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Re: [PATCH v3 01/18] drivers/fsi: Add empty fsi bus definitions

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  Re: [PATCH v3 01/18] drivers/fsi: Add empty fsi bus definitions Geert Uytterhoeven <geert@linux-m68k.org> - 2017-02-23 12:10 +0100
    Re: [PATCH v3 01/18] drivers/fsi: Add empty fsi bus definitions Jeremy Kerr <jk@ozlabs.org> - 2017-02-23 15:30 +0100

#1586821 — Re: [PATCH v3 01/18] drivers/fsi: Add empty fsi bus definitions

Hi Chris, Jeremy,

On Wed, Feb 1, 2017 at 5:53 PM, Christopher Bostic
<cbostic@linux.vnet.ibm.com> wrote:
> From: Jeremy Kerr <jk@ozlabs.org>
>
> This change adds the initial (empty) fsi bus definition, and introduces
> drivers/fsi/.
>
> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
> Signed-off-by: Chris Bostic <cbostic@us.ibm.com>

> --- /dev/null
> +++ b/drivers/fsi/Kconfig
> @@ -0,0 +1,12 @@
> +#
> +# FSI subsystem
> +#
> +
> +menu "FSI support"
> +
> +config FSI
> +       tristate "FSI support"

I guess this should depend on some POWER symbol || COMPILE_TEST?

> +       ---help---
> +         FSI - the FRU Support Interface - is a simple bus for low-level
> +         access to POWER-based hardware.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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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#1586917

Hi Geert,

>> --- /dev/null
>> +++ b/drivers/fsi/Kconfig
>> @@ -0,0 +1,12 @@
>> +#
>> +# FSI subsystem
>> +#
>> +
>> +menu "FSI support"
>> +
>> +config FSI
>> +       tristate "FSI support"
> 
> I guess this should depend on some POWER symbol || COMPILE_TEST?

No, this is pretty hardware-independent - all it requires on the HW side
is two GPIOs.

Although the FSI slave devices are typically only present on POWER
systems, they can be driven from anything, with currently
implementations being on ARM and 32-bit powerpc.

Cheers,


Jeremy

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