diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-02-18 14:26:31 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-19 15:08:07 +0100 |
| commit | 98bba546e82d7785b9560c6b141b73ac8d3d820f (patch) | |
| tree | 0dc68d0cc0f110fd27dacfd3a7a665ddf03a85b8 /drivers/usb | |
| parent | cdc-wdm: pass return value of recover_from_urb_loss (diff) | |
| download | linux-98bba546e82d7785b9560c6b141b73ac8d3d820f.tar.xz linux-98bba546e82d7785b9560c6b141b73ac8d3d820f.zip | |
usb: dwc3: drd: Defer probe if extcon device is not found
In case the "linux,extcon-name" property is defined but device itself
is not ready, defer the probe.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc3/drd.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c index 869725d15c74..726100d1ac0d 100644 --- a/drivers/usb/dwc3/drd.c +++ b/drivers/usb/dwc3/drd.c @@ -457,8 +457,13 @@ static struct extcon_dev *dwc3_get_extcon(struct dwc3 *dwc) * This device property is for kernel internal use only and * is expected to be set by the glue code. */ - if (device_property_read_string(dev, "linux,extcon-name", &name) == 0) - return extcon_get_extcon_dev(name); + if (device_property_read_string(dev, "linux,extcon-name", &name) == 0) { + edev = extcon_get_extcon_dev(name); + if (!edev) + return ERR_PTR(-EPROBE_DEFER); + + return edev; + } np_phy = of_parse_phandle(dev->of_node, "phys", 0); np_conn = of_graph_get_remote_node(np_phy, -1, -1); |