622 строки
15 KiB
C
622 строки
15 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Renesas R-Car GyroADC driver
|
|
*
|
|
* Copyright 2016 Marek Vasut <marek.vasut@gmail.com>
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/io.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_irq.h>
|
|
#include <linux/regulator/consumer.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/err.h>
|
|
#include <linux/pm_runtime.h>
|
|
|
|
#include <linux/iio/iio.h>
|
|
#include <linux/iio/sysfs.h>
|
|
#include <linux/iio/trigger.h>
|
|
|
|
#define DRIVER_NAME "rcar-gyroadc"
|
|
|
|
/* GyroADC registers. */
|
|
#define RCAR_GYROADC_MODE_SELECT 0x00
|
|
#define RCAR_GYROADC_MODE_SELECT_1_MB88101A 0x0
|
|
#define RCAR_GYROADC_MODE_SELECT_2_ADCS7476 0x1
|
|
#define RCAR_GYROADC_MODE_SELECT_3_MAX1162 0x3
|
|
|
|
#define RCAR_GYROADC_START_STOP 0x04
|
|
#define RCAR_GYROADC_START_STOP_START BIT(0)
|
|
|
|
#define RCAR_GYROADC_CLOCK_LENGTH 0x08
|
|
#define RCAR_GYROADC_1_25MS_LENGTH 0x0c
|
|
|
|
#define RCAR_GYROADC_REALTIME_DATA(ch) (0x10 + ((ch) * 4))
|
|
#define RCAR_GYROADC_100MS_ADDED_DATA(ch) (0x30 + ((ch) * 4))
|
|
#define RCAR_GYROADC_10MS_AVG_DATA(ch) (0x50 + ((ch) * 4))
|
|
|
|
#define RCAR_GYROADC_FIFO_STATUS 0x70
|
|
#define RCAR_GYROADC_FIFO_STATUS_EMPTY(ch) BIT(0 + (4 * (ch)))
|
|
#define RCAR_GYROADC_FIFO_STATUS_FULL(ch) BIT(1 + (4 * (ch)))
|
|
#define RCAR_GYROADC_FIFO_STATUS_ERROR(ch) BIT(2 + (4 * (ch)))
|
|
|
|
#define RCAR_GYROADC_INTR 0x74
|
|
#define RCAR_GYROADC_INTR_INT BIT(0)
|
|
|
|
#define RCAR_GYROADC_INTENR 0x78
|
|
#define RCAR_GYROADC_INTENR_INTEN BIT(0)
|
|
|
|
#define RCAR_GYROADC_SAMPLE_RATE 800 /* Hz */
|
|
|
|
#define RCAR_GYROADC_RUNTIME_PM_DELAY_MS 2000
|
|
|
|
enum rcar_gyroadc_model {
|
|
RCAR_GYROADC_MODEL_DEFAULT,
|
|
RCAR_GYROADC_MODEL_R8A7792,
|
|
};
|
|
|
|
struct rcar_gyroadc {
|
|
struct device *dev;
|
|
void __iomem *regs;
|
|
struct clk *clk;
|
|
struct regulator *vref[8];
|
|
unsigned int num_channels;
|
|
enum rcar_gyroadc_model model;
|
|
unsigned int mode;
|
|
unsigned int sample_width;
|
|
};
|
|
|
|
static void rcar_gyroadc_hw_init(struct rcar_gyroadc *priv)
|
|
{
|
|
const unsigned long clk_mhz = clk_get_rate(priv->clk) / 1000000;
|
|
const unsigned long clk_mul =
|
|
(priv->mode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) ? 10 : 5;
|
|
unsigned long clk_len = clk_mhz * clk_mul;
|
|
|
|
/*
|
|
* According to the R-Car Gen2 datasheet Rev. 1.01, Sept 08 2014,
|
|
* page 77-7, clock length must be even number. If it's odd number,
|
|
* add one.
