I've just switched to the 3.1 mainline kernel from 3.0.4 and am noticing some problems. I'm running a GUMSTIX Overo Fire (OMAP3530), with a GUMSTIX supplied PALO43 dev kit (to bring out USB/LAN/AUDIO/DISPLAY). My config is roughly based on the omap2plus_defconfig with DSS2 built-in (rather than as a module). When entering suspend with "echo mem > /sys/power/state" and waking by typing in to the terminal I get the following: [ 28.749542] PM: suspend of devices complete after 302.398 msecs [ 28.752655] omap_device: omap_hsmmc.1: new worst case deactivate latency 0: 152587 [ 28.753448] PM: late suspend of devices complete after 3.845 msecs [ 28.754272] omap_device: omap_uart.1: new worst case deactivate latency 0: 61035 [ 29.233276] omap_device: omap_uart.0: new worst case activate latency 0: 122070 [ 29.233489] Successfully put all powerdomains to target state [ 29.233886] ------------[ cut here ]------------ [ 29.233947] WARNING: at drivers/video/omap2/dss/dss.c:706 dss_runtime_get+0x60/0x64() [ 29.233978] Modules linked in: [ 29.234008] [<c0019958>] (unwind_backtrace+0x0/0xf8) from [<c003ddfc>] (warn_slowpath_common+0x54/0x64) [ 29.234069] [<c003ddfc>] (warn_slowpath_common+0x54/0x64) from [<c003de28>] (warn_slowpath_null+0x1c/0x24) [ 29.234100] [<c003de28>] (warn_slowpath_null+0x1c/0x24) from [<c01725ac>] (dss_runtime_get+0x60/0x64) [ 29.234130] [<c01725ac>] (dss_runtime_get+0x60/0x64) from [<c0172e10>] (dispc_runtime_resume+0x8/0xae0) [ 29.234161] [<c0172e10>] (dispc_runtime_resume+0x8/0xae0) from [<c01b8770>] (pm_generic_runtime_resume+0x2c/0x40) [ 29.234191] [<c01b8770>] (pm_generic_runtime_resume+0x2c/0x40) from [<c0030eb4>] (_od_resume_noirq+0x44/0x50) [ 29.234252] [<c0030eb4>] (_od_resume_noirq+0x44/0x50) from [<c01b93d0>] (pm_noirq_op.clone.5+0xa0/0x164) [ 29.234283] [<c01b93d0>] (pm_noirq_op.clone.5+0xa0/0x164) from [<c01b94ec>] (dpm_resume_noirq+0x58/0x17c) [ 29.234313] [<c01b94ec>] (dpm_resume_noirq+0x58/0x17c) from [<c0079dc8>] (suspend_devices_and_enter+0x100/0x230) [ 29.234344] [<c0079dc8>] (suspend_devices_and_enter+0x100/0x230) from [<c0079ffc>] (enter_state+0x104/0x124) [ 29.234374] [<c0079ffc>] (enter_state+0x104/0x124) from [<c0079578>] (state_store+0xd8/0x128) [ 29.234436] [<c0079578>] (state_store+0xd8/0x128) from [<c01476f4>] (kobj_attr_store+0x14/0x20) [ 29.234466] [<c01476f4>] (kobj_attr_store+0x14/0x20) from [<c01097c4>] (sysfs_write_file+0x100/0x180) [ 29.234497] [<c01097c4>] (sysfs_write_file+0x100/0x180) from [<c00be53c>] (vfs_write+0xb4/0x148) [ 29.234527] [<c00be53c>] (vfs_write+0xb4/0x148) from [<c00be7c4>] (sys_write+0x40/0x70) [ 29.234558] [<c00be7c4>] (sys_write+0x40/0x70) from [<c0013b80>] (ret_fast_syscall+0x0/0x3c) [ 29.234588] ---[ end trace 1b75b31a2719ed1e ]--- [ 29.236511] PM: early resume of devices complete after 2.838 msecs At which point the screen flickers for a second or so and I get the following: [ 30.069946] omapdss DISPC error: SYNC_LOST, disabling LCD [ 30.371978] omapdss DISPC error: SYNC_LOST, disabling LCD [ 30.711608] omapdss DISPC error: SYNC_LOST, disabling LCD [ 31.058898] omapdss DISPC error: SYNC_LOST, disabling LCD [ 31.406127] omapdss DISPC error: SYNC_LOST, disabling LCD [ 31.753448] omapdss DISPC error: SYNC_LOST, disabling LCD Before the display normally (but not always) recovers. Any subsequent suspends then also gives: [ 32.477813] PM: suspend of devices complete after 310.645 msecs [ 32.481323] Trying disable clock dss1_alwon_fck