6f18ce8026
Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").
Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
25 lines
799 B
Plaintext
25 lines
799 B
Plaintext
* IBM/AMCC/APM GPIO Controller for PowerPC 4XX series and compatible SoCs
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All GPIOs are pin-shared with other functions. DCRs control whether a
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particular pin that has GPIO capabilities acts as a GPIO or is used for
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another purpose. GPIO outputs are separately programmable to emulate
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an open-drain driver.
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Required properties:
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- compatible: must be "ibm,ppc4xx-gpio"
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- reg: address and length of the register set for the device
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- #gpio-cells: must be set to 2. The first cell is the pin number
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and the second cell is used to specify the gpio polarity:
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0 = active high
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1 = active low
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- gpio-controller: marks the device node as a gpio controller.
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Example:
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GPIO0: gpio@ef600b00 {
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compatible = "ibm,ppc4xx-gpio";
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reg = <0xef600b00 0x00000048>;
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#gpio-cells = <2>;
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gpio-controller;
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};
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