linux-kernel - [PATCH v3 3/3] arm: mvebu: enable gpio expander over i2c on Mirabox platform

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Message-Id: <1358889025-8530-4-git-send-email-gregory.clement@free-electrons.com>
Date:	Tue, 22 Jan 2013 22:10:25 +0100
From:	Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:	Linus Walleij <linus.walleij@...aro.org>,
	Grant Likely <grant.likely@...retlab.ca>
Cc:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Andreas Schallenberg <Andreas.Schallenberg@...itytechnica.com>,
	Roland Stigge <stigge@...com.de>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>
Subject: [PATCH v3 3/3] arm: mvebu: enable gpio expander over i2c on Mirabox platform

The Globalscale Mirabox platform can be connected to the JTAG/GPIO box
through the Multi-IO port. The GPIO box use the NXP PCA9505 I/O port
expansion IC to provide 40-bit parallel input/output GPIOs. This patch
enable the use of this expander on the Mirabox.

Signed-off-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
Acked-by: Linus Walleij <linus.walleij@...aro.org>
---
 arch/arm/boot/dts/armada-370-mirabox.dts |   10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/armada-370-mirabox.dts b/arch/arm/boot/dts/armada-370-mirabox.dts
index 3b40713..d9b32d3 100644
--- a/arch/arm/boot/dts/armada-370-mirabox.dts
+++ b/arch/arm/boot/dts/armada-370-mirabox.dts
@@ -52,5 +52,15 @@
 			phy = <&phy1>;
 			phy-mode = "rgmii-id";
 		};
+		i2c@...11000 {
+			status = "okay";
+			clock-frequency = <100000>;
+			pca9505: pca9505@25 {
+				compatible = "nxp,pca9505";
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x25>;
+			};
+		};
 	};
 };
-- 
1.7.9.5

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