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| author |   Amelie Delaunay <amelie.delaunay@foss.st.com> | 2022-06-22 18:07:17 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-24 13:37:27 +0200 |
| commit | db638c6500abaffb8f7770b2a69c40d003d54ae1 (patch) | |
| tree | c682d5274238cb80d0d9b7f5bc084bc42810fefe /arch/powerpc/kernel/prom_init.c | |
| parent | usb: musb: mpfs: Fix error codes in probe() (diff) | |
| download | wireguard-linux-db638c6500abaffb8f7770b2a69c40d003d54ae1.tar.xz wireguard-linux-db638c6500abaffb8f7770b2a69c40d003d54ae1.zip | |
usb: dwc2: gadget: remove D+ pull-up while no vbus with usb-role-switch
When using usb-role-switch, D+ pull-up is set as soon as DTCL_SFTDISCON is
cleared, whatever the vbus valid signal state is. The pull-up should not
be set when vbus isn't present (this is determined by the drd controller).
This patch ensures that B-Session (so Peripheral role + vbus valid signal)
is valid before clearing the DCTL_SFTDISCON bit when role switch is used.
Keep original behavior when usb-role-switch isn't used.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20220622160717.314580-1-fabrice.gasnier@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
0 files changed, 0 insertions, 0 deletions