Hi,
Op 27-10-2020 om 22:16 schreef Andy Shevchenko:
On Tue, Oct 27, 2020 at 10:13 PM Ferry Toth <fntoth@xxxxxxxxx> wrote:
Op 22-10-2020 om 15:43 schreef Andy Shevchenko:
On Thu, Oct 22, 2020 at 4:21 PM Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> wrote:
Ferry Toth wrote:
...
There are some fixes to dwc3 in kernel mainline. Is it possible to test
this against linux-next?
I think the best is to wait for v5.10-rc1 and retest.
Can you give a try of v5.10-rc1?
Yes, I just tried:
I booted in host mode, then flip the switch. Gadget come up, go down
once, then come up again and stay up.
I tested mass storage mounts, network works. Sound device is detected by
the host, I didn't actually try to play a sound.
So, big improvement, thanks!
I looks like there have been at least 3 problems:
1) dwc3 was not working in host mode, but not causing an oops. This may
have been caused by platform changes. Andy has provided a fix for this,
dwc3 now working in host mode on 5.9
Rafael took the above mentioned change(s) for v5.10-rcX.
https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=bleeding-edge&id=99aed9227073fb34ce2880cbc7063e04185a65e1
2) dwc3 was causing the oops in gadget mode as referenced in this
thread. The experimental patch from Jack Phan indeed fixes this.
Code here: https://github.com/edison-fw/linux/commits/eds-acpi-5.9.0
3) With the above 2 fixes gadgets work but seem to be powered down
(after 15 sec. or so) and up (after 1 sec.) continuously. No oops, no
errors in journal. The gadgets I enabled are a network, sound and mass
storage. The latter stops working due to going up/down quickly. But my
host shows network/sound appearing/disappearing. Journal of edison shows:
systemd-networkd[525]: usb0: Gained carrier
systemd-networkd[525]: usb0: Gained IPv6LL
systemd-networkd[525]: usb0: Lost carrier
systemd-networkd[525]: usb0: Gained carrier
systemd-networkd[525]: usb0: Gained IPv6LL
systemd-networkd[525]: usb0: Lost carrier
Any ideas how to proceed are highly welcomed!
