diff options
| author | Peter Boonstoppel <pboonstoppel@nvidia.com> | 2014-02-06 14:24:50 -0800 |
|---|---|---|
| committer | Chao Xu <cxu@nvidia.com> | 2014-03-03 10:45:40 -0800 |
| commit | 7a07d8589e9a9e7058097b551f981fa876a2d45f (patch) | |
| tree | 85f232d991e9b9db716e9d2c46fdf39e6ea3bacd /drivers/cpuidle | |
| parent | 9a2608d4c47b62537f31de5f93230ea032058163 (diff) | |
cpuidle: denver: Disable non-primary states on init
Deeper idle states should be explicitely enabled through sysfs
Bug 1284794
Bug 1428014
Change-Id: I623809039d20011577fd34dfb21036690e40ed45
Signed-off-by: Peter Boonstoppel <pboonstoppel@nvidia.com>
Reviewed-on: http://git-master/r/368919
Reviewed-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Tested-by: Krishna Sitaraman <ksitaraman@nvidia.com>
Reviewed-by: Chao Xu <cxu@nvidia.com>
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle-denver.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/cpuidle/cpuidle-denver.c b/drivers/cpuidle/cpuidle-denver.c index c61610b01f07..2d48eba8ef0b 100644 --- a/drivers/cpuidle/cpuidle-denver.c +++ b/drivers/cpuidle/cpuidle-denver.c @@ -88,9 +88,16 @@ static int __init denver_power_states_init(void) state->enter = denver_enter_c_state; - /* Map index to the actual LP state */ - if (of_property_read_u32(child, "pmstate", &prop) != 0) + /* Bringup all states except clock gating in disabled mode */ + if (of_property_read_u32(child, "pmstate", &prop) == 0) { + if (prop == 0) + state->disabled = false; + else + state->disabled = true; + } else continue; + + /* Map index to the actual LP state */ pmstate_map[state_count] = prop; /* Create a debugfs node for the idle state */ |