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authorJean Delvare <khali@linux-fr.org>2009-04-20 22:56:59 +0200
committerTakashi Iwai <tiwai@suse.de>2009-04-21 07:32:04 +0200
commit5de4155bb3760fc13a172c5cef2368ce218ebe1c (patch)
tree0ce635f35c2dcb54da7149e59f566938fdf2eb37 /sound/ppc
parentcfbf1eecd70db9a7a49c42a0613c00f7a2a86dfb (diff)
downloadlinux-5de4155bb3760fc13a172c5cef2368ce218ebe1c.tar.gz
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>
Diffstat (limited to 'sound/ppc')
-rw-r--r--sound/ppc/keywest.c82
1 files changed, 41 insertions, 41 deletions
diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
index 6ff99ed7751..a5afb2682e7 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)
{