[PATCH v5 09/14] mfd: lm3533: Add support for VIN power supply
Svyatoslav Ryhel <[email protected]>
| Newsgroups | org.kernel.vger.linux-fbdev,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-iio,org.kernel.vger.linux-kernel,org.kernel.vger.linux-leds |
|---|---|
| Message-ID | <[email protected]> |
Add support for 2.7V-5.5V VIN power supply. Signed-off-by: Svyatoslav Ryhel <[email protected]> --- drivers/mfd/lm3533-core.c | 23 +++++++++++++++++++++-- include/linux/mfd/lm3533.h | 2 ++ 2 files changed, 23 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/lm3533-core.c b/drivers/mfd/lm3533-core.c index a5aa7da9668b..4b5d94e9ed27 100644 --- a/drivers/mfd/lm3533-core.c +++ b/drivers/mfd/lm3533-core.c @@ -17,6 +17,7 @@ #include <linux/mod_devicetable.h> #include <linux/property.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/uaccess.h> @@ -113,14 +114,25 @@ static int lm3533_set_lvled_config(struct lm3533 *lm3533, u8 lvled, u8 led) return ret; } -static void lm3533_enable(struct lm3533 *lm3533) +static int lm3533_enable(struct lm3533 *lm3533) { + int ret; + + ret = regulator_enable(lm3533->vin_supply); + if (ret) { + dev_err(lm3533->dev, "failed to enable vin power supply\n"); + return ret; + } + gpiod_set_value(lm3533->hwen, 1); + + return 0; } static void lm3533_disable(struct lm3533 *lm3533) { gpiod_set_value(lm3533->hwen, 0); + regulator_disable(lm3533->vin_supply); } enum lm3533_attribute_type { @@ -333,7 +345,9 @@ static int lm3533_device_init(struct lm3533 *lm3533) } } - lm3533_enable(lm3533); + ret = lm3533_enable(lm3533); + if (ret) + return ret; ret = regmap_update_bits(lm3533->regmap, LM3533_REG_BOOST_PWM, LM3533_BOOST_FREQ_MASK, @@ -447,6 +461,11 @@ static int lm3533_i2c_probe(struct i2c_client *i2c) return dev_err_probe(lm3533->dev, PTR_ERR(lm3533->hwen), "failed to get HWEN GPIO\n"); + lm3533->vin_supply = devm_regulator_get(lm3533->dev, "vin"); + if (IS_ERR(lm3533->vin_supply)) + return dev_err_probe(lm3533->dev, PTR_ERR(lm3533->vin_supply), + "failed to get vin-supply\n"); + device_property_read_u32(lm3533->dev, "ti,boost-ovp-microvolt", &lm3533->boost_ovp); diff --git a/include/linux/mfd/lm3533.h b/include/linux/mfd/lm3533.h index 5710e88da45d..8f72dd41e8f0 100644 --- a/include/linux/mfd/lm3533.h +++ b/include/linux/mfd/lm3533.h @@ -22,6 +22,7 @@ struct device; struct gpio_desc; struct regmap; +struct regulator; struct lm3533 { struct device *dev; @@ -29,6 +30,7 @@ struct lm3533 { struct regmap *regmap; struct gpio_desc *hwen; + struct regulator *vin_supply; u32 boost_ovp; u32 boost_freq; -- 2.53.0