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From: Lee Jones <lee.jones@linaro.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linus.walleij@stericsson.com,
	broonie@opensource.wolfsonmicro.com, grant.likely@secretlab.ca,
	linux-i2c@vger.kernel.org, ben-linux@fluff.org, cjb@laptop.org,
	linux-arm-kernel@lists.infradead.org, sameo@linux.intel.com
Subject: Re: [PATCH 06/15] mfd/ab8500: Remove confusing ab8500-i2c file and merge into ab8500-core
Date: Sat, 05 May 2012 07:30:19 +0100	[thread overview]
Message-ID: <4FA4C8FB.4090202@linaro.org> (raw)
In-Reply-To: <4FA448FA.8000404@linaro.org>

Whoops, I put that comment in the wrong place. Let me amend:

On 04/05/12 22:24, Lee Jones wrote:
> On 04/05/12 21:25, Arnd Bergmann wrote:
>> On Friday 04 May 2012, Lee Jones wrote:
>>>
>>> ab8500-i2c is used as core code to register the ab8500 device.
>>> After allocating ab8500 memory, it immediately calls into
>>> ab8500-core where the real initialisation takes place. This
>>> patch moves all core registration and memory allocation into
>>> the true ab8500-core file and removes ab8500-i2c completely.
>>>
>>> Signed-off-by: Lee Jones<lee.jones@linaro.org>
>>
>> These changes all look good, but I think I would go further here.
>> I believe we discussed this and I agreed that we could leave that
>> for later, but upon reading this code, I think now that it's getting
>> rather silly.

It's something I'm happy to do, but wasn't the point of the patch. I
don't know much about this code, as I didn't write it. I can spend more 
time on clean-ups such as these after my DT task has been completed.

<snip>

>> If you apply this patch below, then there is no reason to add any of
>> those.
 >>
>> There is room for additional simplification even, but this is the most
>> important one. Note that the ab8500 mutex was only needed to support the
>> case where write_masked is not present, and that the debug output
>> on error is pointless because the prcmu driver already writes the same
>> output. The next step would be to remove all the {get,set}_register
>> functions
>> from ab8500 and just call the prcmu directly.
>>
>> Signed-off-by: Arnd Bergmann<arnd@arndb.de>

Patch looks good. I'll test it when I have my board. If it doesn't cause 
any issues I'll apply it to the patch-set ready for pull-request.

Kind regards,
Lee

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
M: +44 77 88 633 515
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

