diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rk3036.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rk3036.c | 56 |
1 files changed, 50 insertions, 6 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3036.c b/drivers/pinctrl/rockchip/pinctrl-rk3036.c index 2729b03443..28c905129b 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rk3036.c +++ b/drivers/pinctrl/rockchip/pinctrl-rk3036.c @@ -11,6 +11,30 @@ #include "pinctrl-rockchip.h" +static int rk3036_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 RK3036_PULL_OFFSET 0x118 #define RK3036_PULL_PINS_PER_REG 16 #define RK3036_PULL_BANK_STRIDE 8 @@ -29,6 +53,27 @@ static void rk3036_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, *bit = pin_num % RK3036_PULL_PINS_PER_REG; }; +static int rk3036_set_pull(struct rockchip_pin_bank *bank, + int pin_num, int pull) +{ + struct regmap *regmap; + int reg, ret; + u8 bit; + u32 data; + + if (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT && + pull != PIN_CONFIG_BIAS_DISABLE) + return -ENOTSUPP; + + rk3036_calc_pull_reg_and_bit(bank, pin_num, ®map, ®, &bit); + data = BIT(bit + 16); + if (pull == PIN_CONFIG_BIAS_DISABLE) + data |= BIT(bit); + ret = regmap_write(regmap, reg, data); + + return ret; +} + static struct rockchip_pin_bank rk3036_pin_banks[] = { PIN_BANK(0, 32, "gpio0"), PIN_BANK(1, 32, "gpio1"), @@ -36,12 +81,11 @@ static struct rockchip_pin_bank rk3036_pin_banks[] = { }; static struct rockchip_pin_ctrl rk3036_pin_ctrl = { - .pin_banks = rk3036_pin_banks, - .nr_banks = ARRAY_SIZE(rk3036_pin_banks), - .label = "RK3036-GPIO", - .type = RK3036, - .grf_mux_offset = 0xa8, - .pull_calc_reg = rk3036_calc_pull_reg_and_bit, + .pin_banks = rk3036_pin_banks, + .nr_banks = ARRAY_SIZE(rk3036_pin_banks), + .grf_mux_offset = 0xa8, + .set_mux = rk3036_set_mux, + .set_pull = rk3036_set_pull, }; static const struct udevice_id rk3036_pinctrl_ids[] = { |