|
|
*/
|
|
if (clk_len & 1)
|
|
clk_len++;
|
|
|
|
/* Stop the GyroADC. */
|
|
writel(0, priv->regs + RCAR_GYROADC_START_STOP);
|
|
|
|
/* Disable IRQ on V2H. */
|
|
if (priv->model == RCAR_GYROADC_MODEL_R8A7792)
|
|
writel(0, priv->regs + RCAR_GYROADC_INTENR);
|
|
|
|
/* Set mode and timing. */
|
|
writel(priv->mode, priv->regs + RCAR_GYROADC_MODE_SELECT);
|
|
writel(clk_len, priv->regs + RCAR_GYROADC_CLOCK_LENGTH);
|
|
writel(clk_mhz * 1250, priv->regs + RCAR_GYROADC_1_25MS_LENGTH);
|
|
}
|
|
|
|
static void rcar_gyroadc_hw_start(struct rcar_gyroadc *priv)
|
|
{
|
|
/* Start sampling. */
|
|
writel(RCAR_GYROADC_START_STOP_START,
|
|
priv->regs + RCAR_GYROADC_START_STOP);
|
|
|
|
/*
|
|
* Wait for the first conversion to complete. This is longer than
|
|
* the 1.25 mS in the datasheet because 1.25 mS is not enough for
|
|
* the hardware to deliver the first sample and the hardware does
|
|
* then return zeroes instead of valid data.
|
|
*/
|
|
mdelay(3);
|
|
}
|
|
|
|
static void rcar_gyroadc_hw_stop(struct rcar_gyroadc *priv)
|
|
{
|
|
/* Stop the GyroADC. */
|
|
writel(0, priv->regs + RCAR_GYROADC_START_STOP);
|
|
}
|
|
|
|
#define RCAR_GYROADC_CHAN(_idx) { \
|
|
.type = IIO_VOLTAGE, \
|
|
.indexed = 1, \
|
|
.channel = (_idx), \
|
|
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
|
|
BIT(IIO_CHAN_INFO_SCALE), \
|
|
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ), \
|
|
}
|
|
|
|
static const struct iio_chan_spec rcar_gyroadc_iio_channels_1[] = {
|
|
RCAR_GYROADC_CHAN(0),
|
|
RCAR_GYROADC_CHAN(1),
|
|
RCAR_GYROADC_CHAN(2),
|
|
RCAR_GYROADC_CHAN(3),
|
|
};
|
|
|
|
static const struct iio_chan_spec rcar_gyroadc_iio_channels_2[] = {
|
|
RCAR_GYROADC_CHAN(0),
|
|
RCAR_GYROADC_CHAN(1),
|
|
RCAR_GYROADC_CHAN(2),
|
|
RCAR_GYROADC_CHAN(3),
|
|
RCAR_GYROADC_CHAN(4),
|
|
RCAR_GYROADC_CHAN(5),
|
|
RCAR_GYROADC_CHAN(6),
|
|
RCAR_GYROADC_CHAN(7),
|
|
};
|
|
|
|
static const struct iio_chan_spec rcar_gyroadc_iio_channels_3[] = {
|
|
RCAR_GYROADC_CHAN(0),
|
|
RCAR_GYROADC_CHAN(1),
|
|
RCAR_GYROADC_CHAN(2),
|
|
RCAR_GYROADC_CHAN(3),
|
|
RCAR_GYROADC_CHAN(4),
|
|
RCAR_GYROADC_CHAN(5),
|
|
RCAR_GYROADC_CHAN(6),
|
|
RCAR_GYROADC_CHAN(7),
|
|
};
|
|
|
|
static int rcar_gyroadc_set_power(struct rcar_gyroadc *priv, bool on)
|
|
{
|
|
struct device *dev = priv->dev;
|
|
|
|
if (on) {
|
|
return pm_runtime_resume_and_get(dev);
|
|
} else {
|
|
pm_runtime_mark_last_busy(dev);
|
|
return pm_runtime_put_autosuspend(dev);
|
|
}
|
|
}
|
|
|
|
static int rcar_gyroadc_read_raw(struct iio_dev *indio_dev,
|
|
struct iio_chan_spec const *chan,
|
|
int *val, int *val2, long mask)
|
|
{
|
|
struct rcar_gyroadc *priv = iio_priv(indio_dev);
|
|
struct regulator *consumer;
|
|
unsigned int datareg = RCAR_GYROADC_REALTIME_DATA(chan->channel);
|
|
unsigned int vref;
|
|
int ret;
|
|
|
|
/*
|
|
* MB88101 is special in that it has only single regulator for
|
|
* all four channels.
