zll5258的博客

∣↙lpm_suspend_enter()  [深待机，可输出GPIO，clock, LDO信息]            ∣↙suspend_ops->enter()//检查没有问题真正待机------当前都在suspend_enter()函数∣↙syscore_resume()     ∣↙arch_suspend_enable_iqrs()     ∣↙enable_nonbo

smbchg_probe->smbchg_request_irqs(chip)->REQUEST_IRQ(chip,spmi_resource, chip->src_detect_irq,"usbin-src-det",    src_detect_handler, flags, rc);    ->update_usb_status(chip, usb_present, 0)

module_i2c_driver(bq25890_driver);----------------------------------------------/kernel/drivers/power/yl_bq25890.c   --> #definemodule_i2c_driver(__i2c_driver) module_driver(__i2c_driver, i2c_add_dr

采用wakeup source 机制，wakeup source 是一种suspend blocker，它阻碍系统进入休眠起点：sys/power/autosleep 写入mem；off→pm_autosleep_set_state(state)              //----------------kernel/kernel/power/main.c↘queue_up_s