mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-22 00:40:03 +00:00
d3be83244c
This patch applies the semantic patch: @@ expression I, P, SP; @@ I = devm_iio_device_alloc(P, SP); ... - I->dev.parent = P; It updates 302 files and does 307 deletions. This semantic patch also removes some comments like '/* Establish that the iio_dev is a child of the i2c device */' But this is is only done in case where the block is left empty. The patch does not seem to cover all cases. It looks like in some cases a different variable is used in some cases to assign the parent, but it points to the same reference. In other cases, the block covered by ... may be just too big to be covered by the semantic patch. However, this looks pretty good as well, as it does cover a big bulk of the drivers that should remove the parent assignment. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
265 lines
7.8 KiB
C
265 lines
7.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (C) 2016 - Marcin Malagowski <mrc@bourne.st>
|
|
*/
|
|
#include <linux/delay.h>
|
|
#include <linux/device.h>
|
|
#include <linux/err.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/io.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/iio/iio.h>
|
|
|
|
#define ABP060MG_ERROR_MASK 0xC000
|
|
#define ABP060MG_RESP_TIME_MS 40
|
|
#define ABP060MG_MIN_COUNTS 1638 /* = 0x0666 (10% of u14) */
|
|
#define ABP060MG_MAX_COUNTS 14745 /* = 0x3999 (90% of u14) */
|
|
#define ABP060MG_NUM_COUNTS (ABP060MG_MAX_COUNTS - ABP060MG_MIN_COUNTS)
|
|
|
|
enum abp_variant {
|
|
/* gage [kPa] */
|
|
ABP006KG, ABP010KG, ABP016KG, ABP025KG, ABP040KG, ABP060KG, ABP100KG,
|
|
ABP160KG, ABP250KG, ABP400KG, ABP600KG, ABP001GG,
|
|
/* differential [kPa] */
|
|
ABP006KD, ABP010KD, ABP016KD, ABP025KD, ABP040KD, ABP060KD, ABP100KD,
|
|
ABP160KD, ABP250KD, ABP400KD,
|
|
/* gage [psi] */
|
|
ABP001PG, ABP005PG, ABP015PG, ABP030PG, ABP060PG, ABP100PG, ABP150PG,
|
|
/* differential [psi] */
|
|
ABP001PD, ABP005PD, ABP015PD, ABP030PD, ABP060PD,
|
|
};
|
|
|
|
struct abp_config {
|
|
int min;
|
|
int max;
|
|
};
|
|
|
|
static struct abp_config abp_config[] = {
|
|
/* mbar & kPa variants */
|
|
[ABP006KG] = { .min = 0, .max = 6000 },
|
|
[ABP010KG] = { .min = 0, .max = 10000 },
|
|
[ABP016KG] = { .min = 0, .max = 16000 },
|
|
[ABP025KG] = { .min = 0, .max = 25000 },
|
|
[ABP040KG] = { .min = 0, .max = 40000 },
|
|
[ABP060KG] = { .min = 0, .max = 60000 },
|
|
[ABP100KG] = { .min = 0, .max = 100000 },
|
|
[ABP160KG] = { .min = 0, .max = 160000 },
|
|
[ABP250KG] = { .min = 0, .max = 250000 },
|
|
[ABP400KG] = { .min = 0, .max = 400000 },
|
|
[ABP600KG] = { .min = 0, .max = 600000 },
|
|
[ABP001GG] = { .min = 0, .max = 1000000 },
|
|
[ABP006KD] = { .min = -6000, .max = 6000 },
|
|
[ABP010KD] = { .min = -10000, .max = 10000 },
|
|
[ABP016KD] = { .min = -16000, .max = 16000 },
|
|
[ABP025KD] = { .min = -25000, .max = 25000 },
|
|
[ABP040KD] = { .min = -40000, .max = 40000 },
|
|
[ABP060KD] = { .min = -60000, .max = 60000 },
|
|
[ABP100KD] = { .min = -100000, .max = 100000 },
|
|
[ABP160KD] = { .min = -160000, .max = 160000 },
|
|
[ABP250KD] = { .min = -250000, .max = 250000 },
|
|
[ABP400KD] = { .min = -400000, .max = 400000 },
|
|
/* psi variants (1 psi ~ 6895 Pa) */
|
|
[ABP001PG] = { .min = 0, .max = 6985 },
|
|
[ABP005PG] = { .min = 0, .max = 34474 },
|
|
[ABP015PG] = { .min = 0, .max = 103421 },
|
|
[ABP030PG] = { .min = 0, .max = 206843 },
|
|
[ABP060PG] = { .min = 0, .max = 413686 },
|
|
[ABP100PG] = { .min = 0, .max = 689476 },
|
|
[ABP150PG] = { .min = 0, .max = 1034214 },
|
|
[ABP001PD] = { .min = -6895, .max = 6895 },
|
|
[ABP005PD] = { .min = -34474, .max = 34474 },
|
|
[ABP015PD] = { .min = -103421, .max = 103421 },
|
|
[ABP030PD] = { .min = -206843, .max = 206843 },
|
|
[ABP060PD] = { .min = -413686, .max = 413686 },
|
|
};
|
|
|
|
struct abp_state {
|
|
struct i2c_client *client;
|
|
struct mutex lock;
|
|
|
|
/*
|
|
* bus-dependent MEASURE_REQUEST length.
