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Diffstat (limited to 'drivers/iio/dac/ti-dac5571.c')
-rw-r--r--drivers/iio/dac/ti-dac5571.c132
1 files changed, 66 insertions, 66 deletions
diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index f6dcd8bce2b0..bdc3f94aef98 100644
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -1,28 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ti-dac5571.c - Texas Instruments 8/10/12-bit 1/4-channel DAC driver
*
* Copyright (C) 2018 Prevas A/S
*
- * http://www.ti.com/lit/ds/symlink/dac5571.pdf
- * http://www.ti.com/lit/ds/symlink/dac6571.pdf
- * http://www.ti.com/lit/ds/symlink/dac7571.pdf
- * http://www.ti.com/lit/ds/symlink/dac5574.pdf
- * http://www.ti.com/lit/ds/symlink/dac6574.pdf
- * http://www.ti.com/lit/ds/symlink/dac7574.pdf
- * http://www.ti.com/lit/ds/symlink/dac5573.pdf
- * http://www.ti.com/lit/ds/symlink/dac6573.pdf
- * http://www.ti.com/lit/ds/symlink/dac7573.pdf
- *
- * 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 the Free Software Foundation.
+ * https://www.ti.com/lit/ds/symlink/dac5571.pdf
+ * https://www.ti.com/lit/ds/symlink/dac6571.pdf
+ * https://www.ti.com/lit/ds/symlink/dac7571.pdf
+ * https://www.ti.com/lit/ds/symlink/dac5574.pdf
+ * https://www.ti.com/lit/ds/symlink/dac6574.pdf
+ * https://www.ti.com/lit/ds/symlink/dac7574.pdf
+ * https://www.ti.com/lit/ds/symlink/dac5573.pdf
+ * https://www.ti.com/lit/ds/symlink/dac6573.pdf
+ * https://www.ti.com/lit/ds/symlink/dac7573.pdf
+ * https://www.ti.com/lit/ds/symlink/dac081c081.pdf
+ * https://www.ti.com/lit/ds/symlink/dac121c081.pdf
*/
#include <linux/iio/iio.h>
#include <linux/i2c.h>
#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/of.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
#include <linux/regulator/consumer.h>
enum chip_id {
@@ -50,12 +49,12 @@ struct dac5571_data {
struct mutex lock;
struct regulator *vref;
u16 val[4];
- bool powerdown;
- u8 powerdown_mode;
+ bool powerdown[4];
+ u8 powerdown_mode[4];
struct dac5571_spec const *spec;
int (*dac5571_cmd)(struct dac5571_data *data, int channel, u16 val);
int (*dac5571_pwrdwn)(struct dac5571_data *data, int channel, u8 pwrdwn);
- u8 buf[3] ____cacheline_aligned;
+ u8 buf[3] __aligned(IIO_DMA_MINALIGN);
};
#define DAC5571_POWERDOWN(mode) ((mode) + 1)
@@ -128,7 +127,7 @@ static int dac5571_get_powerdown_mode(struct iio_dev *indio_dev,
{
struct dac5571_data *data = iio_priv(indio_dev);
- return data->powerdown_mode;
+ return data->powerdown_mode[chan->channel];
}
static int dac5571_set_powerdown_mode(struct iio_dev *indio_dev,
@@ -138,17 +137,17 @@ static int dac5571_set_powerdown_mode(struct iio_dev *indio_dev,
struct dac5571_data *data = iio_priv(indio_dev);
int ret = 0;
- if (data->powerdown_mode == mode)
+ if (data->powerdown_mode[chan->channel] == mode)
return 0;
mutex_lock(&data->lock);
- if (data->powerdown) {
+ if (data->powerdown[chan->channel]) {
ret = data->dac5571_pwrdwn(data, chan->channel,
DAC5571_POWERDOWN(mode));
if (ret)
goto out;
}
- data->powerdown_mode = mode;
+ data->powerdown_mode[chan->channel] = mode;
