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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 08:30:54 +07:00
regulator: lp8755: new driver for LP8755
This patch is for new lp8755 regulator dirver and several unsed variables were deleted and then test was done. LP8755 : The LP8755 is a high performance power management unit.It contains six step-down DC-DC converters which can can be filexibly bundled together in multiphase converters as required by application. www.ti.com Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
parent
a49f0d1ea3
commit
b59320cc5a
@ -277,6 +277,15 @@ config REGULATOR_LP872X
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help
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This driver supports LP8720/LP8725 PMIC
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config REGULATOR_LP8755
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tristate "TI LP8755 High Performance PMU driver"
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depends on I2C
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select REGMAP_I2C
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help
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This driver supports LP8755 High Performance PMU driver. This
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chip contains six step-down DC/DC converters which can support
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9 mode multiphase configuration.
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config REGULATOR_LP8788
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bool "TI LP8788 Power Regulators"
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depends on MFD_LP8788
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@ -30,6 +30,7 @@ obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o
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obj-$(CONFIG_REGULATOR_LP872X) += lp872x.o
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obj-$(CONFIG_REGULATOR_LP8788) += lp8788-buck.o
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obj-$(CONFIG_REGULATOR_LP8788) += lp8788-ldo.o
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obj-$(CONFIG_REGULATOR_LP8755) += lp8755.o
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obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o
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obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o
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obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o
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580
drivers/regulator/lp8755.c
Normal file
580
drivers/regulator/lp8755.c
Normal file
@ -0,0 +1,580 @@
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/*
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* LP8755 High Performance Power Management Unit : System Interface Driver
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* (based on rev. 0.26)
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* Copyright 2012 Texas Instruments
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*
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* Author: Daniel(Geon Si) Jeong <daniel.jeong@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/err.h>
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#include <linux/irq.h>
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#include <linux/interrupt.h>
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#include <linux/gpio.h>
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#include <linux/regmap.h>
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#include <linux/delay.h>
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#include <linux/uaccess.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/platform_data/lp8755.h>
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#define LP8755_REG_BUCK0 0x00
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#define LP8755_REG_BUCK1 0x03
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#define LP8755_REG_BUCK2 0x04
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#define LP8755_REG_BUCK3 0x01
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#define LP8755_REG_BUCK4 0x05
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#define LP8755_REG_BUCK5 0x02
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#define LP8755_REG_MAX 0xFF
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#define LP8755_BUCK_EN_M BIT(7)
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#define LP8755_BUCK_LINEAR_OUT_MAX 0x76
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#define LP8755_BUCK_VOUT_M 0x7F
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enum bucks {
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BUCK0 = 0,
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BUCK1,
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BUCK2,
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BUCK3,
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BUCK4,
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BUCK5,
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};
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struct lp8755_mphase {
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int nreg;
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int buck_num[LP8755_BUCK_MAX];
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};
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struct lp8755_chip {
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struct device *dev;
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struct regmap *regmap;
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struct lp8755_platform_data *pdata;
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int irq;
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unsigned int irqmask;
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int mphase;
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struct regulator_dev *rdev[LP8755_BUCK_MAX];
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};
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/**
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*lp8755_read : read a single register value from lp8755.
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*@pchip : device to read from
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*@reg : register to read from
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*@val : pointer to store read value
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*/
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static int lp8755_read(struct lp8755_chip *pchip, unsigned int reg,
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unsigned int *val)
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{
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return regmap_read(pchip->regmap, reg, val);
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}
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/**
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*lp8755_write : write a single register value to lp8755.
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*@pchip : device to write to
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*@reg : register to write to
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*@val : value to be written
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*/
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static int lp8755_write(struct lp8755_chip *pchip, unsigned int reg,
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unsigned int val)
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{
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return regmap_write(pchip->regmap, reg, val);
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}
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/**
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*lp8755_update_bits : set the values of bit fields in lp8755 register.