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  reply	other threads:[~2012-05-05  6:30 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-04 18:23 [PATCH 00/15] DT enablement for Snowball Lee Jones
     [not found] ` <1336155805-18554-1-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-04 18:23   ` [PATCH 01/15] i2c/busses: Add Device Tree support to the Nomadik I2C driver Lee Jones
     [not found]     ` <1336155805-18554-2-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-04 20:02       ` Arnd Bergmann
     [not found]         ` <201205042002.20943.arnd-r2nGTMty4D4@public.gmane.org>
2012-05-04 21:27           ` Lee Jones
2012-05-05  6:17           ` Lee Jones
     [not found]             ` <4FA4C5EA.7030006-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:42               ` Linus Walleij
2012-05-04 18:23   ` [PATCH 02/15] ARM: ux500: Remove unused i2c platform_data initialisation code Lee Jones
     [not found]     ` <1336155805-18554-3-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:46       ` Linus Walleij
     [not found]         ` <CACRpkdZ70FasMuTTgBe68xaePB-4UNZ0W44BCxDve7fqXYT+vg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-09 10:22           ` Lee Jones
     [not found]             ` <4FAA4576.1020106-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-10 11:24               ` Linus Walleij
2012-05-04 18:23   ` [PATCH 03/15] ARM: ux500: Provide auxdata to be used as name base clock search for nmk-i2c Lee Jones
     [not found]     ` <1336155805-18554-4-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:48       ` Linus Walleij
2012-05-04 18:23   ` [PATCH 04/15] ARM: ux500: CONFIG: Compile in support for leds-gpio Lee Jones
     [not found]     ` <1336155805-18554-5-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:49       ` Linus Walleij
     [not found]         ` <CACRpkdbv780oUaDL1-m4kj5iRr5=1U6QhE975Z4gNADoTNk8YA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-09 10:23           ` Lee Jones
     [not found]             ` <4FAA45B5.2030000-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-10 11:25               ` Linus Walleij
2012-05-04 18:23   ` [PATCH 05/15] ARM: ux500: Enable the user LED on Snowball via Device Tree Lee Jones
     [not found]     ` <1336155805-18554-6-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:50       ` Linus Walleij
2012-05-04 18:23   ` [PATCH 06/15] mfd/ab8500: Remove confusing ab8500-i2c file and merge into ab8500-core Lee Jones
     [not found]     ` <1336155805-18554-7-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-04 20:25       ` Arnd Bergmann
     [not found]         ` <201205042025.15421.arnd-r2nGTMty4D4@public.gmane.org>
2012-05-04 21:24           ` Lee Jones
2012-05-05  6:30             ` Lee Jones [this message]
2012-05-07 16:54       ` Mark Brown
2012-05-09 12:20       ` Linus Walleij
     [not found]         ` <CACRpkdanG7KgYuZw29KwZe7wRp-AVZJ9n_hwBEZzf5gDAbGneg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-14  8:41           ` Lee Jones
     [not found]             ` <4FB0C52E.9030109-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-14  9:11               ` Linus Walleij
2012-05-04 18:23   ` [PATCH 07/15] drivers/power: Carry out platform_data error checking on ab8500 devices Lee Jones
     [not found]     ` <1336155805-18554-8-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:51       ` Linus Walleij
     [not found]         ` <CACRpkdYkqj6Zr=05Byk+tPc1ohjfDoZKCkTmu9zcZpgKxV8wpg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-09 10:24           ` Lee Jones
2012-05-04 18:23   ` [PATCH 08/15] ARM: ux500: PRCMU related configuration and layout corrections for Device Tree Lee Jones
     [not found]     ` <1336155805-18554-9-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:53       ` Linus Walleij
     [not found]         ` <CACRpkdanU4eWhRobxzBV1mcU5T6QLCrWfBAczRFtn6gguhRNng-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-09 10:27           ` Lee Jones
     [not found]             ` <4FAA469B.2030200-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-10 11:27               ` Linus Walleij
2012-05-04 18:23   ` [PATCH 09/15] drivers/mfd: Enable Device Tree support for the db8500-prcmu Lee Jones
     [not found]     ` <1336155805-18554-10-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:56       ` Linus Walleij
2012-05-09 14:30       ` Samuel Ortiz
2012-05-04 18:23   ` [PATCH 10/15] drivers/mfd: db8500-prcmu: Add support for regulator supply for nmk-i2c.4 Lee Jones
     [not found]     ` <1336155805-18554-11-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  8:56       ` Linus Walleij
2012-05-09 14:31       ` Samuel Ortiz
2012-05-04 18:23   ` [PATCH 11/15] drivers/mfd: Enable Device Tree for ab8500-core driver Lee Jones
     [not found]     ` <1336155805-18554-12-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  9:02       ` Linus Walleij
     [not found]         ` <CACRpkdaju5y6pduWrkH97LujzqJu5hAaGozyHY3Rsvvn7ZyKhA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-09 10:28           ` Lee Jones
     [not found]             ` <4FAA46E1.4050708-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09 11:18               ` Mark Brown
2012-05-09 11:56           ` Arnd Bergmann
2012-05-10 10:26           ` Russell King - ARM Linux
     [not found]             ` <20120510102657.GD3190-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2012-05-10 12:27               ` Linus Walleij
2012-05-11 10:12       ` Samuel Ortiz
2012-05-14  8:45         ` Lee Jones
2012-05-04 18:23   ` [PATCH 12/15] drivers/regulator: ab8500: Split up probe() into manageable pieces Lee Jones
     [not found]     ` <1336155805-18554-13-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-07 16:58       ` Mark Brown
     [not found]         ` <CAF2Aj3h7pgh=Kbt+M5Xd_RDRbJN7K+WbaH1+8nM2Eakb1QNpsg@mail.gmail.com>
     [not found]           ` <CAF2Aj3h7pgh=Kbt+M5Xd_RDRbJN7K+WbaH1+8nM2Eakb1QNpsg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-07 18:44             ` Mark Brown
     [not found]               ` <20120507184453.GQ17002-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-05-08 11:08                 ` Lee Jones
2012-05-04 18:23   ` [PATCH 13/15] ARM: ux500: Add support for ab8500 regulators into the Device Tree Lee Jones
     [not found]     ` <1336155805-18554-14-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  9:04       ` Linus Walleij
2012-05-04 18:23   ` [PATCH 14/15] drivers/regulators: Enable the ab8500 for " Lee Jones
     [not found]     ` <1336155805-18554-15-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-07 17:08       ` Mark Brown
     [not found]         ` <20120507170832.GO17002-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-05-08 12:04           ` Lee Jones
     [not found]             ` <4FA90BE1.3050304-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-08 12:19               ` Mark Brown
     [not found]                 ` <20120508121940.GL15893-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-05-08 12:38                   ` Lee Jones
     [not found]                     ` <4FA913BA.30908-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-08 13:34                       ` Mark Brown
     [not found]                         ` <20120508133411.GP15893-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-05-08 14:54                           ` Lee Jones
     [not found]                             ` <4FA93391.8040905-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-08 14:57                               ` Mark Brown
     [not found]                                 ` <20120508145758.GV15893-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-05-08 17:00                                   ` Lee Jones
2012-05-08 13:48                       ` Arnd Bergmann
     [not found]                         ` <201205081348.14269.arnd-r2nGTMty4D4@public.gmane.org>
2012-05-08 14:29                           ` Mark Brown
     [not found]                             ` <20120508142926.GT15893-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-05-08 14:36                               ` Arnd Bergmann
     [not found]                                 ` <201205081436.46471.arnd-r2nGTMty4D4@public.gmane.org>
2012-05-08 14:44                                   ` Mark Brown
2012-05-14 15:49           ` Lee Jones
     [not found]             ` <4FB12981.8050603-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-14 16:18               ` Arnd Bergmann
2012-05-14 17:01               ` Mark Brown
2012-05-14 15:57           ` Lee Jones
     [not found]             ` <4FB12B73.50302-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-14 16:39               ` Mark Brown
2012-05-04 18:23   ` [PATCH 15/15] ARM: ux500: Disable platform setup of the ab8500 when DT is enabled Lee Jones
     [not found]     ` <1336155805-18554-16-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2012-05-09  9:05       ` Linus Walleij
2012-05-04 20:26   ` [PATCH 00/15] DT enablement for Snowball Arnd Bergmann

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