out:
mutex_unlock(&data->lock);
@@ -170,7 +169,7 @@ static ssize_t dac5571_read_powerdown(struct iio_dev *indio_dev,
{
struct dac5571_data *data = iio_priv(indio_dev);
- return sprintf(buf, "%d\n", data->powerdown);
+ return sysfs_emit(buf, "%d\n", data->powerdown[chan->channel]);
}
static ssize_t dac5571_write_powerdown(struct iio_dev *indio_dev,
@@ -182,23 +181,24 @@ static ssize_t dac5571_write_powerdown(struct iio_dev *indio_dev,
bool powerdown;
int ret;
- ret = strtobool(buf, &powerdown);
+ ret = kstrtobool(buf, &powerdown);
if (ret)
return ret;
- if (data->powerdown == powerdown)
+ if (data->powerdown[chan->channel] == powerdown)
return len;
mutex_lock(&data->lock);
if (powerdown)
ret = data->dac5571_pwrdwn(data, chan->channel,
- DAC5571_POWERDOWN(data->powerdown_mode));
+ DAC5571_POWERDOWN(data->powerdown_mode[chan->channel]));
else
- ret = data->dac5571_cmd(data, chan->channel, data->val[0]);
+ ret = data->dac5571_cmd(data, chan->channel,
+ data->val[chan->channel]);
if (ret)
goto out;
- data->powerdown = powerdown;
+ data->powerdown[chan->channel] = powerdown;
out:
mutex_unlock(&data->lock);
@@ -212,11 +212,11 @@ static const struct iio_chan_spec_ext_info dac5571_ext_info[] = {
.name = "powerdown",
.read = dac5571_read_powerdown,
.write = dac5571_write_powerdown,
- .shared = IIO_SHARED_BY_TYPE,
+ .shared = IIO_SEPARATE,
},
- IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, &dac5571_powerdown_mode),
- IIO_ENUM_AVAILABLE("powerdown_mode", &dac5571_powerdown_mode),
- {},
+ IIO_ENUM("powerdown_mode", IIO_SEPARATE, &dac5571_powerdown_mode),
+ IIO_ENUM_AVAILABLE("powerdown_mode", IIO_SHARED_BY_TYPE, &dac5571_powerdown_mode),
+ { }
};
#define dac5571_CHANNEL(chan, name) { \
@@ -279,7 +279,7 @@ static int dac5571_write_raw(struct iio_dev *indio_dev,
if (val >= (1 << data->spec->resolution) || val < 0)
return -EINVAL;
- if (data->powerdown)
+ if (data->powerdown[chan->channel])
return -EBUSY;
mutex_lock(&data->lock);
@@ -307,9 +307,9 @@ static const struct iio_info dac5571_info = {
.write_raw_get_fmt = dac5571_write_raw_get_fmt,
};
-static int dac5571_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int dac5571_probe(struct i2c_client *client)
{
+ const struct i2c_device_id *id = i2c_client_get_device_id(client);
struct device *dev = &client->dev;
const struct dac5571_spec *spec;
struct dac5571_data *data;
@@ -324,14 +324,13 @@ static int dac5571_probe(struct i2c_client *client,
i2c_set_clientdata(client, indio_dev);
data->client = client;
- indio_dev->dev.parent = dev;
- indio_dev->dev.of_node = client->dev.of_node;
indio_dev->info = &dac5571_info;
indio_dev->name = id->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = dac5571_channels;
- spec = &dac5571_spec[id->driver_data];
+ spec = i2c_get_match_data(client);
+
indio_dev->num_channels = spec->num_channels;
data->spec = spec;
@@ -355,6 +354,7 @@ static int dac5571_probe(struct i2c_client *client,
data->dac5571_pwrdwn = dac5571_pwrdwn_quad;
break;
default:
+ ret = -EINVAL;
goto err;
}
@@ -377,58 +377,58 @@ static int dac5571_probe(struct i2c_client *client,
