BMC/Intel-BMC/linux.git/include/linux/mfd/cros_ec.h, branch dev-4.10

platform/chrome: Introduce a new function to check EC features.

2016-10-25T17:20:29+00:00

Use the EC_CMD_GET_FEATURES message to check the supported features for each MCU. Signed-off-by: Vincent Palatin [tomeu: adapted to changes in mainline] Signed-off-by: Tomeu Vizoso [enric: remove references to USB PD feature and do it more generic] Signed-off-by: Enric Balletbo i Serra Reviewed-by: Guenter Roeck For the MFD changes: Acked-by: Lee Jones Signed-off-by: Jonathan Cameron

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

2016-10-25T17:20:05+00:00

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 Signed-off-by: Guenter Roeck [eballetbo: split, squash and rebase on top of mainline the patches found in ChromeOS tree] Signed-off-by: Enric Balletbo i Serra Signed-off-by: Jonathan Cameron

mfd: cros_ec: Add MKBP event support

2016-08-31T09:50:59+00:00

Newer revisions of the ChromeOS EC add more events besides the keyboard ones. So handle interrupts in the MFD driver and let consumers register for notifications for the events they might care. To keep backward compatibility, if the EC doesn't support MKBP event, we fall back to the old MKBP key matrix host command. Cc: Randall Spangler Cc: Vincent Palatin Cc: Benson Leung Signed-off-by: Vic Yang Signed-off-by: Tomeu Vizoso Tested-by: Enric Balletbo i Serra Acked-by: Olof Johansson Signed-off-by: Lee Jones

mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper

2016-07-25T08:32:23+00:00

So that callers of cros_ec_cmd_xfer() don't have to repeat boilerplate code when checking for errors from the EC side. Signed-off-by: Tomeu Vizoso Reviewed-by: Benson Leung Signed-off-by: Brian Norris Acked-by: Lee Jones Tested-by: Enric Balletbo i Serra Signed-off-by: Thierry Reding

platform/chrome: cros_ec_dev - Fix security issue

2016-05-11T18:55:47+00:00

Prevent memory scribble by checking that ioctl buffer size parameters are sane. Without this check, on 32 bits system, if .insize = 0xffffffff - 20 and .outsize the amount to scribble, we would overflow, allocate a small amounts and be able to write outside of the malloc'ed area. Adding a hard limit allows argument checking of the ioctl. With the current EC, it is expected .insize and .outsize to be at around 512 bytes or less. Signed-off-by: Gwendal Grignou Signed-off-by: Olof Johansson

mfd: cros_ec: Small kerneldoc fix

2016-03-16T08:50:24+00:00

s/cros_ec_register/cros_ec_query_all Signed-off-by: Tomeu Vizoso Signed-off-by: Lee Jones

platform/chrome: Support reading/writing the vboot context

2015-10-07T22:05:53+00:00

Some EC implementations include a small nvram space used to store verified boot context data. This patch offers a way to expose this data to userspace. Reviewed-by: Javier Martinez Canillas Signed-off-by: Emilio López Signed-off-by: Olof Johansson

mfd: cros_ec: Support multiple EC in a system

2015-06-15T12:18:23+00:00

Chromebooks can have more than one Embedded Controller so the cros_ec device id has to be incremented for each EC registered. Add a new structure to represent multiple EC as different char devices (e.g: /dev/cros_ec, /dev/cros_pd). It connects to cros_ec_device and allows sysfs inferface for cros_pd. Also reduce number of allocated objects, make chromeos sysfs class object a static and add refcounting to prevent object deletion while command is in progress. Signed-off-by: Gwendal Grignou Reviewed-by: Dmitry Torokhov Signed-off-by: Javier Martinez Canillas Tested-by: Heiko Stuebner Acked-by: Lee Jones Acked-by: Olof Johansson Signed-off-by: Lee Jones

mfd: cros_ec: add bus-specific proto v3 code

2015-06-15T12:18:22+00:00

Add proto v3 support to the SPI, I2C, and LPC. Signed-off-by: Stephen Barber Signed-off-by: Javier Martinez Canillas Tested-by: Heiko Stuebner Reviewed-by: Gwendal Grignou Tested-by: Gwendal Grignou Acked-by: Lee Jones Acked-by: Olof Johansson Signed-off-by: Lee Jones

mfd: cros_ec: add proto v3 skeleton

2015-06-15T12:18:21+00:00

Add support in cros_ec.c to handle EC host command protocol v3. For v3+, probe for maximum shared protocol version and max request, response, and passthrough sizes. For now, this will always fall back to v2, since there is no bus-specific code for handling proto v3 packets. Signed-off-by: Stephen Barber Signed-off-by: Javier Martinez Canillas Reviewed-by: Gwendal Grignou Tested-by: Gwendal Grignou Tested-by: Heiko Stuebner Acked-by: Lee Jones Acked-by: Olof Johansson Signed-off-by: Lee Jones