Re: [PATCH v3 18/19] sh: IO-DATA HDL-U (a,k.a landisk) support

[Yoshinori Sato]

On Tue, 28 Jun 2016 16:51:25 +0900,
Geert Uytterhoeven wrote:
> 
> Hi Sato-san,
> 
> On Tue, Jun 28, 2016 at 8:36 AM, Yoshinori Sato
> <ysato@xxxxxxxxxxxxxxxxxxxx> wrote:
> > Signed-off-by: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
> > ---
> >  .../interrupt-controller/iodata-landisk.txt        | 34 ++++++++++
> >  arch/sh/boot/dts/Makefile                          |  2 +
> >  arch/sh/boot/dts/landisk.dts                       | 62 ++++++++++++++++++
> >  drivers/irqchip/Makefile                           |  2 +-
> >  drivers/irqchip/irq-io-landisk.c                   | 73 ++++++++++++++++++++++
> >  5 files changed, 172 insertions(+), 1 deletion(-)
> 
> This needs to be split in two (or three) patches:
>   - irqchip driver and DT
>   - arch/sh

OK.

> >  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt
> >  create mode 100644 arch/sh/boot/dts/landisk.dts
> >  create mode 100644 drivers/irqchip/irq-io-landisk.c
> >
> > diff --git a/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt b/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt
> > new file mode 100644
> > index 0000000..9f87f2c
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/interrupt-controller/iodata-landisk.txt
> > @@ -0,0 +1,34 @@
> > +DT bindings for the I/O DATA HDL-U interrupt controller
> > +
> > +Required properties:
> > +
> > +  - compatible: has to be "iodata,landisk-intc".
> > +
> > +  - reg: Base address and length of interrupt controller register.
> > +
> > +  - interrupt-controller: Identifies the node as an interrupt controller.
> > +
> > +  - #address-cells: has to be <0>.
> 
> Why do you need #address-cells? There are no subnodes.

Ouch.
I forgot remove line.
Thanks.

> > +
> > +  - #interrupt-cells: has to be <1>: an interrupt index.
> > +
> > +  - interrupt-map: Interrupt mapping on parent controller.
> 
> > --- /dev/null
> > +++ b/arch/sh/boot/dts/landisk.dts
> > @@ -0,0 +1,62 @@
> > +/dts-v1/;
> > +
> > +#include "sh7751.dtsi"
> > +
> > +/ {
> > +       model = "I/O DATA HDL-U";
> > +       compatible = "iodata,hdl-u";
> > +       #address-cells = <1>;
> > +       #size-cells = <1>;
> > +       interrupt-parent = <&shintc>;
> > +       chosen {
> > +               stdout-path = &sci1;
> > +               bootargs = "console=ttySC1,115200";
> 
> The console= parameter can be removed from bootargs.
> You can specify the console speed using
> 
>         stdout-path = "&sci1:115200";
> 
> > +       };
> 
> 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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-- 
Yoshinori Sato
<ysato@xxxxxxxxxxxxxxxxxxxx>