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