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From: Nishanth Menon <nm@ti.com>
To: Russ Dill <russ.dill@gmail.com>
Cc: Dave Gerlach <d-gerlach@ti.com>,
	linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
	Paul Walmsley <paul@pwsan.com>, Kevin Hilman <khilman@linaro.org>,
	Vaibhav Bedia <vaibhav.bedia@ti.com>,
	Tony Lingren <tony@atomide.com>,
	Santosh Shilimkar <santosh.shilimkar@ti.com>,
	Benoit Cousson <benoit.cousson@linaro.org>
Subject: Re: [PATCHv3 8/9] ARM: OMAP2+: AM33XX: Basic suspend resume support
Date: Thu, 8 Aug 2013 07:26:48 -0500	[thread overview]
Message-ID: <52038E88.2050604@ti.com> (raw)
In-Reply-To: <CA+Bv8XbK+=pvG+bbvfCtS2Rtg-YoAhuUbWjSro9m4xWjw=Cr8A@mail.gmail.com>

On 08/08/2013 03:45 AM, Russ Dill wrote:
>   In reference to
> the M3 handling it, the M3 wouldn't know which devices have a driver
> bound and which don't.
Does it need to? M3 firmware can pretty much define "I will force the 
device into low power state, and if the drivers dont handle things 
properly, fix the darned driver". M3 behavior should be considered as a 
"hardware" as far as Linux running on MPU is concerned, and firmware 
helps change the behavior by accounting for SoC quirks. *if* we have 
ability to handle this in the firmware, there is no need to carry this 
in Linux.

-- 
Regards,
Nishanth Menon

WARNING: multiple messages have this Message-ID (diff)
From: nm@ti.com (Nishanth Menon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv3 8/9] ARM: OMAP2+: AM33XX: Basic suspend resume support
Date: Thu, 8 Aug 2013 07:26:48 -0500	[thread overview]
Message-ID: <52038E88.2050604@ti.com> (raw)
In-Reply-To: <CA+Bv8XbK+=pvG+bbvfCtS2Rtg-YoAhuUbWjSro9m4xWjw=Cr8A@mail.gmail.com>

On 08/08/2013 03:45 AM, Russ Dill wrote:
>   In reference to
> the M3 handling it, the M3 wouldn't know which devices have a driver
> bound and which don't.
Does it need to? M3 firmware can pretty much define "I will force the 
device into low power state, and if the drivers dont handle things 
properly, fix the darned driver". M3 behavior should be considered as a 
"hardware" as far as Linux running on MPU is concerned, and firmware 
helps change the behavior by accounting for SoC quirks. *if* we have 
ability to handle this in the firmware, there is no need to carry this 
in Linux.

-- 
Regards,
Nishanth Menon

  reply	other threads:[~2013-08-08 12:27 UTC|newest]

