Ben Dooks 8a6720ec20 PM / clock_ops: fix up clk prepare/unprepare count ... The drivers/base/power/clock_ops.c file is causing warnings from the clock driver (as shown below) due to failing to do a clk_prepare() call before enabling a clock. It also fails to check the balance of prepare/unprepare as __pm_clk_remove() do clk_disable_unprepare() call. This bug has probably been in since commit b2476490e ("clk: introduce the common clock framework") as the warning was part of the original commit. It is strange that it has not been noticed (although this has also been coupled with a failure for certain SH builds to not build the necessary glue to use this method of controlling the clocks). In summary, this is probably needed in several stable branches but need advice on which ones. On the Renesas Lager board, this causes numerous warnings of the following and even worse the clock system will not enable clocks, causing drivers that are in development to fail to work: WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:883 __clk_enable+0x2c/0xa0() Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Reviewed-by: Ian Molton <ian.molton@codethink.co.uk> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2014-01-15 01:50:50 +01:00
..
clock_ops.c	PM / clock_ops: fix up clk prepare/unprepare count	2014-01-15 01:50:50 +01:00
common.c	PM: Avoid calling kfree() under spinlock in dev_pm_put_subsys_data()	2013-05-12 14:04:40 +02:00
domain_governor.c	PM / Domains: Fix computation of maximum domain off time	2012-05-11 21:11:44 +02:00
domain.c	PM / Runtime: Rework the "runtime idle" helper routine	2013-06-03 21:49:52 +02:00
generic_ops.c	PM / Runtime: Rework the "runtime idle" helper routine	2013-06-03 21:49:52 +02:00
main.c	Revert "cpufreq: suspend governors on system suspend/hibernate"	2013-12-08 01:04:17 +01:00
Makefile	PM / Domains: Add device stop governor function (v4)	2011-12-01 21:47:40 +01:00
opp.c	PM / OPP: rename header to linux/pm_opp.h	2013-10-25 22:33:23 +02:00
power.h	PM / QoS: Remove device PM QoS sysfs attributes at the right place	2013-03-04 14:23:12 +01:00
qos.c	PM / QoS: Add dev_pm_qos_request tracepoints	2013-06-24 13:09:03 +02:00
runtime.c	PM / Runtime: Respect autosuspend when idle triggers suspend	2013-10-16 02:06:57 +02:00
sysfs.c	driver core: replace strict_strto*() with kstrto*()	2013-07-26 18:02:43 -07:00
trace.c	drivers/base: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required.	2011-10-31 19:31:38 -04:00
wakeup.c	PM / Sleep: Print last wakeup source on failed wakeup_count write	2013-06-21 00:35:12 +02:00