bc914532a0
Pull MFD updates from Lee Jones: "New Device Support: - Add support for 88pm860; 88pm80x - Add support for 24c08 EEPROM; at24 - Add support for Broxton Whiskey Cove; intel* - Add support for RTS522A; rts5227 - Add support for I2C devices; intel_quark_i2c_gpio New Functionality: - Add microphone support; arizona - Add general purpose switch support; arizona - Add fuel-gauge support; da9150-core - Add shutdown support; sec-core - Add charger support; tps65217 - Add flexible serial communication unit support; atmel-flexcom - Add power button support; axp20x - Add led-flash support; rt5033 Core Frameworks: - Supply a generic macro for defining Regmap IRQs - Rework ACPI child device matching Fix-ups: - Use Regmap to access registers; tps6105x - Use DEFINE_RES_IRQ_NAMED() macro; da9150 - Re-arrange device registration order; intel_quark_i2c_gpio - Allow OF matching; cros_ec_i2c, atmel-hlcdc, hi6421-pmic, max8997, sm501 - Handle deferred probe; twl6040 - Improve accuracy of headphone detect; arizona - Unnecessary MODULE_ALIAS() removal; bcm590xx, rt5033 - Remove unused code; htc-i2cpld, arizona, pcf50633-irq, sec-core - Simplify code; kempld, rts5209, da903x, lm3533, da9052, arizona - Remove #iffery; arizona - DT binding adaptions; many Bug Fixes: - Fix possible NULL pointer dereference; wm831x, tps6105x - Fix 64bit bug; intel_soc_pmic_bxtwc - Fix signedness issue; arizona" * tag 'mfd-for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (73 commits) bindings: mfd: s2mps11: Add documentation for s2mps15 PMIC mfd: sec-core: Remove unused s2mpu02-rtc and s2mpu02-clk children extcon: arizona: Add extcon specific device tree binding document MAINTAINERS: Add binding docs for Cirrus Logic/Wolfson Arizona devices mfd: arizona: Remove bindings covered in new subsystem specific docs mfd: rt5033: Add RT5033 Flash led sub device mfd: lpss: Add Intel Broxton PCI IDs mfd: lpss: Add Broxton ACPI IDs mfd: arizona: Signedness bug in arizona_runtime_suspend() mfd: axp20x: Add a cell for the power button part of the, axp288 PMICs mfd: dt-bindings: Document pulled down WRSTBI pin on S2MPS1X mfd: sec-core: Disable buck voltage reset on watchdog falling edge mfd: sec-core: Dump PMIC revision to find out the HW mfd: arizona: Use correct type ID for device tree config mfd: arizona: Remove use of codec build config #ifdefs mfd: arizona: Simplify adding subdevices mfd: arizona: Downgrade type mismatch messages to dev_warn mfd: arizona: Factor out checking of jack detection state mfd: arizona: Factor out DCVDD isolation control mfd: Make TPS6105X select REGMAP_I2C ...
111 lines
2.4 KiB
C
111 lines
2.4 KiB
C
/*
|
|
* SPI access for Dialog DA9052 PMICs.
|
|
*
|
|
* Copyright(c) 2011 Dialog Semiconductor Ltd.
|
|
*
|
|
* Author: David Dajun Chen <dchen@diasemi.com>
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/module.h>
|
|
#include <linux/input.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/spi/spi.h>
|
|
#include <linux/err.h>
|
|
|
|
#include <linux/mfd/da9052/da9052.h>
|
|
|
|
static int da9052_spi_probe(struct spi_device *spi)
|
|
{
|
|
struct regmap_config config;
|
|
int ret;
|
|
const struct spi_device_id *id = spi_get_device_id(spi);
|
|
struct da9052 *da9052;
|
|
|
|
da9052 = devm_kzalloc(&spi->dev, sizeof(struct da9052), GFP_KERNEL);
|
|
if (!da9052)
|
|
return -ENOMEM;
|
|
|
|
spi->mode = SPI_MODE_0;
|
|
spi->bits_per_word = 8;
|
|
spi_setup(spi);
|
|
|
|
da9052->dev = &spi->dev;
|
|
da9052->chip_irq = spi->irq;
|
|
|
|
spi_set_drvdata(spi, da9052);
|
|
|
|
config = da9052_regmap_config;
|
|
config.read_flag_mask = 1;
|
|
config.reg_bits = 7;
|
|
config.pad_bits = 1;
|
|
config.val_bits = 8;
|
|
config.use_single_rw = 1;
|
|
|
|
da9052->regmap = devm_regmap_init_spi(spi, &config);
|
|
if (IS_ERR(da9052->regmap)) {
|
|
ret = PTR_ERR(da9052->regmap);
|
|
dev_err(&spi->dev, "Failed to allocate register map: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
return da9052_device_init(da9052, id->driver_data);
|
|
}
|
|
|
|
static int da9052_spi_remove(struct spi_device *spi)
|
|
{
|
|
struct da9052 *da9052 = spi_get_drvdata(spi);
|
|
|
|
da9052_device_exit(da9052);
|
|
return 0;
|
|
}
|
|
|
|
static struct spi_device_id da9052_spi_id[] = {
|
|
{"da9052", DA9052},
|
|
{"da9053-aa", DA9053_AA},
|
|
{"da9053-ba", DA9053_BA},
|
|
{"da9053-bb", DA9053_BB},
|
|
{"da9053-bc", DA9053_BC},
|
|
{}
|
|
};
|
|
|
|
static struct spi_driver da9052_spi_driver = {
|
|
.probe = da9052_spi_probe,
|
|
.remove = da9052_spi_remove,
|
|
.id_table = da9052_spi_id,
|
|
.driver = {
|
|
.name = "da9052",
|
|
},
|
|
};
|
|
|
|
static int __init da9052_spi_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = spi_register_driver(&da9052_spi_driver);
|
|
if (ret != 0) {
|
|
pr_err("Failed to register DA9052 SPI driver, %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
subsys_initcall(da9052_spi_init);
|
|
|
|
static void __exit da9052_spi_exit(void)
|
|
{
|
|
spi_unregister_driver(&da9052_spi_driver);
|
|
}
|
|
module_exit(da9052_spi_exit);
|
|
|
|
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
|
|
MODULE_DESCRIPTION("SPI driver for Dialog DA9052 PMIC");
|
|
MODULE_LICENSE("GPL");
|