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| author | Tim Harvey <tharvey@gateworks.com> | 2021-07-27 09:11:00 -0700 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2021-08-14 12:39:27 +0800 |
| commit | 590dc51bcaf2cb8bb5a6f3c68269fd660e6fad84 (patch) | |
| tree | bc5682a589e0be742158d1bfad8ce04787db8d77 /tools/perf/scripts/python/stackcollapse.py | |
| parent | bd306fdb4e60bcb1d7ea5431a74092803d3784a6 (diff) | |
arm64: dts: imx8mm-venice-gw7901: add support for USB hub subload
The USB hub has it's reset as GPIO4_IO17 but can be sub-loaded and
VBUS provided by a VBUS regulator with GPIO4_IO2 as the enable and
GPIO1_IO15 as the active-low over-current.
Enable pull-up for GPIO4_IO17 to keep hub out of reset and move VBUS
enable to GPIO4_IO2. Additionally enable pull-up on GPIO1_IO15 so that
if the hub is loaded it never over-currents.
This allows USB to work in both configurations without a device-tree
change.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions