target/linux/bcm53xx/patches-3.18/811-USB-bcma-use-separated-function-for-USB-2.0-initiali.patch

   1 From 4aed231f49954114d5ae23e97789e9aa540a0b70 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
   3 Date: Tue, 16 Jun 2015 12:52:07 +0200
   4 Subject: [PATCH] USB: bcma: use separated function for USB 2.0 initialization
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 This will allow adding USB 3.0 (XHCI) support cleanly.
  10
  11 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
  12 ---
  13  drivers/usb/host/bcma-hcd.c | 51 +++++++++++++++++++++++++++++++--------------
  14  1 file changed, 35 insertions(+), 16 deletions(-)
  15
  16 --- a/drivers/usb/host/bcma-hcd.c
  17 +++ b/drivers/usb/host/bcma-hcd.c
  18 @@ -34,6 +34,7 @@ MODULE_DESCRIPTION("Common USB driver fo
  19  MODULE_LICENSE("GPL");
  20
  21  struct bcma_hcd_device {
  22 +       struct bcma_device *core;
  23         struct platform_device *ehci_dev;
  24         struct platform_device *ohci_dev;
  25  };
  26 @@ -293,27 +294,16 @@ err_alloc:
  27         return ERR_PTR(ret);
  28  }
  29
  30 -static int bcma_hcd_probe(struct bcma_device *dev)
  31 +static int bcma_hcd_usb20_init(struct bcma_hcd_device *usb_dev)
  32  {
  33 -       int err;
  34 +       struct bcma_device *dev = usb_dev->core;
  35 +       struct bcma_chipinfo *chipinfo = &dev->bus->chipinfo;
  36         u32 ohci_addr;
  37 -       struct bcma_hcd_device *usb_dev;
  38 -       struct bcma_chipinfo *chipinfo;
  39 -
  40 -       chipinfo = &dev->bus->chipinfo;
  41 -
  42 -       /* TODO: Probably need checks here; is the core connected? */
  43 +       int err;
  44
  45         if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
  46                 return -EOPNOTSUPP;
  47
  48 -       usb_dev = devm_kzalloc(&dev->dev, sizeof(struct bcma_hcd_device),
  49 -                              GFP_KERNEL);
  50 -       if (!usb_dev)
  51 -               return -ENOMEM;
  52 -
  53 -       bcma_hci_platform_power_gpio(dev, true);
  54 -
  55         switch (dev->id.id) {
  56         case BCMA_CORE_NS_USB20:
  57                 bcma_hcd_init_chip_arm(dev);
  58 @@ -346,7 +336,6 @@ static int bcma_hcd_probe(struct bcma_de
  59                 goto err_unregister_ohci_dev;
  60         }
  61
  62 -       bcma_set_drvdata(dev, usb_dev);
  63         return 0;
  64
  65  err_unregister_ohci_dev:
  66 @@ -354,6 +343,36 @@ err_unregister_ohci_dev:
  67         return err;
  68  }
  69
  70 +static int bcma_hcd_probe(struct bcma_device *dev)
  71 +{
  72 +       int err;
  73 +       struct bcma_hcd_device *usb_dev;
  74 +
  75 +       /* TODO: Probably need checks here; is the core connected? */
  76 +
  77 +       usb_dev = devm_kzalloc(&dev->dev, sizeof(struct bcma_hcd_device),
  78 +                              GFP_KERNEL);
  79 +       if (!usb_dev)
  80 +               return -ENOMEM;
  81 +       usb_dev->core = dev;
  82 +
  83 +       bcma_hci_platform_power_gpio(dev, true);
  84 +
  85 +       switch (dev->id.id) {
  86 +       case BCMA_CORE_USB20_HOST:
  87 +       case BCMA_CORE_NS_USB20:
  88 +               err = bcma_hcd_usb20_init(usb_dev);
  89 +               if (err)
  90 +                       return err;
  91 +               break;
  92 +       default:
  93 +               return -ENODEV;
  94 +       }
  95 +
  96 +       bcma_set_drvdata(dev, usb_dev);
  97 +       return 0;
  98 +}
  99 +
 100  static void bcma_hcd_remove(struct bcma_device *dev)
 101  {
 102         struct bcma_hcd_device *usb_dev = bcma_get_drvdata(dev);