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From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH RFC v2 13/16] ARM: tegra: split tegra_pmc_init() in two
Date: Wed, 28 Aug 2013 00:09:24 +0200	[thread overview]
Message-ID: <521D2394.7030005@gmail.com> (raw)
In-Reply-To: <521D214C.80809@wwwdotorg.org>

On 08/27/13 23:59, Stephen Warren wrote:
> On 08/27/2013 03:28 PM, Sebastian Hesselbarth wrote:
>> From: Stephen Warren <swarren@nvidia.com>
>>
>> Tegra's board file currently initializes clocks much earlier than those
>> for most other ARM SoCs. The reason is:
>>
>> * The PMC HW block is involved in the path of some interrupts (i.e. it
>> inverts, or not, the IRQ input pin dedicated to the PMIC).
>>
>> * So, that part of the PMC must be initialized early so that the IRQ
>> polarity is correct.
>>
>> * The PMC initialization is currently monolithic, and the PMC has some
>> clock inputs, so the init routine ends up calling of_clk_get_by_name(),
>> and hence clocks must be set up early too.
>>
>> In order to defer clock initialization to the more typical location,
>> split out the portions of tegra_pmc_init() that are truly IRQ-related
>> into a separate tegra_pmc_init_irq(), which can be called from the
>> machine descriptor's .init_irq() function, and defer the rest until
>> the machine descriptor's .init_machine() function. With arch/arm calling
>> of_clk_init(NULL) from time_init() this also allows the removal of
>> .init_time() hook.
>>
>> Signed-off-by: Stephen Warren <swarren@nvidia.com>
>> ---
>> Changelog:
>> v1->v2:
>> - took Stephen Warren's patch provided to separate Tegra's pmc_init
>> - sqashed in .init_time removal and reworded patch text
>
> I think it'd be better to keep the 2 patches separate so the two logical
> changes are in different patches. I suppose it isn't a huge deal though.
>
> Either way, on this patch, your S-o-b line is missing above.

Stephen,

I was already wondering here, if I should separate the patches into 
preparation and actual removal. I put that question into the cover
letter and removed it from this patch text ;)

As you suggest to use preparation/removal, I will take that approach
for the final patch set. Will take you original unmodified patch then.

Sebastian

  reply	other threads:[~2013-08-27 22:09 UTC|newest]

