Re: [PATCH 2/5] ARM: dts: Device tree for AXM55xx.

[Linus Walleij]

On Tue, Apr 15, 2014 at 5:23 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Tuesday 15 April 2014 17:20:47 Anders Berg wrote:
>> > > +                   gpio0: gpio@2010092000 {
>> > > +                           #gpio-cells = <2>;
>> > > +                           compatible = "arm,pl061", "arm,primecell";
>> > > +                           gpio-controller;
>> > > +                           reg = <0x20 0x10092000 0x00 0x1000>;
>> > > +                           interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
>> > > +                                        <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
>> > > +                                        <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
>> > > +                                        <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
>> > > +                                        <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
>> > > +                                        <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
>> > > +                                        <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
>> > > +                                        <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
>> > > +                           clocks = <&clk_per>;
>> > > +                           clock-names = "apb_pclk";
>> > > +                           status = "disabled";
>> >
>> > The pl061 binding does not specify any clocks at all. Do we need to update
>> > that?
>>
>> Doesn't all AMBA devices need at least one apb_pclk since the bus driver does
>> clk_get(...,"apb_pclk") before calling probe()?
>
> Yes, I was mostly wondering whether we had a policy about whether this clock
> should also be listed in the binding or not. My feeling is that it's better
> to make that explicit.

A separate patch to the GPIO maintainer for this will be accepted. :-)

Yours,
Linus Walleij
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