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Message-Id: <1475858577-10366-6-git-send-email-ahaslam@baylibre.com>
Date: Fri, 7 Oct 2016 18:42:50 +0200
From: ahaslam@...libre.com
To: gregkh@...uxfoundation.org, robh+dt@...nel.org, nsekhar@...com,
stern@...land.harvard.edu, khilman@...libre.com,
sshtylyov@...mvista.com, david@...hnology.com
Cc: linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Axel Haslam <ahaslam@...libre.com>
Subject: [PATCH/RFT 05/12] USB: ohci-da8xx: Fix probe for devices with no vbus/oci gpio
From: Axel Haslam <ahaslam@...libre.com>
Some boards dont have gpios assigened for vbus or oci.
Allow these boards to enumerate usb without declaring the set_power
and/or the ocic_notify callbacks in platform data.
Signed-off-by: Axel Haslam <ahaslam@...libre.com>
---
drivers/usb/host/ohci-da8xx.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 3c85d6c..9d9f8e3 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -215,7 +215,7 @@ static int ohci_da8xx_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
temp ? "Set" : "Clear", wIndex, "POWER");
if (!pdata->set_power)
- return -EPIPE;
+ return 0;
return pdata->set_power(wIndex, temp) ? -EPIPE : 0;
case USB_PORT_FEAT_C_OVER_CURRENT:
@@ -343,10 +343,12 @@ static int usb_hcd_da8xx_probe(const struct hc_driver *driver,
if (pdata->ocic_notify) {
error = pdata->ocic_notify(ohci_da8xx_ocic_handler);
- if (!error)
- return 0;
+ if (error)
+ goto err_notify;
}
+ return 0;
+err_notify:
usb_remove_hcd(hcd);
err:
usb_put_hcd(hcd);
--
2.7.1
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