From: Santosh Shilimkar <santosh.shilimkar@ti.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Paul Walmsley <paul@pwsan.com>, Tony Lindgren <tony@atomide.com>,
Linux OMAP Mailing List <linux-omap@vger.kernel.org>,
Felipe Balbi <balbi@ti.com>,
Linux ARM Kernel Mailing List
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency
Date: Fri, 15 Feb 2013 19:01:47 +0530 [thread overview]
Message-ID: <511E38C3.7080404@ti.com> (raw)
In-Reply-To: <20130215132726.GT17852@n2100.arm.linux.org.uk>
On Friday 15 February 2013 06:57 PM, Russell King - ARM Linux wrote:
> On Fri, Feb 15, 2013 at 06:56:47PM +0530, Santosh Shilimkar wrote:
>> Whats your view on use of arch_ioremap_caller() hook ? This can allow
>> us to avoid the dual ioremap() issue discussed here if the hook
>> maintains the list of mapped ios.
>>
>> I was even thinking of having such intelligence within the core
>> ioremap code but thought that might be too invasive.
>
> Why do you even need it? There's no problem with ioremapping the same
> space multiple times (you end up with multiple mappings but that
> shouldn't be a problem, except for the additional space used.)
>
It just waste of iospace and Tony insisted to have just single ioremap()
hence all this discussion
regards
Santosh
WARNING: multiple messages have this Message-ID (diff)
From: santosh.shilimkar@ti.com (Santosh Shilimkar)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency
Date: Fri, 15 Feb 2013 19:01:47 +0530 [thread overview]
Message-ID: <511E38C3.7080404@ti.com> (raw)
In-Reply-To: <20130215132726.GT17852@n2100.arm.linux.org.uk>
On Friday 15 February 2013 06:57 PM, Russell King - ARM Linux wrote:
> On Fri, Feb 15, 2013 at 06:56:47PM +0530, Santosh Shilimkar wrote:
>> Whats your view on use of arch_ioremap_caller() hook ? This can allow
>> us to avoid the dual ioremap() issue discussed here if the hook
>> maintains the list of mapped ios.
>>
>> I was even thinking of having such intelligence within the core
>> ioremap code but thought that might be too invasive.
>
> Why do you even need it? There's no problem with ioremapping the same
> space multiple times (you end up with multiple mappings but that
> shouldn't be a problem, except for the additional space used.)
>
It just waste of iospace and Tony insisted to have just single ioremap()
hence all this discussion
regards
Santosh
next prev parent reply other threads:[~2013-02-15 13:30 UTC|newest]
Thread overview: 142+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-14 11:15 [RFC/NOT FOR MERGING 1/3] arm: omap: use generic implementation if !od Felipe Balbi
2013-02-14 11:15 ` Felipe Balbi
2013-02-14 11:15 ` [RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency Felipe Balbi
2013-02-14 17:12 ` Tony Lindgren
2013-02-14 17:12 ` Tony Lindgren
2013-02-14 17:56 ` Felipe Balbi
2013-02-14 17:56 ` Felipe Balbi
2013-02-14 18:12 ` Tony Lindgren
2013-02-14 18:12 ` Tony Lindgren
2013-02-14 19:27 ` Felipe Balbi
2013-02-14 19:27 ` Felipe Balbi
2013-02-14 19:39 ` Tony Lindgren
2013-02-14 19:39 ` Tony Lindgren
2013-02-14 20:47 ` Paul Walmsley
2013-02-14 20:47 ` Paul Walmsley
2013-02-14 21:40 ` Paul Walmsley
2013-02-14 21:40 ` Paul Walmsley
2013-02-14 22:47 ` Tony Lindgren
2013-02-14 22:47 ` Tony Lindgren
2013-02-15 6:46 ` Felipe Balbi
2013-02-15 6:46 ` Felipe Balbi
2013-02-15 7:29 ` Santosh Shilimkar
2013-02-15 7:29 ` Santosh Shilimkar
2013-02-19 15:30 ` Paul Walmsley
2013-02-19 15:30 ` Paul Walmsley
2013-02-19 15:45 ` Russell King - ARM Linux
2013-02-19 15:45 ` Russell King - ARM Linux
2013-02-19 16:30 ` Tony Lindgren
2013-02-19 16:30 ` Tony Lindgren
2013-02-19 18:22 ` Russell King - ARM Linux
2013-02-19 18:22 ` Russell King - ARM Linux
2013-02-19 19:31 ` Tony Lindgren
2013-02-19 19:31 ` Tony Lindgren
2013-02-19 19:43 ` hwmod data duplication (was: Re: [RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency) Felipe Balbi
2013-02-19 19:43 ` Felipe Balbi
2013-02-19 22:09 ` Tony Lindgren
2013-02-19 22:09 ` Tony Lindgren
2013-02-19 22:22 ` Felipe Balbi
2013-02-19 22:22 ` Felipe Balbi
2013-02-19 22:31 ` Tony Lindgren