|
|
* If no SMBUS_QUICK support, need to send dummy byte
|
|
*/
|
|
int mreq_len;
|
|
|
|
/* model-dependent values (calculated on probe) */
|
|
int scale;
|
|
int offset;
|
|
};
|
|
|
|
static const struct iio_chan_spec abp060mg_channels[] = {
|
|
{
|
|
.type = IIO_PRESSURE,
|
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
|
|
BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE),
|
|
},
|
|
};
|
|
|
|
static int abp060mg_get_measurement(struct abp_state *state, int *val)
|
|
{
|
|
struct i2c_client *client = state->client;
|
|
__be16 buf[2];
|
|
u16 pressure;
|
|
int ret;
|
|
|
|
buf[0] = 0;
|
|
ret = i2c_master_send(client, (u8 *)&buf, state->mreq_len);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
msleep_interruptible(ABP060MG_RESP_TIME_MS);
|
|
|
|
ret = i2c_master_recv(client, (u8 *)&buf, sizeof(buf));
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
pressure = be16_to_cpu(buf[0]);
|
|
if (pressure & ABP060MG_ERROR_MASK)
|
|
return -EIO;
|
|
|
|
if (pressure < ABP060MG_MIN_COUNTS || pressure > ABP060MG_MAX_COUNTS)
|
|
return -EIO;
|
|
|
|
*val = pressure;
|
|
|
|
return IIO_VAL_INT;
|
|
}
|
|
|
|
static int abp060mg_read_raw(struct iio_dev *indio_dev,
|
|
struct iio_chan_spec const *chan, int *val,
|
|
int *val2, long mask)
|
|
{
|
|
struct abp_state *state = iio_priv(indio_dev);
|
|
int ret;
|
|
|
|
mutex_lock(&state->lock);
|
|
|
|
switch (mask) {
|
|
case IIO_CHAN_INFO_RAW:
|
|
ret = abp060mg_get_measurement(state, val);
|
|
break;
|
|
case IIO_CHAN_INFO_OFFSET:
|
|
*val = state->offset;
|
|
ret = IIO_VAL_INT;
|
|
break;
|
|
case IIO_CHAN_INFO_SCALE:
|
|
*val = state->scale;
|
|
*val2 = ABP060MG_NUM_COUNTS * 1000; /* to kPa */
|
|
ret = IIO_VAL_FRACTIONAL;
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&state->lock);
|
|
return ret;
|
|
}
|
|
|
|
static const struct iio_info abp060mg_info = {
|
|
.read_raw = abp060mg_read_raw,
|
|
};
|
|
|
|
static void abp060mg_init_device(struct iio_dev *indio_dev, unsigned long id)
|
|
{
|
|
struct abp_state *state = iio_priv(indio_dev);
|
|
struct abp_config *cfg = &abp_config[id];
|
|
|
|
state->scale = cfg->max - cfg->min;
|
|
state->offset = -ABP060MG_MIN_COUNTS;
|
|
|
|
if (cfg->min < 0) /* differential */
|
|
state->offset -= ABP060MG_NUM_COUNTS >> 1;
|
|
}
|
|
|
|
static int abp060mg_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct iio_dev *indio_dev;
|
|
struct abp_state *state;
|
|
unsigned long cfg_id = id->driver_data;
|
|
|
|
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*state));
|
|
if (!indio_dev)
|
|
return -ENOMEM;
|
|
|
|
state = iio_priv(indio_dev);
|
|
i2c_set_clientdata(client, state);
|
|
state->client = client;
|
|
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_QUICK))
