From: Peter Geis <pgwipeout@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>,
Kishon Vijay Abraham I <kishon@ti.com>,
Vinod Koul <vkoul@kernel.org>,
Samuel Holland <samuel@sholland.org>,
Peter Geis <pgwipeout@gmail.com>
Cc: Markus Reichl <m.reichl@fivetechno.de>,
Michael Riesch <michael.riesch@wolfvision.net>,
linux-phy@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4] phy: rockchip-inno-usb2: Return zero after otg sync
Date: Fri, 2 Sep 2022 14:45:42 -0400 [thread overview]
Message-ID: <20220902184543.1234835-1-pgwipeout@gmail.com> (raw)
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>
---
Changelog:
v4
- fix a checkpatch style error (thanks Vinod)
v3
- add missing brackets around new goto
v2
- switch to using our own variable
- add missing goto to skip sync in case of registration failure
---
drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
index 0b1e9337ee8e..e6ededc51523 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];
@@ -1162,13 +1162,15 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
ret = devm_extcon_register_notifier(rphy->dev, rphy->edev,
EXTCON_USB_HOST, &rport->event_nb);
- if (ret)
+ if (ret) {
dev_err(rphy->dev, "register USB HOST notifier failed\n");
+ goto out;
+ }
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);
}
}
--
2.25.1
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next reply other threads:[~2022-09-02 18:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 18:45 Peter Geis [this message]
2022-09-03 13:38 ` [PATCH v4] phy: rockchip-inno-usb2: Return zero after otg sync Samuel Holland
2022-09-04 15:23 ` Vinod Koul
2022-10-05 16:10 ` Chen-Yu Tsai
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