On Fri, Apr 25, 2014 at 09:11:06AM +0200, Geert Uytterhoeven wrote:
> On Fri, Apr 25, 2014 at 9:05 AM, Laurent Pinchart
> <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> >> + scif0: serial@ffe40000 {
> >> + compatible = "renesas,scif", "renesas,scif-r8a7779";
> >> + reg = <0xffe40000 265>;
> >> + interrupt-parent = <&gic>;
> >> + interrupts = <0 88 IRQ_TYPE_LEVEL_HIGH>;
> >> + clocks = <&cpg_clocks R8A7779_CLK_P>;
> >> + clock-names = "sci_ick";
> >
> > Clock handling in the sh-sci driver should probably be improved. The driver
> > currently requires an "sci_ick" interface clock and supports an optional
> > "sci_fck" functional clock. In practice, as far as I can see, platforms that
> > provide both sci_ick and sci_fck set the two clocks to the same source.
>
> That's right. As a consequence, the clock's enable count is incremented
> 3 times:
> - once for fck,
> - once for ick,
> - once for generic Runtime PM using the "NULL" clock.
This approach is fine by me.
But I think you need to maintain compatibility with the old
binding ("sci_ick" required, "sci_fsk") as it seems that
was included in v3.14.
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds
>
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