diff options
| author | Matthias Kaehlcke <mka@chromium.org> | 2022-08-05 20:19:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-18 21:10:59 +0200 |
| commit | 1bcafc0498038a5a2ce5a9b888c39f1c32242cec (patch) | |
| tree | bbb3a40b7fe39aec35c4f105be3a817c4d5dd511 /drivers/usb/misc | |
| parent | usb: dwc3: gadget: Avoid duplicate requests to enable Run/Stop (diff) | |
| download | linux-1bcafc0498038a5a2ce5a9b888c39f1c32242cec.tar.xz linux-1bcafc0498038a5a2ce5a9b888c39f1c32242cec.zip | |
usb: misc: onboard_usb_hub: Drop reset delay in onboard_hub_power_off()
onboard_hub_power_off() currently has a delay after asserting the
reset of the hub. There is already a delay in onboard_hub_power_on()
before de-asserting the reset, which ensures that the reset is
asserted for the required time, so the delay in _power_off() is not
needed.
Skip the reset GPIO check before calling gpiod_set_value_cansleep(),
the function returns early when the GPIO descriptor is NULL.
Reviewed-By: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/20220805111836.1.Id5a4dc0a2c046236116693aa55672295513a0f2a@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc')
| -rw-r--r-- | drivers/usb/misc/onboard_usb_hub.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c index d1df153e7f5a..d63c63942af1 100644 --- a/drivers/usb/misc/onboard_usb_hub.c +++ b/drivers/usb/misc/onboard_usb_hub.c @@ -71,10 +71,7 @@ static int onboard_hub_power_off(struct onboard_hub *hub) { int err; - if (hub->reset_gpio) { - gpiod_set_value_cansleep(hub->reset_gpio, 1); - fsleep(hub->pdata->reset_us); - } + gpiod_set_value_cansleep(hub->reset_gpio, 1); err = regulator_disable(hub->vdd); if (err) { |