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iio: cros_ec_sensors_core: Add common functions for the ChromeOS EC Sensor Hub.

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Add the core functions to be able to support the sensors attached behind
the ChromeOS Embedded Controller and used by other IIO cros-ec sensor
drivers.

The cros_ec_sensor_core driver matches with current driver in ChromeOS
4.4 tree, so it includes all the fixes at the moment. The support for
this driver was made by Gwendal Grignou. The original patch and all the
fixes has been squashed and rebased on top of mainline.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
[eballetbo: split, squash and rebase on top of mainline the patches
found in ChromeOS tree]
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Enric Balletbo i Serra
2016-08-01 11:54:35 +02:00
committed by Jonathan Cameron
parent 1001354ca3
commit 974e6f02e2
9 changed files with 767 additions and 5 deletions
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9
include/linux/mfd/cros_ec.h
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@@ -148,6 +148,15 @@ struct cros_ec_device {
int event_size;
};
/**
* struct cros_ec_sensor_platform - ChromeOS EC sensor platform information
*
* @sensor_num: Id of the sensor, as reported by the EC.
*/
struct cros_ec_sensor_platform {
u8 sensor_num;
};
/* struct cros_ec_platform - ChromeOS EC platform information
*
* @ec_name: name of EC device (e.g. 'cros-ec', 'cros-pd', ...)