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*@pchip : device to read from
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*@reg : register to update
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*@mask : bitmask to be changed
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*@val : value for bitmask
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*/
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static int lp8755_update_bits(struct lp8755_chip *pchip, unsigned int reg,
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unsigned int mask, unsigned int val)
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{
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return regmap_update_bits(pchip->regmap, reg, mask, val);
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}
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static int lp8755_buck_enable_time(struct regulator_dev *rdev)
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{
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int ret;
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unsigned int regval;
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enum lp8755_bucks id = rdev_get_id(rdev);
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struct lp8755_chip *pchip = rdev_get_drvdata(rdev);
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ret = lp8755_read(pchip, 0x12 + id, ®val);
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if (ret < 0) {
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dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
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return ret;
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}
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return (regval & 0xff) * 100;
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}
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static int lp8755_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
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{
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int ret;
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unsigned int regbval = 0x0;
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enum lp8755_bucks id = rdev_get_id(rdev);
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struct lp8755_chip *pchip = rdev_get_drvdata(rdev);
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switch (mode) {
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case REGULATOR_MODE_FAST:
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/* forced pwm mode */
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regbval = (0x01 << id);
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break;
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case REGULATOR_MODE_NORMAL:
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/* enable automatic pwm/pfm mode */
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ret = lp8755_update_bits(pchip, 0x08 + id, 0x20, 0x00);
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if (ret < 0)
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goto err_i2c;
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break;
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case REGULATOR_MODE_IDLE:
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/* enable automatic pwm/pfm/lppfm mode */
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ret = lp8755_update_bits(pchip, 0x08 + id, 0x20, 0x20);
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if (ret < 0)
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goto err_i2c;
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ret = lp8755_update_bits(pchip, 0x10, 0x01, 0x01);
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if (ret < 0)
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goto err_i2c;
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break;
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default:
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dev_err(pchip->dev, "Not supported buck mode %s\n", __func__);
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/* forced pwm mode */
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regbval = (0x01 << id);
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}
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ret = lp8755_update_bits(pchip, 0x06, 0x01 << id, regbval);
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if (ret < 0)
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goto err_i2c;
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return ret;
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err_i2c:
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dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
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return ret;
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}
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static unsigned int lp8755_buck_get_mode(struct regulator_dev *rdev)
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{
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int ret;
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unsigned int regval;
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enum lp8755_bucks id = rdev_get_id(rdev);
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struct lp8755_chip *pchip = rdev_get_drvdata(rdev);
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ret = lp8755_read(pchip, 0x06, ®val);
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if (ret < 0)
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goto err_i2c;
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/* mode fast means forced pwm mode */
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if (regval & (0x01 << id))
