linux-kernel - Re: [PATCH] drivers/block/xsysace - replace in(out)_8/in(out)_be16/in(out)

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Message-ID: <CAHTX3dJxevq3v-o1E6SEM-hFQ4aYi-hkgefX5+-hOmtqy6JgWg@mail.gmail.com>
Date:	Mon, 11 Feb 2013 16:36:05 +0100
From:	Michal Simek <monstr@...str.eu>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Vineet Gupta <Vineet.Gupta1@...opsys.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	dahinds@...rs.sourceforge.net
Subject: Re: [PATCH] drivers/block/xsysace - replace in(out)_8/in(out)_be16/in(out)_le16
 with generic iowrite(read)8/16(be)

2013/2/11 Arnd Bergmann <arnd@...db.de>:
> On Monday 11 February 2013, Michal Simek wrote:
>>
>> 2013/2/8 Arnd Bergmann <arnd@...db.de>:
>> > On Thursday 07 February 2013, Michal Simek wrote:
>> >> Subject: "asm-generic: io: Fix ioread16/32be and iowrite16/32be"
>> >
>> > Ok, thanks. If you don't mind, I think this can just go with the other patches
>> > for xsysace that come out of this discussion.
>>
>> I want to move microblaze to use this asm-generic/io.h that's why I
>> prefer to send
>> this with microblaze patch directly to Linus. For me this make more sense that
>> with sending block device driver changes.
>>
>> What do you think?
>
> Sure, please do it that way. My policy for asm-generic patches is that they
> I prefer to have them go through whatever tree needs them, I was just confused
> about which one that would be in this case.
>

I have just found that it won't be so easy as I thought because I have found
that microblaze wrong implementation was done because of others device drivers.
It means that I have to fix all device drivers to support big and
little endian accessors
first before I can switch microblaze to asm-generic/io.h. :-(

BTW: If you want to take this patch though your tree then ok, or it
can go through my
microblaze tree. Both ways should just work.

I will send the patch for uarlite when I finish my testing on
microblaze, ppc and arm.

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform
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