diff mbox

[1/2] ARM: dts: dra72-evm: Enable I2C1 node

Message ID 1406528334-4415-2-git-send-email-j-keerthy@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

J, KEERTHY July 28, 2014, 6:18 a.m. UTC 
From: Keerthy J <j-keerthy@ti.com>

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>
---
 arch/arm/boot/dts/dra72-evm.dts |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Comments

Keerthy July 28, 2014, 9:24 a.m. UTC | #1 
On Monday 28 July 2014 11:48 AM, Keerthy wrote:
> From: Keerthy J <j-keerthy@ti.com>
>
> 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.

Correcting the 'to' list.

>
> Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
> Signed-off-by: Nishanth Menon <nm@ti.com>
> Signed-off-by: Keerthy <j-keerthy@ti.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 5147023..1e12862 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";
>   };

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 5147023..1e12862 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";
 };