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| author | Simon Glass <sjg@chromium.org> | 2013-02-25 23:08:38 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-04-05 11:20:13 +0200 |
| commit | 89969009485fa9e62814afaa438c12c45d7d2def (patch) | |
| tree | 91fda02a31a094727ade6f8bb35aebdd392b9e61 /drivers/mfd/Kconfig | |
| parent | mfd: Add ChromeOS EC implementation (diff) | |
| download | linux-89969009485fa9e62814afaa438c12c45d7d2def.tar.xz linux-89969009485fa9e62814afaa438c12c45d7d2def.zip | |
mfd: Add ChromeOS EC I2C driver
This uses an I2C bus to talk to the ChromeOS EC. The protocol
is defined by the EC and is fairly simple, with a length byte,
checksum, command byte and version byte (to permit easy creation
of new commands).
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/Kconfig')
| -rw-r--r-- | drivers/mfd/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index a8bafb560196..4e54b5b01295 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -29,6 +29,16 @@ config MFD_CROS_EC You also ned to enable the driver for the bus you are using. The protocol for talking to the EC is defined by the bus driver. +config MFD_CROS_EC_I2C + tristate "ChromeOS Embedded Controller (I2C)" + depends on MFD_CROS_EC && I2C + + help + If you say Y here, you get support for talking to the ChromeOS + EC through an I2C bus. This uses a simple byte-level protocol with + a checksum. Failing accesses will be retried three times to + improve reliability. + config MFD_88PM800 tristate "Support Marvell 88PM800" depends on I2C=y && GENERIC_HARDIRQS |