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iio: cros_ec: Remove pm function

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Since cros_ec_sensorhub is shutting down the FIFO when the device
suspends, no need to slow down the EC sampling period rate.

It was necesseary to do that before command CMD_FIFO_INT_ENABLE was
introduced, but now all supported chromebooks have it.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
This commit is contained in:
Gwendal Grignou 2020-03-27 15:34:39 -07:00 committed by Enric Balletbo i Serra
parent aa984f1ba4
commit 2861be4ca9
5 changed files with 0 additions and 55 deletions
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1
drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c
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@ -127,7 +127,6 @@ MODULE_DEVICE_TABLE(platform, cros_ec_lid_angle_ids);
static struct platform_driver cros_ec_lid_angle_platform_driver = {
.driver = {
.name = DRV_NAME,
.pm = &cros_ec_sensors_pm_ops,
},
.probe = cros_ec_lid_angle_probe,
.id_table = cros_ec_lid_angle_ids,

1
drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
View File

@ -314,7 +314,6 @@ MODULE_DEVICE_TABLE(platform, cros_ec_sensors_ids);
static struct platform_driver cros_ec_sensors_platform_driver = {
.driver = {
.name = "cros-ec-sensors",
.pm = &cros_ec_sensors_pm_ops,
},
.probe = cros_ec_sensors_probe,
.id_table = cros_ec_sensors_ids,

47
drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
View File

@ -738,52 +738,5 @@ int cros_ec_sensors_core_write(struct cros_ec_sensors_core_state *st,
}
EXPORT_SYMBOL_GPL(cros_ec_sensors_core_write);
static int __maybe_unused cros_ec_sensors_prepare(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct cros_ec_sensors_core_state *st = iio_priv(indio_dev);
if (st->curr_sampl_freq == 0)
return 0;
/*
* If the sensors are sampled at high frequency, we will not be able to
* sleep. Set sampling to a long period if necessary.
*/
if (st->curr_sampl_freq < CROS_EC_MIN_SUSPEND_SAMPLING_FREQUENCY) {
mutex_lock(&st->cmd_lock);
st->param.cmd = MOTIONSENSE_CMD_EC_RATE;
st->param.ec_rate.data = CROS_EC_MIN_SUSPEND_SAMPLING_FREQUENCY;
cros_ec_motion_send_host_cmd(st, 0);
mutex_unlock(&st->cmd_lock);
}
return 0;
}
static void __maybe_unused cros_ec_sensors_complete(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct cros_ec_sensors_core_state *st = iio_priv(indio_dev);
if (st->curr_sampl_freq == 0)
return;
if (st->curr_sampl_freq < CROS_EC_MIN_SUSPEND_SAMPLING_FREQUENCY) {
mutex_lock(&st->cmd_lock);
st->param.cmd = MOTIONSENSE_CMD_EC_RATE;
st->param.ec_rate.data = st->curr_sampl_freq;
cros_ec_motion_send_host_cmd(st, 0);
mutex_unlock(&st->cmd_lock);
}
}
const struct dev_pm_ops cros_ec_sensors_pm_ops = {
#ifdef CONFIG_PM_SLEEP
.prepare = cros_ec_sensors_prepare,
.complete = cros_ec_sensors_complete
#endif
};
EXPORT_SYMBOL_GPL(cros_ec_sensors_pm_ops);
MODULE_DESCRIPTION("ChromeOS EC sensor hub core functions");
MODULE_LICENSE("GPL v2");

1
drivers/iio/light/cros_ec_light_prox.c
View File

@ -255,7 +255,6 @@ MODULE_DEVICE_TABLE(platform, cros_ec_light_prox_ids);
static struct platform_driver cros_ec_light_prox_platform_driver = {
.driver = {
.name = "cros-ec-light-prox",
.pm = &cros_ec_sensors_pm_ops,
},
.probe = cros_ec_light_prox_probe,
.id_table = cros_ec_light_prox_ids,

5
include/linux/iio/common/cros_ec_sensors_core.h
View File

@ -30,9 +30,6 @@ enum {
*/
#define CROS_EC_SAMPLE_SIZE (sizeof(s64) * 2)
/* Minimum sampling period to use when device is suspending */
#define CROS_EC_MIN_SUSPEND_SAMPLING_FREQUENCY 1000 /* 1 second */
typedef irqreturn_t (*cros_ec_sensors_capture_t)(int irq, void *p);
/**
@ -117,8 +114,6 @@ int cros_ec_sensors_core_write(struct cros_ec_sensors_core_state *st,
struct iio_chan_spec const *chan,
int val, int val2, long mask);
extern const struct dev_pm_ops cros_ec_sensors_pm_ops;
/* List of extended channel specification for all sensors */
extern const struct iio_chan_spec_ext_info cros_ec_sensors_ext_info[];