The devm_gpiod_get_optional function does not want the -gpio suffix.
The descriptor based APIs handle active high/low automatically.
The vbus gpios are output, request enable while getting the gpio.
Don't try to get any vbus gpios for ports outside num-ports.
WTF? Big sigh.
Fixes: 054d4b7b577d ("usb: ohci-at91: Use descriptor-based gpio APIs")
Signed-off-by: Peter Rosin <peda@xxxxxxxxxx>
---
drivers/usb/host/ohci-at91.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 1b2e09c32c6b..789fc342b553 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -43,7 +43,6 @@ struct at91_usbh_data {
struct gpio_desc *overcurrent_pin[AT91_MAX_USBH_PORTS];
u8 ports; /* number of ports on root hub */
u8 overcurrent_supported;
- u8 vbus_pin_active_low[AT91_MAX_USBH_PORTS];
u8 overcurrent_status[AT91_MAX_USBH_PORTS];
u8 overcurrent_changed[AT91_MAX_USBH_PORTS];
};
@@ -268,8 +267,7 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int
if (!valid_port(port))
return;
- gpiod_set_value(pdata->vbus_pin[port],
- pdata->vbus_pin_active_low[port] ^ enable);
+ gpiod_set_value(pdata->vbus_pin[port], enable);
}
static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
@@ -277,8 +275,7 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
if (!valid_port(port))
return -EINVAL;
- return gpiod_get_value(pdata->vbus_pin[port]) ^
- pdata->vbus_pin_active_low[port];
+ return gpiod_get_value(pdata->vbus_pin[port]);
}
/*
@@ -535,18 +532,17 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
pdata->ports = ports;
at91_for_each_port(i) {
+ if (i >= pdata->ports)
+ break;
+
pdata->vbus_pin[i] = devm_gpiod_get_optional(&pdev->dev,
- "atmel,vbus-gpio",
- GPIOD_IN);
+ "atmel,vbus",
+ GPIOD_OUT_HIGH);
if (IS_ERR(pdata->vbus_pin[i])) {
err = PTR_ERR(pdata->vbus_pin[i]);
dev_err(&pdev->dev, "unable to claim gpio \"vbus\": %d\n", err);
continue;
}
-
- pdata->vbus_pin_active_low[i] = gpiod_get_value(pdata->vbus_pin[i]);
-
- ohci_at91_usb_set_power(pdata, i, 1);
}
at91_for_each_port(i) {
@@ -555,7 +551,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
pdata->overcurrent_pin[i] =
devm_gpiod_get_optional(&pdev->dev,
- "atmel,oc-gpio", GPIOD_IN);
+ "atmel,oc", GPIOD_IN);
if (IS_ERR(pdata->overcurrent_pin[i])) {
err = PTR_ERR(pdata->overcurrent_pin[i]);
dev_err(&pdev->dev, "unable to claim gpio \"overcurrent\": %d\n", err);
--
2.1.4
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