|
|
state->mreq_len = 1;
|
|
|
|
abp060mg_init_device(indio_dev, cfg_id);
|
|
|
|
indio_dev->name = dev_name(&client->dev);
|
|
indio_dev->modes = INDIO_DIRECT_MODE;
|
|
indio_dev->info = &abp060mg_info;
|
|
|
|
indio_dev->channels = abp060mg_channels;
|
|
indio_dev->num_channels = ARRAY_SIZE(abp060mg_channels);
|
|
|
|
mutex_init(&state->lock);
|
|
|
|
return devm_iio_device_register(&client->dev, indio_dev);
|
|
}
|
|
|
|
static const struct i2c_device_id abp060mg_id_table[] = {
|
|
/* mbar & kPa variants (abp060m [60 mbar] == abp006k [6 kPa]) */
|
|
/* gage: */
|
|
{ "abp060mg", ABP006KG }, { "abp006kg", ABP006KG },
|
|
{ "abp100mg", ABP010KG }, { "abp010kg", ABP010KG },
|
|
{ "abp160mg", ABP016KG }, { "abp016kg", ABP016KG },
|
|
{ "abp250mg", ABP025KG }, { "abp025kg", ABP025KG },
|
|
{ "abp400mg", ABP040KG }, { "abp040kg", ABP040KG },
|
|
{ "abp600mg", ABP060KG }, { "abp060kg", ABP060KG },
|
|
{ "abp001bg", ABP100KG }, { "abp100kg", ABP100KG },
|
|
{ "abp1_6bg", ABP160KG }, { "abp160kg", ABP160KG },
|
|
{ "abp2_5bg", ABP250KG }, { "abp250kg", ABP250KG },
|
|
{ "abp004bg", ABP400KG }, { "abp400kg", ABP400KG },
|
|
{ "abp006bg", ABP600KG }, { "abp600kg", ABP600KG },
|
|
{ "abp010bg", ABP001GG }, { "abp001gg", ABP001GG },
|
|
/* differential: */
|
|
{ "abp060md", ABP006KD }, { "abp006kd", ABP006KD },
|
|
{ "abp100md", ABP010KD }, { "abp010kd", ABP010KD },
|
|
{ "abp160md", ABP016KD }, { "abp016kd", ABP016KD },
|
|
{ "abp250md", ABP025KD }, { "abp025kd", ABP025KD },
|
|
{ "abp400md", ABP040KD }, { "abp040kd", ABP040KD },
|
|
{ "abp600md", ABP060KD }, { "abp060kd", ABP060KD },
|
|
{ "abp001bd", ABP100KD }, { "abp100kd", ABP100KD },
|
|
{ "abp1_6bd", ABP160KD }, { "abp160kd", ABP160KD },
|
|
{ "abp2_5bd", ABP250KD }, { "abp250kd", ABP250KD },
|
|
{ "abp004bd", ABP400KD }, { "abp400kd", ABP400KD },
|
|
/* psi variants */
|
|
/* gage: */
|
|
{ "abp001pg", ABP001PG },
|
|
{ "abp005pg", ABP005PG },
|
|
{ "abp015pg", ABP015PG },
|
|
{ "abp030pg", ABP030PG },
|
|
{ "abp060pg", ABP060PG },
|
|
{ "abp100pg", ABP100PG },
|
|
{ "abp150pg", ABP150PG },
|
|
/* differential: */
|
|
{ "abp001pd", ABP001PD },
|
|
{ "abp005pd", ABP005PD },
|
|
{ "abp015pd", ABP015PD },
|
|
{ "abp030pd", ABP030PD },
|
|
{ "abp060pd", ABP060PD },
|
|
{ /* empty */ },
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, abp060mg_id_table);
|
|
|
|
static struct i2c_driver abp060mg_driver = {
|
|
.driver = {
|
|
.name = "abp060mg",
|
|
},
|
|
.probe = abp060mg_probe,
|
|
.id_table = abp060mg_id_table,
|
|
};
|
|
module_i2c_driver(abp060mg_driver);
|
|
|
|
MODULE_AUTHOR("Marcin Malagowski <mrc@bourne.st>");
|
|
MODULE_DESCRIPTION("Honeywell ABP pressure sensor driver");
|
|
MODULE_LICENSE("GPL");
|