i2c: Convert most new-style drivers to use module aliasing

Based on earlier work by Jon Smirl and Jochen Friedrich.

Update most new-style i2c drivers to use standard module aliasing
instead of the old driver_name/type driver matching scheme. I've
left the video drivers apart (except for SoC camera drivers) as
they're a bit more diffcult to deal with, they'll have their own
patch later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jon Smirl <jonsmirl@gmail.com>
Cc: Jochen Friedrich <jochen@scram.de>

1 files changed, 5 insertions, 18 deletions

diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 2670519236e5..5a99e81d2784 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -23,13 +23,7 @@
 #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, },
@@ -37,7 +31,9 @@ static const struct pca953x_desc pca953x_descs[] = {
         { "pca9538", 8, },
         { "pca9539", 16, },
         /* REVISIT several pca955x parts should work here too */
+        { }
 };
+MODULE_DEVICE_TABLE(i2c, pca953x_id);
 
 struct pca953x_chip {
         unsigned gpio_start;
@@ -193,26 +189,16 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios)
 }
 
 static int __devinit pca953x_probe(struct i2c_client *client,
-                                   const struct i2c_device_id *did)
+                                   const struct i2c_device_id *id)
 {
         struct pca953x_platform_data *pdata;
         struct pca953x_chip *chip;
         int ret, i;
-        const struct pca953x_desc *id = NULL;
 
         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;
-
         chip = kzalloc(sizeof(struct pca953x_chip), GFP_KERNEL);
         if (chip == NULL)
                 return -ENOMEM;
@@ -292,6 +278,7 @@ static struct i2c_driver pca953x_driver = {
         },
         .probe          = pca953x_probe,
         .remove         = pca953x_remove,
+        .id_table       = pca953x_id,
 };
 
 static int __init pca953x_init(void)