diff options
| author | Artur Petrosyan <Arthur.Petrosyan@synopsys.com> | 2021-04-16 15:48:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-22 12:55:34 +0300 |
| commit | 0fdf3c5e06aafdded33c9adab8a6f3bb1fe688f9 (patch) | |
| tree | a0a35fa61e61c2437571cf7d1f2019b5bde68680 /drivers/usb/dwc2 | |
| parent | 0112b7ce68ea85d4e88a5baf32d007c1e3856661 (diff) | |
| download | linux-0fdf3c5e06aafdded33c9adab8a6f3bb1fe688f9.tar.xz | |
usb: dwc2: Get rid of useless error checks in suspend interrupt
Squashed from Douglas Anderson's suggested commit
"usb: dwc2: Get rid of useless error checks for
hibernation/partial power down"
- After this commit there should never be any
case where dwc2_enter_partial_power_down() and
dwc2_enter_hibernation() are called when
'params.power_down' is not correct. Get rid of
the pile of error checking.
- As part of this cleanup some of the error messages
not to have __func__ in them. That's not needed
for dev_err() calls since they already have the
device name as part of the message.
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20210416124843.9EDCDA005D@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/core.c | 3 | ||||
| -rw-r--r-- | drivers/usb/dwc2/core_intr.c | 18 |
2 files changed, 7 insertions, 14 deletions
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index 576c262dba55..6f70ab9577b4 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -391,9 +391,6 @@ static bool dwc2_iddig_filter_enabled(struct dwc2_hsotg *hsotg) */ int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg, int is_host) { - if (hsotg->params.power_down != DWC2_POWER_DOWN_PARAM_HIBERNATION) - return -ENOTSUPP; - if (is_host) return dwc2_host_enter_hibernation(hsotg); else diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index 470458ac664b..a5ab03808da6 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -535,13 +535,10 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg) switch (hsotg->params.power_down) { case DWC2_POWER_DOWN_PARAM_PARTIAL: ret = dwc2_enter_partial_power_down(hsotg); - if (ret) { - if (ret != -ENOTSUPP) - dev_err(hsotg->dev, - "%s: enter partial_power_down failed\n", - __func__); - goto skip_power_saving; - } + if (ret) + dev_err(hsotg->dev, + "enter partial_power_down failed\n"); + udelay(100); /* Ask phy to be suspended */ @@ -550,10 +547,9 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg) break; case DWC2_POWER_DOWN_PARAM_HIBERNATION: ret = dwc2_enter_hibernation(hsotg, 0); - if (ret && ret != -ENOTSUPP) + if (ret) dev_err(hsotg->dev, - "%s: enter hibernation failed\n", - __func__); + "enter hibernation failed\n"); break; case DWC2_POWER_DOWN_PARAM_NONE: /* @@ -562,7 +558,7 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg) */ dwc2_gadget_enter_clock_gating(hsotg); } -skip_power_saving: + /* * Change to L2 (suspend) state before releasing * spinlock |