mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
d5f39d3862
irq_base of the tps65912 irq platform data should be initialized with the board provided irq_base data. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
177 lines
4 KiB
C
177 lines
4 KiB
C
/*
|
|
* tps65912-core.c -- TI TPS65912x
|
|
*
|
|
* Copyright 2011 Texas Instruments Inc.
|
|
*
|
|
* Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* This driver is based on wm8350 implementation.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/init.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/mfd/tps65912.h>
|
|
|
|
static struct mfd_cell tps65912s[] = {
|
|
{
|
|
.name = "tps65912-pmic",
|
|
},
|
|
};
|
|
|
|
int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
|
|
{
|
|
u8 data;
|
|
int err;
|
|
|
|
mutex_lock(&tps65912->io_mutex);
|
|
|
|
err = tps65912->read(tps65912, reg, 1, &data);
|
|
if (err) {
|
|
dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
|
|
goto out;
|
|
}
|
|
|
|
data |= mask;
|
|
err = tps65912->write(tps65912, reg, 1, &data);
|
|
if (err)
|
|
dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
|
|
|
|
out:
|
|
mutex_unlock(&tps65912->io_mutex);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(tps65912_set_bits);
|
|
|
|
int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
|
|
{
|
|
u8 data;
|
|
int err;
|
|
|
|
mutex_lock(&tps65912->io_mutex);
|
|
err = tps65912->read(tps65912, reg, 1, &data);
|
|
if (err) {
|
|
dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
|
|
goto out;
|
|
}
|
|
|
|
data &= ~mask;
|
|
err = tps65912->write(tps65912, reg, 1, &data);
|
|
if (err)
|
|
dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
|
|
|
|
out:
|
|
mutex_unlock(&tps65912->io_mutex);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(tps65912_clear_bits);
|
|
|
|
static inline int tps65912_read(struct tps65912 *tps65912, u8 reg)
|
|
{
|
|
u8 val;
|
|
int err;
|
|
|
|
err = tps65912->read(tps65912, reg, 1, &val);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return val;
|
|
}
|
|
|
|
static inline int tps65912_write(struct tps65912 *tps65912, u8 reg, u8 val)
|
|
{
|
|
return tps65912->write(tps65912, reg, 1, &val);
|
|
}
|
|
|
|
int tps65912_reg_read(struct tps65912 *tps65912, u8 reg)
|
|
{
|
|
int data;
|
|
|
|
mutex_lock(&tps65912->io_mutex);
|
|
|
|
data = tps65912_read(tps65912, reg);
|
|
if (data < 0)
|
|
dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
|
|
|
|
mutex_unlock(&tps65912->io_mutex);
|
|
return data;
|
|
}
|
|
EXPORT_SYMBOL_GPL(tps65912_reg_read);
|
|
|
|
int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val)
|
|
{
|
|
int err;
|
|
|
|
mutex_lock(&tps65912->io_mutex);
|
|
|
|
err = tps65912_write(tps65912, reg, val);
|
|
if (err < 0)
|
|
dev_err(tps65912->dev, "Write for reg 0x%x failed\n", reg);
|
|
|
|
mutex_unlock(&tps65912->io_mutex);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(tps65912_reg_write);
|
|
|
|
int tps65912_device_init(struct tps65912 *tps65912)
|
|
{
|
|
struct tps65912_board *pmic_plat_data = tps65912->dev->platform_data;
|
|
struct tps65912_platform_data *init_data;
|
|
int ret, dcdc_avs, value;
|
|
|
|
init_data = kzalloc(sizeof(struct tps65912_platform_data), GFP_KERNEL);
|
|
if (init_data == NULL)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&tps65912->io_mutex);
|
|
dev_set_drvdata(tps65912->dev, tps65912);
|
|
|
|
dcdc_avs = (pmic_plat_data->is_dcdc1_avs << 0 |
|
|
pmic_plat_data->is_dcdc2_avs << 1 |
|
|
pmic_plat_data->is_dcdc3_avs << 2 |
|
|
pmic_plat_data->is_dcdc4_avs << 3);
|
|
if (dcdc_avs) {
|
|
tps65912->read(tps65912, TPS65912_I2C_SPI_CFG, 1, &value);
|
|
dcdc_avs |= value;
|
|
tps65912->write(tps65912, TPS65912_I2C_SPI_CFG, 1, &dcdc_avs);
|
|
}
|
|
|
|
ret = mfd_add_devices(tps65912->dev, -1,
|
|
tps65912s, ARRAY_SIZE(tps65912s),
|
|
NULL, 0);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
init_data->irq = pmic_plat_data->irq;
|
|
init_data->irq_base = pmic_plat_data->irq_base;
|
|
ret = tps65912_irq_init(tps65912, init_data->irq, init_data);
|
|
if (ret < 0)
|
|
goto err;
|
|
|
|
kfree(init_data);
|
|
return ret;
|
|
|
|
err:
|
|
kfree(init_data);
|
|
mfd_remove_devices(tps65912->dev);
|
|
kfree(tps65912);
|
|
return ret;
|
|
}
|
|
|
|
void tps65912_device_exit(struct tps65912 *tps65912)
|
|
{
|
|
mfd_remove_devices(tps65912->dev);
|
|
kfree(tps65912);
|
|
}
|
|
|
|
MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>");
|
|
MODULE_DESCRIPTION("TPS65912x chip family multi-function driver");
|
|
MODULE_LICENSE("GPL");
|