diff options
Diffstat (limited to 'drivers/power/regulator/pca9450.c')
| -rw-r--r-- | drivers/power/regulator/pca9450.c | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/drivers/power/regulator/pca9450.c b/drivers/power/regulator/pca9450.c index a2a34244723..3bb0c71dde7 100644 --- a/drivers/power/regulator/pca9450.c +++ b/drivers/power/regulator/pca9450.c @@ -7,9 +7,12 @@ * ROHM BD71837 regulator driver */ +#include <asm-generic/gpio.h> #include <dm.h> +#include <dm/device_compat.h> #include <log.h> #include <linux/bitops.h> +#include <linux/err.h> #include <power/pca9450.h> #include <power/pmic.h> #include <power/regulator.h> @@ -52,6 +55,8 @@ struct pca9450_plat { u8 volt_mask; struct pca9450_vrange *ranges; unsigned int numranges; + struct gpio_desc *sd_vsel_gpio; + bool sd_vsel_fixed_low; }; #define PCA_RANGE(_min, _vstep, _sel_low, _sel_hi) \ @@ -144,7 +149,7 @@ static struct pca9450_plat pca9450_reg_data[] = { PCA_DATA("LDO4", PCA9450_LDO4CTRL, HW_STATE_CONTROL, PCA9450_LDO4CTRL, PCA9450_LDO34_MASK, pca9450_ldo34_vranges), - PCA_DATA("LDO5", PCA9450_LDO5CTRL_H, HW_STATE_CONTROL, + PCA_DATA("LDO5", PCA9450_LDO5CTRL_L, HW_STATE_CONTROL, PCA9450_LDO5CTRL_H, PCA9450_LDO5_MASK, pca9450_ldo5_vranges), }; @@ -222,13 +227,24 @@ static int pca9450_set_enable(struct udevice *dev, bool enable) val); } +static u8 pca9450_get_vsel_reg(struct pca9450_plat *plat) +{ + if (!strcmp(plat->name, "LDO5") && + ((plat->sd_vsel_gpio && !dm_gpio_get_value(plat->sd_vsel_gpio)) || + plat->sd_vsel_fixed_low)) { + return PCA9450_LDO5CTRL_L; + } + + return plat->volt_reg; +} + static int pca9450_get_value(struct udevice *dev) { struct pca9450_plat *plat = dev_get_plat(dev); unsigned int reg, tmp; int i, ret; - ret = pmic_reg_read(dev->parent, plat->volt_reg); + ret = pmic_reg_read(dev->parent, pca9450_get_vsel_reg(plat)); if (ret < 0) return ret; @@ -274,7 +290,7 @@ static int pca9450_set_value(struct udevice *dev, int uvolt) if (!found) return -EINVAL; - return pmic_clrsetbits(dev->parent, plat->volt_reg, + return pmic_clrsetbits(dev->parent, pca9450_get_vsel_reg(plat), plat->volt_mask, sel); } @@ -335,6 +351,21 @@ static int pca9450_regulator_probe(struct udevice *dev) *plat = pca9450_reg_data[i]; + if (!strcmp(plat->name, "LDO5")) { + if (CONFIG_IS_ENABLED(DM_GPIO) && CONFIG_IS_ENABLED(DM_REGULATOR_PCA9450)) { + plat->sd_vsel_gpio = devm_gpiod_get_optional(dev, "sd-vsel", + GPIOD_IS_IN); + if (IS_ERR(plat->sd_vsel_gpio)) { + ret = PTR_ERR(plat->sd_vsel_gpio); + dev_err(dev, "Failed to request SD_VSEL GPIO: %d\n", ret); + if (ret) + return ret; + } + } + + plat->sd_vsel_fixed_low = dev_read_bool(dev, "nxp,sd-vsel-fixed-low"); + } + return 0; } |