Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
mfd: adp5585: Add support for a reset pin
Make sure to perform an Hardware reset during probe if the pin is given
in FW.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20250701-dev-adp5589-fw-v7-20-b1fcfe9e9826@analog.com
Signed-off-by: Lee Jones <lee@kernel.org>
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drivers/mfd/adp5585.c
+16
drivers/mfd/adp5585.c
···
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/i2c.h>
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#include <linux/gpio/consumer.h>
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#include <linux/mfd/adp5585.h>
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#include <linux/mfd/core.h>
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#include <linux/mod_devicetable.h>
···
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{
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struct regmap_config *regmap_config;
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struct adp5585_dev *adp5585;
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struct gpio_desc *gpio;
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unsigned int id;
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int ret;
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···
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ret = devm_regulator_get_enable(&i2c->dev, "vdd");
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if (ret)
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return ret;
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gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_HIGH);
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if (IS_ERR(gpio))
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return PTR_ERR(gpio);
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/*
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* Note the timings are not documented anywhere in the datasheet. They are just
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* reasonable values that work.
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*/
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if (gpio) {
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fsleep(30);
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gpiod_set_value_cansleep(gpio, 0);
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fsleep(60);
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}
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adp5585->regmap = devm_regmap_init_i2c(i2c, regmap_config);
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if (IS_ERR(adp5585->regmap))