From 7e9711aacc25fa6728c0625e4cfe7a141201b676 Mon Sep 17 00:00:00 2001
From: Keerthy J <j-keerthy@ti.com>
Date: Mon, 28 Jul 2014 11:48:53 +0530
Subject: [PATCH] ARM: dts: dra72-evm: Enable I2C1 node
I2C1 bus is used for the following peripherals
P8 connector (MLB)
TLV320AIC3106 Audio codec
J15 LCD header
24WC256 eeprom
TMP102AIDRLT temperature sensor
PCF8575 GPIO expander
PCA9306 i2c voltage translator -> Goes to P9 for comm interface
P2 expansion connector
TPS65917 PMIC
The slowest speed of all the peripherals seems to be 400KHz.
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
arch/arm/boot/dts/dra72-evm.dts | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 514702348818d..1e128627ff15c 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -19,6 +19,22 @@
};
};
+&dra7_pmx_core {
+ i2c1_pins: pinmux_i2c1_pins {
+ pinctrl-single,pins = <
+ 0x400 (PIN_INPUT | MUX_MODE0) /* i2c1_sda.i2c1_sda */
+ 0x404 (PIN_INPUT | MUX_MODE0) /* i2c1_scl.i2c1_scl */
+ >;
+ };
+};
+
+&i2c1 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins>;
+ clock-frequency = <400000>;
+};
+
&uart1 {
status = "okay";
};
--
2.30.2