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From: lee.jones@linaro.org (Lee Jones)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 08/22] regulator: Change ab8500 match names to reflect Device Tree
Date: Thu, 31 May 2012 08:42:12 +0800	[thread overview]
Message-ID: <4FC6BE64.6030201@linaro.org> (raw)
In-Reply-To: <20120530164152.GP9947@opensource.wolfsonmicro.com>

On 31/05/12 00:41, Mark Brown wrote:
> On Wed, May 30, 2012 at 11:22:33PM +0800, Lee Jones wrote:
>> On 30/05/12 23:11, Mark Brown wrote:
>
>>>> 	vin-supply =<&db8500_vape_reg>;
>>>> 	vmmc-supply =<&ab8500_ldo_aux2_reg>;
>
>>> Oh, oops.  This is going to be fun when someone puts down two of the
>>> same PMIC on a system...
>
>> What does that mean sorry?
>
> Lots of regulators are using this mechanism for identifying child nodes.
> If the node name is also used as a handle by other things to reference
> the regulator then if you have two PMICs of the same type DTC isn't
> going to be able to figure out which node you mean.

I haven't looked at the code yet, so I don't know the answer to this 
question, but; aren't they protected by the compatible string? If not, I 
think they should be. We shouldn't be parsing other platform's Device Trees.

-- 
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

WARNING: multiple messages have this Message-ID (diff)
From: Lee Jones <lee.jones@linaro.org>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Chris Ball <cjb@laptop.org>,
	Linus Walleij <linus.walleij@stericsson.com>,
	Bengt Jonsson <bengt.g.jonsson@stericsson.com>,
	Mattias WALLIN <mattias.wallin@stericsson.com>,
	linux-arm-kernel@lists.infradead.org, sameo@linux.intel.com,
	grant.likely@secretlab.ca, linux-kernel@vger.kernel.org,
	arnd@arndb.de, Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [PATCH 08/22] regulator: Change ab8500 match names to reflect Device Tree
Date: Thu, 31 May 2012 08:42:12 +0800	[thread overview]
Message-ID: <4FC6BE64.6030201@linaro.org> (raw)
In-Reply-To: <20120530164152.GP9947@opensource.wolfsonmicro.com>

On 31/05/12 00:41, Mark Brown wrote:
> On Wed, May 30, 2012 at 11:22:33PM +0800, Lee Jones wrote:
>> On 30/05/12 23:11, Mark Brown wrote:
>
>>>> 	vin-supply =<&db8500_vape_reg>;
>>>> 	vmmc-supply =<&ab8500_ldo_aux2_reg>;
>
>>> Oh, oops.  This is going to be fun when someone puts down two of the
>>> same PMIC on a system...
>
>> What does that mean sorry?
>
> Lots of regulators are using this mechanism for identifying child nodes.
> If the node name is also used as a handle by other things to reference
> the regulator then if you have two PMICs of the same type DTC isn't
> going to be able to figure out which node you mean.

I haven't looked at the code yet, so I don't know the answer to this 
question, but; aren't they protected by the compatible string? If not, I 
think they should be. We shouldn't be parsing other platform's Device Trees.

-- 
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

  reply	other threads:[~2012-05-31  0:42 UTC|newest]

