This patch adds the necessary device tree binding to allow DT probing of
currently supported parts.
Signed-off-by: Florian Vaussard <florian.vauss...@heig-vd.ch>
---
drivers/iio/potentiometer/mcp4531.c | 273 +++++++++++++++++++++++++++++++++++-
1 file changed, 272 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/potentiometer/mcp4531.c
b/drivers/iio/potentiometer/mcp4531.c
index 2251173..bf7b853 100644
--- a/drivers/iio/potentiometer/mcp4531.c
+++ b/drivers/iio/potentiometer/mcp4531.c
@@ -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 +190,275 @@ static const struct iio_info mcp4531_info = {
.driver_module = THIS_MODULE,
};
+#ifdef CONFIG_OF
+static const struct of_device_id mcp4531_of_match[] = {
+ {
+ .compatible = "microchip,mcp4531-502",
+ .data = &mcp4531_cfg[MCP453x_502]
+ },
+ {
+ .compatible = "microchip,mcp4531-103",
+ .data = &mcp4531_cfg[MCP453x_103]
+ },
+ {
+ .compatible = "microchip,mcp4531-503",
+ .data = &mcp4531_cfg[MCP453x_503]
+ },
+ {
+ .compatible = "microchip,mcp4531-104",
+ .data = &mcp4531_cfg[MCP453x_104]
+ },
+ {
+ .compatible = "microchip,mcp4532-502",
+ .data = &mcp4531_cfg[MCP453x_502]
+ },
+ {
+ .compatible = "microchip,mcp4532-103",
+ .data = &mcp4531_cfg[MCP453x_103]
+ },
+ {
+ .compatible = "microchip,mcp4532-503",
+ .data = &mcp4531_cfg[MCP453x_503]
+ },
+ {
+ .compatible = "microchip,mcp4532-104",
+ .data = &mcp4531_cfg[MCP453x_104]
+ },
+ {
+ .compatible = "microchip,mcp4541-502",
+ .data = &mcp4531_cfg[MCP454x_502]
+ },
+ {
+ .compatible = "microchip,mcp4541-103",
+ .data = &mcp4531_cfg[MCP454x_103]
+ },
+ {
+ .compatible = "microchip,mcp4541-503",
+ .data = &mcp4531_cfg[MCP454x_503]
+ },
+ {
+ .compatible = "microchip,mcp4541-104",
+ .data = &mcp4531_cfg[MCP454x_104]
+ },
+ {
+ .compatible = "microchip,mcp4542-502",
+ .data = &mcp4531_cfg[MCP454x_502]
+ },
+ {
+ .compatible = "microchip,mcp4542-103",
+ .data = &mcp4531_cfg[MCP454x_103]
+ },
+ {
+ .compatible = "microchip,mcp4542-503",
+ .data = &mcp4531_cfg[MCP454x_503]
+ },
+ {
+ .compatible = "microchip,mcp4542-104",
+ .data = &mcp4531_cfg[MCP454x_104]
+ },
+ {
+ .compatible = "microchip,mcp4551-502",
+ .data = &mcp4531_cfg[MCP455x_502]
+ },
+ {
+ .compatible = "microchip,mcp4551-103",
+ .data = &mcp4531_cfg[MCP455x_103]
+ },
+ {
+ .compatible = "microchip,mcp4551-503",
+ .data = &mcp4531_cfg[MCP455x_503]
+ },
+ {
+ .compatible = "microchip,mcp4551-104",
+ .data = &mcp4531_cfg[MCP455x_104]
+ },
+ {
+ .compatible = "microchip,mcp4552-502",
+ .data = &mcp4531_cfg[MCP455x_502]
+ },
+ {
+ .compatible = "microchip,mcp4552-103",
+ .data = &mcp4531_cfg[MCP455x_103]
+ },
+ {
+ .compatible = "microchip,mcp4552-503",
+ .data = &mcp4531_cfg[MCP455x_503]
+ },
+ {
+ .compatible = "microchip,mcp4552-104",
+ .data = &mcp4531_cfg[MCP455x_104]
+ },
+ {
+ .compatible = "microchip,mcp4561-502",
+ .data = &mcp4531_cfg[MCP456x_502]
+ },
+ {
+ .compatible = "microchip,mcp4561-103",
+ .data = &mcp4531_cfg[MCP456x_103]
+ },
+ {
+ .compatible = "microchip,mcp4561-503",
+ .data = &mcp4531_cfg[MCP456x_503]
+ },
+ {
+ .compatible = "microchip,mcp4561-104",
+ .data = &mcp4531_cfg[MCP456x_104]
+ },
+ {
+ .compatible = "microchip,mcp4562-502",
+ .data = &mcp4531_cfg[MCP456x_502]
