linux-kernel - [PATCH] ARM: dts: am335x-boneblack: add i2c1 DT entry

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Date:	Thu,  2 Jun 2016 15:41:50 +0800
From:	Yong Li <yong.b.li@...el.com>
To:	bcousson@...libre.com, tony@...mide.com, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	linux@....linux.org.uk, linux-omap@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc:	sdliyong@...il.com
Subject: [PATCH] ARM: dts: am335x-boneblack: add i2c1 DT entry

From: Yong Li <sdliyong@...il.com>

Without this patch, I2C-1 is missing on beaglebone black boards

Signed-off-by: Yong Li <sdliyong@...il.com>
---
 arch/arm/boot/dts/am335x-boneblack.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 55c0e95..7eee5c4 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -64,6 +64,13 @@
 			AM33XX_IOPAD(0x9b0, PIN_OUTPUT_PULLDOWN | MUX_MODE3)	/* xdma_event_intr0 */
 		>;
 	};
+
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			AM33XX_IOPAD(0x958, PIN_INPUT_PULLUP | MUX_MODE2)       /* spi0_d1.i2c1_sda */
+			AM33XX_IOPAD(0x95c, PIN_INPUT_PULLUP | MUX_MODE2)       /* spi0_cs0.i2c1_scl */
+		>;
+	};
 };
 
 &lcdc {
@@ -91,6 +98,14 @@
 	};
 };
 
+&i2c1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c2_pins>;
+
+       status = "okay";
+       clock-frequency = <100000>;
+};
+
 &rtc {
 	system-power-controller;
 };
-- 
2.7.4