USB: host: ohci-at91: merge ohci_at91_of_init in ohci_hcd_at91_drv_probe

As device tree support is now mandatory, merge ohci_at91_of_init() in
ohci_hcd_at91_drv_probe().

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 8e17d5ba26c6594365ff4251501a42c99f9862da..cdd91c551c7b2c350ebe8c879f97c8d598fa7c87 100644 (file)
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -449,16 +449,17 @@ static const struct of_device_id at91_ohci_dt_ids[] = {
 
 MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids);
 
-static int ohci_at91_of_init(struct platform_device *pdev)
+/*-------------------------------------------------------------------------*/
+
+static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
 {
        struct device_node *np = pdev->dev.of_node;
-       int i, gpio, ret;
-       enum of_gpio_flags flags;
        struct at91_usbh_data   *pdata;
-       u32 ports;
-
-       if (!np)
-               return 0;
+       int                     i;
+       int                     gpio;
+       int                     ret;
+       enum of_gpio_flags      flags;
+       u32                     ports;
 
        /* Right now device-tree probed devices don't get dma_mask set.
         * Since shared usb code relies on it, set it here for now.
@@ -489,89 +490,69 @@ static int ohci_at91_of_init(struct platform_device *pdev)
 
        pdev->dev.platform_data = pdata;
 
-       return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
-{
-       struct at91_usbh_data   *pdata;
-       int                     i;
-       int                     gpio;
-       int                     ret;
-
-       ret = ohci_at91_of_init(pdev);
-       if (ret)
-               return ret;
+       at91_for_each_port(i) {
+               /*
+                * do not configure PIO if not in relation with
+                * real USB port on board
+                */
+               if (i >= pdata->ports) {
+                       pdata->vbus_pin[i] = -EINVAL;
+                       pdata->overcurrent_pin[i] = -EINVAL;
+                       break;
+               }
 
-       pdata = dev_get_platdata(&pdev->dev);
+               if (!gpio_is_valid(pdata->vbus_pin[i]))
+                       continue;
+               gpio = pdata->vbus_pin[i];
 
-       if (pdata) {
-               at91_for_each_port(i) {
-                       /*
-                        * do not configure PIO if not in relation with
-                        * real USB port on board
-                        */
-                       if (i >= pdata->ports) {
-                               pdata->vbus_pin[i] = -EINVAL;
-                               pdata->overcurrent_pin[i] = -EINVAL;
-                               break;
-                       }
+               ret = gpio_request(gpio, "ohci_vbus");
+               if (ret) {
+                       dev_err(&pdev->dev,
+                               "can't request vbus gpio %d\n", gpio);
+                       continue;
+               }
+               ret = gpio_direction_output(gpio,
+                                       !pdata->vbus_pin_active_low[i]);
+               if (ret) {
+                       dev_err(&pdev->dev,
+                               "can't put vbus gpio %d as output %d\n",
+                               gpio, !pdata->vbus_pin_active_low[i]);
+                       gpio_free(gpio);
+                       continue;
+               }
 
-                       if (!gpio_is_valid(pdata->vbus_pin[i]))
-                               continue;
-                       gpio = pdata->vbus_pin[i];
+               ohci_at91_usb_set_power(pdata, i, 1);
+       }
 
-                       ret = gpio_request(gpio, "ohci_vbus");
-                       if (ret) {
-                               dev_err(&pdev->dev,
-                                       "can't request vbus gpio %d\n", gpio);
-                               continue;
-                       }
-                       ret = gpio_direction_output(gpio,
-                                               !pdata->vbus_pin_active_low[i]);
-                       if (ret) {
-                               dev_err(&pdev->dev,
-                                       "can't put vbus gpio %d as output %d\n",
-                                       gpio, !pdata->vbus_pin_active_low[i]);
-                               gpio_free(gpio);
-                               continue;
-                       }
+       at91_for_each_port(i) {
+               if (!gpio_is_valid(pdata->overcurrent_pin[i]))
+                       continue;
+               gpio = pdata->overcurrent_pin[i];
 
-                       ohci_at91_usb_set_power(pdata, i, 1);
+               ret = gpio_request(gpio, "ohci_overcurrent");
+               if (ret) {
+                       dev_err(&pdev->dev,
+                               "can't request overcurrent gpio %d\n",
+                               gpio);
+                       continue;
                }
 
-               at91_for_each_port(i) {
-                       if (!gpio_is_valid(pdata->overcurrent_pin[i]))
-                               continue;
-                       gpio = pdata->overcurrent_pin[i];
-
-                       ret = gpio_request(gpio, "ohci_overcurrent");
-                       if (ret) {
-                               dev_err(&pdev->dev,
-                                       "can't request overcurrent gpio %d\n",
-                                       gpio);
-                               continue;
-                       }
-
-                       ret = gpio_direction_input(gpio);
-                       if (ret) {
-                               dev_err(&pdev->dev,
-                                       "can't configure overcurrent gpio %d as input\n",
-                                       gpio);
-                               gpio_free(gpio);
-                               continue;
-                       }
+               ret = gpio_direction_input(gpio);
+               if (ret) {
+                       dev_err(&pdev->dev,
+                               "can't configure overcurrent gpio %d as input\n",
+                               gpio);
+                       gpio_free(gpio);
+                       continue;
+               }
 
-                       ret = request_irq(gpio_to_irq(gpio),
-                                         ohci_hcd_at91_overcurrent_irq,
-                                         IRQF_SHARED, "ohci_overcurrent", pdev);
-                       if (ret) {
-                               gpio_free(gpio);
-                               dev_err(&pdev->dev,
-                                       "can't get gpio IRQ for overcurrent\n");
-                       }
+               ret = request_irq(gpio_to_irq(gpio),
+                                 ohci_hcd_at91_overcurrent_irq,
+                                 IRQF_SHARED, "ohci_overcurrent", pdev);
+               if (ret) {
+                       gpio_free(gpio);
+                       dev_err(&pdev->dev,
+                               "can't get gpio IRQ for overcurrent\n");
                }
        }