On 4/23/24 10:24 AM, Ravi Gunasekaran wrote:
From: Aswath Govindraju <[email protected]>
When the device port is in a low power state [U3/L2/Not Connected],
accesses to usb device registers may take a long time. This could lead to
potential core hang when the controller registers are accessed after the
port is disabled by setting DEVDS field. Setting the fast register access
bit ensures that the PHY clock is keeping up in active state.
Therefore, set fast access bit to ensure the accesses to device registers
are quick even in low power states.
Signed-off-by: Aswath Govindraju <[email protected]>
Signed-off-by: Ravi Gunasekaran <[email protected]>
Reviewed-by: Roger Quadros <[email protected]>
---
v1 was posted and was reviewed as well. But it did not get merged.
This change is present in upstream linux kernel as well.
Upstream Linux kernel commit: b5148d946f45 ("usb: cdns3: gadget: set fast access
bit")
This commit ^ should be mentioned in the commit message.
With that fixed:
Reviewed-by: Marek Vasut <[email protected]>
Thanks !
