diff options
| author | Alex Frid <afrid@nvidia.com> | 2010-09-30 23:58:09 -0700 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2010-10-15 22:03:35 -0700 |
| commit | 8ec98051794908a84024cc640330a1c5abd375ea (patch) | |
| tree | 396c16688d6413dd1e70a1f0635bd36aaefe86b4 | |
| parent | 80e2d4752c5f291d8a63d537f89be14e25a4626c (diff) | |
[ARM/tegra] nvhost: Tuned ACM timeout.
Drastic reduction of ACM timeout to 2ms (from 1sec) resulted in power
increase for NV omxplayer video-playback (bug 738557). The reason is
that short-term scheduling does not provide enough idle time for LP2
state (CPU powered down). On the other hand, 1 sec timeout prevented
core voltage scaling during Android music audio-playback (bug 735111).
Hence, tuned ACM timeout to 25ms.
(cherry picked from commit 32c727ae2c4f91e8d7c9c261921bb62ad14217c9)
Change-Id: I96c46c43e9b3089b6a7e01db5f6d122122758c90
Reviewed-on: http://git-master.nvidia.com/r/8470
Tested-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Hoang Pham <hopham@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
| -rw-r--r-- | drivers/video/tegra/host/nvhost_acm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/tegra/host/nvhost_acm.c b/drivers/video/tegra/host/nvhost_acm.c index adb7ae2c6da3..6514f0e85263 100644 --- a/drivers/video/tegra/host/nvhost_acm.c +++ b/drivers/video/tegra/host/nvhost_acm.c @@ -26,7 +26,7 @@ #include <linux/err.h> #include <linux/device.h> -#define ACM_TIMEOUT_MSEC 2 +#define ACM_TIMEOUT_MSEC 25 void nvhost_module_busy(struct nvhost_module *mod) { |