3188.c | 62 |
1 files changed, 56 insertions, 6 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3188.c b/drivers/pinctrl/rockchip/pinctrl-rk3188.c index 5ed9aec9384..043764fc920 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rk3188.c +++ b/drivers/pinctrl/rockchip/pinctrl-rk3188.c @@ -11,6 +11,30 @@ #include "pinctrl-rockchip.h" +static int rk3188_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); + + data = (mask << (bit + 16)); + data |= (mux & mask) << bit; + ret = regmap_write(regmap, reg, data); + + return ret; +} + #define RK3188_PULL_OFFSET 0x164 #define RK3188_PULL_PMU_OFFSET 0x64 @@ -47,6 +71,33 @@ static void rk3188_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, } } +static int rk3188_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; + + rk3188_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; +} + static struct rockchip_pin_bank rk3188_pin_banks[] = { PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_GPIO_ONLY, 0, 0, 0), PIN_BANK(1, 32, "gpio1"), @@ -55,12 +106,11 @@ static struct rockchip_pin_bank rk3188_pin_banks[] = { }; static struct rockchip_pin_ctrl rk3188_pin_ctrl = { - .pin_banks = rk3188_pin_banks, - .nr_banks = ARRAY_SIZE(rk3188_pin_banks), - .label = "RK3188-GPIO", - .type = RK3188, - .grf_mux_offset = 0x60, - .pull_calc_reg = rk3188_calc_pull_reg_and_bit, + .pin_banks = rk3188_pin_banks, + .nr_banks = ARRAY_SIZE(rk3188_pin_banks), + .grf_mux_offset = 0x60, + .set_mux = rk3188_set_mux, + .set_pull = rk3188_set_pull, }; static const struct udevice_id rk3188_pinctrl_ids[] = { |