Droid 4 in next-20201120: cpcap-usb-phy.0: could not initialize VBUS or ID IIO:

From: Pavel Machek
Date: Sun Nov 22 2020 - 07:22:24 EST


Hi!

I'm getting this warning during boot:

[ 3.413299] gpio gpiochip1: Persistence not supported for GPIO 0
[ 3.419494] cpcap-usb-phy cpcap-usb-phy.0: could not initialize VBUS or ID IIO: -517
[ 3.427398] ------------[ cut here ]------------
[ 3.432067] WARNING: CPU: 0 PID: 1 at drivers/regulator/core.c:2123 _regulator_put.part.2+0x168/0x17c
[ 3.441406] Modules linked in:
[ 3.444519] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc4-next-20201120-dirty #198
[ 3.452728] Hardware name: Generic OMAP4 (Flattened Device Tree)
[ 3.458801] [<c010db44>] (unwind_backtrace) from [<c0109ec0>] (show_stack+0x10/0x14)
[ 3.466613] [<c0109ec0>] (show_stack) from [<c095561c>] (dump_stack+0xb8/0xd4)
[ 3.473876] [<c095561c>] (dump_stack) from [<c0953208>] (__warn+0xa8/0xd0)
[ 3.480804] [<c0953208>] (__warn) from [<c095327c>] (warn_slowpath_fmt+0x4c/0x98)
[ 3.488311] [<c095327c>] (warn_slowpath_fmt) from [<c0479b90>] (_regulator_put.part.2+0x168/0x17c)
[ 3.497344] [<c0479b90>] (_regulator_put.part.2) from [<c0479bcc>] (regulator_put+0x28/0x38)
[ 3.505828] [<c0479bcc>] (regulator_put) from [<c053a86c>] (release_nodes+0x1a0/0x248)
[ 3.513793] [<c053a86c>] (release_nodes) from [<c05366b8>] (really_probe+0x104/0x3b4)
[ 3.521667] [<c05366b8>] (really_probe) from [<c0536acc>] (driver_probe_device+0x58/0xb4)
[ 3.529907] [<c0536acc>] (driver_probe_device) from [<c0534b34>] (bus_for_each_drv+0x70/0x94)
[ 3.538482] [<c0534b34>] (bus_for_each_drv) from [<c0536540>] (__device_attach+0xbc/0x128)

(and then cpcap does not work). Is my configuration missing something?

Later I get warnings about framedone interrupt not being done (IIRC)
from HDMI audio module, and I have screen freezing in framebuffer.

Any ideas?

Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek

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