On 30.07.14 18:48:03, Mark Rutland wrote:
> > >> + uaa0: serial@87e024000000 {
> > >> + compatible = "arm,pl011", "arm,primecell";
> > >> + reg = <0x87e0 0x24000000 0x0 0x1000>;
> > >> + interrupts = <1 21 4>;
> > >> + clocks = <&refclk50mhz>;
> > >> + clock-names = "apb_pclk";
> > >
> > > Is this actually the apb_pclk, or is the the uartclk? I assume it's the
> > > latter.
> >
> > Shouldn't new bindings have both clocks here? A single clock was a
> > mistake I think (mine in fact).
>
> I don't think we fixed it up in the end. It made drivers look a bit messy and
> it dropped off my priority queue.
On 31.07.14 10:22:19, Rob Herring wrote:
> On Thu, Jul 31, 2014 at 7:34 AM, Robert Richter <rric@xxxxxxxxxx> wrote:
> > On 30.07.14 11:37:38, Rob Herring wrote:
> >> On Wed, Jul 30, 2014 at 10:46 AM, Mark Rutland <mark.rutland@xxxxxxx> wrote:
> >> > On Wed, Jul 30, 2014 at 04:06:31PM +0100, Robert Richter wrote:
> >> >> From: Radha Mohan Chintakuntla <rchintakuntla@xxxxxxxxxx>
> >> >> + uaa0: serial@87e024000000 {
> >> >> + compatible = "arm,pl011", "arm,primecell";
> >> >> + reg = <0x87e0 0x24000000 0x0 0x1000>;
> >> >> + interrupts = <1 21 4>;
> >> >> + clocks = <&refclk50mhz>;
> >> >> + clock-names = "apb_pclk";
> >> >
> >> > Is this actually the apb_pclk, or is the the uartclk? I assume it's the
> >> > latter.
> >>
> >> Shouldn't new bindings have both clocks here? A single clock was a
> >> mistake I think (mine in fact).
> >
> > Do you mean
> > clock-names = "uartclk", "apb_pclk";
> > here?
>
> Yes, but Mark said this change never happened so maybe it is fine. In
> any case, follow the pl011 binding documentation.
Right:
Documentation/devicetree/bindings/arm/primecell.txt:
- clocks : From common clock binding. First clock is phandle to clock for apb
pclk. Additional clocks are optional and specific to those peripherals.
- clock-names : From common clock binding. Shall be "apb_pclk" for first clock.
Documentation/devicetree/bindings/serial/pl011.txt
- clocks: When present, must refer to exactly one clock named
"apb_pclk"
There is no binding documentation at all for "uartclk".
It seems we should should leave clock-names = "apb_pclk" as it is.
Mark, Rob, would this be ok?
Thanks,
-Robert
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