diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rv1108.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rv1108.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rv1108.c b/drivers/pinctrl/rockchip/pinctrl-rv1108.c index 1a150ff0f1..6456483e36 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rv1108.c +++ b/drivers/pinctrl/rockchip/pinctrl-rv1108.c @@ -128,6 +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 @@ -229,7 +257,7 @@ static struct rockchip_pin_ctrl rv1108_pin_ctrl = { .iomux_recalced = rv1108_mux_recalced_data, .niomux_recalced = ARRAY_SIZE(rv1108_mux_recalced_data), .set_mux = rv1108_set_mux, - .pull_calc_reg = rv1108_calc_pull_reg_and_bit, + .set_pull = rv1108_set_pull, .set_drive = rv1108_set_drive, .schmitt_calc_reg = rv1108_calc_schmitt_reg_and_bit, }; |