linux-kernel - [PATCH 2/2] arm: dts: dra7-evm: Add extcon dt nodes for USB ID detection

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Date:	Fri, 16 Aug 2013 15:43:49 +0530
From:	George Cherian <george.cherian@...com>
To:	<balbi@...com>, <myungjoo.ham@...sung.com>, <cw00.choi@...sung.com>
CC:	<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <grant.likely@...aro.org>,
	<rob@...dley.net>, <ian.campbell@...rix.com>,
	<swarren@...dotorg.org>, <mark.rutland@....com>,
	<pawel.moll@....com>, <rob.herring@...xeda.com>,
	<linux-omap@...r.kernel.org>, <linux-usb@...r.kernel.org>,
	<bcousson@...libre.com>, George Cherian <george.cherian@...com>
Subject: [PATCH 2/2] arm: dts: dra7-evm: Add extcon dt nodes for USB ID detection

Adding extcon dt nodes for USB ID detection.
ID pin is routed via the gpio expander , so adding pcf8575 nodes.
Changing otg mode to peripheral mode for usb1

Signed-off-by: George Cherian <george.cherian@...com>
---
 arch/arm/boot/dts/dra7-evm.dts | 42 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 41 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index acd3c09..fc9a506 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -17,6 +17,23 @@
 		device_type = "memory";
 		reg = <0x80000000 0x60000000>; /* 1536 MB */
 	};
+
+	extcon1: dra7x_extcon1 {
+		compatible = "ti,dra7xx-usb";
+		gpios = <&pcf_usb 1 0>,
+			<&gpio6 11 2>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <11>;
+	};
+
+	extcon2: dra7x_extcon2 {
+		compatible = "ti,dra7xx-usb";
+		gpios = <&pcf_usb 2 0>,
+			<&gpio6 11 2>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <11>;
+	};
+
 };
 
 &dra7_pmx_core {
@@ -33,10 +50,33 @@
         };
 };
 
+&i2c1 {
+	clock-frequency = <400000>;
+
+	pcf_lcd: pcf8575@20 {
+		compatible = "ti,pcf8575";
+		reg = <0x20>;
+		n_latch = <0xbc50>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	pcf_usb: pcf8575@21 {
+		compatible = "ti,pcf8575";
+		reg = <0x21>;
+		n_latch = <0xffff>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+};
+
 &dwc3_1 {
-	dr_mode = "otg";
+	dr_mode = "peripheral";
+	extcon = <&extcon1>;
 };
 
 &dwc3_2 {
 	dr_mode = "host";
+	extcon = <&extcon2>;
 };
-- 
1.8.1.4

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