diff options
| author | Frank Luo <luofrank@google.com> | 2018-11-20 15:33:34 +0800 |
|---|---|---|
| committer | Georg Veichtlbauer <georg@vware.at> | 2023-07-16 13:06:51 +0200 |
| commit | 997b726bc092e29a9c6bf5f8925c98defc69a6cd (patch) | |
| tree | 5374dfb307068413ea1a9113d1938acaf9ee22e8 /drivers | |
| parent | b933e4d37bc023d27c7394626669bae0a201da52 (diff) | |
kernel: power: Workaround for sensor ipc message causing high power consume
Sync from Qcom's document KBA-180725024109
To avoid the non-wakeup type sensor data break the AP sleep flow,
notify sensor subsystem in the first place of pm_suspend .
Bug: 118418963
Test: measure power consumption after running test case
Change-Id: I2848230d495e30ac462aef148b3f885103d9c24e
Signed-off-by: Frank Luo <luofrank@google.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/soc/qcom/smp2p_sleepstate.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/soc/qcom/smp2p_sleepstate.c b/drivers/soc/qcom/smp2p_sleepstate.c index 2ef25e48ce50..1f0809b61220 100644 --- a/drivers/soc/qcom/smp2p_sleepstate.c +++ b/drivers/soc/qcom/smp2p_sleepstate.c @@ -20,7 +20,8 @@ #define SET_DELAY (2 * HZ) #define PROC_AWAKE_ID 12 /* 12th bit */ -static int slst_gpio_base_id; +int slst_gpio_base_id; + /** * sleepstate_pm_notifier() - PM notifier callback function. @@ -36,13 +37,11 @@ static int sleepstate_pm_notifier(struct notifier_block *nb, { switch (event) { case PM_SUSPEND_PREPARE: - gpio_set_value(slst_gpio_base_id + PROC_AWAKE_ID, 0); msleep(25); /* To be tuned based on SMP2P latencies */ msm_ipc_router_set_ws_allowed(true); break; case PM_POST_SUSPEND: - gpio_set_value(slst_gpio_base_id + PROC_AWAKE_ID, 1); msleep(25); /* To be tuned based on SMP2P latencies */ msm_ipc_router_set_ws_allowed(false); break; |