Hi Marco,
On Fri, 08 Feb 2008 11:02:16 +0100
Marco Stornelli <[EMAIL PROTECTED]> wrote:
> how can specify a led device in a dts file? These leds are connected
> with gpio to the microprocessor. I can't find anything like a led node
> in the dts files of the other boards. Have you got any suggestions?
Although I'm not sure if it's the "standard" way, we just added a
"home-made" node like this:
[EMAIL PROTECTED] {
device_type = "leds";
compatible = "reset-leds";
reg = <c0018000 00008000>;
};
and then just get the info in the probe function for the led driver
we placed in drivers/leds/:
/* Get device info from OF tree */
np = of_find_compatible_node(NULL, "leds", "reset-leds");
if (!np) {
dev_err(&pdev->dev, "Could not find device tree node for
reset-leds\n");
goto error_classdev;
}
if (of_address_to_resource(np, 0, &res)) {
dev_err(&pdev->dev, "Could not convert reset-leds device tree
address\n");
of_node_put(np);
goto error_classdev;
}
...
At least this was all the information we needed from the device tree.
// Simon
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