ALSA: keywest: Convert to new-style i2c driver

The legacy i2c binding model is going away soon, so convert the ppc
keywest sound driver to the new model or it will break.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 41 insertions, 41 deletions

diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
index 6ff99ed77516..a5afb2682e7f 100644
--- a/sound/ppc/keywest.c
+++ b/sound/ppc/keywest.c
@@ -33,26 +33,25 @@
 static struct pmac_keywest *keywest_ctx;
 
 
-static int keywest_attach_adapter(struct i2c_adapter *adapter);
-static int keywest_detach_client(struct i2c_client *client);
-
-struct i2c_driver keywest_driver = {  
-        .driver = {
-                .name = "PMac Keywest Audio",
-        },
-        .attach_adapter = &keywest_attach_adapter,
-        .detach_client = &keywest_detach_client,
-};
-
-
 #ifndef i2c_device_name
 #define i2c_device_name(x)      ((x)->name)
 #endif
 
+static int keywest_probe(struct i2c_client *client,
+                         const struct i2c_device_id *id)
+{
+        i2c_set_clientdata(client, keywest_ctx);
+        return 0;
+}
+
+/*
+ * This is kind of a hack, best would be to turn powermac to fixed i2c
+ * bus numbers and declare the sound device as part of platform
+ * initialization
+ */
 static int keywest_attach_adapter(struct i2c_adapter *adapter)
 {
-        int err;
-        struct i2c_client *new_client;
+        struct i2c_board_info info;
 
         if (! keywest_ctx)
                 return -EINVAL;
@@ -60,46 +59,47 @@ static int keywest_attach_adapter(struct i2c_adapter *adapter)
         if (strncmp(i2c_device_name(adapter), "mac-io", 6))
                 return 0; /* ignored */
 
-        new_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-        if (! new_client)
-                return -ENOMEM;
-
-        new_client->addr = keywest_ctx->addr;
-        i2c_set_clientdata(new_client, keywest_ctx);
-        new_client->adapter = adapter;
-        new_client->driver = &keywest_driver;
-        new_client->flags = 0;
-
-        strcpy(i2c_device_name(new_client), keywest_ctx->name);
-        keywest_ctx->client = new_client;
+        memset(&info, 0, sizeof(struct i2c_board_info));
+        strlcpy(info.type, "keywest", I2C_NAME_SIZE);
+        info.addr = keywest_ctx->addr;
+        keywest_ctx->client = i2c_new_device(adapter, &info);
         
-        /* Tell the i2c layer a new client has arrived */
-        if (i2c_attach_client(new_client)) {
-                snd_printk(KERN_ERR "tumbler: cannot attach i2c client\n");
-                err = -ENODEV;
-                goto __err;
-        }
-
+        /*
+         * Let i2c-core delete that device on driver removal.
+         * This is safe because i2c-core holds the core_lock mutex for us.
+         */
+        list_add_tail(&keywest_ctx->client->detected,
+                      &keywest_ctx->client->driver->clients);
         return 0;
-
- __err:
-        kfree(new_client);
-        keywest_ctx->client = NULL;
-        return err;
 }
 
-static int keywest_detach_client(struct i2c_client *client)
+static int keywest_remove(struct i2c_client *client)
 {
+        i2c_set_clientdata(client, NULL);
         if (! keywest_ctx)
                 return 0;
         if (client == keywest_ctx->client)
                 keywest_ctx->client = NULL;
 
-        i2c_detach_client(client);
-        kfree(client);
         return 0;
 }
 
+
+static const struct i2c_device_id keywest_i2c_id[] = {
+        { "keywest", 0 },
+        { }
+};
+
+struct i2c_driver keywest_driver = {
+        .driver = {
+                .name = "PMac Keywest Audio",
+        },
+        .attach_adapter = keywest_attach_adapter,
+        .probe = keywest_probe,
+        .remove = keywest_remove,
+        .id_table = keywest_i2c_id,
+};
+
 /* exported */
 void snd_pmac_keywest_cleanup(struct pmac_keywest *i2c)
 {