diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rk3188.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rk3188.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3188.c b/drivers/pinctrl/rockchip/pinctrl-rk3188.c index 7cc52c0075..617ae28ac8 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 @@ -60,6 +84,7 @@ static struct rockchip_pin_ctrl rk3188_pin_ctrl = { .label = "RK3188-GPIO", .type = RK3188, .grf_mux_offset = 0x60, + .set_mux = rk3188_set_mux, .pull_calc_reg = rk3188_calc_pull_reg_and_bit, }; |