linux-kernel - [PATCH v2 11/14] DEVICETREE: Add bindings for PIC32 SDHCI host controller

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Message-ID: <1450133093-7053-12-git-send-email-joshua.henderson@microchip.com>
Date:	Mon, 14 Dec 2015 15:42:13 -0700
From:	Joshua Henderson <joshua.henderson@...rochip.com>
To:	<linux-kernel@...r.kernel.org>
CC:	<linux-mips@...ux-mips.org>, <ralf@...ux-mips.org>,
	Andrei Pistirica <andrei.pistirica@...rochip.com>,
	Joshua Henderson <joshua.henderson@...rochip.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, <devicetree@...r.kernel.org>
Subject: [PATCH v2 11/14] DEVICETREE: Add bindings for PIC32 SDHCI host controller

From: Andrei Pistirica <andrei.pistirica@...rochip.com>

Document the devicetree bindings for the SDHCI peripheral found on
Microchip PIC32 class devices.

Signed-off-by: Andrei Pistirica <andrei.pistirica@...rochip.com>
Signed-off-by: Joshua Henderson <joshua.henderson@...rochip.com>
Cc: Ralf Baechle <ralf@...ux-mips.org>
---
 .../bindings/mmc/microchip,sdhci-pic32.txt         |   29 ++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.txt

diff --git a/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.txt b/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.txt
new file mode 100644
index 0000000..71ad57e
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.txt
@@ -0,0 +1,29 @@
+* Microchip PIC32 SDHCI Controller
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-pic32 driver.
+
+Required properties:
+- compatible: Should be "microchip,pic32mzda-sdhci"
+- interrupts: Should contain interrupt
+- clock-names: Should be "base_clk", "sys_clk".
+               See: Documentation/devicetree/bindings/resource-names.txt
+- clocks: Phandle to the clock.
+          See: Documentation/devicetree/bindings/clock/clock-bindings.txt
+- pinctrl-names: A pinctrl state names "default" must be defined.
+- pinctrl-0: Phandle referencing pin configuration of the SDHCI controller.
+             See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
+
+Example:
+
+	sdhci@...ec000 {
+		compatible = "microchip,pic32mzda-sdhci";
+		reg = <0x1f8ec000 0x100>;
+		interrupts = <191 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&REFCLKO4>, <&PBCLK5>;
+		clock-names = "base_clk", "sys_clk";
+		bus-width = <4>;
+		cap-sd-highspeed;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sdhc1>;
+	};
-- 
1.7.9.5

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