[PATCH v6 5/6] Documentation: atmel-pmc: Add DT bindings for fast startup
From: Wenyou Yang <hidden>
Date: 2016-08-08 10:19:33
Also in:
linux-arm-kernel, linux-clk, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add DT bindings to configurate the PMC_FSMR and PMC_FSPR registers to trigger a fast restart signal to PMC. Signed-off-by: Wenyou Yang <redacted> Acked-by: Rob Herring <robh+dt@kernel.org> --- Changes in v6: None Changes in v5: - due to the DT property expression change, update the binding document. Changes in v4: - add Acked-by tag. Changes in v3: - update the property description. Changes in v2: - change the property name and property description. .../devicetree/bindings/arm/atmel-pmc.txt | 52 ++++++++++++++++++++++ 1 file changed, 52 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/atmel-pmc.txt b/Documentation/devicetree/bindings/arm/atmel-pmc.txt
index 795cc78..76fdc66 100644
--- a/Documentation/devicetree/bindings/arm/atmel-pmc.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-pmc.txt@@ -12,3 +12,55 @@ Examples: compatible = "atmel,at91rm9200-pmc"; reg = <0xfffffc00 0x100>; }; + +PMC Fast Startup Signals + +The PMC Fast Start Signals are used as the wake up source to trigger the PMC +to wake up the system from the ULP1 mode. + +required properties: +- compatible: should be "atmel,sama5d2-pmc-fast-startup". + +optional properties: +- atmel,wakeup-rtc-timer: boolean to enable RTC alarm wake-up. +- atmel,wakeup-usb-resume: boolean to enable USB resume wake-up. +- atmel,wakeup-sdmmc-cd: boolean to enable SDMMC card detect wake-up. +- atmel,wakeup-rxlp-match: boolean to enable RXLP matching condition wake-up. +- atmel,wakeup-acc-comparison: boolean to enable ACC comparison wake-up. + +The node contains child nodes for each wake-up input pin that the platform uses. + +Input nodes + +Required properties: +- reg: should contain the wake-up input index [0 - 10], to enable + the corresponding wake-up input. + +Optional properties: +- atmel,wakeup-active-high: boolean to declare the corresponding wake-up + input described by the child be active high. + The default is to be active low. + +Example: + + pmc: pmc@f0014000 { + compatible = "atmel,sama5d2-pmc"; + reg = <0xf0014000 0x160>; + + pmc_fast_restart { + compatible = "atmel,sama5d2-pmc-fast-startup"; + #address-cells = <1>; + #size-cells = <0>; + + atmel,wakeup-rtc-timer; + + wkpin: input@0 { + reg = <0>; + }; + + gmac_wol: input@10 { + reg = <10>; + atmel,wakeup-active-high; + }; + }; + };
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2.7.4