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author | Steffen Trumtrar <s.trumtrar@pengutronix.de> | 2016-01-04 18:04:34 +0100 |
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committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-03-14 17:08:09 +0100 |
commit | cfe941628a04b572b0dba7a20fd4570edad74c81 (patch) | |
tree | d0e767fb67f2820622e3ad4b7593756b1bd8f99d /Documentation/devicetree/bindings/rtc | |
parent | f07fa9242ee72e8a1e926458759b895b3f1de115 (diff) | |
download | linux-stable-cfe941628a04b572b0dba7a20fd4570edad74c81.tar.gz linux-stable-cfe941628a04b572b0dba7a20fd4570edad74c81.tar.bz2 linux-stable-cfe941628a04b572b0dba7a20fd4570edad74c81.zip |
Documentation: devicetree: add epson rx6110 binding
Add the binding documentation for the Epson RX6110 RTC.
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'Documentation/devicetree/bindings/rtc')
-rw-r--r-- | Documentation/devicetree/bindings/rtc/epson,rx6110.txt | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/epson,rx6110.txt b/Documentation/devicetree/bindings/rtc/epson,rx6110.txt new file mode 100644 index 000000000000..3dc313e01f77 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/epson,rx6110.txt @@ -0,0 +1,39 @@ +Epson RX6110 Real Time Clock +============================ + +The Epson RX6110 can be used with SPI or I2C busses. The kind of +bus depends on the SPISEL pin and can not be configured via software. + +I2C mode +-------- + +Required properties: + - compatible: should be: "epson,rx6110" + - reg : the I2C address of the device for I2C + +Example: + + rtc: rtc@32 { + compatible = "epson,rx6110" + reg = <0x32>; + }; + +SPI mode +-------- + +Required properties: + - compatible: should be: "epson,rx6110" + - reg: chip select number + - spi-cs-high: RX6110 needs chipselect high + - spi-cpha: RX6110 works with SPI shifted clock phase + - spi-cpol: RX6110 works with SPI inverse clock polarity + +Example: + + rtc: rtc@3 { + compatible = "epson,rx6110" + reg = <3> + spi-cs-high; + spi-cpha; + spi-cpol; + }; |