Dear All,
On 18.10.2022 17:27, Stefan Agner wrote:
Hi Johan,
On 2022-09-06 14:07, Johan Hovold wrote:
From: Johan Hovold johan+linaro@kernel.org
commit 6000b8d900cd5f52fbcd0776d0cc396e88c8c2ea upstream.
The dwc3 driver manages its PHYs itself so the USB core PHY management needs to be disabled.
Use the struct xhci_plat_priv hack added by commits 46034a999c07 ("usb: host: xhci-plat: add platform data support") and f768e718911e ("usb: host: xhci-plat: add priv quirk for skip PHY initialization") to propagate the setting for now.
[adding also Samsung/ODROID device tree authors Krzysztof and Marek]
For some reason, this commit seems to break detection of the USB to S-ATA controller on ODROID-HC1 devices (Exynos 5422).
We have a known to work OS release of v5.15.60, and known to not be working of v5.15.67. By reverting suspicious commits, I was able to pinpoint the problem to this particular commit.
From what I understand, on that particular hardware the S-ATA controller
power is controlled via the V-BUS signal VBUSCTRL_U2 (Schematic [1]). Presumably this signal is no longer controlled with this change.
This came up in our HAOS issue #2153 [2].
I confirm this issue and I've managed to reproduce it locally. The mainline is also affected. I will try to prepare a proper patch soon.
Best regards