On Fri, Nov 4, 2011 at 2:54 AM, Kevin Hilman <khilman@xxxxxx> wrote: > > Hello, > > Using Linus' master branch, I was testing PM functionality on OMAP3/4 > and noticed that the MMC driver is now rather noisy during suspend on > OMAP3[1], but seems to work. > > On OMAP4, MMC seems to prevent suspend/resume all together. I haven't > found the root cause, but know that by not buidling the MMC driver, I > have working suspend/resume again on OMAP4. > > Venkat, can you investigate this? > > For OMAP4, please use my for_3.2/omap4-pm branch which has the OMAP4 > MPUSS retention support from Santosh. > With 4430SDP I observed abort on accessing I2C registers probably i2c clock is not turned ON? echo mem > /sys/power/state [ 41.971649] PM: Preparing system for mem sleep [ 41.976440] Freezing user space processes ... (elapsed 0.02 seconds) done. [ 42.002838] Freezing remaining freezable tasks ... (elapsed 0.02 seconds) done. [ 42.033172] PM: Entering mem sleep [ 42.043212] omap_hsmmc omap_hsmmc.4: context was not lost [ 42.043212] omap_hsmmc omap_hsmmc.4: enabled [ 42.043212] mmc2: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0 [ 42.060852] omap_hsmmc omap_hsmmc.4: Set clock to 0Hz [ 42.066192] omap_device: omap_hsmmc.0: new worst case activate latency 0: 5310058 [ 42.074035] omap_hsmmc omap_hsmmc.0: context was not lost [ 42.074035] omap_hsmmc omap_hsmmc.0: enabled [ 42.074035] mmc1: starting CMD7 arg 00000000 flags 00000000 [ 42.090026] omap_hsmmc omap_hsmmc.0: mmc1: CMD7, argument 0x00000000 [ 42.096679] omap_hsmmc omap_hsmmc.0: IRQ Status is 1 [ 42.096710] mmc1: req done (CMD7): 0: 00000000 00000000 00000000 00000000 [ 42.109008] mmc1: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0 [ 42.116668] omap_hsmmc omap_hsmmc.0: Set clock to 0Hz [ 42.122009] omap_hsmmc omap_hsmmc.1: context was not lost [ 42.127655] omap_hsmmc omap_hsmmc.1: enabled [ 42.132171] mmc0: starting CMD7 arg 00000000 flags 00000000 [ 42.138000] omap_hsmmc omap_hsmmc.1: mmc0: CMD7, argument 0x00000000 [ 42.144653] omap_hsmmc omap_hsmmc.1: IRQ Status is 1 [ 42.144653] mmc0: req done (CMD7): 0: 00000000 00000000 00000000 00000000 [ 42.159301] mmc0: starting CMD5 arg 00018000 flags 0000001d [ 42.165130] omap_hsmmc omap_hsmmc.1: mmc0: CMD5, argument 0x00018000 [ 42.171783] omap_hsmmc omap_hsmmc.1: IRQ Status is 1 [ 42.176971] omap_hsmmc omap_hsmmc.1: IRQ Status is 2 [ 42.176971] mmc0: req done (CMD5): 0: 00000600 00000000 00000000 00000000 [ 42.189270] mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0 [ 42.196929] TWL6030 IRQ 0x0 0x8 0x0 [ 42.203765] omap_hsmmc omap_hsmmc.1: Set clock to 0Hz [ 42.203765] PM: suspend of devices complete after 166.717 msecs [ 42.216003] omap_hsmmc omap_hsmmc.4: disabled [ 42.221801] omap_hsmmc omap_hsmmc.0: disabled [ 42.226379] omap_hsmmc omap_hsmmc.1: disabled [ 42.230926] PM: late suspend of devices complete after 14.923 msecs [ 42.237609] Disabling non-boot CPUs ... [ 42.241790] Unhandled fault: imprecise external abort (0x1406) at 0x4005a000 [ 42.241851] Internal error: : 1406 [#1] SMP [ 42.253509] Modules linked in: [ 42.256713] CPU: 0 Not tainted (3.1.0-00165-g97d4c96-dirty #12) [ 42.256713] PC is at omap_i2c_wait_for_bb+0x88/0xa8 [ 42.268341] LR is at omap_i2c_wait_for_bb+0x10/0xa8 [ 42.273437] pc : [<c0351d84>] lr : [<c0351d0c>] psr: 40000013 [ 42.273437] sp : ef9dfee8 ip : ffff7e58 fp : ef8f2c00 [ 42.273437] r10: ffff7e58 r9 : c035249c r8 : 00000001 [ 42.285430] r7 : c0c0c43c r6 : c063e080 r5 : c063e080 r4 : ef8f2c00 [ 42.285430] r3 : 00000000 r2 : 00000028 r1 : 00000028 r0 : 00000080 [ 42.304504] Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 42.304504] Control: 10c53c7d Table: af10404a DAC: 00000017 [ 42.304504] Process twl6030-irq (pid: 251, stack limit = 0xef9de2f8) [ 42.304504] Stack: (0xef9dfee8 to 0xef9e0000) [ 42.329284] fee0: ef8f2ca8 00000000 c063e080 c03524c8 ef9dfef8 00000001 [ 42.337829] ff00: ef997460 ef8f2c70 c02b7ce4 ef8f2c60 00000000 c063e080 c0c0c43c 00000001 [ 42.337829] ff20: c035249c ffff7e58 00000004 c0350188 ef9dff84 00000000 c0c0c454 00000068 [ 42.354888] ff40: c0c0c3cc c0c0c3c4 c0c0c434 c02b7d2c 00000000 00000008 00000000 c0c0c640 [ 42.363433] ff60: ef9dff84 c0c0c640 c047cba4 00000027 00000030 00000000 00000000 c02b8fc8 [ 42.363433] ff80: 60000013 000000d0 ef833d18 00000002 00000027 c02b8e88 00000000 00000000 [ 42.380493] ffa0: 00000000 c0073628 00000001 00000000 00000027 00000000 00000000 dead4ead [ 42.380493] ffc0: ffffffff ffffffff c06d4a74 00000000 00000000 c05628f4 ef9dffd8 ef9dffd8 [ 42.380493] ffe0: ef833d18 ef833d18 c00735a0 c0015358 00000013 c0015358 64946642 61340b38 [ 42.380493] [<c0351d84>] (omap_i2c_wait_for_bb+0x88/0xa8) from [<c03524c8>] (omap_i2c_xfer+0x2c/0x388) [ 42.415832] [<c03524c8>] (omap_i2c_xfer+0x2c/0x388) from [<c0350188>] (i2c_transfer+0xa8/0x118) [ 42.415832] [<c0350188>] (i2c_transfer+0xa8/0x118) from [<c02b7d2c>] (twl_i2c_write+0xa8/0x124) [ 42.433990] [<c02b7d2c>] (twl_i2c_write+0xa8/0x124) from [<c02b8fc8>] (twl6030_irq_thread+0x140/0x1a4) [ 42.443725] [<c02b8fc8>] (twl6030_irq_thread+0x140/0x1a4) from [<c0073628>] (kthread+0x88/0x90) [ 42.443725] [<c0073628>] (kthread+0x88/0x90) from [<c0015358>] (kernel_thread_exit+0x0/0x8) [ 42.461517] Code: e1a00312 e19010bc e3110a01 1afffff1 (e3a00000) [ 42.467895] ---[ end trace bfbd839e645b5cd8 ]--- [ 42.473388] CPU1: shutdown -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