|
|
*/
|
|
if (priv->mode == RCAR_GYROADC_MODE_SELECT_1_MB88101A)
|
|
consumer = priv->vref[0];
|
|
else
|
|
consumer = priv->vref[chan->channel];
|
|
|
|
switch (mask) {
|
|
case IIO_CHAN_INFO_RAW:
|
|
if (chan->type != IIO_VOLTAGE)
|
|
return -EINVAL;
|
|
|
|
/* Channel not connected. */
|
|
if (!consumer)
|
|
return -EINVAL;
|
|
|
|
ret = iio_device_claim_direct_mode(indio_dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = rcar_gyroadc_set_power(priv, true);
|
|
if (ret < 0) {
|
|
iio_device_release_direct_mode(indio_dev);
|
|
return ret;
|
|
}
|
|
|
|
*val = readl(priv->regs + datareg);
|
|
*val &= BIT(priv->sample_width) - 1;
|
|
|
|
ret = rcar_gyroadc_set_power(priv, false);
|
|
iio_device_release_direct_mode(indio_dev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return IIO_VAL_INT;
|
|
case IIO_CHAN_INFO_SCALE:
|
|
/* Channel not connected. */
|
|
if (!consumer)
|
|
return -EINVAL;
|
|
|
|
vref = regulator_get_voltage(consumer);
|
|
*val = vref / 1000;
|
|
*val2 = 1 << priv->sample_width;
|
|
|
|
return IIO_VAL_FRACTIONAL;
|
|
case IIO_CHAN_INFO_SAMP_FREQ:
|
|
*val = RCAR_GYROADC_SAMPLE_RATE;
|
|
|
|
return IIO_VAL_INT;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int rcar_gyroadc_reg_access(struct iio_dev *indio_dev,
|
|
unsigned int reg, unsigned int writeval,
|
|
unsigned int *readval)
|
|
{
|
|
struct rcar_gyroadc *priv = iio_priv(indio_dev);
|
|
unsigned int maxreg = RCAR_GYROADC_FIFO_STATUS;
|
|
|
|
if (readval == NULL)
|
|
return -EINVAL;
|
|
|
|
if (reg % 4)
|
|
return -EINVAL;
|
|
|
|
/* Handle the V2H case with extra interrupt block. */
|
|
if (priv->model == RCAR_GYROADC_MODEL_R8A7792)
|
|
maxreg = RCAR_GYROADC_INTENR;
|
|
|
|
if (reg > maxreg)
|
|
return -EINVAL;
|
|
|
|
*readval = readl(priv->regs + reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct iio_info rcar_gyroadc_iio_info = {
|
|
.read_raw = rcar_gyroadc_read_raw,
|
|
.debugfs_reg_access = rcar_gyroadc_reg_access,
|
|
};
|
|
|
|
static const struct of_device_id rcar_gyroadc_match[] = {
|
|
{
|
|
/* R-Car compatible GyroADC */
|
|
.compatible = "renesas,rcar-gyroadc",
|
|
.data = (void *)RCAR_GYROADC_MODEL_DEFAULT,
|
|
}, {
|
|
/* R-Car V2H specialty with interrupt registers. */
|
|
.compatible = "renesas,r8a7792-gyroadc",
|
|
.data = (void *)RCAR_GYROADC_MODEL_R8A7792,
|
|
}, {
|
|
/* sentinel */
|
|
}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(of, rcar_gyroadc_match);