with 0 usecount [ 32.481323] ------------[ cut here ]------------ [ 32.481384] WARNING: at arch/arm/plat-omap/clock.c:70 clk_disable+0x8c/0x94() [ 32.481384] Modules linked in: [ 32.481445] [<c0019958>] (unwind_backtrace+0x0/0xf8) from [<c003ddfc>] (warn_slowpath_common+0x54/0x64) [ 32.481506] [<c003ddfc>] (warn_slowpath_common+0x54/0x64) from [<c003de28>] (warn_slowpath_null+0x1c/0x24) [ 32.481536] [<c003de28>] (warn_slowpath_null+0x1c/0x24) from [<c002d500>] (clk_disable+0x8c/0x94) [ 32.481567] [<c002d500>] (clk_disable+0x8c/0x94) from [<c002368c>] (_disable_clocks+0x18/0x74) [ 32.481597] [<c002368c>] (_disable_clocks+0x18/0x74) from [<c002414c>] (_idle+0xcc/0x170) [ 32.481628] [<c002414c>] (_idle+0xcc/0x170) from [<c0024968>] (omap_hwmod_idle+0x24/0x40) [ 32.481658] [<c0024968>] (omap_hwmod_idle+0x24/0x40) from [<c003114c>] (omap_device_idle_hwmods+0x28/0x3c) [ 32.481689] [<c003114c>] (omap_device_idle_hwmods+0x28/0x3c) from [<c0030738>] (_omap_device_deactivate+0xc4/0x158) [ 32.481719] [<c0030738>] (_omap_device_deactivate+0xc4/0x158) from [<c0030ee0>] (omap_device_idle+0x20/0x6c) [ 32.481750] [<c0030ee0>] (omap_device_idle+0x20/0x6c) from [<c0030fa8>] (_od_suspend_noirq+0x58/0x68) [ 32.481811] [<c0030fa8>] (_od_suspend_noirq+0x58/0x68) from [<c01b93a4>] (pm_noirq_op.clone.5+0x74/0x164) [ 32.481842] [<c01b93a4>] (pm_noirq_op.clone.5+0x74/0x164) from [<c01b96f0>] (dpm_suspend_noirq+0xe0/0x1c4) [ 32.481872] [<c01b96f0>] (dpm_suspend_noirq+0xe0/0x1c4) from [<c0079d6c>] (suspend_devices_and_enter+0xa4/0x230) [ 32.481903] [<c0079d6c>] (suspend_devices_and_enter+0xa4/0x230) from [<c0079ffc>] (enter_state+0x104/0x124) [ 32.481933] [<c0079ffc>] (enter_state+0x104/0x124) from [<c0079578>] (state_store+0xd8/0x128) [ 32.481994] [<c0079578>] (state_store+0xd8/0x128) from [<c01476f4>] (kobj_attr_store+0x14/0x20) [ 32.482025] [<c01476f4>] (kobj_attr_store+0x14/0x20) from [<c01097c4>] (sysfs_write_file+0x100/0x180) [ 32.482055] [<c01097c4>] (sysfs_write_file+0x100/0x180) from [<c00be53c>] (vfs_write+0xb4/0x148) [ 32.482086] [<c00be53c>] (vfs_write+0xb4/0x148) from [<c00be7c4>] (sys_write+0x40/0x70) [ 32.482147] [<c00be7c4>] (sys_write+0x40/0x70) from [<c0013b80>] (ret_fast_syscall+0x0/0x3c) [ 32.482147] ---[ end trace 1b75b31a2719ed1f ]--- [ 32.482299] omap_device: omapdss_dss.-1: new worst case deactivate latency 0: 976562 [ 32.482513] PM: late suspend of devices complete after 4.669 msecs [ 32.688934] Successfully put all powerdomains to target state [ 32.689300] ------------[ cut here ]------------ [ 32.689361] WARNING: at drivers/video/omap2/dss/dss.c:706 dss_runtime_get+0x60/0x64() [ 32.689361] Modules linked in: [ 32.689422] [<c0019958>] (unwind_backtrace+0x0/0xf8) from [<c003ddfc>] (warn_slowpath_common+0x54/0x64) [ 32.689453] [<c003ddfc>] (warn_slowpath_common+0x54/0x64) from [<c003de28>] (warn_slowpath_null+0x1c/0x24) [ 32.689483] [<c003de28>] (warn_slowpath_null+0x1c/0x24) from [<c01725ac>] (dss_runtime_get+0x60/0x64) [ 32.689514] [<c01725ac>] (dss_runtime_get+0x60/0x64) from [<c0172e10>] (dispc_runtime_resume+0x8/0xae0) [ 32.689544] [<c0172e10>] (dispc_runtime_resume+0x8/0xae0) from [<c01b8770>] (pm_generic_runtime_resume+0x2c/0x40) [ 32.689575] [<c01b8770>] (pm_generic_runtime_resume+0x2c/0x40) from [<c0030eb4>] (_od_resume_noirq+0x44/0x50) [ 32.689605] [<c0030eb4>] (_od_resume_noirq+0x44/0x50) from [<c01b93d0>] (pm_noirq_op.clone.5+0xa0/0x164) [ 32.689636] [<c01b93d0>] (pm_noirq_op.clone.5+0xa0/0x164) from [<c01b94ec>] (dpm_resume_noirq+0x58/0x17c) [ 32.689697] [<c01b94ec>] (dpm_resume_noirq+0x58/0x17c) from [<c0079dc8>] (suspend_devices_and_enter+0x100/0x230) [ 32.689727] [<c0079dc8>] (suspend_devices_and_enter+0x100/0x230) from [<c0079ffc>] (enter_state+0x104/0x124) [ 32.689758] [<c0079ffc>] (enter_state+0x104/0x124) from [<c0079578>] (state_store+0xd8/0x128) [ 32.689788] [<c0079578>] (state_store+0xd8/0x128) from [<c01476f4>] (kobj_attr_store+0x14/0x20) [ 32.689819] [<c01476f4>] (kobj_attr_store+0x14/0x20) from [<c01097c4>] (sysfs_write_file+0x100/0x180) [ 32.689849] [<c01097c4>] (sysfs_write_file+0x100/0x180) from [<c00be53c>] (vfs_write+0xb4/0x148) [ 32.689880] [<c00be53c>] (vfs_write+0xb4/0x148) from [<c00be7c4>] (sys_write+0x40/0x70) [ 32.689910] [<c00be7c4>] (sys_write+0x40/0x70) from [<c0013b80>] (ret_fast_syscall+0x0/0x3c) [ 32.689941] ---[ end trace 1b75b31a2719ed20 ]--- [ 32.692016] PM: early resume of devices complete after 2.899 msecs [ 32.692108] ------------[ cut here ]------------ [ 32.692138] WARNING: at arch/arm/mach-omap2/omap_l3_smx.c:162 omap3_l3_app_irq+0x128/0x164() [ 32.692169] In-band Error seen by MPU at address 0 [ 32.692169] Modules linked in: [ 32.692230] [<c0019958>] (unwind_backtrace+0x0/0xf8) from [<c003ddfc>] (warn_slowpath_common+0x54/0x64) [ 32.692260] [<c003ddfc>] (warn_slowpath_common+0x54/0x64) from [<c003dea0>] (warn_slowpath_fmt+0x30/0x40) [ 32.692291] [<c003dea0>] (warn_slowpath_fmt+0x30/0x40) from [<c002c58c>] (omap3_l3_app_irq+0x128/0x164) [ 32.692321] [<c002c58c>] (omap3_l3_app_irq+0x128/0x164) from [<c007b484>] (handle_irq_event_percpu+0x54/0x1a0) [ 32.692352] [<c007b484>] (handle_irq_event_percpu+0x54/0x1a0) from [<c007b60c>] (handle_irq_event+0x3c/0x5c) [ 32.692382] [<c007b60c>] (handle_irq_event+0x3c/0x5c) from [<c007cedc>] (handle_level_irq+0x90/0x10c) [ 32.692413] [<c007cedc>] (handle_level_irq+0x90/0x10c) from [<c007ae50>] (generic_handle_irq+0x34/0x44) [ 32.692474] [<c007ae50>] (generic_handle_irq+0x34/0x44) from [<c0014a54>] (handle_IRQ+0x38/0x84) [ 32.692504] [<c0014a54>] (handle_IRQ+0x38/0x84) from [<c0013738>] (__irq_svc+0x38/0x80) [ 32.692535] [<c0013738>] (__irq_svc+0x38/0x80) from [<c03487e4>] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 32.692565] [<c03487e4>] (_raw_spin_unlock_irqrestore+0x34/0x44) from [<c007ecf0>] (resume_device_irqs+0x5c/0x7c) [ 32.692596] [<c007ecf0>] (resume_device_irqs+0x5c/0x7c) from [<c0079dc8>] (suspend_devices_and_enter+0x100/0x230) [ 32.692626] [<c0079dc8>] (suspend_devices_and_enter+0x100/0x230) from [<c0079ffc>] (enter_state+0x104/0x124) [ 32.692657] [<c0079ffc>] (enter_state+0x104/0x124) from [<c0079578>] (state_store+0xd8/0x128) [ 32.692687] [<c0079578>] (state_store+0xd8/0x128) from [<c01476f4>] (kobj_attr_store+0x14/0x20) [ 32.692718] [<c01476f4>] (kobj_attr_store+0x14/0x20) from [<c01097c4>] (sysfs_write_file+0x100/0x180) [ 32.692749] [<c01097c4>] (sysfs_write_file+0x100/0x180) from [<c00be53c>] (vfs_write+0xb4/0x148) [ 32.692779] [<c00be53c>] (vfs_write+0xb4/0x148) from [<c00be7c4>] (sys_write+0x40/0x70) [ 32.692810] [<c00be7c4>] (sys_write+0x40/0x70) from [<c0013b80>] (ret_fast_syscall+0x0/0x3c) [ 32.692840] ---[ end trace 1b75b31a2719ed21 ]--- [ 33.045715] PM: resume of devices complete after 351.257 msecs Has anyone else seen these problems? I'm guessing there were some runtime PM changes for DSS2 between 3.0.4 and 3.1? Cheers, Joe -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