return ret;
}
-static int dac5571_remove(struct i2c_client *i2c)
+static void dac5571_remove(struct i2c_client *i2c)
{
struct iio_dev *indio_dev = i2c_get_clientdata(i2c);
struct dac5571_data *data = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
regulator_disable(data->vref);
-
- return 0;
}
-#ifdef CONFIG_OF
static const struct of_device_id dac5571_of_id[] = {
- {.compatible = "ti,dac5571"},
- {.compatible = "ti,dac6571"},
- {.compatible = "ti,dac7571"},
- {.compatible = "ti,dac5574"},
- {.compatible = "ti,dac6574"},
- {.compatible = "ti,dac7574"},
- {.compatible = "ti,dac5573"},
- {.compatible = "ti,dac6573"},
- {.compatible = "ti,dac7573"},
- {}
+ {.compatible = "ti,dac081c081", .data = &dac5571_spec[single_8bit] },
+ {.compatible = "ti,dac121c081", .data = &dac5571_spec[single_12bit] },
+ {.compatible = "ti,dac5571", .data = &dac5571_spec[single_8bit] },
+ {.compatible = "ti,dac6571", .data = &dac5571_spec[single_10bit] },
+ {.compatible = "ti,dac7571", .data = &dac5571_spec[single_12bit] },
+ {.compatible = "ti,dac5574", .data = &dac5571_spec[quad_8bit] },
+ {.compatible = "ti,dac6574", .data = &dac5571_spec[quad_10bit] },
+ {.compatible = "ti,dac7574", .data = &dac5571_spec[quad_12bit] },
+ {.compatible = "ti,dac5573", .data = &dac5571_spec[quad_8bit] },
+ {.compatible = "ti,dac6573", .data = &dac5571_spec[quad_10bit] },
+ {.compatible = "ti,dac7573", .data = &dac5571_spec[quad_12bit] },
+ { }
};
MODULE_DEVICE_TABLE(of, dac5571_of_id);
-#endif
static const struct i2c_device_id dac5571_id[] = {
- {"dac5571", single_8bit},
- {"dac6571", single_10bit},
- {"dac7571", single_12bit},
- {"dac5574", quad_8bit},
- {"dac6574", quad_10bit},
- {"dac7574", quad_12bit},
- {"dac5573", quad_8bit},
- {"dac6573", quad_10bit},
- {"dac7573", quad_12bit},
- {}
+ {"dac081c081", (kernel_ulong_t)&dac5571_spec[single_8bit] },
+ {"dac121c081", (kernel_ulong_t)&dac5571_spec[single_12bit] },
+ {"dac5571", (kernel_ulong_t)&dac5571_spec[single_8bit] },
+ {"dac6571", (kernel_ulong_t)&dac5571_spec[single_10bit] },
+ {"dac7571", (kernel_ulong_t)&dac5571_spec[single_12bit] },
+ {"dac5574", (kernel_ulong_t)&dac5571_spec[quad_8bit] },
+ {"dac6574", (kernel_ulong_t)&dac5571_spec[quad_10bit] },
+ {"dac7574", (kernel_ulong_t)&dac5571_spec[quad_12bit] },
+ {"dac5573", (kernel_ulong_t)&dac5571_spec[quad_8bit] },
+ {"dac6573", (kernel_ulong_t)&dac5571_spec[quad_10bit] },
+ {"dac7573", (kernel_ulong_t)&dac5571_spec[quad_12bit] },
+ { }
};
MODULE_DEVICE_TABLE(i2c, dac5571_id);
static struct i2c_driver dac5571_driver = {
.driver = {
.name = "ti-dac5571",
- .of_match_table = of_match_ptr(dac5571_of_id),
+ .of_match_table = dac5571_of_id,
},
- .probe = dac5571_probe,
+ .probe = dac5571_probe,
.remove = dac5571_remove,
.id_table = dac5571_id,
};
module_i2c_driver(dac5571_driver);
-MODULE_AUTHOR("Sean Nyekjaer <sean.nyekjaer@prevas.dk>");
+MODULE_AUTHOR("Sean Nyekjaer <sean@geanix.dk>");
MODULE_DESCRIPTION("Texas Instruments 8/10/12-bit 1/4-channel DAC driver");
MODULE_LICENSE("GPL v2");
generated by cgit (git 2.34.1) at 2025-12-26 22:57:26 +0000