Hi Rui, Thank you for the patches. On Thu, Mar 28, 2019 at 02:25:11PM +0000, Rui Miguel Silva wrote: > This series is a continuation of the > [PATCH v14 00/13] media: staging/imx7: add i.MX7 media driver [0] series. > All code patches and bindings are already merged, missing only this > dts patches. I'm testing this on a custom i.MX7D board, with an IMX296 CSI-2 sensor, and the system deadlocks when I start video capture: [ 112.426341] capture_start_streaming: vb2 queue ec8029a0 priv ec802840 imxmd ec7aa444 [ 112.434499] imx_media_pipeline_set_stream: media device ec7aa444 [ 112.442392] INFO: trying to register non-static key. [ 112.447372] the code is fine but needs lockdep annotation. [ 112.452861] turning off the locking correctness validator. [ 112.458357] CPU: 0 PID: 213 Comm: yavta Not tainted 5.0.0-00078-g97d0c7aa3256 #66 [ 112.465842] Hardware name: Freescale i.MX7 Dual (Device Tree) [ 112.471616] [<c0111e20>] (unwind_backtrace) from [<c010cd64>] (show_stack+0x10/0x14) [ 112.479371] [<c010cd64>] (show_stack) from [<c0b32838>] (dump_stack+0xb0/0xe8) [ 112.486609] [<c0b32838>] (dump_stack) from [<c0174000>] (register_lock_class+0x550/0x5c8) [ 112.494798] [<c0174000>] (register_lock_class) from [<c0176ec4>] (__lock_acquire+0x6c/0x1904) [ 112.503334] [<c0176ec4>] (__lock_acquire) from [<c01790cc>] (lock_acquire+0xcc/0x1ec) [ 112.511175] [<c01790cc>] (lock_acquire) from [<c0b535a0>] (_raw_spin_lock+0x28/0x38) [ 112.518928] [<c0b535a0>] (_raw_spin_lock) from [<c0b4ed14>] (__mutex_lock+0xc8/0x900) [ 112.526766] [<c0b4ed14>] (__mutex_lock) from [<c0b4f568>] (mutex_lock_nested+0x1c/0x24) [ 112.534782] [<c0b4f568>] (mutex_lock_nested) from [<c0803cd4>] (imx_media_pipeline_set_stream+0x50/0x110) [ 112.544361] [<c0803cd4>] (imx_media_pipeline_set_stream) from [<c0805bb8>] (capture_start_streaming+0x38/0xe0) [ 112.554376] [<c0805bb8>] (capture_start_streaming) from [<c077a228>] (vb2_start_streaming+0x5c/0x150) [ 112.563604] [<c077a228>] (vb2_start_streaming) from [<c077be20>] (vb2_core_streamon+0x7c/0x14c) [ 112.572313] [<c077be20>] (vb2_core_streamon) from [<c07608fc>] (__video_do_ioctl+0x210/0x44c) [ 112.580846] [<c07608fc>] (__video_do_ioctl) from [<c0760f18>] (video_usercopy+0x294/0x7e0) [ 112.589122] [<c0760f18>] (video_usercopy) from [<c028a2a4>] (do_vfs_ioctl+0x9c/0x9ec) [ 112.596963] [<c028a2a4>] (do_vfs_ioctl) from [<c028ac28>] (ksys_ioctl+0x34/0x60) [ 112.604369] [<c028ac28>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x28) [ 112.612030] Exception stack(0xed237fa8 to 0xed237ff0) [ 112.617089] 7fa0: 00000000 be8bca2c 00000003 40045612 be8bca2c 00000000 [ 112.625275] 7fc0: 00000000 be8bca2c 00000000 00000036 000142e8 c0445609 00000000 00014324 [ 112.633457] 7fe0: 00025014 be8bca00 00012fc8 b6f5bd50 [ 136.211443] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [yavta:213] [ 136.218241] Modules linked in: ath3k imx296 evbug [ 136.222960] irq event stamp: 35493 [ 136.226374] hardirqs last enabled at (35493): [<c0b53818>] _raw_spin_unlock_irq+0x24/0x2c [ 136.234648] hardirqs last disabled at (35492): [<c0b4d028>] __schedule+0xb0/0xa0c [ 136.242141] softirqs last enabled at (35490): [<c0102434>] __do_softirq+0x2ac/0x4f8 [ 136.249896] softirqs last disabled at (35481): [<c012a6ec>] irq_exit+0xbc/0x194 [ 136.257214] CPU: 0 PID: 213 Comm: yavta Not tainted 5.0.0-00078-g97d0c7aa3256 #66 [ 136.264702] Hardware name: Freescale i.MX7 Dual (Device Tree) [ 136.270458] PC is at do_raw_spin_lock+0x70/0x114 [ 136.275083] LR is at do_raw_spin_lock+0xd8/0x114 [ 136.279707] pc : [<c017c8e0>] lr : [<c017c948>] psr: 80000013 [ 136.285980] sp : ed237cf8 ip : c0f76670 fp : c110cb94 [ 136.291212] r10: ec7aa540 r9 : ec7aa560 r8 : c18cb110 [ 136.296444] r7 : c11c9ca8 r6 : 00000001 r5 : ffffe000 r4 : ec7aa540 [ 136.302978] r3 : 0000a444 r2 : 0000ec7a r1 : 00000000 r0 : 00000000 [ 136.309513] Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 136.316656] Control: 10c5387d Table: ad28406a DAC: 00000051 [ 136.322410] CPU: 0 PID: 213 