usb: ohci-at91: use descriptor-based gpio APIs correctly
The gpiod_get* function family does not want the -gpio suffix.
Use devm_gpiod_get_index_optional instead of devm_gpiod_get_optional.
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: 054d4b7b57
("usb: ohci-at91: Use descriptor-based gpio APIs")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
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674aea07e3
Коммит
8f12dc2449
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@ -43,7 +43,6 @@ struct at91_usbh_data {
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struct gpio_desc *overcurrent_pin[AT91_MAX_USBH_PORTS];
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u8 ports; /* number of ports on root hub */
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u8 overcurrent_supported;
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u8 vbus_pin_active_low[AT91_MAX_USBH_PORTS];
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u8 overcurrent_status[AT91_MAX_USBH_PORTS];
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u8 overcurrent_changed[AT91_MAX_USBH_PORTS];
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};
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@ -266,8 +265,7 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int
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if (!valid_port(port))
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return;
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gpiod_set_value(pdata->vbus_pin[port],
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pdata->vbus_pin_active_low[port] ^ enable);
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gpiod_set_value(pdata->vbus_pin[port], enable);
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}
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static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
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@ -275,8 +273,7 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
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if (!valid_port(port))
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return -EINVAL;
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return gpiod_get_value(pdata->vbus_pin[port]) ^
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pdata->vbus_pin_active_low[port];
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return gpiod_get_value(pdata->vbus_pin[port]);
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}
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/*
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@ -533,18 +530,17 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
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pdata->ports = ports;
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at91_for_each_port(i) {
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pdata->vbus_pin[i] = devm_gpiod_get_optional(&pdev->dev,
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"atmel,vbus-gpio",
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GPIOD_IN);
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if (i >= pdata->ports)
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break;
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pdata->vbus_pin[i] =
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devm_gpiod_get_index_optional(&pdev->dev, "atmel,vbus",
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i, GPIOD_OUT_HIGH);
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if (IS_ERR(pdata->vbus_pin[i])) {
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err = PTR_ERR(pdata->vbus_pin[i]);
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dev_err(&pdev->dev, "unable to claim gpio \"vbus\": %d\n", err);
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continue;
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}
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pdata->vbus_pin_active_low[i] = gpiod_get_value(pdata->vbus_pin[i]);
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ohci_at91_usb_set_power(pdata, i, 1);
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}
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at91_for_each_port(i) {
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@ -552,8 +548,8 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
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break;
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pdata->overcurrent_pin[i] =
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devm_gpiod_get_optional(&pdev->dev,
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"atmel,oc-gpio", GPIOD_IN);
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devm_gpiod_get_index_optional(&pdev->dev, "atmel,oc",
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i, GPIOD_IN);
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if (IS_ERR(pdata->overcurrent_pin[i])) {
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err = PTR_ERR(pdata->overcurrent_pin[i]);
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dev_err(&pdev->dev, "unable to claim gpio \"overcurrent\": %d\n", err);
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