diff options
| author | David Wu <david.wu@rock-chips.com> | 2019-04-16 21:55:26 +0800 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2019-05-08 17:34:12 +0800 |
| commit | 625ab11fdae3daf346647aaba59abee804e34589 (patch) | |
| tree | 59fe14af76986ea4cb065b90c88127d626b7c982 /drivers/pinctrl/rockchip/pinctrl-rk322x.c | |
| parent | cd8f00ce08102d2dbb350c76bbb53f7b0f804b7d (diff) | |
| download | u-boot-625ab11fdae3daf346647aaba59abee804e34589.tar.gz | |
pinctrl: rockchip: Split the common set_drive() func into per Soc
As the common set_mux func(), implement the feature at the own file
for each Soc.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rk322x.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rk322x.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk322x.c b/drivers/pinctrl/rockchip/pinctrl-rk322x.c index 442c40ce0b..10200ff3c8 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rk322x.c +++ b/drivers/pinctrl/rockchip/pinctrl-rk322x.c @@ -208,6 +208,29 @@ static void rk3228_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, *bit *= ROCKCHIP_DRV_BITS_PER_PIN; } +static int rk3228_set_drive(struct rockchip_pin_bank *bank, + int pin_num, int strength) +{ + struct regmap *regmap; + int reg, ret; + u32 data; + u8 bit; + int type = bank->drv[pin_num / 8].drv_type; + + rk3228_calc_drv_reg_and_bit(bank, pin_num, ®map, ®, &bit); + ret = rockchip_translate_drive_value(type, strength); + if (ret < 0) { + debug("unsupported driver strength %d\n", strength); + return ret; + } + + /* enable the write to the equivalent lower bits */ + data = ((1 << ROCKCHIP_DRV_BITS_PER_PIN) - 1) << (bit + 16); + data |= (ret << bit); + ret = regmap_write(regmap, reg, data); + return ret; +} + static struct rockchip_pin_bank rk3228_pin_banks[] = { PIN_BANK(0, 32, "gpio0"), PIN_BANK(1, 32, "gpio1"), @@ -225,7 +248,7 @@ static struct rockchip_pin_ctrl rk3228_pin_ctrl = { .niomux_routes = ARRAY_SIZE(rk3228_mux_route_data), .set_mux = rk3228_set_mux, .pull_calc_reg = rk3228_calc_pull_reg_and_bit, - .drv_calc_reg = rk3228_calc_drv_reg_and_bit, + .set_drive = rk3228_set_drive, }; static const struct udevice_id rk3228_pinctrl_ids[] = { |