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From: Gwendal Grignou <gwendal@chromium.org>
To: bleung@chromium.org, enric.balletbo@collabora.com,
	Jonathan.Cameron@huawei.com
Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
	Gwendal Grignou <gwendal@chromium.org>,
	Lee Jones <lee.jones@linaro.org>
Subject: [PATCH v7 08/12] iio: cros_ec: Remove pm function
Date: Fri, 27 Mar 2020 15:34:39 -0700	[thread overview]
Message-ID: <20200327223443.6006-9-gwendal@chromium.org> (raw)
In-Reply-To: <20200327223443.6006-1-gwendal@chromium.org>

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.

Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
---
No changes in v6 and v7.
Changes in v5:
  Added ack.
No changes in v4, v3.
New in v2.

 .../cros_ec_sensors/cros_ec_lid_angle.c       |  1 -
 .../common/cros_ec_sensors/cros_ec_sensors.c  |  1 -
 .../cros_ec_sensors/cros_ec_sensors_core.c    | 47 -------------------
 drivers/iio/light/cros_ec_light_prox.c        |  1 -
 .../linux/iio/common/cros_ec_sensors_core.h   |  5 --
 5 files changed, 55 deletions(-)

diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c b/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c
index e30a59fcf0f95..af801e203623e 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c
@@ -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,
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
index 711134d67ddee..fad21a90bc7e8 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
@@ -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,
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
index 01513cb933653..a1ecbd55ea767 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
@@ -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");
diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c
index 03c951ff4a3c3..e10b35de4c2fa 100644
--- a/drivers/iio/light/cros_ec_light_prox.c
+++ b/drivers/iio/light/cros_ec_light_prox.c
@@ -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,
diff --git a/include/linux/iio/common/cros_ec_sensors_core.h b/include/linux/iio/common/cros_ec_sensors_core.h
index b8f573ca9dcc9..96ea4551945e2 100644
--- a/include/linux/iio/common/cros_ec_sensors_core.h
+++ b/include/linux/iio/common/cros_ec_sensors_core.h
@@ -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[];
 
-- 
2.26.0.rc2.310.g2932bb562d-goog


  parent reply	other threads:[~2020-03-27 22:35 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-27 22:34 [PATCH v7 00/12] Cros EC sensor hub FIFO support Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 01/12] platform: chrome: sensorhub: Add the number of sensors in sensorhub Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 02/12] platform: chrome: sensorhub: Add FIFO support Gwendal Grignou
2020-03-30  7:20   ` kbuild test robot
2020-03-30 16:31     ` Nick Desaulniers
2020-03-30 16:35       ` Nick Desaulniers
2020-03-27 22:34 ` [PATCH v7 03/12] platform: chrome: sensorhub: Add code to spread timestmap Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 04/12] platform: chrome: sensorhub: Add median filter Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 05/12] iio: cros_ec: Move function description to .c file Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 06/12] iio: expose iio_device_set_clock Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 07/12] iio: cros_ec: Register to cros_ec_sensorhub when EC supports FIFO Gwendal Grignou
2020-03-27 22:34 ` Gwendal Grignou [this message]
2020-03-27 22:34 ` [PATCH v7 09/12] iio: cros_ec: Expose hwfifo_timeout Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 10/12] iio: cros_ec: Report hwfifo_watermark_max Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 11/12] iio: cros_ec: Use Hertz as unit for sampling frequency Gwendal Grignou
2020-03-27 22:34 ` [PATCH v7 12/12] iio: cros_ec: flush as hwfifo attribute Gwendal Grignou
2020-03-28  9:14   ` Enric Balletbo i Serra
2020-03-28 17:24     ` Jonathan Cameron
2020-03-28 17:22   ` Jonathan Cameron
2020-03-29  0:33     ` Gwendal Grignou
2020-03-29  9:31       ` Jonathan Cameron
2020-03-29 11:22   ` Andy Shevchenko
2020-03-30 12:56 ` [PATCH v7 00/12] Cros EC sensor hub FIFO support Enric Balletbo i Serra

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