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return REGULATOR_MODE_FAST;
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ret = lp8755_read(pchip, 0x08 + id, ®val);
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if (ret < 0)
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goto err_i2c;
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/* mode idle means automatic pwm/pfm/lppfm mode */
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if (regval & 0x20)
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return REGULATOR_MODE_IDLE;
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/* mode normal means automatic pwm/pfm mode */
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return REGULATOR_MODE_NORMAL;
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err_i2c:
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dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
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return 0;
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}
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static int lp8755_buck_set_ramp(struct regulator_dev *rdev, int ramp)
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{
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int ret;
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unsigned int regval = 0x00;
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enum lp8755_bucks id = rdev_get_id(rdev);
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struct lp8755_chip *pchip = rdev_get_drvdata(rdev);
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/* uV/us */
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switch (ramp) {
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case 0 ... 230:
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regval = 0x07;
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break;
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case 231 ... 470:
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regval = 0x06;
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break;
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case 471 ... 940:
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regval = 0x05;
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break;
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case 941 ... 1900:
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regval = 0x04;
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break;
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case 1901 ... 3800:
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regval = 0x03;
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break;
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case 3801 ... 7500:
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regval = 0x02;
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break;
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case 7501 ... 15000:
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regval = 0x01;
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break;
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case 15001 ... 30000:
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regval = 0x00;
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break;
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default:
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dev_err(pchip->dev,
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"Not supported ramp value %d %s\n", ramp, __func__);
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return -EINVAL;
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}
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ret = lp8755_update_bits(pchip, 0x07 + id, 0x07, regval);
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if (ret < 0)
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goto err_i2c;
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return ret;
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err_i2c:
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dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
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return ret;
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}
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static struct regulator_ops lp8755_buck_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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.enable_time = lp8755_buck_enable_time,
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.set_mode = lp8755_buck_set_mode,
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.get_mode = lp8755_buck_get_mode,
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.set_ramp_delay = lp8755_buck_set_ramp,
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};
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#define lp8755_rail(_id) "lp8755_buck"#_id
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#define lp8755_buck_init(_id)\
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{\
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.constraints = {\
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.name = lp8755_rail(_id),\
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,\
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.min_uV = 500000,\
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.max_uV = 1675000,\
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},\
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}
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static struct regulator_init_data lp8755_reg_default[LP8755_BUCK_MAX] = {
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[BUCK0] = lp8755_buck_init(0),
