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This is the driver for the USB Type C cable detection mechanism
built into the ChromeOS Embedded Controller on systems that
have USB Type-C ports.
At present, this allows for the presence of display out, but in
future, it may also be used to notify host and device type cables
and the presence of power.
Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Chanwoo Choi <cw00.chio@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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Don't let EC control suspend/resume sequence. If the EC controls the
lightbar and sets the sequence when it notices the chipset transitioning
between states, we can't make exceptions for cases where we don't want
to activate the lightbar. Instead, let's move the suspend/resume
notifications into the kernel so we can selectively play the sequences.
Signed-off-by: Eric Caruso <ejcaruso@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
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Add a program feature so we can upload and run programs for lightbar
sequences. We should be able to use this to shift sequences out of the
EC and save space there.
$ cat <suitable program bin> > /sys/devices/.../cros_ec/program
$ echo program > /sys/devices/.../cros_ec/sequence
Signed-off-by: Eric Caruso <ejcaruso@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
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ec_params_console_read_v1 is used to capture EC logs from kernel,
and ec_params_get_cmd_versions_v1 is used to probe whether EC
supports that command.
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Benson Leung <bleung@chromium.org>
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Sync up with mainline to bring in changes to input subsystem merged
through other trees.
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Frameworks:
- Add new !TOUCHSCREEN_SUN4I dependency for SUN4I_GPADC
- List include/dt-bindings/mfd/* to files supported in MAINTAINERS
New Drivers:
- Intel Apollo Lake SPI NOR
- ST STM32 Timers (Advanced, Basic and PWM)
- Motorola 6556002 CPCAP (PMIC)
New Device Support:
- Add support for AXP221 to axp20x
- Add support for Intel Gemini Lake to intel-lpss-pci
- Add support for MT6323 LED to mt6397-core
- Add support for COMe-bBD#, COMe-bSL6, COMe-bKL6, COMe-cAL6 and
COMe-cKL6 to kempld-core
New Functionality:
- Add support for Analog CODAC to sun6i-prcm
- Add support for Watchdog to lpc_ich
Fix-ups:
- Error handling improvements; axp288_charger, axp20x, ab8500-sysctrl
- Adapt platform data handling; axp20x
- IRQ handling improvements; arizona, axp20x
- Remove superfluous code; arizona, axp20x, lpc_ich
- Trivial coding style/spelling fixes; axp20x, abx500, mfd.txt
- Regmap fix-ups; axp20x
- DT changes; mfd.txt, aspeed-lpc, aspeed-gfx, ab8500-core, tps65912,
mt6397
- Use new I2C probing mechanism; max77686
- Constification; rk808
Bug Fixes:
- Stop data transfer whilst suspended; cros_ec"
* tag 'mfd-for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (43 commits)
mfd: lpc_ich: Enable watchdog on Intel Apollo Lake PCH
mfd: lpc_ich: Remove useless comments in core part
mfd: Add support for several boards to Kontron PLD driver
mfd: constify regmap_irq_chip structures
MAINTAINERS: Add include/dt-bindings/mfd to MFD entry
mfd: cpcap: Add minimal support
mfd: mt6397: Add MT6323 LED support into MT6397 driver
Documentation: devicetree: Add LED subnode binding for MT6323 PMIC
mfd: tps65912: Export OF device ID table as module aliases
mfd: ab8500-core: Rename clock device and compatible
mfd: cros_ec: Send correct suspend/resume event to EC
mfd: max77686: Remove I2C device ID table
mfd: max77686: Use the struct i2c_driver .probe_new instead of .probe
mfd: max77686: Use of_device_get_match_data() helper
mfd: max77686: Don't attempt to get i2c_device_id .data
mfd: ab8500-sysctrl: Handle probe deferral
mfd: intel-lpss: Add Intel Gemini Lake PCI IDs
mfd: axp20x: Fix AXP806 access errors on cold boot
mfd: cros_ec: Send suspend state notification to EC
mfd: cros_ec: Prevent data transfer while device is suspended
...
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Notify EC when going to or returning from suspend so that proper actions
related to wake events can be taken.
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Handle the barometer sensor presented by the ChromeOS EC Sensor hub.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo Serra <enric.balletbo@collabora.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Some form factors (detachables/tablets) may not have a keyboard and
thus user may have to resort to using a defined EC UI to send sysrq(s)
to the kernel in order to collect crash info etc. This UI typically
is in the form of user pressing volume / power buttons in some specific
sequence and for some specific time. Add a new EC event that allows EC
to communicate the sysrq to the AP.
(We're skipping event number 5 because it has been reserved for
something else)
Signed-off-by: Rajat Jain <rajatja@google.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add switch to report tablet mode.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo Serra <enric.balletbo@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Add the defines for the new buttons and switches connected to the CrosEC.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Use the EC_CMD_GET_FEATURES message to check the supported features for
each MCU.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
[tomeu: adapted to changes in mainline]
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
[enric: remove references to USB PD feature and do it more generic]
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
For the MFD changes:
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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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>
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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 <rspangler@chromium.org>
Cc: Vincent Palatin <vpalatin@chromium.org>
Cc: Benson Leung <bleung@chromium.org>
Signed-off-by: Vic Yang <victoryang@google.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The EC_CMD_PWM_{GET,SET}_DUTY commands allow us to control a PWM that is
attached to the EC, rather than the main host SoC. The API provides
functionality-based (e.g., keyboard light, backlight) or index-based
addressing of the PWM(s). Duty cycles are represented by a 16-bit value,
where 0 maps to 0% duty cycle and U16_MAX maps to 100%. The period
cannot be controlled.
This command set is more generic than, e.g.,
EC_CMD_PWM_{GET,SET}_KEYBOARD_BACKLIGHT and could possibly used to
replace it on future products.
Let's update the command header to include the definitions.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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Update cros_ec_commands.h to the latest version in the EC
firmware sources and add power domain and passthru commands.
Also, update lightbar to use new command names.
Signed-off-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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In <https://lkml.org/lkml/2014/6/10/265> pointed out that the 10-bit
flag in the cros_ec_tunnel was useless. It went into a 16-bit flags
field but was defined at (1 << 16).
Since we have no 10-bit i2c devices on the other side of the tunnel on
any known devices this was never a problem. Until we do it makes
sense to remove this code. On the EC side the code to handle this
flag was removed in <https://chromium-review.googlesource.com/204162>.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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This just updates include/linux/mfd/cros_ec_commands.h to match the
latest EC version (which is the One True Source for such things). See
<https://chromium.googlesource.com/chromiumos/platform/ec>
[dianders: took today's ToT version from the Chromium OS EC; deleted
references to cros_ec_dev and cros_ec_lpc since those aren't upstream
yet]
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This file is included verbatim from the ChromeOS EC respository.
Ideally we would prefer to avoid changing it, to make it easier
to track this rapidly-changing file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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