Thread overview: 212+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-06 17:49 [PATCHv3 0/9] ARM: OMAP2+: AM33XX: Add suspend-resume support Dave Gerlach
2013-08-06 17:49 ` Dave Gerlach
2013-08-06 17:49 ` [PATCHv3 1/9] memory: emif: Move EMIF register defines to include/linux/ Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-08  0:48   ` Russ Dill
2013-08-08  0:48     ` Russ Dill
2013-08-08 13:35   ` Santosh Shilimkar
2013-08-08 13:35     ` Santosh Shilimkar
2013-08-12 19:32     ` Greg Kroah-Hartman
2013-08-12 19:32       ` Greg Kroah-Hartman
2013-08-12 19:33       ` Santosh Shilimkar
2013-08-12 19:33         ` Santosh Shilimkar
2013-08-06 17:49 ` [PATCHv3 2/9] ARM: OMAP2+: AM33XX: control: Add some control module registers and APIs Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-08  0:52   ` Russ Dill
2013-08-08  0:52     ` Russ Dill
2013-08-08 13:44   ` Santosh Shilimkar
2013-08-08 13:44     ` Santosh Shilimkar
2013-08-08 16:16     ` Dave Gerlach
2013-08-08 16:16       ` Dave Gerlach
2013-08-09  5:11       ` Tony Lindgren
2013-08-09  5:11         ` Tony Lindgren
2013-08-09 20:55         ` Dave Gerlach
2013-08-09 20:55           ` Dave Gerlach
2013-08-12  7:54           ` Tony Lindgren
2013-08-12  7:54             ` Tony Lindgren
2013-08-12 19:17           ` Kevin Hilman
2013-08-12 19:17             ` Kevin Hilman
2013-08-12 21:40             ` Dave Gerlach
2013-08-12 21:40               ` Dave Gerlach
2013-08-13 14:29               ` Kevin Hilman
2013-08-13 14:29                 ` Kevin Hilman
2013-08-13 15:08                 ` Santosh Shilimkar
2013-08-13 15:08                   ` Santosh Shilimkar
2013-08-13 16:19                   ` Kevin Hilman
2013-08-13 16:19                     ` Kevin Hilman
2013-08-13 18:18                     ` Santosh Shilimkar
2013-08-13 18:18                       ` Santosh Shilimkar
2013-08-13 18:30                       ` Russ Dill
2013-08-13 18:30                         ` Russ Dill
2013-08-13 18:40                         ` Santosh Shilimkar
2013-08-13 18:40                           ` Santosh Shilimkar
2013-08-13 19:11                         ` Kevin Hilman
2013-08-13 19:11                           ` Kevin Hilman
2013-08-14 17:27                           ` Suman Anna
2013-08-14 17:27                             ` Suman Anna
2013-08-14 19:16                             ` Russ Dill
2013-08-14 19:16                               ` Russ Dill
2013-08-20 23:39                             ` Paul Walmsley
2013-08-20 23:39                               ` Paul Walmsley
2013-08-21 17:32                               ` Suman Anna
2013-08-21 17:32                                 ` Suman Anna
2013-08-06 17:49 ` [PATCHv3 3/9] ARM: OMAP: DTB: Update IRQ data for WKUP_M3 Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-08  0:53   ` Russ Dill
2013-08-08  0:53     ` Russ Dill
2013-08-08 13:46   ` Santosh Shilimkar
2013-08-08 13:46     ` Santosh Shilimkar
2013-08-06 17:49 ` [PATCHv3 4/9] ARM: OMAP2+: AM33XX: Reserve memory to comply with EMIF spec Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-08  2:30   ` Russ Dill
2013-08-08  2:30     ` Russ Dill
2013-08-08 14:19   ` Santosh Shilimkar
2013-08-08 14:19     ` Santosh Shilimkar
2013-08-08 18:16   ` Kevin Hilman
2013-08-08 18:16     ` Kevin Hilman
2013-08-08 19:31     ` Santosh Shilimkar
2013-08-08 19:31       ` Santosh Shilimkar
2013-08-08 20:05       ` Kevin Hilman
2013-08-08 20:05         ` Kevin Hilman
2013-08-08 20:11         ` Santosh Shilimkar
2013-08-08 20:11           ` Santosh Shilimkar
2013-08-09 15:11           ` Kevin Hilman
2013-08-09 15:11             ` Kevin Hilman
2013-08-09 16:25             ` Dave Gerlach
2013-08-09 16:25               ` Dave Gerlach
2013-08-06 17:49 ` [PATCHv3 5/9] ARM: OMAP2+: AM33XX: Add assembly code for PM operations Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-08  7:02   ` Russ Dill
2013-08-08  7:02     ` Russ Dill
2013-08-08 14:50   ` Santosh Shilimkar
2013-08-08 14:50     ` Santosh Shilimkar
2013-08-08 15:16     ` Russ Dill
2013-08-08 15:16       ` Russ Dill
2013-08-08 15:22       ` Santosh Shilimkar
2013-08-08 15:22         ` Santosh Shilimkar
2013-08-08 16:03         ` Russ Dill
2013-08-08 16:03           ` Russ Dill
2013-08-19 12:54   ` Gururaja Hebbar
2013-08-19 12:54     ` Gururaja Hebbar
2013-08-19 17:51     ` Dave Gerlach
2013-08-19 17:51       ` Dave Gerlach
2013-08-06 17:49 ` [PATCHv3 6/9] ARM: OMAP2+: timer: Add suspend-resume callbacks for clkevent device Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-08  7:03   ` Russ Dill
2013-08-08  7:03     ` Russ Dill
2013-08-08 14:23   ` Santosh Shilimkar
2013-08-08 14:23     ` Santosh Shilimkar
2013-08-08 16:09     ` Dave Gerlach
2013-08-08 16:09       ` Dave Gerlach
2013-08-08 18:25   ` Kevin Hilman
2013-08-08 18:25     ` Kevin Hilman
2013-08-08 19:49     ` Dave Gerlach
