kernel/linux.git/drivers/mfd/cros_ec_dev.c, branch v5.2.16

mfd: cros_ec: Register cros_ec_lid_angle driver when presented

2019-07-31T05:24:44+00:00

[ Upstream commit 1bb407f17c5316888c3c446e26cb2bb78943f236 ] Register driver when EC indicates has precise lid angle calculation code running. Fix incorrect extra resource allocation in cros_ec_sensors_register(). Signed-off-by: Gwendal Grignou Signed-off-by: Lee Jones Signed-off-by: Sasha Levin

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21T09:28:45+00:00

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Jilayne Lovejoy Reviewed-by: Steve Winslow Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman

mfd: cros_ec: Instantiate properly CrOS Touchpad MCU device

2019-05-14T07:13:28+00:00

Support Touchpad MCU as a special of CrOS EC devices. The current Touchpad MCU is used on Eve Chromebook and used the same protocol as other CrOS EC devices. When a MCU has touchpad support (aka EC_FEATURE_TOUCHPAD), it is instantiated as a special CrOS EC device with device name 'cros_tp'. So regardless of the probing order between the actual cros_ec and cros_tp, the userspace and other kernel drivers should not confuse them. Signed-off-by: Wei-Ning Huang Signed-off-by: Enric Balletbo i Serra Signed-off-by: Lee Jones

mfd: cros_ec: Instantiate properly CrOS FP MCU device

2019-05-14T07:13:28+00:00

Support Fingerprint MCU as a special of CrOS EC devices. The current FP MCU uses the same EC SPI protocol v3 as other CrOS EC devices on a SPI bus. When a MCU has fingerprint support (aka EC_FEATURE_FINGERPRINT), it is instantiated as a special CrOS EC device with device name 'cros_fp'. So regardless of the probing order between the actual cros_ec and cros_fp, the userspace and other kernel drivers should not confuse them. Signed-off-by: Vincent Palatin Signed-off-by: Enric Balletbo i Serra Signed-off-by: Lee Jones

mfd: cros_ec: Instantiate the CrOS USB PD logger driver

2019-05-14T07:13:26+00:00

Add the cros-usbpd-logger driver for logging event data for the USB PD charger available in the Embedded Controller on ChromeOS systems. The logging feature is logically separate functionality from charge manager, hence is instantiated as a different driver. Signed-off-by: Enric Balletbo i Serra Reviewed-by: Guenetr Roeck Signed-off-by: Lee Jones

mfd: cros_ec: Instantiate properly CrOS ISH MCU device

2019-05-14T07:13:26+00:00

Integrated Sensor Hub (ISH) is also a MCU running EC having feature bit EC_FEATURE_ISH. Instantiate it as a special CrOS EC device with device name 'cros_ish'. Signed-off-by: Rushikesh S Kadam Reviewed-by: Andy Shevchenko Acked-by: Enric Balletbo i Serra Reviewed-by: Gwendal Grignou Signed-off-by: Lee Jones

mfd: cros_ec_dev: Return number of bytes read with CROS_EC_DEV_IOCRDMEM

2019-02-07T10:44:24+00:00

While ioctls normally return a negative error or 0 on success, this is not the case for CROS_EC_DEV_IOCXCMD in the cros_ec driver, which returns the number of bytes read instead. However, CROS_EC_DEV_IOCRDMEM in the same driver does not return the number of byte read on success. This is both inconsistent and problematic, since the amount of returned data can be dynamic. Have it return the number of data bytes for consistency. Signed-off-by: Guenter Roeck Signed-off-by: Enric Balletbo i Serra Reviewed-by: Benson Leung Signed-off-by: Lee Jones

mfd / platform: cros_ec_vbc: Instantiate only if the EC has a VBC NVRAM

2019-02-01T08:09:27+00:00

The cros-ec-vbc driver is DT-only and there is a DT property that indicates if the EC has the VCB NVRAM, in such case instantiate the driver but don't instantiate on the other cases. To do this move the check code to its parent instead of play with the attribute group visibility. This changes a bit the actual behaviour. Before the patch if an EC doesn't have a VBC NVRAM an empty vbc folder is created in /sys/class/chromeos/, after the patch the empty folder is not created, so, the folder is only created if the vbc is set. Signed-off-by: Enric Balletbo i Serra Reviewed-by: Guenter Roeck Signed-off-by: Lee Jones

mfd / platform: cros_ec: Move device sysfs attributes to its own driver

2019-02-01T08:09:27+00:00

The entire way how cros debugfs attibutes are created is broken. cros_ec_sysfs should be its own driver and its attributes should be associated with the sysfs driver not the mfd driver. The patch also adds the sysfs documentation. Signed-off-by: Enric Balletbo i Serra Reviewed-by: Guenter Roeck Signed-off-by: Lee Jones

mfd / platform: cros_ec: Move debugfs attributes to its own driver

2019-02-01T08:09:27+00:00

The entire way how cros debugfs attibutes are created is broken. cros_ec_debugfs should be its own driver and its attributes should be associated with a debugfs driver not the mfd driver. Signed-off-by: Enric Balletbo i Serra Reviewed-by: Guenter Roeck Signed-off-by: Lee Jones