From: haojian.zhuang@gmail.com (Haojian Zhuang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] mfd: max8925: request resource region
Date: Mon, 7 May 2012 16:18:40 +0800 [thread overview]
Message-ID: <CAN1soZzj1FKhFPHOUjbARpzuA1_vB4TO0O8ThCiG49nPqYqCwg@mail.gmail.com> (raw)
In-Reply-To: <20120507075800.GL26481@n2100.arm.linux.org.uk>
On Mon, May 7, 2012 at 3:58 PM, Russell King - ARM Linux
<linux@arm.linux.org.uk> wrote:
> On Mon, May 07, 2012 at 11:10:48AM +0800, Haojian Zhuang wrote:
>> If resource region isn't requested, component devices will fail to request
>> their resources.
>>
>> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
>
> This looks wrong.
>
> This driver looks broken. ?IO regions are for PC IO stuff, not for I2C
> buses. ?There is no resource reservation system in the kernel for
> registers on I2C devices.
There's some components in PMIC devices. I used IO resources to
identify these components,
and these IO resources are register offset in PMIC. But if I choose
MEM resources, it may
conflict with real memory resources. So I choose IO resources. Do you
have any other implementation
instead?
Thanks
Haojian
next prev parent reply other threads:[~2012-05-07 8:18 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-07 3:10 [PATCH 1/2] mfd: max8925: request resource region Haojian Zhuang
2012-05-07 3:10 ` [PATCH 2/2] ARM: mmp: add io head file Haojian Zhuang
2012-05-07 9:23 ` Arnd Bergmann
2012-05-07 7:58 ` [PATCH 1/2] mfd: max8925: request resource region Russell King - ARM Linux
2012-05-07 8:18 ` Haojian Zhuang [this message]
2012-05-07 8:59 ` Russell King - ARM Linux
2012-05-07 9:01 ` Mark Brown
2012-05-07 9:08 ` Russell King - ARM Linux
2012-05-07 9:47 ` Mark Brown
2012-05-07 10:14 ` Arnd Bergmann
2012-05-07 10:23 ` Haojian Zhuang
2012-05-07 11:21 ` Arnd Bergmann
2012-05-07 11:29 ` Mark Brown
[not found] ` <201205071319.48768.arnd@arndb.de>
2012-05-07 14:02 ` Samuel Ortiz
2012-05-07 14:15 ` Mark Brown
2012-05-07 15:15 ` Arnd Bergmann
2012-05-07 15:28 ` Mark Brown
2012-05-07 10:37 ` Mark Brown
[not found] ` <201205071314.51886.arnd@arndb.de>
2012-05-07 14:06 ` Mark Brown
2012-05-07 15:09 ` Arnd Bergmann
2012-05-07 15:17 ` Mark Brown
2012-05-07 19:26 ` Arnd Bergmann
2012-05-07 19:58 ` Mark Brown
2012-05-08 8:17 ` Mark Brown
2012-05-08 14:44 ` Arnd Bergmann
2012-05-08 15:31 ` Mark Brown
2012-05-09 12:43 ` Arnd Bergmann
2012-05-09 14:13 ` Mark Brown
2012-05-09 14:19 ` Arnd Bergmann
2012-05-09 14:42 ` Mark Brown
2012-05-09 15:03 ` Arnd Bergmann
2012-05-09 15:28 ` Mark Brown
2012-05-09 16:27 ` Arnd Bergmann
2012-05-09 16:18 ` Russell King - ARM Linux
2012-05-09 16:30 ` Mark Brown
2012-05-09 16:07 ` Russell King - ARM Linux
2012-05-09 16:26 ` Arnd Bergmann
2012-05-09 16:27 ` Russell King - ARM Linux
2012-05-07 18:57 ` Russell King - ARM Linux
2012-05-07 19:27 ` Mark Brown
2012-05-07 8:12 ` Samuel Ortiz
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