diff options
| author | AnilKumar Ch <anilkumar@ti.com> | 2012-09-26 13:58:26 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-26 14:18:48 -0700 |
| commit | 5dc2db05f2f690d71d95979b14cca50ab8e49f40 (patch) | |
| tree | ffb1a14b446fc9f380a5ea11d3e2c5dd8d535c31 /drivers | |
| parent | 79df8d27d9f4382647c31ef17f7402833d682b73 (diff) | |
| download | linux-5dc2db05f2f690d71d95979b14cca50ab8e49f40.tar.bz2 | |
drivers/misc/lis3lv02d/lis3lv02d_i2c.c: add lis3lv02d device tree init
Add lis3lv02d device tree initialization code/API to take pdata from
device node. Also adds device tree init matching table support to
lis3lv02d_i2c driver. If the driver data is passed from device tree, then
this driver picks up platform data from device node through common/generic
lis3lv02d.c driver.
[akpm@linux-foundation.org: fix CONFIG_OF=n build]
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Cc: Eric Piel <eric.piel@tremplin-utc.net>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/lis3lv02d/lis3lv02d_i2c.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c index 2c0a1148ee22..60ec8689d6e3 100644 --- a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c +++ b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c @@ -31,6 +31,10 @@ #include <linux/i2c.h> #include <linux/pm_runtime.h> #include <linux/delay.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/of_device.h> + #include "lis3lv02d.h" #define DRV_NAME "lis3lv02d_i2c" @@ -102,12 +106,30 @@ static int lis3_i2c_init(struct lis3lv02d *lis3) static union axis_conversion lis3lv02d_axis_map = { .as_array = { LIS3_DEV_X, LIS3_DEV_Y, LIS3_DEV_Z } }; +#ifdef CONFIG_OF +static struct of_device_id lis3lv02d_i2c_dt_ids[] = { + { .compatible = "st,lis3lv02d" }, + {} +}; +MODULE_DEVICE_TABLE(of, lis3lv02d_i2c_dt_ids); +#endif + static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { int ret = 0; struct lis3lv02d_platform_data *pdata = client->dev.platform_data; +#ifdef CONFIG_OF + if (of_match_device(lis3lv02d_i2c_dt_ids, &client->dev)) { + lis3_dev.of_node = client->dev.of_node; + ret = lis3lv02d_init_dt(&lis3_dev); + if (ret) + return ret; + pdata = lis3_dev.pdata; + } +#endif + if (pdata) { if ((pdata->driver_features & LIS3_USE_BLOCK_READ) && (i2c_check_functionality(client->adapter, @@ -255,6 +277,7 @@ static struct i2c_driver lis3lv02d_i2c_driver = { .name = DRV_NAME, .owner = THIS_MODULE, .pm = &lis3_pm_ops, + .of_match_table = of_match_ptr(lis3lv02d_i2c_dt_ids), }, .probe = lis3lv02d_i2c_probe, .remove = __devexit_p(lis3lv02d_i2c_remove), |