Commit ec1fcd7b authored by Enric Balletbo i Serra's avatar Enric Balletbo i Serra Committed by Kishon Vijay Abraham I

phy: rockchip-typec: fall back to working in host-mode if extcon is missing.

Right now the rockchip type-c phy does fail probing when no extcon is
detected. Some boards get the cable-state via the extcon interface and
have this supported, other boards seem to use the fusb302 chip or
another but the driver currently does not seem to utilize the extcon
interface to report the cable-state. And, other, just connect the type-c
to a standard USB-A port so use no controller at all. A missing extcon
shouldn't fail to probe, instead, should just fall back to working in
host-mode if it cannot get the extcon.

Fixes: c301b327 ("arm64: dts: rockchip: add usb3-phy otg-port support for rk3399")
Reported-by: default avatarVicente Bergas <vicencb@gmail.com>
Signed-off-by: default avatarEnric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: default avatarHeiko Stuebner <heiko@sntech.de>
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent 21bf9bc2
......@@ -821,6 +821,9 @@ static int tcphy_get_mode(struct rockchip_typec_phy *tcphy)
u8 mode;
int ret;
if (!edev)
return MODE_DFP_USB;
ufp = extcon_get_state(edev, EXTCON_USB);
dp = extcon_get_state(edev, EXTCON_DISP_DP);
......@@ -1159,10 +1162,14 @@ static int rockchip_typec_phy_probe(struct platform_device *pdev)
tcphy->extcon = extcon_get_edev_by_phandle(dev, 0);
if (IS_ERR(tcphy->extcon)) {
if (PTR_ERR(tcphy->extcon) == -ENODEV) {
tcphy->extcon = NULL;
} else {
if (PTR_ERR(tcphy->extcon) != -EPROBE_DEFER)
dev_err(dev, "Invalid or missing extcon\n");
return PTR_ERR(tcphy->extcon);
}
}
pm_runtime_enable(dev);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment