8 Jan
2021
8 Jan
'21
7:48 p.m.
On Thu, Jan 7, 2021 at 11:49 PM Mathias Kresin dev@kresin.me wrote:
Commit 65dc2e725286 ("usb: dwc2: Update Core Reset programming flow.") revealed that the phy isn't ready immediately after enabling it's clocks. The dwc2_check_core_version() fails and the dwc2 usb driver errors out.
Add a short delay to let the phy get up and running. There isn't any documentation how much time is required, the value was chosen based on tests.
Cc: stable@vger.kernel.org # v5.7+ Signed-off-by: Mathias Kresin dev@kresin.me
Acked-by: Martin Blumenstingl martin.blumenstingl@googlemail.com