diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 14:48:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-29 14:48:31 -0700 |
| commit | b57ab7632b8fc1eef139bbbb7a89002be61f99e1 (patch) | |
| tree | 19d4eeea0dbf721312c4e33a423ed29ff70aff88 /drivers/gpio/pcf857x.c | |
| parent | f12c03722045882a50c270f6332cf2c7b16a83d2 (diff) | |
| parent | 3760f736716f74bdc62a4ba5406934338da93eb2 (diff) | |
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
i2c: Convert most new-style drivers to use module aliasing
i2c: Add support for device alias names
i2c-amd756-s4882: Fix an error path
i2c: Drop unused RTC driver IDs
i2c/tps65010: Add missing intialization of client data
i2c-sis5595: Minor cleanups in sis5595_access
i2c-piix4: Minor cleanups
i2c: Spelling fix (successful)
i2c-stub: No newline in parameter description
Diffstat (limited to 'drivers/gpio/pcf857x.c')
| -rw-r--r-- | drivers/gpio/pcf857x.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/drivers/gpio/pcf857x.c b/drivers/gpio/pcf857x.c index 1106aa15ac7..aa6cc8b2a2b 100644 --- a/drivers/gpio/pcf857x.c +++ b/drivers/gpio/pcf857x.c @@ -26,6 +26,21 @@ #include <asm/gpio.h> +static const struct i2c_device_id pcf857x_id[] = { + { "pcf8574", 8 }, + { "pca8574", 8 }, + { "pca9670", 8 }, + { "pca9672", 8 }, + { "pca9674", 8 }, + { "pcf8575", 16 }, + { "pca8575", 16 }, + { "pca9671", 16 }, + { "pca9673", 16 }, + { "pca9675", 16 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, pcf857x_id); + /* * The pcf857x, pca857x, and pca967x chips only expose one read and one * write register. Writing a "one" bit (to match the reset state) lets @@ -142,7 +157,8 @@ static void pcf857x_set16(struct gpio_chip *chip, unsigned offset, int value) /*-------------------------------------------------------------------------*/ -static int pcf857x_probe(struct i2c_client *client) +static int pcf857x_probe(struct i2c_client *client, + const struct i2c_device_id *id) { struct pcf857x_platform_data *pdata; struct pcf857x *gpio; @@ -172,13 +188,8 @@ static int pcf857x_probe(struct i2c_client *client) * * NOTE: we don't distinguish here between *4 and *4a parts. */ - if (strcmp(client->name, "pcf8574") == 0 - || strcmp(client->name, "pca8574") == 0 - || strcmp(client->name, "pca9670") == 0 - || strcmp(client->name, "pca9672") == 0 - || strcmp(client->name, "pca9674") == 0 - ) { - gpio->chip.ngpio = 8; + gpio->chip.ngpio = id->driver_data; + if (gpio->chip.ngpio == 8) { gpio->chip.direction_input = pcf857x_input8; gpio->chip.get = pcf857x_get8; gpio->chip.direction_output = pcf857x_output8; @@ -198,13 +209,7 @@ static int pcf857x_probe(struct i2c_client *client) * * NOTE: we don't distinguish here between '75 and '75c parts. */ - } else if (strcmp(client->name, "pcf8575") == 0 - || strcmp(client->name, "pca8575") == 0 - || strcmp(client->name, "pca9671") == 0 - || strcmp(client->name, "pca9673") == 0 - || strcmp(client->name, "pca9675") == 0 - ) { - gpio->chip.ngpio = 16; + } else if (gpio->chip.ngpio == 16) { gpio->chip.direction_input = pcf857x_input16; gpio->chip.get = pcf857x_get16; gpio->chip.direction_output = pcf857x_output16; @@ -313,6 +318,7 @@ static struct i2c_driver pcf857x_driver = { }, .probe = pcf857x_probe, .remove = pcf857x_remove, + .id_table = pcf857x_id, }; static int __init pcf857x_init(void) |