linux-kernel - [PATCH 4/4] Documentation: atmel-at91: add DT bindings for fast startup

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Date:	Thu, 28 Jan 2016 18:19:16 +0800
From:	Wenyou Yang <wenyou.yang@...el.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Russell King <linux@....linux.org.uk>
CC:	<linux-clk@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Brown <broonie@...nel.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	Wenyou Yang <wenyou.yang@...el.com>
Subject: [PATCH 4/4] Documentation: atmel-at91: add DT bindings for fast startup

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 <wenyou.yang@...el.com>
---

 .../devicetree/bindings/arm/atmel-pmc.txt          |   74 ++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/atmel-pmc.txt b/Documentation/devicetree/bindings/arm/atmel-pmc.txt
index 795cc78..8d45ff9f 100644
--- a/Documentation/devicetree/bindings/arm/atmel-pmc.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-pmc.txt
@@ -12,3 +12,77 @@ 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,fast-startup-wake-up: boolean to enable the WKUP pin to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-secumod: boolean to enable the Security Mode to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-piobu0: boolean to enable the PIOBU0 Input to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-piobu1: boolean to enable the PIOBU1 Input to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-piobu2: boolean to enable the PIOBU2 Input to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-piobu3: boolean to enable the PIOBU3 Input to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-piobu4: boolean to enable the PIOBU4 Input to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-piobu5: boolean to enable the PIOBU5 Input to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-piobu6: boolean to enable the PIOBU6 Input to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-piobu7: boolean to enable the PIOBU7 Input to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-gmac-wol: boolean to enable the GMAC Wake-up On LAN
+  to trigger a fast restart signal to the PMC.
+- atmel,fast-startup-rtc-alarm: boolean to enable the RTC Alarm to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-usb-resume: boolean to enable the USB Resume to trigger
+  a fast restart signal to the PMC.
+- atmel,fast-startup-sdmmc-cd: boolean to enable the SDMMC Card Detect
+  to trigger a fast restart signal to the PMC.
+- atmel,fast-startup-rxlp-match: boolean to enable the Backuo UART Receive
+  Match Condition to trigger a fast restart signal to the PMC.
+- atmel,fast-startup-acc-comparison: boolean to enable the Analog Comparator
+  Controller (ACC) Comparison to to trigger a fast restart signal to the PMC.
+
+- atmel,fast-startup-wkup-pin-high: boolean to indicate if the WKUP Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+- atmel,fast-startup-piobu0-high: boolean to indicate if the PIOBU0 Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+- atmel,fast-startup-piobu1-high: boolean to indicate if the PIOBU1 Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+- atmel,fast-startup-piobu2-high: boolean to indicate if the PIOBU2 Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+- atmel,fast-startup-piobu3-high: boolean to indicate if the PIOBU3 Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+- atmel,fast-startup-piobu4-high: boolean to indicate if the PIOBU4 Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+- atmel,fast-startup-piobu5-high: boolean to indicate if the PIOBU5 Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+- atmel,fast-startup-piobu6-high: boolean to indicate if the PIOBU6 Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+- atmel,fast-startup-piobu7-high: boolean to indicate if the PIOBU7 Pin is
+  in the high level to trigger fast restart signal, otherwise low level.
+
+Example:
+
+	pmc: pmc@...14000 {
+		compatible = "atmel,sama5d2-pmc";
+		reg = <0xf0014000 0x160>;
+
+		pmc_fast_restart {
+			compatible = "atmel,sama5d2-pmc-fast-startup";
+			atmel,fast-startup-wake-up;
+			atmel,fast-startup-rtc-alarm;
+		};
+	};
-- 
1.7.9.5