Re: [PATCH] usb: Add extra delay for device scan

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On Mon, Mar 09, 2020 at 03:20:26PM +0100, Christian Eggers wrote:
> Since b1d9837182, detection of various USB flash drives stopped working.
> While the changes itself look correct, probably the HUB requires some
> "recovery time" between the GET_STATUS commands in order to be able to
> detect devices.
> 
> Our configuration: i.MX6ULL (USB-OTG) with only one port on the root
> HUB. This port is connected to a Microchip USB4916 hub (permanently
> attached). The USB4916 is configured with it's power on defaults which
> means that bPwrOn2PwrGood is set to the maximum (0xFF = 510 ms).
> 
> Fixes: b1d9837182 ("b1d9837182d2b20232234adb36ada2129c3a8152")
> Signed-off-by: Christian Eggers <ceggers@xxxxxxx>
> ---
>  drivers/usb/core/hub.c | 3 +++
>  1 file changed, 3 insertions(+)

Applied with the fixes tag fixed.

Sascha


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