Thread overview: 122+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-30  4:47 [PATCH 01/22] Fixes and clean-ups for Device Tree on Snowball Lee Jones
2012-05-30  4:47 ` [PATCH 01/22] ARM: ux500: New DT:ed snowball_platform_devs for one-by-one device enablement Lee Jones
2012-05-30  4:47 ` [PATCH 02/22] ARM: ux500: New DT:ed u8500_init_devices " Lee Jones
2012-05-30  4:47 ` [PATCH 03/22] ARM: ux500: Disable SMSC911x platform code registration when DT is enabled Lee Jones
2012-05-30  4:47 ` [PATCH 04/22] ARM: ux500: Remove DB8500 PRCMU platform " Lee Jones
2012-05-30  6:48   ` Linus Walleij
2012-05-30  4:47 ` [PATCH 05/22] ARM: ux500: PRCMU related configuration and layout corrections for Device Tree Lee Jones
2012-05-30  4:47 ` [PATCH 06/22] ARM: ux500: Re-enable SMSC911x platform code registration during non-DT boots Lee Jones
2012-05-30  4:47 ` [PATCH 07/22] ARM: ux500: Use correct format for dynamic IRQ assignment Lee Jones
2012-05-30  4:47 ` [PATCH 08/22] regulator: Change ab8500 match names to reflect Device Tree Lee Jones
2012-05-30  4:47   ` Lee Jones
2012-05-30  6:58   ` Linus Walleij
2012-05-30  6:58     ` Linus Walleij
2012-05-30 10:03     ` Mark Brown
2012-05-30 10:03       ` Mark Brown
2012-05-30 11:40       ` Lee Jones
2012-05-30 12:15         ` Mark Brown
2012-05-30 12:15           ` Mark Brown
2012-05-30 15:01           ` Lee Jones
2012-05-30 15:01             ` Lee Jones
2012-05-30 15:11             ` Mark Brown
2012-05-30 15:11               ` Mark Brown
2012-05-30 15:22               ` Lee Jones
2012-05-30 15:22                 ` Lee Jones
2012-05-30 16:41                 ` Mark Brown
2012-05-30 16:41                   ` Mark Brown
2012-05-31  0:42                   ` Lee Jones [this message]
2012-05-31  0:42                     ` Lee Jones
2012-06-01  4:36                   ` Lee Jones
2012-06-01  4:36                     ` Lee Jones
2012-06-01  8:48                     ` Mark Brown
2012-06-01  8:48                       ` Mark Brown
2012-06-05 10:31                       ` Lee Jones
2012-06-05 10:31                         ` Lee Jones
2012-06-05 10:38                         ` Mark Brown
2012-06-05 10:38                           ` Mark Brown
2012-06-11 10:27                           ` Lee Jones
2012-06-11 10:27                             ` Lee Jones
2012-06-11 10:36                             ` Mark Brown
2012-06-11 10:36                               ` Mark Brown
2012-06-11 11:28                               ` Lee Jones
2012-06-11 11:28                                 ` Lee Jones
2012-06-11 11:42                                 ` Mark Brown
2012-06-11 11:42                                   ` Mark Brown
2012-05-31  1:40     ` Linus Walleij
2012-05-31  1:40       ` Linus Walleij
2012-06-01 14:32   ` Mark Brown
2012-06-01 14:32     ` Mark Brown
2012-05-30  4:47 ` [PATCH 09/22] regulator: Change db8500-prcmu " Lee Jones
2012-05-30  4:47   ` Lee Jones
2012-05-30  7:00   ` Linus Walleij
2012-05-30  7:00     ` Linus Walleij
2012-06-05 10:24   ` Lee Jones
2012-06-05 10:24     ` Lee Jones
2012-06-05 10:29     ` Mark Brown
2012-06-05 10:29       ` Mark Brown
2012-06-05 10:34       ` Lee Jones
2012-06-05 10:34         ` Lee Jones
2012-06-05 10:42         ` Mark Brown
2012-06-05 10:42           ` Mark Brown
2012-06-06  8:17           ` Lee Jones
2012-06-11 11:21           ` Lee Jones
