Openmoko Bug #2337: 2.6.34 slow resume

[Openmoko Public Trac]

#2337: 2.6.34 slow resume
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 Reporter:  jama    |          Owner:  openmoko-kernel
     Type:  defect  |         Status:  new            
 Priority:  normal  |      Milestone:                 
Component:  kernel  |        Version:  unspecified    
 Severity:  normal  |       Keywords:                 
 Haspatch:  0       |      Blockedby:                 
Estimated:          |    Patchreview:                 
 Blocking:          |   Reproducible:                 
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 This kernel:
 http://build.shr-project.org/shr-
 kms/uImage-2.6.34-oe2+gitr1+dd1225cc08c3375bf80289ac1965c724881b149a-r0
 -om-gta02.bin

 Which is om-gta02-2.6.34 dd1225cc08c3375bf80289ac1965c724881b149a +
 gdrm-2.6.34 + few other patches:
 http://git.openembedded.org/cgit.cgi/openembedded/commit/?id=edc90bdfa987ddc140c72891de4b41ae0bb2ef04

 Suspended with echo mem > /sys/power/state and during resume
 there is about 50s just printing

 [  113.905000] pcf50633 0-0073: Error reading INT registers
 [  113.905000] pcf50633 0-0073: Error reading 5 regs at 2

 very quickly over and over again. Then it resumes fine:
 [  113.910000] s3c2410-wdt: watchdog disabled
 [  113.910000] s3c24xx-nand s3c2440-nand: Tacls=1, 10ns Twrph0=3 30ns,
 Twrph1=2 20ns
 [  113.910000] s3c-i2c s3c2440-i2c: slave address 0x10
 [  113.910000] s3c-i2c s3c2440-i2c: bus frequency set to 97 KHz
 [  113.910000] gta02-pm-bt gta02-pm-bt.0: __gta02_pm_bt_toggle_radio 0
 [  113.960000] pcf50633 0-0073: Error reading INT registers
 [  113.965000] usb usb1: root hub lost power or was reset
 [  114.055000] wake disabled for irq 17
 [  114.095000] Setting mode!
 [  114.200000] Setting base!
 [  114.405000] g_ether gadget: full speed config #1: CDC Ethernet (ECM)
 [  114.420000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 0kHz div=0
 (req: 0kHz). Bus width=0
 [  114.440000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 399kHz div=0
 (req: 400kHz). Bus width=0
 [  114.460000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 399kHz div=0
 (req: 400kHz). Bus width=0
 [  114.465000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 399kHz div=0
 (req: 400kHz). Bus width=0
 [  114.470000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 399kHz div=0
 (req: 400kHz). Bus width=0
 [  114.580000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 399kHz div=0
 (req: 400kHz). Bus width=0
 [  114.585000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 399kHz div=0
 (req: 400kHz). Bus width=0
 [  114.590000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 16373kHz
 div=0 (req: 21000kHz). Bus width=0
 [  114.595000] glamo-mci glamo-mci.0: powered (vdd = 15) clk: 16373kHz
 div=0 (req: 21000kHz). Bus width=2
 [  114.595000] jbt6k74 spi2.0: starting resume: 2
 [  114.615000] entering (old_state=off, new_state=normal)
 [  114.825000] jbt6k74 spi2.0: resumed: 2
 [  114.845000] PM: resume of devices complete after 934.578 msecs
 [  114.855000] Restarting tasks ... done.
 [  115.315000] Setting base!
 [  117.425000] pcf50633 0-0073: usb curlim to 500 mA

 But resume so slow is not usable ie for incomming call.

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/2337>
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