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| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2022-06-15 17:24:32 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-21 16:36:45 +0200 |
| commit | afbd04e66e5d16ca3c7ea2e3c56eca25558eacf3 (patch) | |
| tree | 0014c24a8354aef8a37d27be26b0d9eae88eb972 /drivers/usb/dwc3/core.c | |
| parent | 4a691b8c157a339e35ec71e432edf17a358215e7 (diff) | |
| download | linux-stable-afbd04e66e5d16ca3c7ea2e3c56eca25558eacf3.tar.gz linux-stable-afbd04e66e5d16ca3c7ea2e3c56eca25558eacf3.tar.bz2 linux-stable-afbd04e66e5d16ca3c7ea2e3c56eca25558eacf3.zip | |
usb: dwc3: core: Deprecate GCTL.CORESOFTRESET
Synopsys IP DWC_usb32 and DWC_usb31 version 1.90a and above deprecated
GCTL.CORESOFTRESET. The DRD mode switching flow is updated to remove the
GCTL soft reset. Add version checks to prevent using deprecated setting
in mode switching flow.
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/9df529fde6e55f5508321b6bc26e92848044ef2b.1655338967.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index cb8742f2a4b0..3d716c7fd34e 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -159,7 +159,8 @@ static void __dwc3_set_mode(struct work_struct *work) } /* For DRD host or device mode only */ - if (dwc->desired_dr_role != DWC3_GCTL_PRTCAP_OTG) { + if ((DWC3_IP_IS(DWC3) || DWC3_VER_IS_PRIOR(DWC31, 190A)) && + dwc->desired_dr_role != DWC3_GCTL_PRTCAP_OTG) { reg = dwc3_readl(dwc->regs, DWC3_GCTL); reg |= DWC3_GCTL_CORESOFTRESET; dwc3_writel(dwc->regs, DWC3_GCTL, reg); |