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authorPaul Walmsley <paul@pwsan.com>2010-10-08 19:40:20 +0200
committerPaul Walmsley <paul@pwsan.com>2010-10-08 19:40:20 +0200
commit6041c27f51f237b59ea0838c33e08223cf98e43e (patch)
tree4081099b206d531c9a441a65a709d2b574081965 /arch/arm/plat-omap/clock.c
parentOMAP: control: move plat-omap/control.h to mach-omap2/control.h (diff)
downloadlinux-6041c27f51f237b59ea0838c33e08223cf98e43e.tar.xz
linux-6041c27f51f237b59ea0838c33e08223cf98e43e.zip
OMAP2+: clock: reduce the amount of standard debugging while disabling unused clocks
Reduce the amount of debugging generated by default when unused clocks are being disabled by the clock code. The previous code would only generate debug-level messages, but some people who wished to run production kernels with debug-level messages enabled reported that the large number of clock disable messages were slowing boot. Now to enable clock-by-clock disable messages, DEBUG needs to be defined in mach-omap2/clock.c. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Tuukka Tikkanen <tuukka.tikkanen@nokia.com> Cc: Tim Bird <tim.bird@am.sony.com>
Diffstat (limited to 'arch/arm/plat-omap/clock.c')
-rw-r--r--arch/arm/plat-omap/clock.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 7190cbd92620..fc62fb5fc20b 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -60,7 +60,7 @@ void clk_disable(struct clk *clk)
spin_lock_irqsave(&clockfw_lock, flags);
if (clk->usecount == 0) {
- printk(KERN_ERR "Trying disable clock %s with 0 usecount\n",
+ pr_err("Trying disable clock %s with 0 usecount\n",
clk->name);
WARN_ON(1);
goto out;
@@ -397,6 +397,7 @@ static int __init clk_disable_unused(void)
struct clk *ck;
unsigned long flags;
+ pr_info("clock: disabling unused clocks to save power\n");
list_for_each_entry(ck, &clocks, node) {
if (ck->ops == &clkops_null)
continue;
@@ -418,7 +419,7 @@ late_initcall(clk_disable_unused);
int __init clk_init(struct clk_functions * custom_clocks)
{
if (!custom_clocks) {
- printk(KERN_ERR "No custom clock functions registered\n");
+ pr_err("No custom clock functions registered\n");
BUG();
}