|
|
|
|
static const struct of_device_id rcar_gyroadc_child_match[] = {
|
|
/* Mode 1 ADCs */
|
|
{
|
|
.compatible = "fujitsu,mb88101a",
|
|
.data = (void *)RCAR_GYROADC_MODE_SELECT_1_MB88101A,
|
|
},
|
|
/* Mode 2 ADCs */
|
|
{
|
|
.compatible = "ti,adcs7476",
|
|
.data = (void *)RCAR_GYROADC_MODE_SELECT_2_ADCS7476,
|
|
}, {
|
|
.compatible = "ti,adc121",
|
|
.data = (void *)RCAR_GYROADC_MODE_SELECT_2_ADCS7476,
|
|
}, {
|
|
.compatible = "adi,ad7476",
|
|
.data = (void *)RCAR_GYROADC_MODE_SELECT_2_ADCS7476,
|
|
},
|
|
/* Mode 3 ADCs */
|
|
{
|
|
.compatible = "maxim,max1162",
|
|
.data = (void *)RCAR_GYROADC_MODE_SELECT_3_MAX1162,
|
|
}, {
|
|
.compatible = "maxim,max11100",
|
|
.data = (void *)RCAR_GYROADC_MODE_SELECT_3_MAX1162,
|
|
},
|
|
{ /* sentinel */ }
|
|
};
|
|
|
|
static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
|
|
{
|
|
const struct of_device_id *of_id;
|
|
const struct iio_chan_spec *channels;
|
|
struct rcar_gyroadc *priv = iio_priv(indio_dev);
|
|
struct device *dev = priv->dev;
|
|
struct device_node *np = dev->of_node;
|
|
struct device_node *child;
|
|
struct regulator *vref;
|
|
unsigned int reg;
|
|
unsigned int adcmode = -1, childmode;
|
|
unsigned int sample_width;
|
|
unsigned int num_channels;
|
|
int ret, first = 1;
|
|
|
|
for_each_child_of_node(np, child) {
|
|
of_id = of_match_node(rcar_gyroadc_child_match, child);
|
|
if (!of_id) {
|
|
dev_err(dev, "Ignoring unsupported ADC \"%pOFn\".",
|
|
child);
|
|
continue;
|
|
}
|
|
|
|
childmode = (uintptr_t)of_id->data;
|
|
switch (childmode) {
|
|
case RCAR_GYROADC_MODE_SELECT_1_MB88101A:
|
|
sample_width = 12;
|
|
channels = rcar_gyroadc_iio_channels_1;
|
|
num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_1);
|
|
break;
|
|
case RCAR_GYROADC_MODE_SELECT_2_ADCS7476:
|
|
sample_width = 15;
|
|
channels = rcar_gyroadc_iio_channels_2;
|
|
num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_2);
|
|
break;
|
|
case RCAR_GYROADC_MODE_SELECT_3_MAX1162:
|
|
sample_width = 16;
|
|
channels = rcar_gyroadc_iio_channels_3;
|
|
num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_3);
|
|
break;
|
|
default:
|
|
goto err_e_inval;
|
|
}
|
|
|
|
/*
|
|
* MB88101 is special in that it's only a single chip taking
|
|
* up all the CHS lines. Thus, the DT binding is also special
|
|
* and has no reg property. If we run into such ADC, handle
|
|
* it here.
