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author | Sascha Hauer <s.hauer@pengutronix.de> | 2017-06-06 08:07:28 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2017-06-06 08:07:28 +0200 |
commit | bb2de9a333d17bb1b048ad208002501226b83f03 (patch) | |
tree | 8ef2e876ba43af235c45cb2280885e9c67ba5548 /dts/Bindings/gpio/ni,169445-nand-gpio.txt | |
parent | 79e6629b02fb3a296b5dc70f16dec0f8d415ccf8 (diff) | |
download | barebox-bb2de9a333d17bb1b048ad208002501226b83f03.tar.gz barebox-bb2de9a333d17bb1b048ad208002501226b83f03.tar.xz |
dts: update to v4.12-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/gpio/ni,169445-nand-gpio.txt')
-rw-r--r-- | dts/Bindings/gpio/ni,169445-nand-gpio.txt | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/dts/Bindings/gpio/ni,169445-nand-gpio.txt b/dts/Bindings/gpio/ni,169445-nand-gpio.txt new file mode 100644 index 0000000000..ca2f8c745a --- /dev/null +++ b/dts/Bindings/gpio/ni,169445-nand-gpio.txt @@ -0,0 +1,38 @@ +Bindings for the National Instruments 169445 GPIO NAND controller + +The 169445 GPIO NAND controller has two memory mapped GPIO registers, one +for input (the ready signal) and one for output (control signals). It is +intended to be used with the GPIO NAND driver. + +Required properties: + - compatible: should be "ni,169445-nand-gpio" + - reg-names: must contain + "dat" - data register + - reg: address + size pairs describing the GPIO register sets; + order must correspond with the order of entries in reg-names + - #gpio-cells: must be set to 2. The first cell is the pin number and + the second cell is used to specify the gpio polarity: + 0 = active high + 1 = active low + - gpio-controller: Marks the device node as a gpio controller. + +Optional properties: + - no-output: disables driving output on the pins + +Examples: + gpio1: nand-gpio-out@1f300010 { + compatible = "ni,169445-nand-gpio"; + reg = <0x1f300010 0x4>; + reg-names = "dat"; + gpio-controller; + #gpio-cells = <2>; + }; + + gpio2: nand-gpio-in@1f300014 { + compatible = "ni,169445-nand-gpio"; + reg = <0x1f300014 0x4>; + reg-names = "dat"; + gpio-controller; + #gpio-cells = <2>; + no-output; + }; |