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From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 5/5] clk: dt: binding for basic gate clock
Date: Wed, 4 Sep 2013 10:59:09 -0700	[thread overview]
Message-ID: <20130904175909.GB31541@atomide.com> (raw)
In-Reply-To: <CAD6h2NSr0cM_SWqniC30pYm0mCeziBOzVg-46-814qPMxUwDCQ@mail.gmail.com>

* Haojian Zhuang <haojian.zhuang@linaro.org> [130903 20:11]:
> 
> We can see that it'll try to find static mapping. What's the static mapping?
> If we define iotable in machine driver, we have the static mapping, just like
> debug_ll. If we parse everything from DTS file, it'll always get a new virtual
> address from vm area. So it always create a new page mapping even for one
> register.

I may not follow you here.. But it seems that you've missing something with
the static mapping: It's found based on the physical address. So if you
create static mappings for your SoC with iotable_init(), those mappings
will be available everywhere including drivers when you do ioremap().

Regards,

Tony

  reply	other threads:[~2013-09-04 17:59 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-22  5:53 [PATCH v4 0/5] clk: dt: bindings for mux, divider & gate clocks Mike Turquette
2013-08-22  5:53 ` [PATCH v4 1/5] clk: divider: replace bitfield width with mask Mike Turquette
2013-08-22  5:53 ` [PATCH v4 2/5] clk: of: helper for determining number of parent clocks Mike Turquette
2013-08-22  5:53 ` [PATCH v4 3/5] clk: dt: binding for basic multiplexer clock Mike Turquette
2013-08-28 15:50   ` Kumar Gala
2013-08-29  1:14     ` Mike Turquette
2013-08-29  6:58       ` Tero Kristo
2013-08-30  5:54         ` Tony Lindgren
2013-08-30 20:02       ` Kumar Gala
2013-08-30 20:33         ` Mike Turquette
2013-08-30 20:48           ` Kumar Gala
2013-08-30 21:37           ` Stephen Warren
2013-09-03 23:22             ` Mike Turquette
2013-09-04 18:36               ` Stephen Warren
2013-09-05 18:29                 ` Mike Turquette
2013-09-05 20:30                   ` Stephen Warren
2013-09-05 20:51                     ` Sylwester Nawrocki
2013-09-06  6:53                     ` Tero Kristo
2013-09-06 19:01                       ` Stephen Warren
2013-09-07  4:15                         ` Saravana Kannan
2013-09-07 12:27                         ` Tomasz Figa
2013-08-22  5:53 ` [PATCH v4 4/5] clk: dt: binding for basic divider clock Mike Turquette
2013-08-22  5:53 ` [PATCH v4 5/5] clk: dt: binding for basic gate clock Mike Turquette
2013-08-30  1:45   ` Haojian Zhuang
2013-08-30 20:06     ` Stephen Warren
2013-09-04  3:03       ` Haojian Zhuang
2013-09-04 17:59         ` Tony Lindgren [this message]
2013-09-07 11:56           ` Tomasz Figa
2013-08-29 18:23 ` [PATCH v4 0/5] clk: dt: bindings for mux, divider & gate clocks Santosh Shilimkar
2013-08-30  7:05   ` Tero Kristo

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