Hello.

On 04/24/2014 06:33 PM, Tomi Valkeinen wrote:

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omap5-uevm has a tca6424a I/O expander. Add it to the .dts file.

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Signed-off-by: Tomi Valkeinen <redacted>
Cc: Tony Lindgren <tony@atomide.com>
---
   arch/arm/boot/dts/omap5-uevm.dts | 7 +++++++
   1 file changed, 7 insertions(+)

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diff --git a/arch/arm/boot/dts/omap5-uevm.dts

b/arch/arm/boot/dts/omap5-uevm.dts
index 3b99ec25b748..9e7581eaeb23 100644

--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts

@@ -434,6 +434,13 @@
       pinctrl-0 = <&i2c5_pins>;

       clock-frequency = <400000>;
+
+    tca6424a: tca6424a@22 {

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    The ePAPR standard [1] says: "The name of a node should be somewhat
generic,
reflecting the function of the device and not its precise programming
model.
If appropriate, the name should be one of the following choices:
[...]
    - gpio;"

Right. I wonder what the name should be... "gpio" is out, as the name
should be more specific.

    No, it's not out. The name should be "gpio@22", I think it would be unique.

We already have gpio1-8, which are the gpio
banks from the SoC.

    I don't understand why you are indexing the names while you probably have 
the address part after @ that makes them unique already.

  Tomi

WBR, Sergei