2013-08-08 19:49       ` Dave Gerlach
2013-08-06 17:49 ` [PATCHv3 7/9] ARM: OMAP: omap_device: Add APIs to enable and idle hwmods Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-08  7:05   ` Russ Dill
2013-08-08  7:05     ` Russ Dill
2013-08-08 14:26   ` Santosh Shilimkar
2013-08-08 14:26     ` Santosh Shilimkar
2013-08-06 17:49 ` [PATCHv3 8/9] ARM: OMAP2+: AM33XX: Basic suspend resume support Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-07 16:22   ` Nishanth Menon
2013-08-07 16:22     ` Nishanth Menon
2013-08-07 18:12     ` Dave Gerlach
2013-08-07 18:12       ` Dave Gerlach
2013-08-07 19:16       ` Nishanth Menon
2013-08-07 19:16         ` Nishanth Menon
2013-08-08  8:45   ` Russ Dill
2013-08-08  8:45     ` Russ Dill
2013-08-08 12:26     ` Nishanth Menon [this message]
2013-08-08 12:26       ` Nishanth Menon
2013-08-08 15:03       ` Santosh Shilimkar
2013-08-08 15:03         ` Santosh Shilimkar
2013-08-08 16:06         ` Dave Gerlach
2013-08-08 16:06           ` Dave Gerlach
2013-08-08 16:22           ` Nishanth Menon
2013-08-08 16:22             ` Nishanth Menon
2013-08-08 21:14           ` Kevin Hilman
2013-08-08 21:14             ` Kevin Hilman
2013-08-08 21:32             ` Nishanth Menon
2013-08-08 21:32               ` Nishanth Menon
2013-08-08 23:04               ` Kevin Hilman
2013-08-08 23:04                 ` Kevin Hilman
2013-08-09 15:11                 ` Nishanth Menon
2013-08-09 15:11                   ` Nishanth Menon
2013-08-09 16:12                   ` Kevin Hilman
2013-08-09 16:12                     ` Kevin Hilman
2013-08-09 16:36                     ` Nishanth Menon
2013-08-09 16:36                       ` Nishanth Menon
2013-08-09 20:34                       ` Kevin Hilman
2013-08-09 20:34                         ` Kevin Hilman
2013-08-09 21:35                         ` Nishanth Menon
2013-08-09 21:35                           ` Nishanth Menon
2013-08-09 22:28                         ` Russ Dill
2013-08-09 22:28                           ` Russ Dill
2013-08-12 16:09                           ` Kevin Hilman
2013-08-12 16:09                             ` Kevin Hilman
2013-08-30 17:29                 ` Vaibhav Bedia
2013-08-30 17:29                   ` Vaibhav Bedia
2013-08-20 22:48             ` Paul Walmsley
2013-08-20 22:48               ` Paul Walmsley
2013-08-23 14:56               ` Dave Gerlach
2013-08-23 14:56                 ` Dave Gerlach
2013-08-13  7:43   ` Russ Dill
2013-08-13  7:43     ` Russ Dill
2013-08-13 14:59     ` Kevin Hilman
2013-08-13 14:59       ` Kevin Hilman
2013-08-27 21:45   ` Kevin Hilman
2013-08-27 21:45     ` Kevin Hilman
2013-08-29 21:41     ` Dave Gerlach
2013-08-29 21:41       ` Dave Gerlach
2013-08-29 22:02       ` Kevin Hilman
2013-08-29 22:02         ` Kevin Hilman
2013-08-30 17:39     ` Vaibhav Bedia
2013-08-30 17:39       ` Vaibhav Bedia
2013-08-30 21:18       ` Kevin Hilman
2013-08-30 21:18         ` Kevin Hilman
2013-08-06 17:49 ` [PATCHv3 9/9] ARM: OMAP2+: AM33XX: Hookup AM33XX PM code into OMAP builds Dave Gerlach
2013-08-06 17:49   ` Dave Gerlach
2013-08-08  8:47   ` Russ Dill
2013-08-08  8:47     ` Russ Dill
2013-08-08 14:53   ` Santosh Shilimkar
2013-08-08 14:53     ` Santosh Shilimkar
2013-08-08 13:31 ` [PATCHv3 0/9] ARM: OMAP2+: AM33XX: Add suspend-resume support Santosh Shilimkar
2013-08-08 13:31   ` Santosh Shilimkar
2013-08-11 11:53 ` Daniel Mack
2013-08-11 11:53   ` Daniel Mack
2013-08-12 18:59   ` Dave Gerlach
2013-08-12 18:59     ` Dave Gerlach
2013-08-13 12:39     ` Daniel Mack
2013-08-13 12:39       ` Daniel Mack
2013-08-13 15:33       ` Dave Gerlach
2013-08-13 15:33         ` Dave Gerlach
2013-08-13 15:51         ` Daniel Mack
2013-08-13 15:51           ` Daniel Mack
2013-08-19  9:23 ` Gururaja Hebbar
2013-08-19  9:23   ` Gururaja Hebbar
2013-08-19 17:47   ` Dave Gerlach
2013-08-19 17:47     ` Dave Gerlach
2013-08-27 20:23     ` Kevin Hilman
2013-08-27 20:23       ` Kevin Hilman
2013-08-29 21:30       ` Dave Gerlach
2013-08-29 21:30         ` Dave Gerlach
2013-08-29 21:52         ` Kevin Hilman
2013-08-29 21:52           ` Kevin Hilman
2013-08-29 22:20           ` Dave Gerlach
2013-08-29 22:20             ` Dave Gerlach
2013-08-29 22:20         ` Kevin Hilman
2013-08-29 22:20           ` Kevin Hilman
2013-08-29 22:43           ` Russ Dill
2013-08-29 22:43             ` Russ Dill
2013-08-29 23:02             ` Kevin Hilman
2013-08-29 23:02               ` Kevin Hilman
2013-09-03 17:24               ` Dave Gerlach
2013-09-03 17:24                 ` Dave Gerlach
2013-09-04 15:01                 ` Kevin Hilman
2013-09-04 15:01                   ` Kevin Hilman
2013-09-04 15:12                   ` Russ Dill
2013-09-04 15:12                     ` Russ Dill
2013-09-04 15:18                     ` Kevin Hilman
2013-09-04 15:18                       ` Kevin Hilman

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