[PATCH v7 4/4] tpm/st33zp24/dts/st33zp24-spi: Add dts documentation for st33zp24 spi phy
From: Christophe Ricard <hidden>
Date: 2015-02-01 21:36:51
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Reviewed-by: Jason Gunthorpe <jason.gunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org> Signed-off-by: Christophe Ricard <redacted> --- .../bindings/security/tpm/st33zp24-spi.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt
diff --git a/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt b/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt
new file mode 100644
index 0000000..158b016
--- /dev/null
+++ b/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt@@ -0,0 +1,34 @@ +* STMicroelectronics SAS. ST33ZP24 TPM SoC + +Required properties: +- compatible: Should be "st,st33zp24-spi". +- spi-max-frequency: Maximum SPI frequency (<= 10000000). + +Optional ST33ZP24 Properties: +- interrupt-parent: phandle for the interrupt gpio controller +- interrupts: GPIO interrupt to which the chip is connected +- lpcpd-gpios: Output GPIO pin used for ST33ZP24 power management D1/D2 state. +If set, power must be present when the platform is going into sleep/hibernate mode. + +Optional SoC Specific Properties: +- pinctrl-names: Contains only one value - "default". +- pintctrl-0: Specifies the pin control groups used for this controller. + +Example (for ARM-based BeagleBoard xM with ST33ZP24 on SPI4): + +&mcspi4 { + + status = "okay"; + + st33zp24@0 { + + compatible = "st,st33zp24-spi"; + + spi-max-frequency = <10000000>; + + interrupt-parent = <&gpio5>; + interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; + + lpcpd-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>; + }; +};
--
2.1.0
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