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path: root/drivers/iio/light/cros_ec_light_prox.c
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2019-09-19Merge tag 'tag-chrome-platform-for-v5.4' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform updates from Benson Leung: "CrOS EC / MFD Migration: - Move cros_ec core driver from mfd into chrome platform. Wilco EC: - Add batt_ppid_info command to Wilco telemetry driver. CrOS EC: - cros_ec_rpmsg : Add support to inform EC of suspend/resume status - cros_ec_rpmsg : Fix race condition on probe failed - cros_ec_chardev : Add a poll handler to receive MKBP events Misc: - bugfixes in cros_usbpd_logger and cros_ec_ishtp" * tag 'tag-chrome-platform-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: platform/chrome: cros_usbpd_logger: null check create_singlethread_workqueue platform/chrome: cros_ec_chardev: Add a poll handler to receive MKBP events platform/chrome: cros_ec_rpmsg: Fix race with host command when probe failed platform/chrome: chromeos_tbmc: Report wake events mfd: cros_ec: Use mfd_add_hotplug_devices() helper mfd: cros_ec: Add convenience struct to define autodetectable CrOS EC subdevices mfd: cros_ec: Add convenience struct to define dedicated CrOS EC MCUs mfd: cros_ec: Use kzalloc and cros_ec_cmd_xfer_status helper mfd / platform: cros_ec: Reorganize platform and mfd includes mfd / platform: cros_ec: Rename config to a better name mfd: cros_ec: Switch to use the new cros-ec-chardev driver mfd / platform: cros_ec: Miscellaneous character device to talk with the EC mfd / platform: cros_ec: Move cros-ec core driver out from MFD mfd / platform: cros_ec: Handle chained ECs as platform devices platform/chrome: cros_ec_rpmsg: Add host command AP sleep state support platform/chrome: chromeos_laptop: drop checks of NULL-safe functions platform/chrome: wilco_ec: Add batt_ppid_info command to telemetry driver
2019-09-02mfd / platform: cros_ec: Reorganize platform and mfd includesEnric Balletbo i Serra1-1/+2
There is a bit of mess between cros-ec mfd includes and platform includes. For example, we have a linux/mfd/cros_ec.h include that exports the interface implemented in platform/chrome/cros_ec_proto.c. Or we have a linux/mfd/cros_ec_commands.h file that is non related to the multifunction device (in the sense that is not exporting any function of the mfd device). This causes crossed includes between mfd and platform/chrome subsystems and makes the code difficult to read, apart from creating 'curious' situations where a platform/chrome driver includes a linux/mfd/cros_ec.h file just to get the exported functions that are implemented in another platform/chrome driver. In order to have a better separation on what the cros-ec multifunction driver does and what the cros-ec core provides move and rework the affected includes doing: - Move cros_ec_commands.h to include/linux/platform_data/cros_ec_commands.h - Get rid of the parts that are implemented in the platform/chrome/cros_ec_proto.c driver from include/linux/mfd/cros_ec.h to a new file include/linux/platform_data/cros_ec_proto.h - Update all the drivers with the new includes, so - Drivers that only need to know about the protocol include - linux/platform_data/cros_ec_proto.h - linux/platform_data/cros_ec_commands.h - Drivers that need to know about the cros-ec mfd device also include - linux/mfd/cros_ec.h Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Series changes: 3 - Fix dereferencing pointer to incomplete type 'struct cros_ec_dev' (lkp) Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-07-27iio: common: cros_ec_sensors: Expose cros_ec_sensors frequency range via iio ↵Fabien Lahoudere1-0/+3
sysfs Embedded controller return minimum and maximum frequencies, unfortunately we have no way to know the step for all available frequencies. Even if not complete, we can return a list of known values using the standard read_avail callback (IIO_CHAN_INFO_SAMP_FREQ) to provide them to userland. Now cros_ec_* sensors provides frequencies values in sysfs like this: "0 min max". 0 is always true to disable the sensor. Default frequencies are provided for earlier protocol. Signed-off-by: Nick Vaccaro <nvaccaro@chromium.org> Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com> [rebased on top of iio/testing and solved conflicts] Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27iio: cros_ec: Remove replacing error code with -EIOGwendal Grignou1-20/+16
Due to an API misread, error code can be different for -EIO when reading a sysfs entry. Return the error reported by the cros_ec stack. Check the proper error message (protocol error, not supported) is reported when there is an error returned by the EC stack. Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27iio: cros_ec: Add calibscale for 3d MEMSGwendal Grignou1-6/+6
Add calibration scale support to accel, gyro and magnetometer. Check on eve with current firmware, check reading calibscale returns 1.0, check with newer firmware values are applied. Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04iio: cros_ec: Switch to SPDX identifier.Enric Balletbo i Serra1-9/+1
Adopt the SPDX license identifier headers to ease license compliance management. Also fix MODULE_LICENSE for cros_ec_accel_legacy to match the SPDX and boiler plate license. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04iio: cros_ec: Drop unnecessary include filesGuenter Roeck1-2/+0
The cros_ec sensors drivers do not call any sysfs functions or use any sysfs defines, and thus do not need to include linux/sysfs.h. Also, some cros_ec drivers include linux/delay.h and is not used. Signed-off-by: Guenter Roeck <groeck@chromium.org> [remove linux/delay.h] Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-17iio: cros_ec: Move cros_ec_sensors_core.h in /includeGwendal Grignou1-2/+1
Similar to other common iio frameworks, move cros_ec_sensors_core.h from drivers/iio/common/cros_ec_sensors/ to include/linux/iio/common. Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-03iio: cros_ec: Relax sampling frequency before suspendingGwendal Grignou1-0/+1
If an application set a tight sampling frequency, given the interrupt use is a wakeup source, suspend will not happen: the kernel will receive a wake up interrupt and will cancel the suspend process. Given cros_ec sensors type is non wake up, this patch adds prepare and complete callbacks to set 1s sampling period just before suspend. This ensures the sensor hub will not be a source of interrupt during the suspend process. Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02iio: cros_ec: Remove unused variablesPaolo Cretaro1-2/+0
Fix gcc warnings about variable 'ec_device' being set but not used in these files: common/cros_ec_sensors/cros_ec_sensors.c:194:25 light/cros_ec_light_prox.c:184:25 Signed-off-by: Paolo Cretaro <paolocretaro@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-08-22iio:light: drop assign iio_info.driver_module and iio_trigger_ops.ownerJonathan Cameron1-1/+0
The equivalent of both of these are now done via macro magic when the relevant register calls are made. The actual structure elements will shortly go away. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2017-02-04iio: cros_ec_light_prox: add ChromeOS EC Light and Proximity SensorsGwendal Grignou1-0/+289
Handle Light and Proximity sensors presented by the ChromeOS EC Sensor hub. Creates an IIO device for each functions. Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Guenter Roeck <groeck@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>