2013-02-19 22:31 ` Tony Lindgren
2013-02-19 22:51 ` Felipe Balbi
2013-02-19 22:51 ` Felipe Balbi
2013-02-15 10:26 ` [RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency Russell King - ARM Linux
2013-02-15 10:26 ` Russell King - ARM Linux
2013-02-14 21:56 ` Paul Walmsley
2013-02-14 21:56 ` Paul Walmsley
2013-02-14 22:22 ` Tony Lindgren
2013-02-14 22:22 ` Tony Lindgren
2013-02-15 6:53 ` Felipe Balbi
2013-02-15 6:53 ` Felipe Balbi
2013-02-15 7:27 ` Bedia, Vaibhav
2013-02-15 7:27 ` Bedia, Vaibhav
2013-02-19 15:27 ` Paul Walmsley
2013-02-19 15:27 ` Paul Walmsley
2013-02-19 16:38 ` Tony Lindgren
2013-02-19 16:38 ` Tony Lindgren
2013-02-19 16:57 ` Felipe Balbi
2013-02-19 16:57 ` Felipe Balbi
2013-02-19 17:43 ` Tony Lindgren
2013-02-19 17:43 ` Tony Lindgren
2013-02-19 18:34 ` Felipe Balbi
2013-02-19 18:34 ` Felipe Balbi
2013-02-19 19:16 ` Kevin Hilman
2013-02-19 19:16 ` Kevin Hilman
2013-02-19 19:32 ` Felipe Balbi
2013-02-19 19:32 ` Felipe Balbi
2013-02-19 19:50 ` Kevin Hilman
2013-02-19 19:50 ` Kevin Hilman
2013-02-19 20:10 ` OMAP reset requirements (was: Re: [RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency) ^[:x Felipe Balbi
2013-02-19 20:10 ` OMAP reset requirements (was: Re: [RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency)^[:x Felipe Balbi
2013-02-19 20:25 ` OMAP reset requirements Kevin Hilman
2013-02-19 20:25 ` Kevin Hilman
2013-02-20 6:26 ` [RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency Santosh Shilimkar
2013-02-20 6:26 ` Santosh Shilimkar
2013-02-15 6:44 ` Felipe Balbi
2013-02-15 6:44 ` Felipe Balbi
2013-02-15 7:27 ` Bedia, Vaibhav
2013-02-15 7:27 ` Bedia, Vaibhav
2013-02-20 17:38 ` Paul Walmsley
2013-02-20 17:38 ` Paul Walmsley
2013-02-20 19:16 ` Felipe Balbi
2013-02-20 19:16 ` Felipe Balbi
2013-02-20 20:03 ` Paul Walmsley
2013-02-20 20:03 ` Paul Walmsley
2013-02-20 20:37 ` Russell King - ARM Linux
2013-02-20 20:37 ` Russell King - ARM Linux
2013-02-21 10:16 ` Peter De Schrijver
2013-02-21 10:16 ` Peter De Schrijver
2013-02-21 12:09 ` Peter Korsgaard
2013-02-21 12:09 ` Peter Korsgaard
2013-02-15 10:16 ` Russell King - ARM Linux
2013-02-15 10:16 ` Russell King - ARM Linux
2013-02-15 13:26 ` Santosh Shilimkar
2013-02-15 13:26 ` Santosh Shilimkar
2013-02-15 13:27 ` Russell King - ARM Linux
2013-02-15 13:27 ` Russell King - ARM Linux
2013-02-15 13:31 ` Santosh Shilimkar [this message]
2013-02-15 13:31 ` Santosh Shilimkar
2013-02-15 16:30 ` Tony Lindgren
2013-02-15 16:30 ` Tony Lindgren
2013-02-15 16:42 ` Felipe Balbi
2013-02-15 16:42 ` Felipe Balbi
2013-02-16 6:01 ` Santosh Shilimkar
2013-02-16 6:01 ` Santosh Shilimkar
2013-02-16 8:55 ` Felipe Balbi
2013-02-16 8:55 ` Felipe Balbi
2013-02-16 9:17 ` Santosh Shilimkar
2013-02-16 9:17 ` Santosh Shilimkar
2013-02-16 9:22 ` Felipe Balbi
2013-02-16 9:22 ` Felipe Balbi
2013-02-16 9:31 ` Santosh Shilimkar
2013-02-16 9:31 ` Santosh Shilimkar
2013-02-18 15:27 ` Kevin Hilman
2013-02-18 15:27 ` Kevin Hilman
2013-02-16 5:31 ` Santosh Shilimkar
2013-02-16 5:31 ` Santosh Shilimkar
2013-02-16 5:36 ` Nicolas Pitre
2013-02-16 5:36 ` Nicolas Pitre
2013-02-16 5:48 ` Santosh Shilimkar
2013-02-16 5:48 ` Santosh Shilimkar
2013-02-18 8:08 ` Bedia, Vaibhav
2013-02-18 8:08 ` Bedia, Vaibhav
2013-02-18 8:28 ` Santosh Shilimkar
2013-02-18 8:28 ` Santosh Shilimkar
2013-02-15 15:40 ` Kevin Hilman
2013-02-15 15:40 ` Kevin Hilman
2013-02-15 16:03 ` Felipe Balbi
2013-02-15 16:03 ` Felipe Balbi
2013-02-16 4:59 ` Santosh Shilimkar
2013-02-16 4:59 ` Santosh Shilimkar
2013-02-18 14:52 ` Kevin Hilman
2013-02-18 14:52 ` Kevin Hilman
2013-02-14 11:15 ` [RFC/NOT FOR MERGING 3/3] arm: boot: dts: omap: remove ti_hwmods from UART ports Felipe Balbi
2013-02-14 11:20 ` [RFC/NOT FOR MERGING 1/3] arm: omap: use generic implementation if !od Russell King - ARM Linux
2013-02-14 11:20 ` Russell King - ARM Linux
2013-02-14 17:57 ` Felipe Balbi
2013-02-14 17:57 ` Felipe Balbi
2013-02-15 15:28 ` Kevin Hilman
2013-02-15 15:28 ` Kevin Hilman
2013-02-15 16:04 ` Felipe Balbi
2013-02-15 16:04 ` Felipe Balbi
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