2012-06-11 11:21             ` Lee Jones
2012-06-11 12:08             ` Mark Brown
2012-06-11 12:08               ` Mark Brown
2012-06-11 13:34               ` Lee Jones
2012-06-11 13:34                 ` Lee Jones
2012-06-11 14:07                 ` Lee Jones
2012-06-11 14:07                   ` Lee Jones
2012-06-11 14:27                   ` Mark Brown
2012-06-11 14:27                     ` Mark Brown
2012-06-11 14:50                     ` Lee Jones
2012-06-11 14:50                       ` Lee Jones
2012-06-11 15:15                       ` Mark Brown
2012-06-11 15:15                         ` Mark Brown
2012-06-11 15:18                         ` Lee Jones
2012-06-11 15:18                           ` Lee Jones
2012-06-11 15:39                           ` Mark Brown
2012-06-11 15:39                             ` Mark Brown
2012-06-11 15:59                             ` Lee Jones
2012-06-11 15:59                               ` Lee Jones
2012-06-11 16:09                               ` Mark Brown
2012-06-11 16:09                                 ` Mark Brown
2012-05-30  4:47 ` [PATCH 10/22] ARM: ux500: Disable platform setup of the ab8500 when DT is enabled Lee Jones
2012-05-30  4:47 ` [PATCH 11/22] ARM: ux500: Only initialise STE's UIBs on boards which support them Lee Jones
2012-05-30  4:47 ` [PATCH 12/22] ARM: ux500: Apply db8500-prcmu regulator information to db8500 Device Tree Lee Jones
2012-05-30  4:47 ` [PATCH 13/22] ARM: ux500: Allow PRCMU regulator to be probed during a DT enabled boot Lee Jones
2012-05-30  4:47 ` [PATCH 14/22] ARM: ux500: Provide regulator support for SMSC911x via Device Tree Lee Jones
2012-05-30  7:05   ` Linus Walleij
2012-05-30  4:47 ` [PATCH 15/22] ARM: ux500: Add support for ab8500 regulators into the " Lee Jones
2012-05-30  4:47 ` [PATCH 16/22] mfd: ab8500-gpadc: Enable IRQF_ONESHOT when requesting a threaded IRQ Lee Jones
2012-05-30  4:47   ` Lee Jones
2012-05-30  7:10   ` Linus Walleij
2012-05-30  7:10     ` Linus Walleij
2012-06-29 13:21   ` Samuel Ortiz
2012-06-29 13:21     ` Samuel Ortiz
2012-05-30  4:47 ` [PATCH 17/22] rtc: ab8500-rtc: " Lee Jones
2012-05-30  7:11   ` [rtc-linux] " Linus Walleij
2012-05-30  4:47 ` [PATCH 18/22] mfd: Remove redundant Kconfig entry Lee Jones
2012-05-30  4:47   ` Lee Jones
2012-05-30  7:15   ` Linus Walleij
2012-05-30  7:15     ` Linus Walleij
2012-05-30  7:37     ` Lee Jones
2012-05-30  7:37       ` Lee Jones
2012-05-30  7:43       ` Linus Walleij
2012-05-30  7:43         ` Linus Walleij
2012-06-29 13:24   ` Samuel Ortiz
2012-06-29 13:24     ` Samuel Ortiz
2012-05-30  4:47 ` [PATCH 19/22] net/smsc911x: Repair broken failure paths Lee Jones
2012-05-30  4:47   ` Lee Jones
2012-05-30  7:16   ` Linus Walleij
2012-05-30  7:16     ` Linus Walleij
2012-05-30 21:52     ` David Miller
2012-05-30 21:52       ` David Miller
2012-05-30  4:47 ` [PATCH 20/22] pinctrl-nomadik: Allow Device Tree driver probing Lee Jones
2012-05-30  7:18   ` Linus Walleij
2012-05-30  4:47 ` [PATCH 21/22] ARM: ux500: Enable probing of pinctrl through Device Tree Lee Jones
2012-05-30  7:18   ` Linus Walleij
2012-05-30  4:47 ` [PATCH 22/22] mfd: Enable DT probing of the DB8500 PRCMU Lee Jones
2012-05-30  4:47   ` Lee Jones
2012-05-30  7:19   ` Linus Walleij
2012-05-30  7:19     ` Linus Walleij

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