Hi Linus,
On Friday 16 August 2013 17:00:29 Linus Walleij wrote:
> On Mon, Jul 29, 2013 at 8:39 PM, Laurent Pinchart wrote:
> > Add DT bindings for the pcf857x-compatible chips and parse the device
> > tree node in the driver.
> >
> > Signed-off-by: Laurent Pinchart
> > <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> > ---
> >
> > .../devicetree/bindings/gpio/gpio-pcf857x.txt | 69 +++++++++++++++++
>
> Do you think you can get one of the DT bindings mainatiners to ACK this
> part?
They're already CC'ed. I suppose vacations played a role in the lack of reply.
I'd like to avoid having to switch to stalker mode ;-)
> I am told we need to get more strict on binding review.
>
> It will be subject to timeout if it takes to long and you made a reasonable
> effort to get their consent though.
>
> > + - interrupt-controller: Identifies the node as an interrupt controller.
> > + - #interrupt-cells: Number of cells to encode an interrupt source,
> > shall be 2.
> > + - interrupt-parent: phandle of the parent interrupt controller.
> > + - interrupts: Interrupt specifier for the controllers interrupt.
>
> So this is another one of of those GPIO controller that are also interrupt
> controllers.
>
> So it will be subject to the same dilemma as the OMAP expander that has
> caused so much stir :-(
>
> Can you provide your input in the discussion regarding my patch with the
> subject:
> "RFC: interrupt consistency check for OF GPIO IRQs"
Done.
> This patch will affect this driver also, in a very direct way, by just
> stealing and setting as input any GPIO line used for an IRQ.
>
> > +Please refer to gpio.txt in this directory for details of the common GPIO
> > +bindings used by client devices.
> > +
> > +Example: PCF8575 I/O expander node
> > +
> > + pcf8575: gpio@20 {
> > + compatible = "nxp,pcf8575";
> > + reg = <0x20>;
> > + interrupt-parent = <&irqpin2>;
> > + interrupts = <3 0>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + };
>
> Not gpio-controller?
I've fixed that in my tree already, it seems I forgot to repost. I will do so
now.
> Apart from that it looks good, please help out with the gpio-controller vs
> interrupt-controller dilemma if you can because it's getting really
> frustrating...
--
Regards,
Laurent Pinchart
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