diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rk3399.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rk3399.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3399.c b/drivers/pinctrl/rockchip/pinctrl-rk3399.c index 82c8feeb7b..68bb492a6b 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rk3399.c +++ b/drivers/pinctrl/rockchip/pinctrl-rk3399.c @@ -98,10 +98,6 @@ static void rk3399_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, *reg = RK3399_PULL_PMU_OFFSET; *reg += bank->bank_num * ROCKCHIP_PULL_BANK_STRIDE; - - *reg += ((pin_num / ROCKCHIP_PULL_PINS_PER_REG) * 4); - *bit = pin_num % ROCKCHIP_PULL_PINS_PER_REG; - *bit *= ROCKCHIP_PULL_BITS_PER_PIN; } else { *regmap = priv->regmap_base; *reg = RK3399_PULL_GRF_OFFSET; @@ -109,11 +105,39 @@ static void rk3399_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, /* correct the offset, as we're starting with the 3rd bank */ *reg -= 0x20; *reg += bank->bank_num * ROCKCHIP_PULL_BANK_STRIDE; - *reg += ((pin_num / ROCKCHIP_PULL_PINS_PER_REG) * 4); + } + + *reg += ((pin_num / ROCKCHIP_PULL_PINS_PER_REG) * 4); + + *bit = (pin_num % ROCKCHIP_PULL_PINS_PER_REG); + *bit *= ROCKCHIP_PULL_BITS_PER_PIN; +} + +static int rk3399_set_pull(struct rockchip_pin_bank *bank, + int pin_num, int pull) +{ + struct regmap *regmap; + int reg, ret; + u8 bit, type; + u32 data; - *bit = (pin_num % ROCKCHIP_PULL_PINS_PER_REG); - *bit *= ROCKCHIP_PULL_BITS_PER_PIN; + if (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT) + return -ENOTSUPP; + + rk3399_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 void rk3399_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, @@ -275,7 +299,7 @@ static struct rockchip_pin_ctrl rk3399_pin_ctrl = { .iomux_routes = rk3399_mux_route_data, .niomux_routes = ARRAY_SIZE(rk3399_mux_route_data), .set_mux = rk3399_set_mux, - .pull_calc_reg = rk3399_calc_pull_reg_and_bit, + .set_pull = rk3399_set_pull, .set_drive = rk3399_set_drive, }; |