Messages in this thread | | | Date | Wed, 24 Aug 2022 07:33:10 +0200 | Subject | Re: [PATCH v2] phy: rockchip-inno-usb2: Return zero after otg sync | From | Michael Riesch <> |
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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.
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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