On Thu, 24 Oct 2013 00:49:42 +0200, Sebastian Reichel <sre@xxxxxxxxxx> wrote:
> On Wed, Oct 23, 2013 at 05:24:14PM -0500, Rob Herring wrote:
> > So a twl4030 device is only a power button? DT should describe the h/w
> > not a node for a sub-function of a device.
>
> No. TWL4030 is a companion chip for the OMAP3 processor. It provides
> miscellaneous functionality, e.g.:
>
> * RTC
> * Watchdog
> * Regulators
> * Keypad Matrix
> * USB
> * Audio
> * Vibrator
> * GPIO
> * ...
>
> One part of the functionality is the power button. The patch
> assumes, that the twl4030-pwrbutton node is used as follows:
>
> twl {
> /* ... common stuff ... */
>
> pwrbutton {
> compatible = "ti,twl4030-pwrbutton";
> interrupts = <8>;
> };
> };
>
> See also:
> * Documentation/devicetree/bindings/mfd/twl-familly.txt
> * Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt
> * Documentation/devicetree/bindings/sound/omap-twl4030.txt
> * Documentation/devicetree/bindings/mfd/twl4030-power.txt
> * Documentation/devicetree/bindings/mfd/twl4030-audio.txt
> * Documentation/devicetree/bindings/gpio/gpio-twl4030.txt
Wow, that's crazy! It is all one device so put all the bindings into a
single file.
g,
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