platform/chrome: Updates for 3.17
Updates to the Chromebook/box platform drivers:
- A bugfix to pstore registration that makes it also work on non-Google
systems
- Addition of new shipped Chromebooks (later models have more probing
through ACPI so the need for these updates will be less over time).
- A couple of minor coding style updates
platform/chrome: chromeos_laptop - Add a limit for deferred retries
Limit the number of times we allow deferred probing to attempt to add
i2c devices. This will help with some device flakiness at probe time.
For example, some touchpads and touchscreens may be in transition between
bootloader and operational mode and may appear at neither address briefly.
Adapters, however, have no limit as it depends on when the i2c adapter driver
module is loaded. The module may even be loaded manually by the user using
modprobe or insmod.
By default, set MAX_I2C_DEVICE_DEFERALS to 5.
Based on this patch from the chromeos-kernel :
https://chromium-review.googlesource.com/168130
Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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