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| author | Artur Petrosyan <Arthur.Petrosyan@synopsys.com> | 2021-04-16 16:46:50 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-22 11:55:33 +0200 |
| commit | c363af9ce3db7e374b37e0509ccf31f8da4da404 (patch) | |
| tree | 9181246f5120f10d1c4e6531f93d73e4c63cb343 /drivers/usb/dwc2 | |
| parent | 7e25c20df40c88958dde73d79ba99e94ad99573e (diff) | |
| download | linux-c363af9ce3db7e374b37e0509ccf31f8da4da404.tar.gz linux-c363af9ce3db7e374b37e0509ccf31f8da4da404.tar.bz2 linux-c363af9ce3db7e374b37e0509ccf31f8da4da404.zip | |
usb: dwc2: Update exit hibernation when port reset is asserted
No need to check for "DWC2_POWER_DOWN_PARAM_HIBERNATION" param
as "hsotg->hibernated" flag is already enough for exiting from
hibernation mode.
- Removes checking of "DWC2_POWER_DOWN_PARAM_HIBERNATION" param.
- For code readability Hibernation exit code moved after
debug message print.
- Added "dwc2_exit_hibernation()" function error checking.
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Link: https://lore.kernel.org/r/20210416124651.51C8DA005C@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 04a1b53d65af..cda3f931195d 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -3668,9 +3668,17 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, break; case USB_PORT_FEAT_RESET: - if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION && - hsotg->hibernated) - dwc2_exit_hibernation(hsotg, 0, 1, 1); + dev_dbg(hsotg->dev, + "SetPortFeature - USB_PORT_FEAT_RESET\n"); + + hprt0 = dwc2_read_hprt0(hsotg); + + if (hsotg->hibernated) { + retval = dwc2_exit_hibernation(hsotg, 0, 1, 1); + if (retval) + dev_err(hsotg->dev, + "exit hibernation failed\n"); + } if (hsotg->in_ppd) { retval = dwc2_exit_partial_power_down(hsotg, 1, @@ -3684,9 +3692,6 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended) dwc2_host_exit_clock_gating(hsotg, 0); - hprt0 = dwc2_read_hprt0(hsotg); - dev_dbg(hsotg->dev, - "SetPortFeature - USB_PORT_FEAT_RESET\n"); pcgctl = dwc2_readl(hsotg, PCGCTL); pcgctl &= ~(PCGCTL_ENBL_SLEEP_GATING | PCGCTL_STOPPCLK); dwc2_writel(hsotg, pcgctl, PCGCTL); |