|
|
*/
|
|
if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) {
|
|
reg = 0;
|
|
} else {
|
|
ret = of_property_read_u32(child, "reg", ®);
|
|
if (ret) {
|
|
dev_err(dev,
|
|
"Failed to get child reg property of ADC \"%pOFn\".\n",
|
|
child);
|
|
goto err_of_node_put;
|
|
}
|
|
|
|
/* Channel number is too high. */
|
|
if (reg >= num_channels) {
|
|
dev_err(dev,
|
|
"Only %i channels supported with %pOFn, but reg = <%i>.\n",
|
|
num_channels, child, reg);
|
|
goto err_e_inval;
|
|
}
|
|
}
|
|
|
|
/* Child node selected different mode than the rest. */
|
|
if (!first && (adcmode != childmode)) {
|
|
dev_err(dev,
|
|
"Channel %i uses different ADC mode than the rest.\n",
|
|
reg);
|
|
goto err_e_inval;
|
|
}
|
|
|
|
/* Channel is valid, grab the regulator. */
|
|
dev->of_node = child;
|
|
vref = devm_regulator_get(dev, "vref");
|
|
dev->of_node = np;
|
|
if (IS_ERR(vref)) {
|
|
dev_dbg(dev, "Channel %i 'vref' supply not connected.\n",
|
|
reg);
|
|
ret = PTR_ERR(vref);
|
|
goto err_of_node_put;
|
|
}
|
|
|
|
priv->vref[reg] = vref;
|
|
|
|
if (!first)
|
|
continue;
|
|
|
|
/* First child node which passed sanity tests. */
|
|
adcmode = childmode;
|
|
first = 0;
|
|
|
|
priv->num_channels = num_channels;
|
|
priv->mode = childmode;
|
|
priv->sample_width = sample_width;
|
|
|
|
indio_dev->channels = channels;
|
|
indio_dev->num_channels = num_channels;
|
|
|
|
/*
|
|
* MB88101 is special and we only have one such device
|
|
* attached to the GyroADC at a time, so if we found it,
|
|
* we can stop parsing here.
|
|
*/
|
|
if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) {
|
|
of_node_put(child);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (first) {
|
|
dev_err(dev, "No valid ADC channels found, aborting.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_e_inval:
|
|
ret = -EINVAL;
|
|
err_of_node_put:
|
|
of_node_put(child);
|
|
return ret;
|
|
}
|
|
|
|
static void rcar_gyroadc_deinit_supplies(struct iio_dev *indio_dev)
|
|
{
|
|
struct rcar_gyroadc *priv = iio_priv(indio_dev);
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < priv->num_channels; i++) {
|
|
if (!priv->vref[i])
|
|
continue;
|
|
|
|
regulator_disable(priv->vref[i]);
|
|
}
|
|
}
|
|
|
|
static int rcar_gyroadc_init_supplies(struct iio_dev *indio_dev)
|
|
{
|
|
struct rcar_gyroadc *priv = iio_priv(indio_dev);
|
|
struct device *dev = priv->dev;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
for (i = 0; i < priv->num_channels; i++) {
|
|
if (!priv->vref[i])
|
|
continue;
|
|
|
|
ret = regulator_enable(priv->vref[i]);
|
|
if (ret) {
|
|
dev_err(dev, "Failed to enable regulator %i (ret=%i)\n",
|
|
i, ret);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err:
|
|
rcar_gyroadc_deinit_supplies(indio_dev);
|
|
return ret;
|
|
}
|
|
|
|
static int rcar_gyroadc_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct rcar_gyroadc *priv;
|
|
struct iio_dev *indio_dev;
|
|
int ret;
|
|
|
|
indio_dev = devm_iio_device_alloc(dev, sizeof(*priv));
|
|
if (!indio_dev)
|
|
return -ENOMEM;
|
|
|
|
priv = iio_priv(indio_dev);
|
|
priv->dev = dev;
|
|
|
|
priv->regs = devm_platform_ioremap_resource(pdev, 0);
|
|
if (IS_ERR(priv->regs))
|
|
return PTR_ERR(priv->regs);
|
|
|
|
priv->clk = devm_clk_get(dev, "fck");
|
|
if (IS_ERR(priv->clk))
|
|
return dev_err_probe(dev, PTR_ERR(priv->clk),
|
|
"Failed to get IF clock\n");
|
|
|
|
ret = rcar_gyroadc_parse_subdevs(indio_dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = rcar_gyroadc_init_supplies(indio_dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
priv->model = (enum rcar_gyroadc_model)
|
|
of_device_get_match_data(&pdev->dev);
|
|
|
|
platform_set_drvdata(pdev, indio_dev);
|
|
|
|
indio_dev->name = DRIVER_NAME;
|
|
indio_dev->info = &rcar_gyroadc_iio_info;
|
|
indio_dev->modes = INDIO_DIRECT_MODE;
|
|
|
|
ret = clk_prepare_enable(priv->clk);
|
|
if (ret) {
|
|
dev_err(dev, "Could not prepare or enable the IF clock.\n");
|
|
goto err_clk_if_enable;
|
|
}
|
|
|
|
pm_runtime_set_autosuspend_delay(dev, RCAR_GYROADC_RUNTIME_PM_DELAY_MS);
|
|
pm_runtime_use_autosuspend(dev);
|
|
pm_runtime_enable(dev);
|
|
|
|
ret = pm_runtime_resume_and_get(dev);
|
|
if (ret)
|
|
goto err_power_up;
|
|
|
|
rcar_gyroadc_hw_init(priv);
|
|
rcar_gyroadc_hw_start(priv);
|
|
|
|
ret = iio_device_register(indio_dev);
|
|
if (ret) {
|
|
dev_err(dev, "Couldn't register IIO device.\n");
|
|
goto err_iio_device_register;
|
|
}
|
|
|
|
pm_runtime_put_sync(dev);
|
|
|
|
return 0;
|
|
|
|
err_iio_device_register:
|
|
rcar_gyroadc_hw_stop(priv);
|
|
pm_runtime_put_sync(dev);
|
|
err_power_up:
|
|
pm_runtime_disable(dev);
|
|
pm_runtime_set_suspended(dev);
|
|
clk_disable_unprepare(priv->clk);
|
|
err_clk_if_enable:
|
|
rcar_gyroadc_deinit_supplies(indio_dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rcar_gyroadc_remove(struct platform_device *pdev)
|
|
{
|
|
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
|
|
struct rcar_gyroadc *priv = iio_priv(indio_dev);
|
|
struct device *dev = priv->dev;
|
|
|
|
iio_device_unregister(indio_dev);
|
|
pm_runtime_get_sync(dev);
|
|
rcar_gyroadc_hw_stop(priv);
|
|
pm_runtime_put_sync(dev);
|
|
pm_runtime_disable(dev);
|
|
pm_runtime_set_suspended(dev);
|
|
clk_disable_unprepare(priv->clk);
|
|
rcar_gyroadc_deinit_supplies(indio_dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_PM)
|
|
static int rcar_gyroadc_suspend(struct device *dev)
|
|
{
|
|
struct iio_dev *indio_dev = dev_get_drvdata(dev);
|
|
struct rcar_gyroadc *priv = iio_priv(indio_dev);
|
|
|
|
rcar_gyroadc_hw_stop(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rcar_gyroadc_resume(struct device *dev)
|
|
{
|
|
struct iio_dev *indio_dev = dev_get_drvdata(dev);
|
|
struct rcar_gyroadc *priv = iio_priv(indio_dev);
|
|
|
|
rcar_gyroadc_hw_start(priv);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static const struct dev_pm_ops rcar_gyroadc_pm_ops = {
|
|
SET_RUNTIME_PM_OPS(rcar_gyroadc_suspend, rcar_gyroadc_resume, NULL)
|
|
};
|
|
|
|
static struct platform_driver rcar_gyroadc_driver = {
|
|
.probe = rcar_gyroadc_probe,
|
|
.remove = rcar_gyroadc_remove,
|
|
.driver = {
|
|
.name = DRIVER_NAME,
|
|
.of_match_table = rcar_gyroadc_match,
|
|
.pm = &rcar_gyroadc_pm_ops,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(rcar_gyroadc_driver);
|
|
|
|
MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
|
|
MODULE_DESCRIPTION("Renesas R-Car GyroADC driver");
|
|
MODULE_LICENSE("GPL");
|