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iio: potentiometer: mcp4531: Add device tree binding

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This patch adds the necessary device tree binding to allow DT probing of
currently supported parts.

Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Florian Vaussard 2016-06-30 09:34:50 +02:00 committed by Jonathan Cameron
parent deec2fadff
commit 2dc2e1899e
1 changed files with 86 additions and 1 deletions
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87
drivers/iio/potentiometer/mcp4531.c
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@ -31,6 +31,8 @@
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/iio/iio.h>
@ -188,12 +190,89 @@ static const struct iio_info mcp4531_info = {
.driver_module = THIS_MODULE,
};
#ifdef CONFIG_OF
#define MCP4531_COMPATIBLE(of_compatible, cfg) { \
.compatible = of_compatible, \
.data = &mcp4531_cfg[cfg], \
}
static const struct of_device_id mcp4531_of_match[] = {
MCP4531_COMPATIBLE("microchip,mcp4531-502", MCP453x_502),
MCP4531_COMPATIBLE("microchip,mcp4531-103", MCP453x_103),
MCP4531_COMPATIBLE("microchip,mcp4531-503", MCP453x_503),
MCP4531_COMPATIBLE("microchip,mcp4531-104", MCP453x_104),
MCP4531_COMPATIBLE("microchip,mcp4532-502", MCP453x_502),
MCP4531_COMPATIBLE("microchip,mcp4532-103", MCP453x_103),
MCP4531_COMPATIBLE("microchip,mcp4532-503", MCP453x_503),
MCP4531_COMPATIBLE("microchip,mcp4532-104", MCP453x_104),
MCP4531_COMPATIBLE("microchip,mcp4541-502", MCP454x_502),
MCP4531_COMPATIBLE("microchip,mcp4541-103", MCP454x_103),
MCP4531_COMPATIBLE("microchip,mcp4541-503", MCP454x_503),
MCP4531_COMPATIBLE("microchip,mcp4541-104", MCP454x_104),
MCP4531_COMPATIBLE("microchip,mcp4542-502", MCP454x_502),
MCP4531_COMPATIBLE("microchip,mcp4542-103", MCP454x_103),
MCP4531_COMPATIBLE("microchip,mcp4542-503", MCP454x_503),
MCP4531_COMPATIBLE("microchip,mcp4542-104", MCP454x_104),
MCP4531_COMPATIBLE("microchip,mcp4551-502", MCP455x_502),
MCP4531_COMPATIBLE("microchip,mcp4551-103", MCP455x_103),
MCP4531_COMPATIBLE("microchip,mcp4551-503", MCP455x_503),
MCP4531_COMPATIBLE("microchip,mcp4551-104", MCP455x_104),
MCP4531_COMPATIBLE("microchip,mcp4552-502", MCP455x_502),
MCP4531_COMPATIBLE("microchip,mcp4552-103", MCP455x_103),
MCP4531_COMPATIBLE("microchip,mcp4552-503", MCP455x_503),
MCP4531_COMPATIBLE("microchip,mcp4552-104", MCP455x_104),
MCP4531_COMPATIBLE("microchip,mcp4561-502", MCP456x_502),
MCP4531_COMPATIBLE("microchip,mcp4561-103", MCP456x_103),
MCP4531_COMPATIBLE("microchip,mcp4561-503", MCP456x_503),
MCP4531_COMPATIBLE("microchip,mcp4561-104", MCP456x_104),
MCP4531_COMPATIBLE("microchip,mcp4562-502", MCP456x_502),
MCP4531_COMPATIBLE("microchip,mcp4562-103", MCP456x_103),
MCP4531_COMPATIBLE("microchip,mcp4562-503", MCP456x_503),
MCP4531_COMPATIBLE("microchip,mcp4562-104", MCP456x_104),
MCP4531_COMPATIBLE("microchip,mcp4631-502", MCP463x_502),
MCP4531_COMPATIBLE("microchip,mcp4631-103", MCP463x_103),
MCP4531_COMPATIBLE("microchip,mcp4631-503", MCP463x_503),
MCP4531_COMPATIBLE("microchip,mcp4631-104", MCP463x_104),
MCP4531_COMPATIBLE("microchip,mcp4632-502", MCP463x_502),
MCP4531_COMPATIBLE("microchip,mcp4632-103", MCP463x_103),
MCP4531_COMPATIBLE("microchip,mcp4632-503", MCP463x_503),
MCP4531_COMPATIBLE("microchip,mcp4632-104", MCP463x_104),
MCP4531_COMPATIBLE("microchip,mcp4641-502", MCP464x_502),
MCP4531_COMPATIBLE("microchip,mcp4641-103", MCP464x_103),
MCP4531_COMPATIBLE("microchip,mcp4641-503", MCP464x_503),
MCP4531_COMPATIBLE("microchip,mcp4641-104", MCP464x_104),
MCP4531_COMPATIBLE("microchip,mcp4642-502", MCP464x_502),
MCP4531_COMPATIBLE("microchip,mcp4642-103", MCP464x_103),
MCP4531_COMPATIBLE("microchip,mcp4642-503", MCP464x_503),
MCP4531_COMPATIBLE("microchip,mcp4642-104", MCP464x_104),
MCP4531_COMPATIBLE("microchip,mcp4651-502", MCP465x_502),
MCP4531_COMPATIBLE("microchip,mcp4651-103", MCP465x_103),
MCP4531_COMPATIBLE("microchip,mcp4651-503", MCP465x_503),
MCP4531_COMPATIBLE("microchip,mcp4651-104", MCP465x_104),
MCP4531_COMPATIBLE("microchip,mcp4652-502", MCP465x_502),
MCP4531_COMPATIBLE("microchip,mcp4652-103", MCP465x_103),
MCP4531_COMPATIBLE("microchip,mcp4652-503", MCP465x_503),
MCP4531_COMPATIBLE("microchip,mcp4652-104", MCP465x_104),
MCP4531_COMPATIBLE("microchip,mcp4661-502", MCP466x_502),
MCP4531_COMPATIBLE("microchip,mcp4661-103", MCP466x_103),
MCP4531_COMPATIBLE("microchip,mcp4661-503", MCP466x_503),
MCP4531_COMPATIBLE("microchip,mcp4661-104", MCP466x_104),
MCP4531_COMPATIBLE("microchip,mcp4662-502", MCP466x_502),
MCP4531_COMPATIBLE("microchip,mcp4662-103", MCP466x_103),
MCP4531_COMPATIBLE("microchip,mcp4662-503", MCP466x_503),
MCP4531_COMPATIBLE("microchip,mcp4662-104", MCP466x_104),
{ /* sentinel */ }
};
#endif
static int mcp4531_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct mcp4531_data *data;
struct iio_dev *indio_dev;
const struct of_device_id *match;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_WORD_DATA)) {
@ -207,7 +286,12 @@ static int mcp4531_probe(struct i2c_client *client,
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
data->client = client;
data->cfg = &mcp4531_cfg[id->driver_data];
match = of_match_device(of_match_ptr(mcp4531_of_match), dev);
if (match)
data->cfg = of_device_get_match_data(dev);
else
data->cfg = &mcp4531_cfg[id->driver_data];
indio_dev->dev.parent = dev;
indio_dev->info = &mcp4531_info;
@ -290,6 +374,7 @@ MODULE_DEVICE_TABLE(i2c, mcp4531_id);
static struct i2c_driver mcp4531_driver = {
.driver = {
.name = "mcp4531",
.of_match_table = of_match_ptr(mcp4531_of_match),
},
.probe = mcp4531_probe,
.id_table = mcp4531_id,