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path: root/drivers/iio/potentiometer/mcp4531.c
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Diffstat (limited to 'drivers/iio/potentiometer/mcp4531.c')
-rw-r--r--drivers/iio/potentiometer/mcp4531.c159
1 files changed, 158 insertions, 1 deletions
diff --git a/drivers/iio/potentiometer/mcp4531.c b/drivers/iio/potentiometer/mcp4531.c
index 3b72e1a59..13b6ae2fc 100644
--- a/drivers/iio/potentiometer/mcp4531.c
+++ b/drivers/iio/potentiometer/mcp4531.c
@@ -8,12 +8,20 @@
* DEVID #Wipers #Positions Resistor Opts (kOhm) i2c address
* mcp4531 1 129 5, 10, 50, 100 010111x
* mcp4532 1 129 5, 10, 50, 100 01011xx
+ * mcp4541 1 129 5, 10, 50, 100 010111x
+ * mcp4542 1 129 5, 10, 50, 100 01011xx
* mcp4551 1 257 5, 10, 50, 100 010111x
* mcp4552 1 257 5, 10, 50, 100 01011xx
+ * mcp4561 1 257 5, 10, 50, 100 010111x
+ * mcp4562 1 257 5, 10, 50, 100 01011xx
* mcp4631 2 129 5, 10, 50, 100 0101xxx
* mcp4632 2 129 5, 10, 50, 100 01011xx
+ * mcp4641 2 129 5, 10, 50, 100 0101xxx
+ * mcp4642 2 129 5, 10, 50, 100 01011xx
* mcp4651 2 257 5, 10, 50, 100 0101xxx
* mcp4652 2 257 5, 10, 50, 100 01011xx
+ * mcp4661 2 257 5, 10, 50, 100 0101xxx
+ * mcp4662 2 257 5, 10, 50, 100 01011xx
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
@@ -23,6 +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>
@@ -37,18 +47,34 @@ enum mcp4531_type {
MCP453x_103,
MCP453x_503,
MCP453x_104,
+ MCP454x_502,
+ MCP454x_103,
+ MCP454x_503,
+ MCP454x_104,
MCP455x_502,
MCP455x_103,
MCP455x_503,
MCP455x_104,
+ MCP456x_502,
+ MCP456x_103,
+ MCP456x_503,
+ MCP456x_104,
MCP463x_502,
MCP463x_103,
MCP463x_503,
MCP463x_104,
+ MCP464x_502,
+ MCP464x_103,
+ MCP464x_503,
+ MCP464x_104,
MCP465x_502,
MCP465x_103,
MCP465x_503,
MCP465x_104,
+ MCP466x_502,
+ MCP466x_103,
+ MCP466x_503,
+ MCP466x_104,
};
static const struct mcp4531_cfg mcp4531_cfg[] = {
@@ -56,18 +82,34 @@ static const struct mcp4531_cfg mcp4531_cfg[] = {
[MCP453x_103] = { .wipers = 1, .max_pos = 128, .kohms = 10, },
[MCP453x_503] = { .wipers = 1, .max_pos = 128, .kohms = 50, },
[MCP453x_104] = { .wipers = 1, .max_pos = 128, .kohms = 100, },
+ [MCP454x_502] = { .wipers = 1, .max_pos = 128, .kohms = 5, },
+ [MCP454x_103] = { .wipers = 1, .max_pos = 128, .kohms = 10, },
+ [MCP454x_503] = { .wipers = 1, .max_pos = 128, .kohms = 50, },
+ [MCP454x_104] = { .wipers = 1, .max_pos = 128, .kohms = 100, },
[MCP455x_502] = { .wipers = 1, .max_pos = 256, .kohms = 5, },
[MCP455x_103] = { .wipers = 1, .max_pos = 256, .kohms = 10, },
[MCP455x_503] = { .wipers = 1, .max_pos = 256, .kohms = 50, },
[MCP455x_104] = { .wipers = 1, .max_pos = 256, .kohms = 100, },
+ [MCP456x_502] = { .wipers = 1, .max_pos = 256, .kohms = 5, },
+ [MCP456x_103] = { .wipers = 1, .max_pos = 256, .kohms = 10, },
+ [MCP456x_503] = { .wipers = 1, .max_pos = 256, .kohms = 50, },
+ [MCP456x_104] = { .wipers = 1, .max_pos = 256, .kohms = 100, },
[MCP463x_502] = { .wipers = 2, .max_pos = 128, .kohms = 5, },
[MCP463x_103] = { .wipers = 2, .max_pos = 128, .kohms = 10, },
[MCP463x_503] = { .wipers = 2, .max_pos = 128, .kohms = 50, },
[MCP463x_104] = { .wipers = 2, .max_pos = 128, .kohms = 100, },
