[PATCHv4 6/8] ARM: OMAP: pm-debug: enhanced usecount debug support

On Mon, 2012-07-16 at 16:20 +0530, Rajendra Nayak wrote:

On Friday 13 July 2012 07:49 PM, Tero Kristo wrote:

quoted

Voltdm, pwrdm, clkdm, hwmod and clk usecounts are now separeted to
their own file, 'usecount'. This file shows the usecounts for every
active domain and their children recursively. 'count' file now only
shows power state counts for powerdomains.

The only comment I had on this patch was what I also said in response
to PATCH 1/8 about keeping the clock usecounts separate if possible.
voltdm, pwrdm, clkdm and hwmod are OMAP specific frameworks (and so is
clock framework for now) but sooner than later we would move to using
COMMON clock framework and then supporting the clock usecounts in
/debug/pm_debug/usecount would not be possible.

Well, I guess we can move these patches to a separate debug set for now
in that case, and people who want to use them can do that.

quoted

This patch also provices a way to do printk dumps from kernel code,
by calling the pm_dbg_dump_X functions. The plan is to call these
functions once an error condition is detected, e.g. failed suspend.

^
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This part is the main motivation for this patch imo.

-Tero