mfd: syscon: Add Atmel GPBR DT bindings documention
authorBoris BREZILLON <boris.brezillon@free-electrons.com>
Thu, 11 Sep 2014 13:18:45 +0000 (15:18 +0200)
committerLee Jones <lee.jones@linaro.org>
Fri, 26 Sep 2014 07:23:56 +0000 (08:23 +0100)
commitc896e68ec1a0548f29b3d29f6c14a29cf06aa56c
treea23349187badefc6bb46da3960309b31013b46f3
parent2adb3b8e6fa310d64ea6209f8ac5d5575839f6da
mfd: syscon: Add Atmel GPBR DT bindings documention

The GPBR block provides a set of battery-backed registers that can be used
to save data which need to be kept when the system is powered down and
VDD-core is maintained by an external battery.

A typical usage is the RTT block (when used as an RTC) which needs one of
those registers to save the current time.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Johan Hovold <johan@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Documentation/devicetree/bindings/mfd/atmel,gpbr.txt [new file with mode: 0644]