+ [MCP464x_502] = { .wipers = 2, .max_pos = 128, .kohms = 5, },
+ [MCP464x_103] = { .wipers = 2, .max_pos = 128, .kohms = 10, },
+ [MCP464x_503] = { .wipers = 2, .max_pos = 128, .kohms = 50, },
+ [MCP464x_104] = { .wipers = 2, .max_pos = 128, .kohms = 100, },
[MCP465x_502] = { .wipers = 2, .max_pos = 256, .kohms = 5, },
[MCP465x_103] = { .wipers = 2, .max_pos = 256, .kohms = 10, },
[MCP465x_503] = { .wipers = 2, .max_pos = 256, .kohms = 50, },
[MCP465x_104] = { .wipers = 2, .max_pos = 256, .kohms = 100, },
+ [MCP466x_502] = { .wipers = 2, .max_pos = 256, .kohms = 5, },
+ [MCP466x_103] = { .wipers = 2, .max_pos = 256, .kohms = 10, },
+ [MCP466x_503] = { .wipers = 2, .max_pos = 256, .kohms = 50, },
+ [MCP466x_104] = { .wipers = 2, .max_pos = 256, .kohms = 100, },
};
#define MCP4531_WRITE (0 << 2)
@@ -148,12 +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)) {
@@ -167,7 +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;
@@ -187,6 +311,14 @@ static const struct i2c_device_id mcp4531_id[] = {
{ "mcp4532-103", MCP453x_103 },
{ "mcp4532-503", MCP453x_503 },
{ "mcp4532-104", MCP453x_104 },
+ { "mcp4541-502", MCP454x_502 },
+ { "mcp4541-103", MCP454x_103 },
+ { "mcp4541-503", MCP454x_503 },
+ { "mcp4541-104", MCP454x_104 },
+ { "mcp4542-502", MCP454x_502 },
+ { "mcp4542-103", MCP454x_103 },
+ { "mcp4542-503", MCP454x_503 },
+ { "mcp4542-104", MCP454x_104 },
{ "mcp4551-502", MCP455x_502 },
{ "mcp4551-103", MCP455x_103 },
{ "mcp4551-503", MCP455x_503 },
@@ -195,6 +327,14 @@ static const struct i2c_device_id mcp4531_id[] = {
{ "mcp4552-103", MCP455x_103 },
{ "mcp4552-503", MCP455x_503 },
{ "mcp4552-104", MCP455x_104 },
+ { "mcp4561-502", MCP456x_502 },
+ { "mcp4561-103", MCP456x_103 },
+ { "mcp4561-503", MCP456x_503 },
+ { "mcp4561-104", MCP456x_104 },
+ { "mcp4562-502", MCP456x_502 },
+ { "mcp4562-103", MCP456x_103 },
+ { "mcp4562-503", MCP456x_503 },
+ { "mcp4562-104", MCP456x_104 },
{ "mcp4631-502", MCP463x_502 },
{ "mcp4631-103", MCP463x_103 },
{ "mcp4631-503", MCP463x_503 },
@@ -203,6 +343,14 @@ static const struct i2c_device_id mcp4531_id[] = {
{ "mcp4632-103", MCP463x_103 },
{ "mcp4632-503", MCP463x_503 },
{ "mcp4632-104", MCP463x_104 },
+ { "mcp4641-502", MCP464x_502 },
+ { "mcp4641-103", MCP464x_103 },
+ { "mcp4641-503", MCP464x_503 },
+ { "mcp4641-104", MCP464x_104 },
+ { "mcp4642-502", MCP464x_502 },
+ { "mcp4642-103", MCP464x_103 },
+ { "mcp4642-503", MCP464x_503 },
+ { "mcp4642-104", MCP464x_104 },
{ "mcp4651-502", MCP465x_502 },
{ "mcp4651-103", MCP465x_103 },
{ "mcp4651-503", MCP465x_503 },
@@ -211,6 +359,14 @@ static const struct i2c_device_id mcp4531_id[] = {
{ "mcp4652-103", MCP465x_103 },
{ "mcp4652-503", MCP465x_503 },
{ "mcp4652-104", MCP465x_104 },
+ { "mcp4661-502", MCP466x_502 },
+ { "mcp4661-103", MCP466x_103 },
+ { "mcp4661-503", MCP466x_503 },
+ { "mcp4661-104", MCP466x_104 },
+ { "mcp4662-502", MCP466x_502 },
+ { "mcp4662-103", MCP466x_103 },
+ { "mcp4662-503", MCP466x_503 },
+ { "mcp4662-104", MCP466x_104 },
{}
};
MODULE_DEVICE_TABLE(i2c, mcp4531_id);
@@ -218,6 +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,
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-05 04:21:29 +0000