[PATCH 3/3] ARM: dts: cfa10049: Add the i2c muxer buses to the CFA-10049
Maxime Ripard
maxime.ripard at free-electrons.com
Tue Sep 25 10:02:38 EDT 2012
Hi
Le 24/09/2012 13:52, Sergei Shtylyov a écrit :
> On 24-09-2012 13:53, Maxime Ripard wrote:
>
>> This will allow to add the 3 Nuvoton NAU7802 ADCs and the NXP PCA9555
>> GPIO expander eventually.
>
>> Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
>> ---
>> arch/arm/boot/dts/imx28-cfa10049.dts | 33
>> +++++++++++++++++++++++++++++++++
>> 1 file changed, 33 insertions(+)
>
>> diff --git a/arch/arm/boot/dts/imx28-cfa10049.dts
>> b/arch/arm/boot/dts/imx28-cfa10049.dts
>> index a9288fb..9a55632 100644
>> --- a/arch/arm/boot/dts/imx28-cfa10049.dts
>> +++ b/arch/arm/boot/dts/imx28-cfa10049.dts
>> @@ -76,6 +76,39 @@
>> status = "okay";
>> };
>>
>> + i2cmux {
>> + compatible = "i2c-mux-gpio";
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + mux-gpios = <&gpio1 22 0 &gpio1 23 0>;
>> + i2c-parent = <&i2c1>;
>> +
>> + i2c at 0 {
>> + reg = <0>;
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>
> If you don't have any subnodes the above to props have no sense.
I will use them with subnodes eventually, with the 3 ADCs and the GPIO
expander. So these nodes won't be left empty.
On another hand, I can add these props when I'll add the devices, I have
no strong opinion here.
Maxime
--
Maxime Ripard, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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