*/
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/platform_device.h>
#include <linux/i2c.h>
-#include <linux/err.h>
#include <linux/regmap.h>
#include <linux/mfd/88pm860x.h>
-#include <linux/slab.h>
int pm860x_reg_read(struct i2c_client *i2c, int reg)
{
unsigned char msgbuf0[I2C_SMBUS_BLOCK_MAX + 3];
unsigned char msgbuf1[I2C_SMBUS_BLOCK_MAX + 2];
struct i2c_adapter *adap = i2c->adapter;
- struct i2c_msg msg[2] = {{i2c->addr, 0, 1, msgbuf0},
- {i2c->addr, I2C_M_RD, 0, msgbuf1},
+ struct i2c_msg msg[2] = {
+ {
+ .addr = i2c->addr,
+ .flags = 0,
+ .len = 1,
+ .buf = msgbuf0
+ },
+ { .addr = i2c->addr,
+ .flags = I2C_M_RD,
+ .len = 0,
+ .buf = msgbuf1
+ },
};
int num = 1, ret = 0;
return ret;
}
EXPORT_SYMBOL(pm860x_page_set_bits);
-
-static const struct i2c_device_id pm860x_id_table[] = {
- { "88PM860x", 0 },
- {}
-};
-MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
-
-static int verify_addr(struct i2c_client *i2c)
-{
- unsigned short addr_8607[] = {0x30, 0x34};
- unsigned short addr_8606[] = {0x10, 0x11};
- int size, i;
-
- if (i2c == NULL)
- return 0;
- size = ARRAY_SIZE(addr_8606);
- for (i = 0; i < size; i++) {
- if (i2c->addr == *(addr_8606 + i))
- return CHIP_PM8606;
- }
- size = ARRAY_SIZE(addr_8607);
- for (i = 0; i < size; i++) {
- if (i2c->addr == *(addr_8607 + i))
- return CHIP_PM8607;
- }
- return 0;
-}
-
-static struct regmap_config pm860x_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
-};
-
-static int __devinit pm860x_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct pm860x_platform_data *pdata = client->dev.platform_data;
- struct pm860x_chip *chip;
- int ret;
-
- if (!pdata) {
- pr_info("No platform data in %s!\n", __func__);
- return -EINVAL;
- }
-
- chip = kzalloc(sizeof(struct pm860x_chip), GFP_KERNEL);
- if (chip == NULL)
- return -ENOMEM;
-
- chip->id = verify_addr(client);
- chip->regmap = regmap_init_i2c(client, &pm860x_regmap_config);
- if (IS_ERR(chip->regmap)) {
- ret = PTR_ERR(chip->regmap);
- dev_err(&client->dev, "Failed to allocate register map: %d\n",
- ret);
- kfree(chip);
- return ret;
- }
- chip->client = client;
- i2c_set_clientdata(client, chip);
- chip->dev = &client->dev;
- dev_set_drvdata(chip->dev, chip);
-
- /*
- * Both client and companion client shares same platform driver.
- * Driver distinguishes them by pdata->companion_addr.
- * pdata->companion_addr is only assigned if companion chip exists.
- * At the same time, the companion_addr shouldn't equal to client
- * address.
- */
- if (pdata->companion_addr && (pdata->companion_addr != client->addr)) {
- chip->companion_addr = pdata->companion_addr;
- chip->companion = i2c_new_dummy(chip->client->adapter,
- chip->companion_addr);
- chip->regmap_companion = regmap_init_i2c(chip->companion,
- &pm860x_regmap_config);
- if (IS_ERR(chip->regmap_companion)) {
- ret = PTR_ERR(chip->regmap_companion);
- dev_err(&chip->companion->dev,
- "Failed to allocate register map: %d\n", ret);
- return ret;
- }
- i2c_set_clientdata(chip->companion, chip);
- }
-
- pm860x_device_init(chip, pdata);
- return 0;
-}
-
-static int __devexit pm860x_remove(struct i2c_client *client)
-{
- struct pm860x_chip *chip = i2c_get_clientdata(client);
-
- pm860x_device_exit(chip);
- if (chip->companion) {
- regmap_exit(chip->regmap_companion);
- i2c_unregister_device(chip->companion);
- }
- regmap_exit(chip->regmap);
- kfree(chip);
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int pm860x_suspend(struct device *dev)
-{
- struct i2c_client *client = container_of(dev, struct i2c_client, dev);
- struct pm860x_chip *chip = i2c_get_clientdata(client);
-
- if (device_may_wakeup(dev) && chip->wakeup_flag)
- enable_irq_wake(chip->core_irq);
- return 0;
-}
-
-static int pm860x_resume(struct device *dev)
-{
- struct i2c_client *client = container_of(dev, struct i2c_client, dev);
- struct pm860x_chip *chip = i2c_get_clientdata(client);
-
- if (device_may_wakeup(dev) && chip->wakeup_flag)
- disable_irq_wake(chip->core_irq);
- return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume);
-
-static struct i2c_driver pm860x_driver = {
- .driver = {
- .name = "88PM860x",
- .owner = THIS_MODULE,
- .pm = &pm860x_pm_ops,
- },
- .probe = pm860x_probe,
- .remove = __devexit_p(pm860x_remove),
- .id_table = pm860x_id_table,
-};
-
-static int __init pm860x_i2c_init(void)
-{
- int ret;
- ret = i2c_add_driver(&pm860x_driver);
- if (ret != 0)
- pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
- return ret;
-}
-subsys_initcall(pm860x_i2c_init);
-
-static void __exit pm860x_i2c_exit(void)
-{
- i2c_del_driver(&pm860x_driver);
-}
-module_exit(pm860x_i2c_exit);
-
-MODULE_DESCRIPTION("I2C Driver for Marvell 88PM860x");
-MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
-MODULE_LICENSE("GPL");
projects / cascardo / linux.git / blobdiff