[PATCH v6 9/9] mfd: syscon: add Atmel GPBR DT bindings documention
From: Nicolas Ferre <hidden>
Date: 2014-09-23 08:23:53
Also in:
linux-devicetree, linux-rtc, lkml
On 22/09/2014 17:42, Boris BREZILLON :
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 <redacted>
Acked-by: Nicolas Ferre <redacted>
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--- Documentation/devicetree/bindings/mfd/atmel,gpbr.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/atmel,gpbr.txtdiff --git a/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt b/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt new file mode 100644 index 0000000..a285695 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt@@ -0,0 +1,15 @@ +* Device tree bindings for Atmel GPBR (General Purpose Backup Registers) + +The GPBR are a set of battery-backed registers. + +Required properties: +- compatible: "atmel,at91sam9260-gpbr", "syscon" +- reg: contains offset/length value of the GPBR memory + region. + +Example: + +gpbr: gpbr at fffffd50 { + compatible = "atmel,at91sam9260-gpbr", "syscon"; + reg = <0xfffffd50 0x10>; +};
-- Nicolas Ferre