diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rk322x.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rk322x.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk322x.c b/drivers/pinctrl/rockchip/pinctrl-rk322x.c index 10200ff3c8..b69d9795bb 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rk322x.c +++ b/drivers/pinctrl/rockchip/pinctrl-rk322x.c @@ -191,6 +191,33 @@ static void rk3228_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank, *bit *= ROCKCHIP_PULL_BITS_PER_PIN; } +static int rk3228_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; + + rk3228_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 RK3228_DRV_GRF_OFFSET 0x200 static void rk3228_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, @@ -247,7 +274,7 @@ static struct rockchip_pin_ctrl rk3228_pin_ctrl = { .iomux_routes = rk3228_mux_route_data, .niomux_routes = ARRAY_SIZE(rk3228_mux_route_data), .set_mux = rk3228_set_mux, - .pull_calc_reg = rk3228_calc_pull_reg_and_bit, + .set_pull = rk3228_set_pull, .set_drive = rk3228_set_drive, }; |