linux-kernel - [PATCH v3 13/14] Documentation: atmel-quadspi: add binding file for Atmel QSPI driver

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Message-ID: <6661b477af9b72cca1a29cac8a64c2295116cd8b.1454505161.git.cyrille.pitchen@atmel.com>
Date:	Wed, 3 Feb 2016 14:26:58 +0100
From:	Cyrille Pitchen <cyrille.pitchen@...el.com>
To:	<computersforpeace@...il.com>, <linux-mtd@...ts.infradead.org>
CC:	<nicolas.ferre@...el.com>, <boris.brezillon@...e-electrons.com>,
	<marex@...x.de>, <vigneshr@...com>, <beanhuo@...ron.com>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	Cyrille Pitchen <cyrille.pitchen@...el.com>
Subject: [PATCH v3 13/14] Documentation: atmel-quadspi: add binding file for Atmel QSPI driver

This patch documents the DT bindings for the driver of the Atmel QSPI
controller embedded inside sama5d2x SoCs.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@...el.com>
Acked-by: Rob Herring <robh@...nel.org>
Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
---
 .../devicetree/bindings/mtd/atmel-quadspi.txt      | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/atmel-quadspi.txt

diff --git a/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt b/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt
new file mode 100644
index 000000000000..489807005eda
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt
@@ -0,0 +1,32 @@
+* Atmel Quad Serial Peripheral Interface (QSPI)
+
+Required properties:
+- compatible:     Should be "atmel,sama5d2-qspi".
+- reg:            Should contain the locations and lengths of the base registers
+                  and the mapped memory.
+- reg-names:      Should contain the resource reg names:
+                  - qspi_base: configuration register address space
+                  - qspi_mmap: memory mapped address space
+- interrupts:     Should contain the interrupt for the device.
+- clocks:         The phandle of the clock needed by the QSPI controller.
+- #address-cells: Should be <1>.
+- #size-cells:    Should be <0>.
+
+Example:
+
+spi@...20000 {
+	compatible = "atmel,sama5d2-qspi";
+	reg = <0xf0020000 0x100>, <0xd0000000 0x8000000>;
+	reg-names = "qspi_base", "qspi_mmap";
+	interrupts = <52 IRQ_TYPE_LEVEL_HIGH 7>;
+	clocks = <&spi0_clk>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi0_default>;
+	status = "okay";
+
+	m25p80@0 {
+		...
+	};
+};
-- 
1.8.2.2