lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 6 Dec 2017 06:58:13 +0000 From: John Youn <John.Youn@...opsys.com> To: Dinh Nguyen <dinguyen@...nel.org>, "John.Youn@...opsys.com" <John.Youn@...opsys.com> CC: "felipe.balbi@...ux.intel.com" <felipe.balbi@...ux.intel.com>, "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] usb: dwc2: add optional usb ecc reset bit On 11/01/2017 08:35 AM, Dinh Nguyen wrote: > The dwc2 USB controller in Stratix10 has an additional ECC reset bit that > needs to get de-asserted in order for the controller to work properly. > > Signed-off-by: Dinh Nguyen <dinguyen@...nel.org> > --- > drivers/usb/dwc2/core.h | 1 + > drivers/usb/dwc2/platform.c | 10 ++++++++++ > 2 files changed, 11 insertions(+) > > diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h > index 8367d4f9..a4b5f4e 100644 > --- a/drivers/usb/dwc2/core.h > +++ b/drivers/usb/dwc2/core.h > @@ -920,6 +920,7 @@ struct dwc2_hsotg { > int irq; > struct clk *clk; > struct reset_control *reset; > + struct reset_control *reset_ecc; > > unsigned int queuing_high_bandwidth:1; > unsigned int srp_success:1; > diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c > index daf0d37..d466e03 100644 > --- a/drivers/usb/dwc2/platform.c > +++ b/drivers/usb/dwc2/platform.c > @@ -220,6 +220,15 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg) > > reset_control_deassert(hsotg->reset); > > + hsotg->reset_ecc = devm_reset_control_get_optional(hsotg->dev, "dwc2-ecc"); > + if (IS_ERR(hsotg->reset_ecc)) { > + ret = PTR_ERR(hsotg->reset_ecc); > + dev_err(hsotg->dev, "error getting reset control for ecc %d\n", ret); > + return ret; > + } > + > + reset_control_deassert(hsotg->reset_ecc); > + > /* Set default UTMI width */ > hsotg->phyif = GUSBCFG_PHYIF16; > > @@ -318,6 +327,7 @@ static int dwc2_driver_remove(struct platform_device *dev) > dwc2_lowlevel_hw_disable(hsotg); > > reset_control_assert(hsotg->reset); > + reset_control_assert(hsotg->reset_ecc); > > return 0; > } > Acked-by: John Youn <johnyoun@...opsys.com> John
Powered by blists - more mailing lists