Thread overview: 101+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-20  2:04 [RFC 00/17] ARM: provide common arch init for DT clocks Sebastian Hesselbarth
2013-08-20  2:04 ` [RFC 10/17] ARM: nspire: remove custom .init_time hook Sebastian Hesselbarth
     [not found] ` <1376964271-22715-7-git-send-email-sebastian.hesselbarth@gmail.com>
2013-08-20  7:26   ` [RFC 06/17] ARM: imx: " Sascha Hauer
2013-08-20  8:48     ` Sebastian Hesselbarth
2013-08-20  9:10       ` Sascha Hauer
2013-08-20  9:20         ` Sebastian Hesselbarth
2013-08-20 10:20           ` Russell King - ARM Linux
2013-08-20 10:37             ` Sebastian Hesselbarth
2013-08-20 10:42               ` Russell King - ARM Linux
2013-08-20 10:46                 ` Sebastian Hesselbarth
     [not found] ` <1376964271-22715-9-git-send-email-sebastian.hesselbarth@gmail.com>
2013-08-20 12:50   ` [RFC 08/17] ARM: mvebu: " Ezequiel Garcia
2013-08-20 13:12     ` Sebastian Hesselbarth
2013-08-20 14:01       ` Ezequiel Garcia
2013-08-23 10:06   ` Gregory CLEMENT
2013-08-23 10:32     ` Sebastian Hesselbarth
2013-08-23 11:39       ` Gregory CLEMENT
2013-08-23 12:13         ` Sebastian Hesselbarth
2013-08-23 14:23           ` Gregory CLEMENT
2013-08-23 14:34             ` Gregory CLEMENT
     [not found] ` <1376964271-22715-3-git-send-email-sebastian.hesselbarth@gmail.com>
2013-08-20 15:46   ` [RFC 02/17] ARM: call clk_of_init from time_init Stephen Warren
2013-08-20 19:47     ` Sebastian Hesselbarth
2013-08-20 19:52       ` Stephen Warren
2013-08-20 20:19         ` Sebastian Hesselbarth
2013-08-21 18:54           ` Arnd Bergmann
2013-08-22  7:25             ` Mike Turquette
2013-08-22 17:28               ` Arnd Bergmann
2013-08-20 20:44     ` Arnd Bergmann
2013-08-20 20:57       ` Stephen Warren
2013-08-21 18:51         ` Arnd Bergmann
     [not found] ` <1376964271-22715-6-git-send-email-sebastian.hesselbarth@gmail.com>
2013-08-20 19:12   ` [RFC 05/17] ARM: highbank: remove custom .init_time hook Rob Herring
2013-08-20 20:01     ` Sebastian Hesselbarth
     [not found] ` <1376964271-22715-18-git-send-email-sebastian.hesselbarth@gmail.com>
2013-08-23  0:26   ` [RFC 17/17] clk: zynq: remove call to of_clk_init Sören Brinkmann
2013-08-23  0:59     ` Sören Brinkmann
2013-08-23  7:32       ` Steffen Trumtrar
2013-08-23 16:00         ` Sören Brinkmann
2013-08-23 23:38           ` Steffen Trumtrar
2013-08-26 11:15         ` Michal Simek
2013-08-26 12:07           ` Steffen Trumtrar
2013-08-26 12:53             ` Sebastian Hesselbarth
2013-08-26 15:14               ` Michal Simek
2013-08-26 15:31                 ` Steffen Trumtrar
2013-08-26 15:16               ` Sören Brinkmann
2013-08-26 15:33                 ` Steffen Trumtrar
2013-08-23  9:30       ` Sebastian Hesselbarth
2013-08-23 17:19         ` Sören Brinkmann
2013-08-23 17:44           ` Sebastian Hesselbarth
2013-08-23 23:22             ` Steffen Trumtrar
2013-08-26 15:20             ` Sören Brinkmann
2013-08-27 21:27 ` [PATCH RFC v2 00/16] ARM: provide common arch init for DT clocks Sebastian Hesselbarth
2013-08-27 21:27 ` [PATCH RFC v2 01/16] ARM: call clk_of_init from time_init Sebastian Hesselbarth
2013-08-27 22:19   ` Sören Brinkmann
2013-08-27 22:58     ` Sebastian Hesselbarth
2013-08-27 23:20       ` Sören Brinkmann
2013-08-29 13:45       ` Arnd Bergmann
2013-09-04 19:32         ` Sebastian Hesselbarth
2013-09-04 20:41           ` Sören Brinkmann
2013-09-04 20:52             ` Sebastian Hesselbarth
2013-09-04 20:59               ` Sören Brinkmann
2013-09-05  9:34                 ` Arnd Bergmann
2013-08-27 21:27 ` [PATCH RFC v2 02/16] ARM: dove: remove custom .init_time hook Sebastian Hesselbarth
2013-08-27 21:27 ` [PATCH RFC v2 03/16] ARM: exynos: " Sebastian Hesselbarth
2013-08-27 21:27 ` [PATCH RFC v2 04/16] ARM: highbank: " Sebastian Hesselbarth
2013-08-27 23:13   ` Mike Turquette
2013-08-27 21:27 ` [PATCH RFC v2 05/16] ARM: imx: " Sebastian Hesselbarth
2013-08-29 11:00   ` Shawn Guo
2013-08-27 21:28 ` [PATCH RFC v2 06/16] ARM: kirkwood: " Sebastian Hesselbarth
2013-08-27 21:28 ` [PATCH RFC v2 07/16] ARM: mvebu: " Sebastian Hesselbarth
2013-08-28  6:28   ` Gregory CLEMENT
2013-08-27 21:28 ` [PATCH RFC v2 08/16] ARM: mxs: " Sebastian Hesselbarth
2013-08-27 23:16   ` Mike Turquette
2013-08-29 11:08   ` Shawn Guo
2013-08-29 11:32     ` Sebastian Hesselbarth
2013-08-29 12:58       ` Shawn Guo
2013-08-27 21:28 ` [PATCH RFC v2 09/16] ARM: nspire: " Sebastian Hesselbarth
2013-08-27 21:28 ` [PATCH RFC v2 10/16] ARM: rockchip: " Sebastian Hesselbarth
2013-08-27 21:28 ` [PATCH RFC v2 11/16] ARM: socfpga: remove call to of_clk_init Sebastian Hesselbarth
2013-08-29 15:38   ` Dinh Nguyen
2013-08-29 17:23     ` Arnd Bergmann
2013-08-27 21:28 ` [PATCH RFC v2 12/16] ARM: sti: remove custom .init_time hook Sebastian Hesselbarth
2013-08-29 16:29   ` [STLinux Kernel] " Srinivas KANDAGATLA
2013-08-27 21:28 ` [PATCH RFC v2 13/16] ARM: tegra: split tegra_pmc_init() in two Sebastian Hesselbarth
2013-08-27 21:59   ` Stephen Warren
2013-08-27 22:09     ` Sebastian Hesselbarth [this message]
2013-09-11 19:56   ` Stephen Warren
2013-09-12  6:21     ` Sebastian Hesselbarth
2013-09-12 16:32       ` Stephen Warren
2013-08-27 21:28 ` [PATCH RFC v2 14/16] ARM: vexpress: remove custom .init_time hook Sebastian Hesselbarth
2013-08-29 13:35   ` Arnd Bergmann
2013-08-29 18:16     ` Sebastian Hesselbarth
2013-08-30 10:02       ` Jon Medhurst (Tixy)
2013-08-30 11:39         ` Russell King - ARM Linux
2013-08-30 13:12         ` Pawel Moll
2013-08-27 21:28 ` [PATCH RFC v2 15/16] clk: vt8500: remove call to of_clk_init Sebastian Hesselbarth
2013-08-27 23:16   ` Mike Turquette
2013-08-29 13:42   ` Arnd Bergmann
2013-08-27 21:28 ` [PATCH RFC v2 16/16] ARM: zynq: Don't call of_clk_init() Sebastian Hesselbarth
2013-08-29 13:37   ` Arnd Bergmann
2013-08-29 14:21     ` Michal Simek
2013-08-29 17:20       ` Arnd Bergmann
2013-08-29 18:14         ` Michal Simek
2013-08-29 18:20     ` Sebastian Hesselbarth

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