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 ...
112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/*
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* arizona-spi.c -- Arizona SPI bus interface
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*
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* Copyright 2012 Wolfson Microelectronics plc
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.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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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <linux/slab.h>
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#include <linux/spi/spi.h>
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#include <linux/of.h>
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#include <linux/mfd/arizona/core.h>
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#include "arizona.h"
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static int arizona_spi_probe(struct spi_device *spi)
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{
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const struct spi_device_id *id = spi_get_device_id(spi);
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struct arizona *arizona;
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const struct regmap_config *regmap_config = NULL;
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unsigned long type;
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int ret;
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if (spi->dev.of_node)
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type = arizona_of_get_type(&spi->dev);
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else
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type = id->driver_data;
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switch (type) {
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case WM5102:
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if (IS_ENABLED(CONFIG_MFD_WM5102))
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regmap_config = &wm5102_spi_regmap;
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break;
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case WM5110:
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case WM8280:
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if (IS_ENABLED(CONFIG_MFD_WM5110))
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regmap_config = &wm5110_spi_regmap;
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break;
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default:
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dev_err(&spi->dev, "Unknown device type %ld\n", type);
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return -EINVAL;
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}
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if (!regmap_config) {
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dev_err(&spi->dev,
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"No kernel support for device type %ld\n", type);
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return -EINVAL;
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}
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arizona = devm_kzalloc(&spi->dev, sizeof(*arizona), GFP_KERNEL);
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if (arizona == NULL)
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return -ENOMEM;
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arizona->regmap = devm_regmap_init_spi(spi, regmap_config);
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if (IS_ERR(arizona->regmap)) {
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ret = PTR_ERR(arizona->regmap);
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dev_err(&spi->dev, "Failed to allocate register map: %d\n",
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ret);
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return ret;
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}
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arizona->type = type;
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arizona->dev = &spi->dev;
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arizona->irq = spi->irq;
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return arizona_dev_init(arizona);
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}
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static int arizona_spi_remove(struct spi_device *spi)
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{
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struct arizona *arizona = spi_get_drvdata(spi);
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arizona_dev_exit(arizona);
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return 0;
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}
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static const struct spi_device_id arizona_spi_ids[] = {
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{ "wm5102", WM5102 },
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{ "wm5110", WM5110 },
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{ "wm8280", WM8280 },
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{ },
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};
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MODULE_DEVICE_TABLE(spi, arizona_spi_ids);
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static struct spi_driver arizona_spi_driver = {
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.driver = {
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.name = "arizona",
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.pm = &arizona_pm_ops,
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.of_match_table = of_match_ptr(arizona_of_match),
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},
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.probe = arizona_spi_probe,
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.remove = arizona_spi_remove,
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.id_table = arizona_spi_ids,
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};
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module_spi_driver(arizona_spi_driver);
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MODULE_DESCRIPTION("Arizona SPI bus interface");
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MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
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MODULE_LICENSE("GPL");
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