+ },
+ {
+ .compatible = "microchip,mcp4562-103",
+ .data = &mcp4531_cfg[MCP456x_103]
+ },
+ {
+ .compatible = "microchip,mcp4562-503",
+ .data = &mcp4531_cfg[MCP456x_503]
+ },
+ {
+ .compatible = "microchip,mcp4562-104",
+ .data = &mcp4531_cfg[MCP456x_104]
+ },
+ {
+ .compatible = "microchip,mcp4631-502",
+ .data = &mcp4531_cfg[MCP463x_502]
+ },
+ {
+ .compatible = "microchip,mcp4631-103",
+ .data = &mcp4531_cfg[MCP463x_103]
+ },
+ {
+ .compatible = "microchip,mcp4631-503",
+ .data = &mcp4531_cfg[MCP463x_503]
+ },
+ {
+ .compatible = "microchip,mcp4631-104",
+ .data = &mcp4531_cfg[MCP463x_104]
+ },
+ {
+ .compatible = "microchip,mcp4632-502",
+ .data = &mcp4531_cfg[MCP463x_502]
+ },
+ {
+ .compatible = "microchip,mcp4632-103",
+ .data = &mcp4531_cfg[MCP463x_103]
+ },
+ {
+ .compatible = "microchip,mcp4632-503",
+ .data = &mcp4531_cfg[MCP463x_503]
+ },
+ {
+ .compatible = "microchip,mcp4632-104",
+ .data = &mcp4531_cfg[MCP463x_104]
+ },
+ {
+ .compatible = "microchip,mcp4641-502",
+ .data = &mcp4531_cfg[MCP464x_502]
+ },
+ {
+ .compatible = "microchip,mcp4641-103",
+ .data = &mcp4531_cfg[MCP464x_103]
+ },
+ {
+ .compatible = "microchip,mcp4641-503",
+ .data = &mcp4531_cfg[MCP464x_503]
+ },
+ {
+ .compatible = "microchip,mcp4641-104",
+ .data = &mcp4531_cfg[MCP464x_104]
+ },
+ {
+ .compatible = "microchip,mcp4642-502",
+ .data = &mcp4531_cfg[MCP464x_502]
+ },
+ {
+ .compatible = "microchip,mcp4642-103",
+ .data = &mcp4531_cfg[MCP464x_103]
+ },
+ {
+ .compatible = "microchip,mcp4642-503",
+ .data = &mcp4531_cfg[MCP464x_503]
+ },
+ {
+ .compatible = "microchip,mcp4642-104",
+ .data = &mcp4531_cfg[MCP464x_104]
+ },
+ {
+ .compatible = "microchip,mcp4651-502",
+ .data = &mcp4531_cfg[MCP465x_502]
+ },
+ {
+ .compatible = "microchip,mcp4651-103",
+ .data = &mcp4531_cfg[MCP465x_103]
+ },
+ {
+ .compatible = "microchip,mcp4651-503",
+ .data = &mcp4531_cfg[MCP465x_503]
+ },
+ {
+ .compatible = "microchip,mcp4651-104",
+ .data = &mcp4531_cfg[MCP465x_104]
+ },
+ {
+ .compatible = "microchip,mcp4652-502",
+ .data = &mcp4531_cfg[MCP465x_502]
+ },
+ {
+ .compatible = "microchip,mcp4652-103",
+ .data = &mcp4531_cfg[MCP465x_103]
+ },
+ {
+ .compatible = "microchip,mcp4652-503",
+ .data = &mcp4531_cfg[MCP465x_503]
+ },
+ {
+ .compatible = "microchip,mcp4652-104",
+ .data = &mcp4531_cfg[MCP465x_104]
+ },
+ {
+ .compatible = "microchip,mcp4661-502",
+ .data = &mcp4531_cfg[MCP466x_502]
+ },
+ {
+ .compatible = "microchip,mcp4661-103",
+ .data = &mcp4531_cfg[MCP466x_103]
+ },
+ {
+ .compatible = "microchip,mcp4661-503",
+ .data = &mcp4531_cfg[MCP466x_503]
+ },
+ {
+ .compatible = "microchip,mcp4661-104",
+ .data = &mcp4531_cfg[MCP466x_104]
+ },
+ {
+ .compatible = "microchip,mcp4662-502",
+ .data = &mcp4531_cfg[MCP466x_502]
+ },
+ {
+ .compatible = "microchip,mcp4662-103",
+ .data = &mcp4531_cfg[MCP466x_103]
+ },
+ {
+ .compatible = "microchip,mcp4662-503",
+ .data = &mcp4531_cfg[MCP466x_503]
+ },
+ {
+ .compatible = "microchip,mcp4662-104",
+ .data = &mcp4531_cfg[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 +472,12 @@ 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 +560,7 @@ 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,
--
2.5.5
