diff options
| author | Bharat Nihalani <bnihalani@nvidia.com> | 2011-05-19 20:09:14 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:52:07 -0800 |
| commit | 5fddce3af3a5af7775b3c2e825ce34b14f796fe2 (patch) | |
| tree | 3fb1707f2262751e4c587fcbfd5bbad253656991 /arch/arm/mach-tegra/board-cardhu-panel.c | |
| parent | 10c023773e43732835d237b08838f85b8b929830 (diff) | |
ARM: tegra: common: dynamic cpufreq governor
To improve the power consumption situation for MP3 playback
the scaling governor is set to conservative when display
is turned off and the default governor is saved. The governor
is restored when display is turned on.
Bug 817727
Original work done by "Wen Yi <wyi@nvidia.com>"
Original-Change-Id: I43ffb0d508cc6d0a80eeeffcbab77526b644c437
Reviewed-on: http://git-master/r/32194
Reviewed-by: Niket Sirsi <nsirsi@nvidia.com>
Tested-by: Niket Sirsi <nsirsi@nvidia.com>
Rebase-Id: Rffc94033789079726dad27ff5c65e20001478862
Diffstat (limited to 'arch/arm/mach-tegra/board-cardhu-panel.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-cardhu-panel.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-cardhu-panel.c b/arch/arm/mach-tegra/board-cardhu-panel.c index 6279fc341c24..1285f3b1eb0b 100644 --- a/arch/arm/mach-tegra/board-cardhu-panel.c +++ b/arch/arm/mach-tegra/board-cardhu-panel.c @@ -1051,6 +1051,10 @@ static void cardhu_panel_early_suspend(struct early_suspend *h) unsigned i; for (i = 0; i < num_registered_fb; i++) fb_blank(registered_fb[i], FB_BLANK_POWERDOWN); +#ifdef CONFIG_TEGRA_CONVSERVATIVE_GOV_ON_EARLYSUPSEND + cpufreq_save_default_governor(); + cpufreq_set_conservative_governor(); +#endif } static void cardhu_panel_late_resume(struct early_suspend *h) @@ -1058,6 +1062,9 @@ static void cardhu_panel_late_resume(struct early_suspend *h) unsigned i; for (i = 0; i < num_registered_fb; i++) fb_blank(registered_fb[i], FB_BLANK_UNBLANK); +#ifdef CONFIG_TEGRA_CONVSERVATIVE_GOV_ON_EARLYSUPSEND + cpufreq_restore_default_governor(); +#endif } #endif |