diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/tps65090-regulator.c | 77 |
1 files changed, 57 insertions, 20 deletions
diff --git a/drivers/regulator/tps65090-regulator.c b/drivers/regulator/tps65090-regulator.c index 0732d9ba3f40..412413838e12 100644 --- a/drivers/regulator/tps65090-regulator.c +++ b/drivers/regulator/tps65090-regulator.c @@ -18,6 +18,7 @@ #include <linux/module.h> #include <linux/init.h> +#include <linux/gpio.h> #include <linux/slab.h> #include <linux/err.h> #include <linux/platform_device.h> @@ -31,10 +32,13 @@ struct tps65090_regulator { struct regulator_dev *rdev; }; -static struct regulator_ops tps65090_ops = { - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .is_enabled = regulator_is_enabled_regmap, +static struct regulator_ops tps65090_ext_control_ops = { +}; + +static struct regulator_ops tps65090_reg_contol_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, }; static struct regulator_ops tps65090_ldo_ops = { @@ -53,16 +57,16 @@ static struct regulator_ops tps65090_ldo_ops = { } static struct regulator_desc tps65090_regulator_desc[] = { - tps65090_REG_DESC(DCDC1, "vsys1", 0x0C, tps65090_ops), - tps65090_REG_DESC(DCDC2, "vsys2", 0x0D, tps65090_ops), - tps65090_REG_DESC(DCDC3, "vsys3", 0x0E, tps65090_ops), - tps65090_REG_DESC(FET1, "infet1", 0x0F, tps65090_ops), - tps65090_REG_DESC(FET2, "infet2", 0x10, tps65090_ops), - tps65090_REG_DESC(FET3, "infet3", 0x11, tps65090_ops), - tps65090_REG_DESC(FET4, "infet4", 0x12, tps65090_ops), - tps65090_REG_DESC(FET5, "infet5", 0x13, tps65090_ops), - tps65090_REG_DESC(FET6, "infet6", 0x14, tps65090_ops), - tps65090_REG_DESC(FET7, "infet7", 0x15, tps65090_ops), + tps65090_REG_DESC(DCDC1, "vsys1", 0x0C, tps65090_reg_contol_ops), + tps65090_REG_DESC(DCDC2, "vsys2", 0x0D, tps65090_reg_contol_ops), + tps65090_REG_DESC(DCDC3, "vsys3", 0x0E, tps65090_reg_contol_ops), + tps65090_REG_DESC(FET1, "infet1", 0x0F, tps65090_reg_contol_ops), + tps65090_REG_DESC(FET2, "infet2", 0x10, tps65090_reg_contol_ops), + tps65090_REG_DESC(FET3, "infet3", 0x11, tps65090_reg_contol_ops), + tps65090_REG_DESC(FET4, "infet4", 0x12, tps65090_reg_contol_ops), + tps65090_REG_DESC(FET5, "infet5", 0x13, tps65090_reg_contol_ops), + tps65090_REG_DESC(FET6, "infet6", 0x14, tps65090_reg_contol_ops), + tps65090_REG_DESC(FET7, "infet7", 0x15, tps65090_reg_contol_ops), tps65090_REG_DESC(LDO1, "vsys_l1", 0, tps65090_ldo_ops), tps65090_REG_DESC(LDO2, "vsys_l2", 0, tps65090_ldo_ops), }; @@ -118,6 +122,22 @@ static int __devinit tps65090_regulator_disable_ext_control( return tps65090_config_ext_control(ri, false); } +static void __devinit tps65090_configure_regulator_config( + struct tps65090_regulator_plat_data *tps_pdata, + struct regulator_config *config) +{ + if (gpio_is_valid(tps_pdata->gpio)) { + int gpio_flag = GPIOF_OUT_INIT_LOW; + + if (tps_pdata->reg_init_data->constraints.always_on || + tps_pdata->reg_init_data->constraints.boot_on) + gpio_flag = GPIOF_OUT_INIT_HIGH; + + config->ena_gpio = tps_pdata->gpio; + config->ena_gpio_flags = gpio_flag; + } +} + static int __devinit tps65090_regulator_probe(struct platform_device *pdev) { struct tps65090 *tps65090_mfd = dev_get_drvdata(pdev->dev.parent); @@ -154,18 +174,24 @@ static int __devinit tps65090_regulator_probe(struct platform_device *pdev) /* * TPS5090 DCDC support the control from external digital input. - * It may be possible that during boot, the external control is - * enabled. Disabling external control for DCDC. + * Configure it as per platform data. */ if (tps_pdata && is_dcdc(num) && tps_pdata->reg_init_data) { - ret = tps65090_regulator_disable_ext_control( + if (tps_pdata->enable_ext_control) { + tps65090_configure_regulator_config( + tps_pdata, &config); + ri->desc->ops = &tps65090_ext_control_ops; + } else { + ret = tps65090_regulator_disable_ext_control( ri, tps_pdata); - if (ret < 0) { - dev_err(&pdev->dev, + if (ret < 0) { + dev_err(&pdev->dev, "failed disable ext control\n"); - goto scrub; + goto scrub; + } } } + config.dev = &pdev->dev; config.driver_data = ri; config.regmap = tps65090_mfd->rmap; @@ -182,6 +208,17 @@ static int __devinit tps65090_regulator_probe(struct platform_device *pdev) goto scrub; } ri->rdev = rdev; + + /* Enable external control if it is require */ + if (tps_pdata && is_dcdc(num) && tps_pdata->reg_init_data && + tps_pdata->enable_ext_control) { + ret = tps65090_config_ext_control(ri, true); + if (ret < 0) { + /* Increment num to get unregister rdev */ + num++; + goto scrub; + } + } } platform_set_drvdata(pdev, pmic); |