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[BUCK1] = lp8755_buck_init(1),
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[BUCK2] = lp8755_buck_init(2),
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[BUCK3] = lp8755_buck_init(3),
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[BUCK4] = lp8755_buck_init(4),
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[BUCK5] = lp8755_buck_init(5),
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};
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static const struct lp8755_mphase mphase_buck[MPHASE_CONF_MAX] = {
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{3, {BUCK0, BUCK3, BUCK5}
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},
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{6, {BUCK0, BUCK1, BUCK2, BUCK3, BUCK4, BUCK5}
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},
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{5, {BUCK0, BUCK2, BUCK3, BUCK4, BUCK5}
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},
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{4, {BUCK0, BUCK3, BUCK4, BUCK5}
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},
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{3, {BUCK0, BUCK4, BUCK5}
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},
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{2, {BUCK0, BUCK5}
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},
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{1, {BUCK0}
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},
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{2, {BUCK0, BUCK3}
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},
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{4, {BUCK0, BUCK2, BUCK3, BUCK5}
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},
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};
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static int lp8755_init_data(struct lp8755_chip *pchip)
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{
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unsigned int regval;
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int ret, icnt, buck_num;
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struct lp8755_platform_data *pdata = pchip->pdata;
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/* read back muti-phase configuration */
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ret = lp8755_read(pchip, 0x3D, ®val);
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if (ret < 0)
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goto out_i2c_error;
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pchip->mphase = regval & 0x07;
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/* set default data based on multi-phase config */
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for (icnt = 0; icnt < mphase_buck[pchip->mphase].nreg; icnt++) {
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buck_num = mphase_buck[pchip->mphase].buck_num[icnt];
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pdata->buck_data[buck_num] = &lp8755_reg_default[buck_num];
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}
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return ret;
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out_i2c_error:
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dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
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return ret;
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}
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#define lp8755_buck_desc(_id)\
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{\
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.name = lp8755_rail(_id),\
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.id = LP8755_BUCK##_id,\
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.ops = &lp8755_buck_ops,\
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.n_voltages = LP8755_BUCK_LINEAR_OUT_MAX+1,\
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.uV_step = 10000,\
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.min_uV = 500000,\
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.type = REGULATOR_VOLTAGE,\
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.owner = THIS_MODULE,\
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.enable_reg = LP8755_REG_BUCK##_id,\
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.enable_mask = LP8755_BUCK_EN_M,\
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.vsel_reg = LP8755_REG_BUCK##_id,\
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.vsel_mask = LP8755_BUCK_VOUT_M,\
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}
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static struct regulator_desc lp8755_regulators[] = {
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lp8755_buck_desc(0),
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lp8755_buck_desc(1),
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lp8755_buck_desc(2),
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lp8755_buck_desc(3),
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lp8755_buck_desc(4),
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lp8755_buck_desc(5),
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};
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static int lp8755_regulator_init(struct lp8755_chip *pchip)
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{
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int ret, icnt, buck_num;
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struct lp8755_platform_data *pdata = pchip->pdata;
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struct regulator_config rconfig = { };
