summaryrefslogtreecommitdiff
path: root/drivers/usb/renesas_usbhs/common.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/renesas_usbhs/common.c')
-rw-r--r--drivers/usb/renesas_usbhs/common.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 371478704899..4cf77d3c3bd2 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -363,6 +363,7 @@ static void usbhsc_hotplug(struct usbhs_priv *priv)
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
int id;
int enable;
+ int cable;
int ret;
/*
@@ -376,6 +377,16 @@ static void usbhsc_hotplug(struct usbhs_priv *priv)
id = usbhs_platform_call(priv, get_id, pdev);
if (enable && !mod) {
+ if (priv->edev) {
+ cable = extcon_get_cable_state(priv->edev, "USB-HOST");
+ if ((cable > 0 && id != USBHS_HOST) ||
+ (!cable && id != USBHS_GADGET)) {
+ dev_info(&pdev->dev,
+ "USB cable plugged in doesn't match the selected role!\n");
+ return;
+ }
+ }
+
ret = usbhs_mod_change(priv, id);
if (ret < 0)
return;
@@ -514,6 +525,12 @@ static int usbhs_probe(struct platform_device *pdev)
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
+ if (of_property_read_bool(pdev->dev.of_node, "extcon")) {
+ priv->edev = extcon_get_edev_by_phandle(&pdev->dev, 0);
+ if (IS_ERR(priv->edev))
+ return PTR_ERR(priv->edev);
+ }
+
/*
* care platform info
*/
@@ -615,7 +632,7 @@ static int usbhs_probe(struct platform_device *pdev)
*/
ret = usbhs_platform_call(priv, hardware_init, pdev);
if (ret < 0) {
- dev_err(&pdev->dev, "platform prove failed.\n");
+ dev_err(&pdev->dev, "platform init failed.\n");
goto probe_end_mod_exit;
}
@@ -632,16 +649,12 @@ static int usbhs_probe(struct platform_device *pdev)
/*
* manual call notify_hotplug for cold plug
*/
- ret = usbhsc_drvcllbck_notify_hotplug(pdev);
- if (ret < 0)
- goto probe_end_call_remove;
+ usbhsc_drvcllbck_notify_hotplug(pdev);
dev_info(&pdev->dev, "probed\n");
return ret;
-probe_end_call_remove:
- usbhs_platform_call(priv, hardware_exit, pdev);
probe_end_mod_exit:
usbhs_mod_remove(priv);
probe_end_fifo_exit: