linux-kernel - [PATCH 12/14] DEVICETREE: Add bindings for PIC32 SDHC host controller

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Message-ID: <1448065205-15762-13-git-send-email-joshua.henderson@microchip.com>
Date:	Fri, 20 Nov 2015 17:17:24 -0700
From:	Joshua Henderson <joshua.henderson@...rochip.com>
To:	<linux-kernel@...r.kernel.org>
CC:	<linux-mips@...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 12/14] DEVICETREE: Add bindings for PIC32 SDHC host controller

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

Document the devicetree bindings for the SDHC 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>
---
 .../devicetree/bindings/mmc/sdhci-pic32.txt        |   24 ++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-pic32.txt

diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt b/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt
new file mode 100644
index 0000000..f16388c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt
@@ -0,0 +1,24 @@
+* 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,pic32-sdhci"
+- reg: Should contain registers location and length
+- interrupts: Should contain interrupt
+- pinctrl: Should contain pinctrl for data and command lines
+
+Optional properties:
+- no-1-8-v: 1.8V voltage selection not supported
+- piomode: disable DMA support
+
+Example:
+
+	sdhci@...ec000 {
+		compatible = "microchip,pic32-sdhci";
+		reg = <0x1f8ec000 0x100>;
+		interrupts = <SDHC_EVENT DEFAULT_INT_PRI IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&REFCLKO4>, <&PBCLK5>;
+		clock-names = "base_clk", "sys_clk";
+	};
-- 
1.7.9.5

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