From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: Nicholas Piggin <npiggin@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
Scott Wood <oss@buserror.net>,
Alessio Igor Bogani <alessio.bogani@elettra.eu>,
Paul Mackerras <paulus@samba.org>, Daniel Axtens <dja@axtens.net>
Subject: Re: [PATCH v2 3/3] powerpc: Convert fsl_rstcr_restart to a reset handler
Date: Tue, 9 Aug 2016 11:47:37 -0700 [thread overview]
Message-ID: <CAHQ1cqFCfS52zaGEPJU-KRTRc7rjnFmUQwQgZYms3jaaYb41bQ@mail.gmail.com> (raw)
In-Reply-To: <20160801140351.49119867@roar.ozlabs.ibm.com>
On Sun, Jul 31, 2016 at 9:03 PM, Nicholas Piggin <npiggin@gmail.com> wrote:
> On Thu, 28 Jul 2016 16:07:18 -0700
> Andrey Smirnov <andrew.smirnov@gmail.com> wrote:
>
>> Convert fsl_rstcr_restart into a function to be registered with
>> register_reset_handler().
>>
>> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
>> ---
>>
>> Changes since v1:
>>
>> - fsl_rstcr_restart is registered as a reset handler in
>> setup_rstcr, replacing per-board arch_initcall approach
>
> Bear in mind I don't know much about the embedded or platform code!
>
> The documentation for reset notifiers says that they are expected
> to be registered from drivers, not arch code. That seems to only be
> intended to mean that the standard ISA or platform reset would
> normally be handled directly by the arch, whereas if you have an
> arch specific driver for a reset hardware that just happens to live
> under arch/, then fsl_rstcr_restart / mpc85xx_cds_restart would be
> valid use of reset notifier.
Yeah, IMHO there's quite a bit of code in sysdev/ which in ideal world
would go into drivers/ and I think fsl_rstcr_restart is among it
(similar example on MIPS is drivers/power/reset/brcmstb-reboot.c).
>
> So this change seems reasonable to me. One small question:
>
>
>> +static int mpc85xx_cds_restart_register(void)
>> +{
>> + static struct notifier_block restart_handler;
>> +
>> + restart_handler.notifier_call = mpc85xx_cds_restart;
>> + restart_handler.priority = 192;
>
> Should there be a header with #define's for these priorities?
I don't have any strong preference either way, I do however think that
introducing such #define should go into a separate patch-set, since
you'd probably want to propagate that change across all of the users
of the API.
Thanks,
Andrey
next prev parent reply other threads:[~2016-08-09 18:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-28 23:07 [PATCH v2 1/3] powerpc: Factor out common code in setup-common.c Andrey Smirnov
2016-07-28 23:07 ` [PATCH v2 2/3] powerpc: Call chained reset handlers during reset Andrey Smirnov
2016-08-01 3:47 ` Nicholas Piggin
2016-08-09 18:27 ` Andrey Smirnov
2016-07-28 23:07 ` [PATCH v2 3/3] powerpc: Convert fsl_rstcr_restart to a reset handler Andrey Smirnov
2016-08-01 4:03 ` Nicholas Piggin
2016-08-09 18:47 ` Andrey Smirnov [this message]
2016-08-10 0:58 ` Nicholas Piggin
2016-08-01 3:40 ` [PATCH v2 1/3] powerpc: Factor out common code in setup-common.c Nicholas Piggin
2016-08-09 16:30 ` Andrey Smirnov
2016-08-10 0:54 ` Nicholas Piggin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAHQ1cqFCfS52zaGEPJU-KRTRc7rjnFmUQwQgZYms3jaaYb41bQ@mail.gmail.com \
--to=andrew.smirnov@gmail.com \
--cc=alessio.bogani@elettra.eu \
--cc=dja@axtens.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=npiggin@gmail.com \
--cc=oss@buserror.net \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).