diff options
| author | Jean Delvare <khali@linux-fr.org> | 2008-04-29 23:11:40 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@hyperion.delvare> | 2008-04-29 23:11:40 +0200 |
| commit | 3760f736716f74bdc62a4ba5406934338da93eb2 (patch) | |
| tree | e28e22c6655dd62566f1b7a99f9354a31bf9d06e /drivers/gpio/pcf857x.c | |
| parent | i2c: Add support for device alias names (diff) | |
| download | linux-3760f736716f74bdc62a4ba5406934338da93eb2.tar.xz linux-3760f736716f74bdc62a4ba5406934338da93eb2.zip | |
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>
Diffstat (limited to 'drivers/gpio/pcf857x.c')
| -rw-r--r-- | drivers/gpio/pcf857x.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/drivers/gpio/pcf857x.c b/drivers/gpio/pcf857x.c index 8856870dd738..aa6cc8b2a2bc 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 @@ -173,13 +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; @@ -199,13 +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; @@ -314,6 +318,7 @@ static struct i2c_driver pcf857x_driver = { }, .probe = pcf857x_probe, .remove = pcf857x_remove, + .id_table = pcf857x_id, }; static int __init pcf857x_init(void) |