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rconfig.regmap = pchip->regmap;
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rconfig.dev = pchip->dev;
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rconfig.driver_data = pchip;
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for (icnt = 0; icnt < mphase_buck[pchip->mphase].nreg; icnt++) {
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buck_num = mphase_buck[pchip->mphase].buck_num[icnt];
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rconfig.init_data = pdata->buck_data[buck_num];
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rconfig.of_node = pchip->dev->of_node;
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pchip->rdev[buck_num] =
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regulator_register(&lp8755_regulators[buck_num], &rconfig);
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if (IS_ERR(pchip->rdev[buck_num])) {
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ret = PTR_ERR(pchip->rdev[buck_num]);
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dev_err(pchip->dev, "regulator init failed: buck 0\n");
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goto err_buck;
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}
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}
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return 0;
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err_buck:
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for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
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if (pchip->rdev[icnt] != NULL)
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regulator_unregister(pchip->rdev[icnt]);
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return ret;
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}
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static irqreturn_t lp8755_irq_handler(int irq, void *data)
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{
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int ret, icnt;
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unsigned int flag0, flag1;
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struct lp8755_chip *pchip = data;
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/* read flag0 register */
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ret = lp8755_read(pchip, 0x0D, &flag0);
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if (ret < 0)
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goto err_i2c;
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/* clear flag register to pull up int. pin */
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ret = lp8755_write(pchip, 0x0D, 0x00);
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if (ret < 0)
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goto err_i2c;
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/* sent power fault detection event to specific regulator */
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for (icnt = 0; icnt < 6; icnt++)
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if ((flag0 & (0x4 << icnt))
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&& (pchip->irqmask & (0x04 << icnt))
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&& (pchip->rdev[icnt] != NULL))
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regulator_notifier_call_chain(pchip->rdev[icnt],
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LP8755_EVENT_PWR_FAULT,
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NULL);
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/* read flag1 register */
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ret = lp8755_read(pchip, 0x0E, &flag1);
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if (ret < 0)
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goto err_i2c;
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/* clear flag register to pull up int. pin */
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ret = lp8755_write(pchip, 0x0E, 0x00);
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if (ret < 0)
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goto err_i2c;
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/* send OCP event to all regualtor devices */
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if ((flag1 & 0x01) && (pchip->irqmask & 0x01))
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for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
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if (pchip->rdev[icnt] != NULL)
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regulator_notifier_call_chain(pchip->rdev[icnt],
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LP8755_EVENT_OCP,
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NULL);
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/* send OVP event to all regualtor devices */
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if ((flag1 & 0x02) && (pchip->irqmask & 0x02))
|
||||
for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
|
||||
if (pchip->rdev[icnt] != NULL)
|
||||
regulator_notifier_call_chain(pchip->rdev[icnt],
|
||||
LP8755_EVENT_OVP,
|
||||
NULL);
|
||||
return IRQ_HANDLED;
|
||||
|
||||
err_i2c:
|
||||
dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
|
||||
return IRQ_NONE;
|
||||
}
|
||||
|
||||
static int lp8755_int_config(struct lp8755_chip *pchip)
|
||||
{
|
||||
int ret;
|
||||
unsigned int regval;
|
||||
|
||||
if (pchip->irq == 0) {
|
||||
dev_warn(pchip->dev, "not use interrupt : %s\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
ret = lp8755_read(pchip, 0x0F, ®val);
|
||||
if (ret < 0)
|
||||
goto err_i2c;
|
||||
pchip->irqmask = regval;
|
||||
