Hello Philippe,
I found this thread after several hours spent in debugging why USB host is
not detecting new devices on a custom board using the iMX6ULL Colibri
SoM.
My best workaround at the moment is:
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -56,7 +58,7 @@ static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data = {
};
static const struct ci_hdrc_imx_platform_flag imx6ul_usb_data = {
- .flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+ .flags = //CI_HDRC_SUPPORTS_RUNTIME_PM |
CI_HDRC_TURN_VBUS_EARLY_ON |
CI_HDRC_DISABLE_DEVICE_STREAMING,
};
so it's equivalent to yours, but hard-coded.
I haven't found any follow-up patches from you, so I'm wondering whether
you have made any progress on this issue.
As I see it, a quirk in the driver would make sense. What needs to be
sorted out is how to enable it from device tree.
I think a DT boolean as you propose would do, but with a name describing
the hardware aspects of it ("chipidea,vbus-detection-is-broken"?) and not
the driver behaviour.
Otherwise looking for the "toradex,colibri-imx6ul" prefix in the top-level
/compatible strings seems doable. I don't know how acceptable this is from
a driver maintainer's point of view though.
Best regards,
Luca