Comm: yavta Not tainted 5.0.0-00078-g97d0c7aa3256 #66 [ 136.329898] Hardware name: Freescale i.MX7 Dual (Device Tree) [ 136.335660] [<c0111e20>] (unwind_backtrace) from [<c010cd64>] (show_stack+0x10/0x14) [ 136.343415] [<c010cd64>] (show_stack) from [<c0b32838>] (dump_stack+0xb0/0xe8) [ 136.350653] [<c0b32838>] (dump_stack) from [<c01d7f30>] (watchdog_timer_fn+0x234/0x2c8) [ 136.358674] [<c01d7f30>] (watchdog_timer_fn) from [<c01a813c>] (__hrtimer_run_queues+0x190/0x578) [ 136.367561] [<c01a813c>] (__hrtimer_run_queues) from [<c01a9430>] (hrtimer_interrupt+0x128/0x2c4) [ 136.376449] [<c01a9430>] (hrtimer_interrupt) from [<c07e90d8>] (arch_timer_handler_virt+0x2c/0x34) [ 136.385423] [<c07e90d8>] (arch_timer_handler_virt) from [<c018b244>] (handle_percpu_devid_irq+0xc8/0x344) [ 136.395004] [<c018b244>] (handle_percpu_devid_irq) from [<c0185c50>] (generic_handle_irq+0x20/0x34) [ 136.404063] [<c0185c50>] (generic_handle_irq) from [<c0186238>] (__handle_domain_irq+0x50/0xb8) [ 136.412779] [<c0186238>] (__handle_domain_irq) from [<c04c2870>] (gic_handle_irq+0x4c/0xa8) [ 136.421144] [<c04c2870>] (gic_handle_irq) from [<c01019f0>] (__irq_svc+0x70/0x98) [ 136.428633] Exception stack(0xed237ca8 to 0xed237cf0) [ 136.433695] 7ca0: 00000000 00000000 0000ec7a 0000a444 ec7aa540 ffffe000 [ 136.441884] 7cc0: 00000001 c11c9ca8 c18cb110 ec7aa560 ec7aa540 c110cb94 c0f76670 ed237cf8 [ 136.450069] 7ce0: c017c948 c017c8e0 80000013 ffffffff [ 136.455133] [<c01019f0>] (__irq_svc) from [<c017c8e0>] (do_raw_spin_lock+0x70/0x114) [ 136.462888] [<c017c8e0>] (do_raw_spin_lock) from [<c0b4ed14>] (__mutex_lock+0xc8/0x900) [ 136.470903] [<c0b4ed14>] (__mutex_lock) from [<c0b4f568>] (mutex_lock_nested+0x1c/0x24) [ 136.478919] [<c0b4f568>] (mutex_lock_nested) from [<c0803cd4>] (imx_media_pipeline_set_stream+0x50/0x110) [ 136.488499] [<c0803cd4>] (imx_media_pipeline_set_stream) from [<c0805bb8>] (capture_start_streaming+0x38/0xe0) [ 136.498513] [<c0805bb8>] (capture_start_streaming) from [<c077a228>] (vb2_start_streaming+0x5c/0x150) [ 136.507745] [<c077a228>] (vb2_start_streaming) from [<c077be20>] (vb2_core_streamon+0x7c/0x14c) [ 136.516455] [<c077be20>] (vb2_core_streamon) from [<c07608fc>] (__video_do_ioctl+0x210/0x44c) [ 136.524991] [<c07608fc>] (__video_do_ioctl) from [<c0760f18>] (video_usercopy+0x294/0x7e0) [ 136.533267] [<c0760f18>] (video_usercopy) from [<c028a2a4>] (do_vfs_ioctl+0x9c/0x9ec) [ 136.541110] [<c028a2a4>] (do_vfs_ioctl) from [<c028ac28>] (ksys_ioctl+0x34/0x60) [ 136.548518] [<c028ac28>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x28) [ 136.556180] Exception stack(0xed237fa8 to 0xed237ff0) [ 136.561242] 7fa0: 00000000 be8bca2c 00000003 40045612 be8bca2c 00000000 [ 136.569430] 7fc0: 00000000 be8bca2c 00000000 00000036 000142e8 c0445609 00000000 00014324 [ 136.577616] 7fe0: 00025014 be8bca00 00012fc8 b6f5bd50 Have you tested this on mainline ? :-) I investigated the issue a bit, and it seems that the various files in the drivers play around with platform_drvdata in a way that isn't very clean, nor very correct. > The main difference from the version in the previous series is as > commented by Laurent: > - split of dtsi and dts in 2 patches > - push endpoints to imx7s.dtsi > > Cheers, > Rui > > v2->v3: > Laurent Pinchart: > - Add label to csi-mux > - Disable csi-mux in imx7s > - enable it in warp dts > - add port@0 to mux > > v1->v2: > Shawn Guo: > - sort alphabetically > - hyphen for node name > - indent align clocks > - send status to end of property list > > Rui Miguel Silva (5): > ARM: dts: imx7s: add mipi phy power domain > ARM: dts: imx7s: add multiplexer controls > ARM: dts: imx7s: Add video mux, csi and mipi_csi > ARM: dts: imx7s-warp: add csi and mipi_csi node > ARM: dts: imx7s-warp: add ov2680 sensor node > > arch/arm/boot/dts/imx7s-warp.dts | 59 ++++++++++++++++++++ > arch/arm/boot/dts/imx7s.dtsi | 92 +++++++++++++++++++++++++++++++- > 2 files changed, 149 insertions(+), 2 deletions(-) -- Regards, Laurent Pinchart
