sound/aoa: Adapt to new i2c probing scheme

The i2c-powermac driver now creates the i2c devices properly
from the device-tree, including workarounds for broken or
missing device-tree bits, so let's just use the normal probe
methods and get rid of the hand made device creation code.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

2 files changed, 6 insertions, 149 deletions

diff --git a/sound/aoa/codecs/onyx.c b/sound/aoa/codecs/onyx.c
index 270790d384e2..4cedc6950d72 100644
--- a/sound/aoa/codecs/onyx.c
+++ b/sound/aoa/codecs/onyx.c
@@ -997,45 +997,10 @@ static void onyx_exit_codec(struct aoa_codec *codec)
         onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
 }
 
-static int onyx_create(struct i2c_adapter *adapter,
-                       struct device_node *node,
-                       int addr)
-{
-        struct i2c_board_info info;
-        struct i2c_client *client;
-
-        memset(&info, 0, sizeof(struct i2c_board_info));
-        strlcpy(info.type, "aoa_codec_onyx", I2C_NAME_SIZE);
-        info.addr = addr;
-        info.platform_data = node;
-        client = i2c_new_device(adapter, &info);
-        if (!client)
-                return -ENODEV;
-
-        /*
-         * We know the driver is already loaded, so the device should be
-         * already bound. If not it means binding failed, which suggests
-         * the device doesn't really exist and should be deleted.
-         * Ideally this would be replaced by better checks _before_
-         * instantiating the device.
-         */
-        if (!client->driver) {
-                i2c_unregister_device(client);
-                return -ENODEV;
-        }
-
-        /*
-         * 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(&client->detected, &client->driver->clients);
-        return 0;
-}
-
 static int onyx_i2c_probe(struct i2c_client *client,
                           const struct i2c_device_id *id)
 {
-        struct device_node *node = client->dev.platform_data;
+        struct device_node *node = client->dev.of_node;
         struct onyx *onyx;
         u8 dummy;
 
@@ -1071,40 +1036,6 @@ static int onyx_i2c_probe(struct i2c_client *client,
         return -ENODEV;
 }
 
-static int onyx_i2c_attach(struct i2c_adapter *adapter)
-{
-        struct device_node *busnode, *dev = NULL;
-        struct pmac_i2c_bus *bus;
-
-        bus = pmac_i2c_adapter_to_bus(adapter);
-        if (bus == NULL)
-                return -ENODEV;
-        busnode = pmac_i2c_get_bus_node(bus);
-
-        while ((dev = of_get_next_child(busnode, dev)) != NULL) {
-                if (of_device_is_compatible(dev, "pcm3052")) {
-                        const u32 *addr;
-                        printk(KERN_DEBUG PFX "found pcm3052\n");
-                        addr = of_get_property(dev, "reg", NULL);
-                        if (!addr)
-                                return -ENODEV;
-                        return onyx_create(adapter, dev, (*addr)>>1);
-                }
-        }
-
-        /* if that didn't work, try desperate mode for older
-         * machines that have stuff missing from the device tree */
-
-        if (!of_device_is_compatible(busnode, "k2-i2c"))
-                return -ENODEV;
-
-        printk(KERN_DEBUG PFX "found k2-i2c, checking if onyx chip is on it\n");
-        /* probe both possible addresses for the onyx chip */
-        if (onyx_create(adapter, NULL, 0x46) == 0)
-                return 0;
-        return onyx_create(adapter, NULL, 0x47);
-}
-
 static int onyx_i2c_remove(struct i2c_client *client)
 {
         struct onyx *onyx = i2c_get_clientdata(client);
@@ -1117,16 +1048,16 @@ static int onyx_i2c_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id onyx_i2c_id[] = {
-        { "aoa_codec_onyx", 0 },
+        { "MAC,pcm3052", 0 },
         { }
 };
+MODULE_DEVICE_TABLE(i2c,onyx_i2c_id);
 
 static struct i2c_driver onyx_driver = {
         .driver = {
                 .name = "aoa_codec_onyx",
                 .owner = THIS_MODULE,
         },
-        .attach_adapter = onyx_i2c_attach,
         .probe = onyx_i2c_probe,
         .remove = onyx_i2c_remove,
         .id_table = onyx_i2c_id,
diff --git a/sound/aoa/codecs/tas.c b/sound/aoa/codecs/tas.c
index 8e63d1f35ce1..c491ae0f749c 100644
--- a/sound/aoa/codecs/tas.c
+++ b/sound/aoa/codecs/tas.c
@@ -883,43 +883,10 @@ static void tas_exit_codec(struct aoa_codec *codec)
 }
 
