[PATCH V3 10/19] OMAP3+: SR: enable/disable SR only on need
From: Kevin Hilman <hidden>
Date: 2011-03-17 17:20:32
Also in:
linux-omap
Nishanth Menon [off-list ref] writes:
Since we already know the state of the autocomp enablement, we can see if the requested state is different from the current state and enable/disable SR only on the need basis. Signed-off-by: Nishanth Menon <nm@ti.com>
Thanks, queuing for 2.6.40. Kevin
quoted hunk
--- arch/arm/mach-omap2/smartreflex.c | 11 +++++++---- 1 files changed, 7 insertions(+), 4 deletions(-)diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c index f9057ad..2b6fdc7 100644 --- a/arch/arm/mach-omap2/smartreflex.c +++ b/arch/arm/mach-omap2/smartreflex.c@@ -806,10 +806,13 @@ static int omap_sr_autocomp_store(void *data, u64 val) return -EINVAL; } - if (!val) - sr_stop_vddautocomp(sr_info); - else - sr_start_vddautocomp(sr_info); + /* control enable/disable only if there is a delta in value */ + if (sr_info->autocomp_active != val) { + if (!val) + sr_stop_vddautocomp(sr_info); + else + sr_start_vddautocomp(sr_info); + } return 0; }