[PATCH 05/11] OMAPDSS: add clk_prepare and clk_unprepare

Rajendra Nayak rnayak at ti.com
Tue Jun 26 03:36:38 EDT 2012

On Tuesday 26 June 2012 12:25 PM, Tomi Valkeinen wrote:
> On Tue, 2012-06-26 at 10:30 +0530, Rajendra Nayak wrote:
>>> So as far as I see, clocks are never handled in atomic context. Is
>>> everything related to the base clk stuff already in mainline? Can I take
>>> the clk_prepare/unprepare patch into my omapdss tree?
>> Well the Common Clk framework is already in mainline, but we still don;t
>> have CONFIG_COMMON_CLK enabled for our builds yet. So until we do so,
>> clk_prepare/unprepare will just be stubs which do nothing.
> But if I understood correctly, clk_prepare and clk_unprepare are anyway
> no-ops with dss clocks, even when CONFIG_COMMON_CLK is enabled?

With CONFIG_COMMON_CLK enabled, they will do prepare use-counting with
a mutex lock/unlock around it.

> My point was only to understand if I can safely take the patch into
> omapdss tree, instead of it going through l-o, to avoid any possible
> conflicts.

yes, I don't see any issues with it going through dss tree.

>   Tomi

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