 
-static int tas_create(struct i2c_adapter *adapter,
-                       struct device_node *node,
-                       int addr)
-{
-        struct i2c_board_info info;
-        struct i2c_client *client;
-
-        memset(&info, 0, sizeof(struct i2c_board_info));
-        strlcpy(info.type, "aoa_codec_tas", I2C_NAME_SIZE);
-        info.addr = addr;
-        info.platform_data = node;
-
-        client = i2c_new_device(adapter, &info);
-        if (!client)
-                return -ENODEV;
-        /*
-         * We know the driver is already loaded, so the device should be
-         * already bound. If not it means binding failed, and then there
-         * is no point in keeping the device instantiated.
-         */
-        if (!client->driver) {
-                i2c_unregister_device(client);
-                return -ENODEV;
-        }
-
-        /*
-         * 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(&client->detected, &client->driver->clients);
-        return 0;
-}
-
 static int tas_i2c_probe(struct i2c_client *client,
                          const struct i2c_device_id *id)
 {
-        struct device_node *node = client->dev.platform_data;
+        struct device_node *node = client->dev.of_node;
         struct tas *tas;
 
         tas = kzalloc(sizeof(struct tas), GFP_KERNEL);
@@ -953,47 +920,6 @@ static int tas_i2c_probe(struct i2c_client *client,
         return -EINVAL;
 }
 
-static int tas_i2c_attach(struct i2c_adapter *adapter)
-{
-        struct device_node *busnode, *dev = NULL;
-        struct pmac_i2c_bus *bus;
-
-        bus = pmac_i2c_adapter_to_bus(adapter);
-        if (bus == NULL)
-                return -ENODEV;
-        busnode = pmac_i2c_get_bus_node(bus);
-
-        while ((dev = of_get_next_child(busnode, dev)) != NULL) {
-                if (of_device_is_compatible(dev, "tas3004")) {
-                        const u32 *addr;
-                        printk(KERN_DEBUG PFX "found tas3004\n");
-                        addr = of_get_property(dev, "reg", NULL);
-                        if (!addr)
-                                continue;
-                        return tas_create(adapter, dev, ((*addr) >> 1) & 0x7f);
-                }
-                /* older machines have no 'codec' node with a 'compatible'
-                 * property that says 'tas3004', they just have a 'deq'
-                 * node without any such property... */
-                if (strcmp(dev->name, "deq") == 0) {
-                        const u32 *_addr;
-                        u32 addr;
-                        printk(KERN_DEBUG PFX "found 'deq' node\n");
-                        _addr = of_get_property(dev, "i2c-address", NULL);
-                        if (!_addr)
-                                continue;
-                        addr = ((*_addr) >> 1) & 0x7f;
-                        /* now, if the address doesn't match any of the two
-                         * that a tas3004 can have, we cannot handle this.
-                         * I doubt it ever happens but hey. */
-                        if (addr != 0x34 && addr != 0x35)
-                                continue;
-                        return tas_create(adapter, dev, addr);
-                }
-        }
-        return -ENODEV;
-}
-
 static int tas_i2c_remove(struct i2c_client *client)
 {
         struct tas *tas = i2c_get_clientdata(client);
@@ -1011,16 +937,16 @@ static int tas_i2c_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id tas_i2c_id[] = {
-        { "aoa_codec_tas", 0 },
+        { "MAC,tas3004", 0 },
         { }
 };
+MODULE_DEVICE_TABLE(i2c,tas_i2c_id);
 
 static struct i2c_driver tas_driver = {
         .driver = {
                 .name = "aoa_codec_tas",
                 .owner = THIS_MODULE,
         },
-        .attach_adapter = tas_i2c_attach,
         .probe = tas_i2c_probe,
         .remove = tas_i2c_remove,
         .id_table = tas_i2c_id,