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How to view the Linux source of wake up

Time:10-15

Consult a great god, and how to look at the Linux source of dormancy awakening after wake up, because my board, occasionally wake up, wake up I don't know what conditions.

CodePudding user response:

After a serial port to see print information

CodePudding user response:

I connect the serial port,

CodePudding user response:

[51:53]
[51:53] msm8953_64:/#
[an] msm8953_64:/#
[an] msm8953_64:/#
[51:55] msm8953_64:/# echo 7 July 7 7 & gt; The/proc/sys/kernel/printk
[message] msm8953_64:/# [55.855147] dsi1_bridge_resume, connected: 0
[message] [55.855156] dsi1_bridge_notify_clients list_for_each
[message] [55.855164] dsi1_bridge_notify_clients: notifying event 8 to client dsi
[52:00] [56.279909] mdss_dsi_panel_bl_ctrl: Unknown bl_ctrl configuration
[52:00] [56.313741] cec_rda_msg: cec not enabled
[52:00] [56.372325] dsi1_bridge_resume, connected: 1
[52:10] [66.544650] dsi1_bridge_suspend, connected: 1
[52:10] [66.544965] dsi1_bridge_notify_clients list_for_each
[52:10] [66.544972] dsi1_bridge_notify_clients: notifying event 16 to client dsi
[52:10] [66.579738] mdss_dsi_panel_bl_ctrl: Unknown bl_ctrl configuration
[52:10] [66.942631] PM: suspend entry 03:22:37. 1970-01-18 177031128 UTC
PM: [52:11] [66.947669] Syncing filesystems... Done.
[52:11] [67.059071] Error: the value returning - 512
[52:11] [67.096535] PM: Wakeup pending, aborting suspend
[52:11] [67.100231] active wakeup source: PowerManagerService. Broadcasts
[52:11] [67.106143] active wakeup source: PowerManagerService. WakeLocks
[52:11] [67.112376] Freezing of the tasks aborted after 0.058 seconds
[52:11] [67.163866] cpufreq: Frequency violation fixed for CPU0
[52:11] [67.168775] PM: suspend the exit 03:22:37. 1970-01-18 403234357 UTC
[52:11] [67.274892] PM: suspend entry 03:22:37. 1970-01-18 509348732 UTC
PM: [52:11] [67.279907] Syncing filesystems... Done.
[52:11] [67.304758] Error: the value returning - 512
[52:37] [67.441531] PM: suspend of devices complete after 69.722 msecs
[52:37] [67.450091] PM: newest suspend of devices complete after 8.537 msecs
PM: [52:37] [67.461136] noirq suspend of devices complete after 11.030 msecs
[52:37] [67.461157] Disabling non - boot CPUs...
[52:37] [67.470165] IRQ7 no longer affine to CPU1
[52:37] [67.470173] IRQ8 no longer affine to CPU1
[52:37] [67.470180] IRQ9 no longer affine to CPU1
[52:37] [67.470187] IRQ10 no longer affine to CPU1
[52:37] [67.470195] IRQ11 no longer affine to CPU1
[52:37] [67.470201] IRQ12 no longer affine to CPU1
[52:37] [67.470208] IRQ13 no longer affine to CPU1
[52:37] [67.470215] IRQ14 no longer affine to CPU1
[52:37] [67.470223] IRQ15 no longer affine to CPU1
[52:37] [67.470230] IRQ16 no longer affine to CPU1
[52:37] [67.562601] Suspended for 0.000 seconds
[52:37] [67.563849] Enabling non - boot CPUs...
[52:37] [67.571525] CPU1 is up
[52:37] [67.577502] CPU2 is up
[52:37] [67.584359] CPU3 is up
[52:37] [67.592683], issue is up
[52:37] [67.601025] CPU5 is up
[52:37] [67.609816] CPU6 is up
[52:37] [67.617697] CPU7 is up
PM: [52:37] [67.623600] noirq resume of devices complete after 4.758 msecs
[52:37] [67.632465] PM: early resume of devices complete after 7.064 msecs
[52:37] [67.678918] among MSM - dwc3 7000000. Ssusb: dwc3 exited the from low power mode
[52:37] [67.748734] PM: resume of devices complete after 116.242 msecs
[52:37] [67.919199] PM: suspend the exit 03:23:03. 1970-01-18 589242784 UTC
[52:38] [68.869585] among MSM - dwc3 7000000. Ssusb: dwc3 in low power mode
[52:38] [69.011260] PM: suspend entry 03:23:04. 1970-01-18 681311534 UTC
PM: [52:38] [69.016142] Syncing filesystems... Done.
[52:38] [69.040960] Error: the value returning - 512
[52:42] [69.113184] PM: suspend of devices complete after 43.888 msecs
[52:42] [69.117153] PM: newest suspend of devices complete after 3.960 msecs
PM: [52:42] [69.124135] noirq suspend of devices complete after 6.975 msecs
[52:42] [69.124142] Disabling non - boot CPUs...
[52:42] [69.182832] Suspended for 0.000 seconds
[52:42] [69.183633] Enabling non - boot CPUs...
[52:42] [69.188869] CPU1 is up
[52:42] [69.192797] CPU2 is up
[52:42] [69.196374] CPU3 is up
[52:42] [69.201891], issue is up
[52:42] [69.206047] CPU5 is up
[52:42] [69.212097] CPU6 is up
[52:42] [69.216356] CPU7 is up
PM: [52:42] [69.221159] noirq resume of devices complete after 4.531 msecs
[52:42] [69.225626] PM: early resume of devices complete after 3.604 msecs
[52:42] [69.256897] among MSM - dwc3 7000000. Ssusb: dwc3 exited the from low power mode
[52:42] [69.320210] PM: resume of devices complete after 94.574 msecs
[52:42] [69.422402] cpufreq: Frequency violation fixed for CPU0
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