[Letux-kernel] touchscreen problems

[Andreas Kemnade]

Hi,

with my 4.17.10 kernel touchscreen stopped working and happily I had
the chance to use dmesg.
I found this snippet.

[13969.174560] irq 181: nobody cared (try booting with the "irqpoll" option)
[13969.181793] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.17.10-ak+ #10
[13969.188629] Hardware name: Generic OMAP36xx (Flattened Device Tree)
[13969.195312] [<c0110460>] (unwind_backtrace) from [<c010be00>] (show_stack+0x10/0x14)
[13969.203521] [<c010be00>] (show_stack) from [<c07b8a64>] (dump_stack+0x7c/0x98)
[13969.211181] [<c07b8a64>] (dump_stack) from [<c017850c>] (__report_bad_irq+0x28/0xc0)
[13969.219390] [<c017850c>] (__report_bad_irq) from [<c01787f8>] (note_interrupt+0x190/0x28c)
[13969.228149] [<c01787f8>] (note_interrupt) from [<c0176058>] (handle_irq_event_percpu+0x44/0x54)
[13969.237365] [<c0176058>] (handle_irq_event_percpu) from [<c01760a0>] (handle_irq_event+0x38/0x5c)
[13969.246765] [<c01760a0>] (handle_irq_event) from [<c0178f50>] (handle_simple_irq+0x90/0x98)
[13969.255615] [<c0178f50>] (handle_simple_irq) from [<c0175250>] (generic_handle_irq+0x18/0x28)
[13969.264648] [<c0175250>] (generic_handle_irq) from [<c0437d24>] (omap_gpio_irq_handler+0x108/0x124)
[13969.274230] [<c0437d24>] (omap_gpio_irq_handler) from [<c0175e64>] (__handle_irq_event_percpu+0xb4/0x264)
[13969.284332] [<c0175e64>] (__handle_irq_event_percpu) from [<c017602c>] (handle_irq_event_percpu+0x18/0x54)
[13969.294555] [<c017602c>] (handle_irq_event_percpu) from [<c01760a0>] (handle_irq_event+0x38/0x5c)
[13969.303955] [<c01760a0>] (handle_irq_event) from [<c01797d0>] (handle_level_irq+0xdc/0x110)
[13969.312805] [<c01797d0>] (handle_level_irq) from [<c0175250>] (generic_handle_irq+0x18/0x28)
[13969.321746] [<c0175250>] (generic_handle_irq) from [<c01757fc>] (__handle_domain_irq+0xa0/0xb4)
[13969.330932] [<c01757fc>] (__handle_domain_irq) from [<c0101a0c>] (__irq_svc+0x6c/0xa8)
[13969.339324] Exception stack(0xc0c01ef8 to 0xc0c01f40)
[13969.344665] 1ee0:                                                       00000000 c0c0aa18
[13969.353332] 1f00: 2ec31000 00000050 00000000 c0c9bf04 c0c0a978 00000002 ef7b7488 00000002
[13969.361968] 1f20: 00000050 00000002 0000000f c0c01f48 c0667080 c066708c 60030013 ffffffff
[13969.370666] [<c0101a0c>] (__irq_svc) from [<c066708c>] (cpuidle_enter_state+0x248/0x3a0)
[13969.379241] [<c066708c>] (cpuidle_enter_state) from [<c0159c50>] (do_idle+0x1a0/0x220)
[13969.387603] [<c0159c50>] (do_idle) from [<c0159f3c>] (cpu_startup_entry+0x18/0x1c)
[13969.395629] [<c0159f3c>] (cpu_startup_entry) from [<c0b00d30>] (start_kernel+0x394/0x418)
[13969.404296] handlers:
[13969.406738] [<77f0fa36>] tsc2007_hard_irq [tsc2007] threaded [<1e5d5a85>] tsc2007_soft_irq [tsc2007]
[13969.416412] Disabling IRQ #181

No idea how to reproduce this, but reloading tsc2007 module was enough
to fix. I just got the gta04a5 out of my bag. It was on. And then I
found the touchscreen not working.

Regards,
Andreas
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