Messages in this thread | | | From | Peter Geis <> | Date | Wed, 24 Aug 2022 12:17:39 +0200 | Subject | Re: [PATCH v2] phy: rockchip-inno-usb2: Return zero after otg sync |
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On Wed, Aug 24, 2022 at 7:33 AM Michael Riesch <michael.riesch@wolfvision.net> wrote: > > Hi Peter, > > On 8/23/22 16:47, Peter Geis wrote: > > The otg sync state patch reuses the ret variable, but fails to set it to > > zero after use. This leads to a situation when the otg port is in > > peripheral mode where the otg phy aborts halfway through setup. It also > > fails to account for a failure to register the extcon notifier. Fix this > > by using our own variable and skipping otg sync in case of failure. > > > > Fixes: 8dc60f8da22f ("phy: rockchip-inno-usb2: Sync initial otg state") > > > > Reported-by: Markus Reichl <m.reichl@fivetechno.de> > > Reported-by: Michael Riesch <michael.riesch@wolfvision.net> > > Signed-off-by: Peter Geis <pgwipeout@gmail.com> > > Tested-by: Michael Riesch <michael.riesch@wolfvision.net> > > Tested-by: Markus Reichl <m.reichl@fivetechno.de> > > --- > > drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 7 ++++--- > > 1 file changed, 4 insertions(+), 3 deletions(-) > > > > diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > > index 0b1e9337ee8e..d579a22c61df 100644 > > --- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > > +++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > > @@ -1124,7 +1124,7 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy, > > struct rockchip_usb2phy_port *rport, > > struct device_node *child_np) > > { > > - int ret; > > + int ret, id; > > > > rport->port_id = USB2PHY_PORT_OTG; > > rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_OTG]; > > @@ -1164,11 +1164,12 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy, > > EXTCON_USB_HOST, &rport->event_nb); > > if (ret) > > This needs braces, right? > > if (ret) { > > dev_err(rphy->dev, "register USB HOST notifier failed\n"); > > + goto out; > > } > > With the braces the patch works as expected.
Yup, thanks for that. I hate working without access to my hardware.
> > Thanks and best regards, > Michael > > > > > if (!of_property_read_bool(rphy->dev->of_node, "extcon")) { > > /* do initial sync of usb state */ > > - ret = property_enabled(rphy->grf, &rport->port_cfg->utmi_id); > > - extcon_set_state_sync(rphy->edev, EXTCON_USB_HOST, !ret); > > + id = property_enabled(rphy->grf, &rport->port_cfg->utmi_id); > > + extcon_set_state_sync(rphy->edev, EXTCON_USB_HOST, !id); > > } > > } > >
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