From: Richard Cochran <richardcochran@gmail.com>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, devicetree@vger.kernel.org,
galak@codeaurora.org, netdev@vger.kernel.org,
linux-sh@vger.kernel.org,
Mitsuhiro Kimura <mitsuhiro.kimura.kc@renesas.com>,
masaru.nagai.vx@renesas.com
Subject: Re: [PATCH resend] Renesas Ethernet AVB driver
Date: Tue, 14 Apr 2015 16:30:03 +0000 [thread overview]
Message-ID: <20150414163002.GB4309@localhost.localdomain> (raw)
In-Reply-To: <552CE890.3040103@cogentembedded.com>
On Tue, Apr 14, 2015 at 01:14:40PM +0300, Sergei Shtylyov wrote:
> >It is surely avoidable. The driver knows (or should know) whether or
> >not the hardware has been configured or not.
>
> So you only want to avoid the register read here?
No, that is not what I mean. The two callers are gettime and adjtime.
Can't you make sure the hardware is ready before you register the
clock in the first place? If not, what is purpose of returning EBUSY?
Thanks,
Richard
WARNING: multiple messages have this Message-ID (diff)
From: Richard Cochran <richardcochran@gmail.com>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, devicetree@vger.kernel.org,
galak@codeaurora.org, netdev@vger.kernel.org,
linux-sh@vger.kernel.org,
Mitsuhiro Kimura <mitsuhiro.kimura.kc@renesas.com>,
masaru.nagai.vx@renesas.com
Subject: Re: [PATCH resend] Renesas Ethernet AVB driver
Date: Tue, 14 Apr 2015 18:30:03 +0200 [thread overview]
Message-ID: <20150414163002.GB4309@localhost.localdomain> (raw)
In-Reply-To: <552CE890.3040103@cogentembedded.com>
On Tue, Apr 14, 2015 at 01:14:40PM +0300, Sergei Shtylyov wrote:
> >It is surely avoidable. The driver knows (or should know) whether or
> >not the hardware has been configured or not.
>
> So you only want to avoid the register read here?
No, that is not what I mean. The two callers are gettime and adjtime.
Can't you make sure the hardware is ready before you register the
clock in the first place? If not, what is purpose of returning EBUSY?
Thanks,
Richard
next prev parent reply other threads:[~2015-04-14 16:30 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-27 23:13 [PATCH resend] Renesas Ethernet AVB driver Sergei Shtylyov
2015-03-27 23:13 ` Sergei Shtylyov
2015-03-28 5:17 ` Lino Sanfilippo
2015-03-28 5:17 ` Lino Sanfilippo
2015-03-28 8:36 ` Richard Cochran
2015-03-28 8:36 ` Richard Cochran
2015-03-28 13:55 ` Sergei Shtylyov
2015-03-28 13:55 ` Sergei Shtylyov
2015-03-28 8:28 ` Richard Cochran
2015-03-28 8:28 ` Richard Cochran
2015-03-28 18:26 ` David Miller
2015-03-28 18:26 ` David Miller
2015-03-30 22:51 ` Sergei Shtylyov
2015-03-30 22:51 ` Sergei Shtylyov
2015-03-31 6:43 ` Richard Cochran
2015-03-31 6:43 ` Richard Cochran
2015-03-31 9:01 ` Richard Cochran
2015-03-31 9:01 ` Richard Cochran
2015-03-31 15:38 ` David Miller
2015-03-31 15:38 ` David Miller
2015-03-31 17:40 ` Sergei Shtylyov
2015-03-31 17:40 ` Sergei Shtylyov
2015-03-31 17:48 ` David Miller
2015-03-31 17:48 ` David Miller
2015-04-03 6:27 ` masaru.nagai.vx
2015-04-03 6:27 ` masaru.nagai.vx
2015-04-03 6:27 ` masaru.nagai.vx
2015-04-12 22:03 ` Sergei Shtylyov
2015-04-12 22:03 ` Sergei Shtylyov
2015-04-09 13:11 ` Bjørn Mork
2015-04-09 13:11 ` Bjørn Mork
2015-04-09 17:57 ` David Miller
2015-04-09 17:57 ` David Miller
2015-04-13 20:23 ` Sergei Shtylyov
2015-04-13 20:23 ` Sergei Shtylyov
2015-04-14 5:27 ` Richard Cochran
2015-04-14 5:27 ` Richard Cochran
2015-04-14 10:14 ` Sergei Shtylyov
2015-04-14 10:14 ` Sergei Shtylyov
2015-04-14 16:30 ` Richard Cochran [this message]
2015-04-14 16:30 ` Richard Cochran
2015-04-14 16:58 ` Sergei Shtylyov
2015-04-14 16:58 ` Sergei Shtylyov
2015-04-14 18:30 ` Richard Cochran
2015-04-14 18:30 ` Richard Cochran
2015-04-15 1:01 ` masaru.nagai.vx
2015-04-15 1:01 ` masaru.nagai.vx
2015-04-15 1:01 ` masaru.nagai.vx
2015-04-15 5:31 ` Richard Cochran
2015-04-15 5:31 ` Richard Cochran
2015-04-02 13:56 ` Ben Hutchings
2015-04-02 13:56 ` Ben Hutchings
2015-04-13 20:34 ` Sergei Shtylyov
2015-04-13 20:34 ` Sergei Shtylyov
2015-04-13 22:13 ` Lino Sanfilippo
2015-04-13 22:13 ` Lino Sanfilippo
2015-04-13 22:31 ` Ben Hutchings
2015-04-13 22:31 ` Ben Hutchings
2015-04-13 22:53 ` Lino Sanfilippo
2015-04-13 22:53 ` Lino Sanfilippo
2015-04-13 23:08 ` Ben Hutchings
2015-04-13 23:08 ` Ben Hutchings
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