diff options
Diffstat (limited to 'drivers/mfd/ab8500-i2c.c')
| -rw-r--r-- | drivers/mfd/ab8500-i2c.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/drivers/mfd/ab8500-i2c.c b/drivers/mfd/ab8500-i2c.c deleted file mode 100644 index 89b31a3409cd..000000000000 --- a/drivers/mfd/ab8500-i2c.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Copyright (C) ST-Ericsson SA 2010 - * Author: Mattias Wallin <mattias.wallin@stericsson.com> for ST-Ericsson. - * License Terms: GNU General Public License v2 - * This file was based on drivers/mfd/ab8500-spi.c - */ - -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/mfd/abx500/ab8500.h> -#include <linux/mfd/dbx500-prcmu.h> - -static int ab8500_i2c_write(struct ab8500 *ab8500, u16 addr, u8 data) -{ - int ret; - - ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1); - if (ret < 0) - dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); - return ret; -} - -static int ab8500_i2c_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask, - u8 data) -{ - int ret; - - ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data, - &mask, 1); - if (ret < 0) - dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); - return ret; -} - -static int ab8500_i2c_read(struct ab8500 *ab8500, u16 addr) -{ - int ret; - u8 data; - - ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1); - if (ret < 0) { - dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); - return ret; - } - return (int)data; -} - -static int __devinit ab8500_i2c_probe(struct platform_device *plf) -{ - const struct platform_device_id *platid = platform_get_device_id(plf); - struct ab8500 *ab8500; - struct resource *resource; - int ret; - - ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL); - if (!ab8500) - return -ENOMEM; - - ab8500->dev = &plf->dev; - - resource = platform_get_resource(plf, IORESOURCE_IRQ, 0); - if (!resource) { - kfree(ab8500); - return -ENODEV; - } - - ab8500->irq = resource->start; - - ab8500->read = ab8500_i2c_read; - ab8500->write = ab8500_i2c_write; - ab8500->write_masked = ab8500_i2c_write_masked; - - platform_set_drvdata(plf, ab8500); - - ret = ab8500_init(ab8500, platid->driver_data); - if (ret) - kfree(ab8500); - - - return ret; -} - -static int __devexit ab8500_i2c_remove(struct platform_device *plf) -{ - struct ab8500 *ab8500 = platform_get_drvdata(plf); - - ab8500_exit(ab8500); - kfree(ab8500); - - return 0; -} - -static const struct platform_device_id ab8500_id[] = { - { "ab8500-i2c", AB8500_VERSION_AB8500 }, - { "ab8505-i2c", AB8500_VERSION_AB8505 }, - { "ab9540-i2c", AB8500_VERSION_AB9540 }, - { "ab8540-i2c", AB8500_VERSION_AB8540 }, - { } -}; - -#ifdef CONFIG_PM -static int ab8500_i2c_suspend(struct device *dev) -{ - struct ab8500 *ab = dev_get_drvdata(dev); - - disable_irq(ab->irq); - enable_irq_wake(ab->irq); - - return 0; -} - -static int ab8500_i2c_resume(struct device *dev) -{ - struct ab8500 *ab = dev_get_drvdata(dev); - - disable_irq_wake(ab->irq); - enable_irq(ab->irq); - - return 0; -} - -static const struct dev_pm_ops ab8500_i2c_pm_ops = { - .suspend = ab8500_i2c_suspend, - .resume = ab8500_i2c_resume, -}; - -#define AB8500_I2C_PM_OPS (&ab8500_i2c_pm_ops) -#else -#define AB8500_I2C_PM_OPS NULL -#endif - -static struct platform_driver ab8500_i2c_driver = { - .driver = { - .name = "ab8500-i2c", - .owner = THIS_MODULE, - .pm = AB8500_I2C_PM_OPS, - }, - .probe = ab8500_i2c_probe, - .remove = __devexit_p(ab8500_i2c_remove), - .id_table = ab8500_id, -}; - -static int __init ab8500_i2c_init(void) -{ - return platform_driver_register(&ab8500_i2c_driver); -} - -static void __exit ab8500_i2c_exit(void) -{ - platform_driver_unregister(&ab8500_i2c_driver); -} -arch_initcall(ab8500_i2c_init); -module_exit(ab8500_i2c_exit); - -MODULE_AUTHOR("Mattias WALLIN <mattias.wallin@stericsson.com"); -MODULE_DESCRIPTION("AB8500 Core access via PRCMU I2C"); -MODULE_LICENSE("GPL v2"); |