From: "Madhusudhan Chikkature" <madhu.cr@ti.com>
To: me@felipebalbi.com, Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Felipe Balbi <felipe.balbi@nokia.com>,
tony@atomide.com, linux-omap@vger.kernel.org
Subject: Re: [PATCH]OMAP HDQ driver ioremap changes
Date: Tue, 23 Sep 2008 10:22:41 +0530 [thread overview]
Message-ID: <00da01c91d38$38421a00$LocalHost@wipultra1303> (raw)
In-Reply-To: 20080923022419.GE10156@frodo
----- Original Message -----
From: "Felipe Balbi" <me@felipebalbi.com>
To: "Evgeniy Polyakov" <johnpol@2ka.mipt.ru>
Cc: "Felipe Balbi" <felipe.balbi@nokia.com>; "ext Madhusudhan Chikkature" <madhu.cr@ti.com>; <tony@atomide.com>; <linux-omap@vger.kernel.org>
Sent: Tuesday, September 23, 2008 7:54 AM
Subject: Re: [PATCH]OMAP HDQ driver ioremap changes
> On Tue, Sep 23, 2008 at 12:14:00AM +0400, Evgeniy Polyakov wrote:
>> On Mon, Sep 22, 2008 at 05:37:41PM +0300, Felipe Balbi (felipe.balbi@nokia.com) wrote:
>> > +/*
>> > + * Used to control the call to omap_hdq_get and omap_hdq_put.
>> > + * HDQ Protocol: Write the CMD|REG_address first, followed by
>> > + * the data wrire or read.
>> > + */
>> > +static int init_trans;
>>
>> This variable is not protected against simultaneous master's access
>> afaics, isn't it possible to have multiple w1 masters on given board?
>
> Don't know much about 1-wire. Someone else should answer that. But I
> suppose we should protect it, yeah.
We can not test that scenario on our board. But I guess we should protect it as 1-Wire protocol supports multiple access.
Regards,
Madhu
>
> --
> balbi
>
>
next prev parent reply other threads:[~2008-09-23 4:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-22 10:15 [PATCH]OMAP HDQ driver ioremap changes Madhusudhan Chikkature
2008-09-22 13:06 ` Evgeniy Polyakov
2008-09-22 13:13 ` Madhusudhan Chikkature
2008-09-22 13:27 ` Felipe Balbi
2008-09-22 13:31 ` Madhusudhan Chikkature
2008-09-22 13:38 ` Felipe Balbi
2008-09-22 14:37 ` Felipe Balbi
2008-09-22 20:14 ` Evgeniy Polyakov
2008-09-23 2:24 ` Felipe Balbi
2008-09-23 4:52 ` Madhusudhan Chikkature [this message]
2008-09-23 6:52 ` Evgeniy Polyakov
2008-09-23 4:37 ` Madhusudhan Chikkature
2008-09-23 10:57 ` Felipe Balbi
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