ret = request_threaded_irq(pchip->irq, NULL, lp8755_irq_handler,
|
||||
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
|
||||
"lp8755-irq", pchip);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return ret;
|
||||
|
||||
err_i2c:
|
||||
dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct regmap_config lp8755_regmap = {
|
||||
.reg_bits = 8,
|
||||
.val_bits = 8,
|
||||
.max_register = LP8755_REG_MAX,
|
||||
};
|
||||
|
||||
static int lp8755_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
int ret, icnt;
|
||||
struct lp8755_chip *pchip;
|
||||
struct lp8755_platform_data *pdata = client->dev.platform_data;
|
||||
|
||||
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
||||
dev_err(&client->dev, "i2c functionality check fail.\n");
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
pchip = devm_kzalloc(&client->dev,
|
||||
sizeof(struct lp8755_chip), GFP_KERNEL);
|
||||
if (!pchip)
|
||||
return -ENOMEM;
|
||||
|
||||
pchip->dev = &client->dev;
|
||||
pchip->regmap = devm_regmap_init_i2c(client, &lp8755_regmap);
|
||||
if (IS_ERR(pchip->regmap)) {
|
||||
ret = PTR_ERR(pchip->regmap);
|
||||
dev_err(&client->dev, "fail to allocate regmap %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
i2c_set_clientdata(client, pchip);
|
||||
|
||||
if (pdata != NULL) {
|
||||
pchip->pdata = pdata;
|
||||
pchip->mphase = pdata->mphase;
|
||||
} else {
|
||||
pchip->pdata = devm_kzalloc(pchip->dev,
|
||||
sizeof(struct lp8755_platform_data),
|
||||
GFP_KERNEL);
|
||||
if (!pchip->pdata)
|
||||
return -ENOMEM;
|
||||
ret = lp8755_init_data(pchip);
|
||||
if (ret < 0)
|
||||
goto err_chip_init;
|
||||
}
|
||||
|
||||
ret = lp8755_regulator_init(pchip);
|
||||
if (ret < 0)
|
||||
goto err_regulator;
|
||||
|
||||
pchip->irq = client->irq;
|
||||
ret = lp8755_int_config(pchip);
|
||||
if (ret < 0)
|
||||
goto err_irq;
|
||||
|
||||
return ret;
|
||||
|
||||
err_irq:
|
||||
dev_err(&client->dev, "fail to irq config\n");
|
||||
|
||||
for (icnt = 0; icnt < mphase_buck[pchip->mphase].nreg; icnt++)
|
||||
regulator_unregister(pchip->rdev[icnt]);
|
||||
|
||||
err_regulator:
|
||||
dev_err(&client->dev, "fail to initialize regulators\n");
|
||||
/* output disable */
|
||||
for (icnt = 0; icnt < 0x06; icnt++)
|
||||
lp8755_write(pchip, icnt, 0x00);
|
||||
|
||||
err_chip_init:
|
||||
dev_err(&client->dev, "fail to initialize chip\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int lp8755_remove(struct i2c_client *client)
|
||||
{
|
||||
int icnt;
|
||||
struct lp8755_chip *pchip = i2c_get_clientdata(client);
|
||||
|
||||
for (icnt = 0; icnt < mphase_buck[pchip->mphase].nreg; icnt++)
|
||||
regulator_unregister(pchip->rdev[icnt]);
|
||||
|
||||
for (icnt = 0; icnt < 0x06; icnt++)
|
||||
lp8755_write(pchip, icnt, 0x00);
|
||||
|
||||
if (pchip->irq != 0)
|
||||
free_irq(pchip->irq, pchip);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id lp8755_id[] = {
|
||||
{LP8755_NAME, 0},
|
||||
{}
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(i2c, lp8755_id);
|
||||
|
||||
static struct i2c_driver lp8755_i2c_driver = {
|
||||
.driver = {
|
||||
.name = LP8755_NAME,
|
||||
},
|
||||
.probe = lp8755_probe,
|
||||
.remove = __devexit_p(lp8755_remove),
|
||||
.id_table = lp8755_id,
|
||||
};
|
||||
|
||||
static int __init lp8755_init(void)
|
||||
{
|
||||
return i2c_add_driver(&lp8755_i2c_driver);
|
||||
}
|
||||
|
||||
subsys_initcall(lp8755_init);
|
||||
|
||||
static void __exit lp8755_exit(void)
|
||||
{
|
||||
i2c_del_driver(&lp8755_i2c_driver);
|
||||
}
|
||||
|
||||
module_exit(lp8755_exit);
|
||||
|
||||
MODULE_DESCRIPTION("Texas Instruments lp8755 driver");
|
||||
MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
|
||||
MODULE_LICENSE("GPL v2");
|
71
include/linux/platform_data/lp8755.h
Normal file
71
include/linux/platform_data/lp8755.h
Normal file
@ -0,0 +1,71 @@
|
||||
/*
|
||||
* LP8755 High Performance Power Management Unit Driver:System Interface Driver
|
||||
*
|
||||
* Copyright (C) 2012 Texas Instruments
|
||||
*
|
||||
* Author: Daniel(Geon Si) Jeong <daniel.jeong@ti.com>
|
||||
* G.Shark Jeong <gshark.jeong@gmail.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _LP8755_H
|
||||
#define _LP8755_H
|
||||
|
||||
#include <linux/regulator/consumer.h>
|
||||
|
||||
#define LP8755_NAME "lp8755-regulator"
|
||||
/*
|
||||
*PWR FAULT : power fault detected
|
||||
*OCP : over current protect activated
|
||||
*OVP : over voltage protect activated
|
||||
*TEMP_WARN : thermal warning
|
||||
*TEMP_SHDN : thermal shutdonw detected
|
||||
*I_LOAD : current measured
|
||||
*/
|
||||
#define LP8755_EVENT_PWR_FAULT REGULATOR_EVENT_FAIL
|
||||
#define LP8755_EVENT_OCP REGULATOR_EVENT_OVER_CURRENT
|
||||
#define LP8755_EVENT_OVP 0x10000
|
||||
#define LP8755_EVENT_TEMP_WARN 0x2000
|
||||
#define LP8755_EVENT_TEMP_SHDN REGULATOR_EVENT_OVER_TEMP
|
||||
#define LP8755_EVENT_I_LOAD 0x40000
|
||||
|
||||
enum lp8755_bucks {
|
||||
LP8755_BUCK0 = 0,
|
||||
LP8755_BUCK1,
|
||||
LP8755_BUCK2,
|
||||
LP8755_BUCK3,
|
||||
LP8755_BUCK4,
|
||||
LP8755_BUCK5,
|
||||
LP8755_BUCK_MAX,
|
||||
};
|
||||
|
||||
/**
|
||||
* multiphase configuration options
|
||||
*/
|
||||
enum lp8755_mphase_config {
|
||||
MPHASE_CONF0,
|
||||
MPHASE_CONF1,
|
||||
MPHASE_CONF2,
|
||||
MPHASE_CONF3,
|
||||
MPHASE_CONF4,
|
||||
MPHASE_CONF5,
|
||||
MPHASE_CONF6,
|
||||
MPHASE_CONF7,
|
||||
MPHASE_CONF8,
|
||||
MPHASE_CONF_MAX
|
||||
};
|
||||
|
||||
/**
|
||||
* struct lp8755_platform_data
|
||||
* @mphase_type : Multiphase Switcher Configurations.
|
||||
* @buck_data : buck0~6 init voltage in uV
|
||||
*/
|
||||
struct lp8755_platform_data {
|
||||
int mphase;
|
||||
struct regulator_init_data *buck_data[LP8755_BUCK_MAX];
|
||||
};
|
||||
#endif
|
Loading…
Reference in New Issue
Block a user