From: Rongrong Zou <zourongrong@huawei.com>
To: Arnd Bergmann <arnd@arndb.de>, Rongrong Zou <zourongrong@gmail.com>
Cc: <minyard@acm.org>, <gregkh@linuxfoundation.org>,
<catalin.marinas@arm.com>, <will.deacon@arm.com>,
<linuxarm@huawei.com>, <linux-kernel@vger.kernel.org>,
<benh@kernel.crashing.org>, <lijianhua@huawei.com>
Subject: Re: [PATCH v1 2/3] ARM64 LPC: LPC driver implementation
Date: Tue, 29 Dec 2015 22:03:14 +0800 [thread overview]
Message-ID: <568292A2.9040708@huawei.com> (raw)
In-Reply-To: <1557466.ZWCBjbTVg8@wuerfel>
在 2015/12/29 21:51, Arnd Bergmann 写道:
> On Tuesday 29 December 2015 21:33:51 Rongrong Zou wrote:
>> We only implement io cycles here, we hook the lpc_io_write_byte
>> and lpc_io_read_byte to inb/outb. So the drivers(ipmi/uart) which access
>> the legacy ISA I/O port need no modification.
>>
>> The low pin count specification is at
>> http://www.intel.com/design/chipsets/industry/lpc.htm
>>
>> Signed-off-by: Rongrong Zou <zourongrong@gmail.com>
>
> I'm slightly confused here: I thought this driver was hisilicon specific.
> Is the MMIO register layout that is used in this hardware actually standardized
> in a way that the driver also works for all other implementations?
The register defined is not standardized. other vendors may define their own
registers.
>
>> +
>> +static struct lpc_dev *lpc_dev;
>> +
>> +int lpc_master_write(unsigned int slv_access_mode, unsigned int cycle_type,
>> + unsigned int addr, unsigned char *buf, unsigned int len)
>> +{
>
> Please make all function definitions 'static' so we don't accidentally get
> other users that bypass the proper interface.
>
> Arnd
> _______________________________________________
> linuxarm mailing list
> linuxarm@huawei.com
> http://rnd-openeuler.huawei.com/mailman/listinfo/linuxarm
>
>
next prev parent reply other threads:[~2015-12-29 14:06 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-29 13:33 [PATCH v1 0/3] ARM64 LPC: legacy ISA I/O support Rongrong Zou
2015-12-29 13:33 ` [PATCH v1 1/3] ARM64 LPC: indirect ISA PORT IO introduced Rongrong Zou
2015-12-29 13:47 ` Arnd Bergmann
2015-12-29 14:26 ` Rongrong Zou
2015-12-29 14:35 ` Arnd Bergmann
2015-12-30 1:24 ` Rongrong Zou
2015-12-30 8:59 ` Arnd Bergmann
2015-12-30 9:28 ` Rongrong Zou
2015-12-30 9:42 ` Arnd Bergmann
2016-01-04 10:11 ` Will Deacon
2016-01-04 10:27 ` Rongrong Zou
2015-12-29 13:33 ` [PATCH v1 2/3] ARM64 LPC: LPC driver implementation Rongrong Zou
2015-12-29 13:51 ` Arnd Bergmann
2015-12-29 14:03 ` Rongrong Zou [this message]
2015-12-29 14:11 ` Arnd Bergmann
2015-12-29 13:33 ` [PATCH v1 3/3] ARM64 LPC: update binding doc Rongrong Zou
2015-12-29 13:52 ` Arnd Bergmann
2015-12-30 9:06 ` Arnd Bergmann
2015-12-31 14:12 ` Rongrong Zou
2015-12-31 14:40 ` Arnd Bergmann
[not found] ` <CABTftiT1+AmrNjiAie-T6on-oWA4Zz73+Tj2pQrixMT3o475uw@mail.gmail.com>
2016-01-03 12:24 ` Rongrong Zou
2016-01-04 11:13 ` Arnd Bergmann
2016-01-04 16:04 ` Rongrong Zou
2016-01-04 16:34 ` Arnd Bergmann
2016-01-05 11:59 ` Rongrong Zou
2016-01-05 12:19 ` Arnd Bergmann
2016-01-06 13:36 ` Rongrong Zou
2016-01-07 3:37 ` Rongrong Zou
2016-01-10 9:29 ` Rolland Chau
2016-01-10 13:38 ` Rongrong Zou
2016-01-11 16:14 ` liviu.dudau
2016-01-12 2:39 ` Rongrong Zou
2016-01-12 9:07 ` liviu.dudau
2016-01-12 9:25 ` Rongrong Zou
2016-01-12 10:14 ` liviu.dudau
2016-01-12 11:05 ` Rongrong Zou
2016-01-12 11:27 ` liviu.dudau
2016-01-12 11:56 ` Rongrong Zou
2016-01-12 15:13 ` liviu.dudau
2016-01-12 22:52 ` Arnd Bergmann
2016-01-13 5:53 ` Benjamin Herrenschmidt
2016-01-13 6:34 ` Rongrong Zou
2016-01-13 9:26 ` Arnd Bergmann
2016-01-13 10:10 ` liviu.dudau
2016-01-13 10:18 ` Arnd Bergmann
2016-01-13 10:32 ` liviu.dudau
2016-01-12 22:54 ` Arnd Bergmann
2016-01-13 10:09 ` liviu.dudau
2016-01-13 10:29 ` Arnd Bergmann
2016-01-13 11:06 ` Rongrong Zou
2016-01-13 11:25 ` liviu.dudau
2016-01-13 23:29 ` Benjamin Herrenschmidt
2016-01-14 2:03 ` Rongrong Zou
2016-01-14 3:39 ` Benjamin Herrenschmidt
2016-01-14 4:42 ` Rongrong Zou
2016-01-14 11:25 ` Benjamin Herrenschmidt
2016-01-14 13:11 ` Rongrong Zou
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