USB: musb: only turn off vbus in OTG hosts

[safe/jmp/linux-2.6] / drivers / gpio / pca953x.c

diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 92583cd..8dc0164 100644 (file)
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -23,21 +23,25 @@
 #define PCA953X_INVERT         2
 #define PCA953X_DIRECTION      3
 
-/* This is temporary - in 2.6.26 i2c_driver_data should replace it. */
-struct pca953x_desc {
-       char            name[I2C_NAME_SIZE];
-       unsigned long   driver_data;
-};
-
-static const struct pca953x_desc pca953x_descs[] = {
+static const struct i2c_device_id pca953x_id[] = {
        { "pca9534", 8, },
        { "pca9535", 16, },
        { "pca9536", 4, },
        { "pca9537", 4, },
        { "pca9538", 8, },
        { "pca9539", 16, },
-       /* REVISIT several pca955x parts should work here too */
+       { "pca9554", 8, },
+       { "pca9555", 16, },
+       { "pca9557", 8, },
+
+       { "max7310", 8, },
+       { "pca6107", 8, },
+       { "tca6408", 8, },
+       { "tca6416", 16, },
+       /* NYET:  { "tca6424", 24, }, */
+       { }
 };
+MODULE_DEVICE_TABLE(i2c, pca953x_id);
 
 struct pca953x_chip {
        unsigned gpio_start;
@@ -48,9 +52,6 @@ struct pca953x_chip {
        struct gpio_chip gpio_chip;
 };
 
-/* NOTE:  we can't currently rely on fault codes to come from SMBus
- * calls, so we map all errors to EIO here and return zero otherwise.
- */
 static int pca953x_write_reg(struct pca953x_chip *chip, int reg, uint16_t val)
 {
        int ret;
@@ -62,7 +63,7 @@ static int pca953x_write_reg(struct pca953x_chip *chip, int reg, uint16_t val)
 
        if (ret < 0) {
                dev_err(&chip->client->dev, "failed writing register\n");
-               return -EIO;
+               return ret;
        }
 
        return 0;
@@ -79,7 +80,7 @@ static int pca953x_read_reg(struct pca953x_chip *chip, int reg, uint16_t *val)
 
        if (ret < 0) {
                dev_err(&chip->client->dev, "failed reading register\n");
-               return -EIO;
+               return ret;
        }
 
        *val = (uint16_t)ret;
@@ -184,31 +185,27 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios)
        gc->direction_output = pca953x_gpio_direction_output;
        gc->get = pca953x_gpio_get_value;
        gc->set = pca953x_gpio_set_value;
+       gc->can_sleep = 1;
 
        gc->base = chip->gpio_start;
        gc->ngpio = gpios;
        gc->label = chip->client->name;
+       gc->dev = &chip->client->dev;
+       gc->owner = THIS_MODULE;
 }
 
-static int __devinit pca953x_probe(struct i2c_client *client)
+static int __devinit pca953x_probe(struct i2c_client *client,
+                                  const struct i2c_device_id *id)
 {
        struct pca953x_platform_data *pdata;
        struct pca953x_chip *chip;
-       int ret, i;
-       const struct pca953x_desc *id = NULL;
+       int ret;
 
        pdata = client->dev.platform_data;
-       if (pdata == NULL)
-               return -ENODEV;
-
-       /* this loop vanishes when we get i2c_device_id */
-       for (i = 0; i < ARRAY_SIZE(pca953x_descs); i++)
-               if (!strcmp(pca953x_descs[i].name, client->name)) {
-                       id = pca953x_descs + i;
-                       break;
-               }
-       if (!id)
-               return -ENODEV;
+       if (pdata == NULL) {
+               dev_dbg(&client->dev, "no platform data\n");
+               return -EINVAL;
+       }
 
        chip = kzalloc(sizeof(struct pca953x_chip), GFP_KERNEL);
        if (chip == NULL)
@@ -289,13 +286,17 @@ static struct i2c_driver pca953x_driver = {
        },
        .probe          = pca953x_probe,
        .remove         = pca953x_remove,
+       .id_table       = pca953x_id,
 };
 
 static int __init pca953x_init(void)
 {
        return i2c_add_driver(&pca953x_driver);
 }
-module_init(pca953x_init);
+/* register after i2c postcore initcall and before
+ * subsys initcalls that may rely on these GPIOs
+ */
+subsys_initcall(pca953x_init);
 
 static void __exit pca953x_exit(void)
 {