[PATCH v2 0/2] reset/usb: Add reset status
Ley Foon Tan
ley.foon.tan at intel.com
Tue Dec 24 09:23:43 CET 2019
In Cyclone 5 SoC platform, the first USB probing is failed but second
probing is success. DWC2 driver read gsnpsid register right after de-assert
reset, but controller is not ready yet and it returns gsnpsid 0.
Polling reset status after de-assert reset to solve the issue.
This patchset also add .rst_status callback function to reset-socfpga driver
to support this get reset status feature.
v1->v2:
- Change from constant delay to poll for reset status;
- Add reset status callback function.
History:
v1: https://patchwork.ozlabs.org/patch/1214841/
Ley Foon Tan (2):
reset: socfpga: Add reset status callback function
usb: dwc2: Add polling for reset status
drivers/reset/reset-socfpga.c | 12 ++++++++++++
drivers/usb/host/dwc2.c | 10 +++++++++-
2 files changed, 21 insertions(+), 1 deletion(-)
--
2.19.0
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