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 diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
  17 index d347282..0b4d0e8 100644
  18 --- a/drivers/usb/host/bcma-hcd.c
  19 +++ b/drivers/usb/host/bcma-hcd.c
  20 @@ -34,6 +34,7 @@ MODULE_DESCRIPTION("Common USB driver for BCMA Bus");
  21  MODULE_LICENSE("GPL");
  22
  23  struct bcma_hcd_device {
  24 +       struct bcma_device *core;
  25         struct platform_device *ehci_dev;
  26         struct platform_device *ohci_dev;
  27  };
  28 @@ -293,27 +294,16 @@ err_alloc:
  29         return ERR_PTR(ret);
  30  }
  31
  32 -static int bcma_hcd_probe(struct bcma_device *dev)
  33 +static int bcma_hcd_usb20_init(struct bcma_hcd_device *usb_dev)
  34  {
  35 -       int err;
  36 +       struct bcma_device *dev = usb_dev->core;
  37 +       struct bcma_chipinfo *chipinfo = &dev->bus->chipinfo;
  38         u32 ohci_addr;
  39 -       struct bcma_hcd_device *usb_dev;
  40 -       struct bcma_chipinfo *chipinfo;
  41 -
  42 -       chipinfo = &dev->bus->chipinfo;
  43 -
  44 -       /* TODO: Probably need checks here; is the core connected? */
  45 +       int err;
  46
  47         if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
  48                 return -EOPNOTSUPP;
  49
  50 -       usb_dev = devm_kzalloc(&dev->dev, sizeof(struct bcma_hcd_device),
  51 -                              GFP_KERNEL);
  52 -       if (!usb_dev)
  53 -               return -ENOMEM;
  54 -
  55 -       bcma_hci_platform_power_gpio(dev, true);
  56 -
  57         switch (dev->id.id) {
  58         case BCMA_CORE_NS_USB20:
  59                 bcma_hcd_init_chip_arm(dev);
  60 @@ -346,7 +336,6 @@ static int bcma_hcd_probe(struct bcma_device *dev)
  61                 goto err_unregister_ohci_dev;
  62         }
  63
  64 -       bcma_set_drvdata(dev, usb_dev);
  65         return 0;
  66
  67  err_unregister_ohci_dev:
  68 @@ -354,6 +343,36 @@ err_unregister_ohci_dev:
  69         return err;
  70  }
  71
  72 +static int bcma_hcd_probe(struct bcma_device *dev)
  73 +{
  74 +       int err;
  75 +       struct bcma_hcd_device *usb_dev;
  76 +
  77 +       /* TODO: Probably need checks here; is the core connected? */
  78 +
  79 +       usb_dev = devm_kzalloc(&dev->dev, sizeof(struct bcma_hcd_device),
  80 +                              GFP_KERNEL);
  81 +       if (!usb_dev)
  82 +               return -ENOMEM;
  83 +       usb_dev->core = dev;
  84 +
  85 +       bcma_hci_platform_power_gpio(dev, true);
  86 +
  87 +       switch (dev->id.id) {
  88 +       case BCMA_CORE_USB20_HOST:
  89 +       case BCMA_CORE_NS_USB20:
  90 +               err = bcma_hcd_usb20_init(usb_dev);
  91 +               if (err)
  92 +                       return err;
  93 +               break;
  94 +       default:
  95 +               return -ENODEV;
  96 +       }
  97 +
  98 +       bcma_set_drvdata(dev, usb_dev);
  99 +       return 0;
 100 +}
 101 +
 102  static void bcma_hcd_remove(struct bcma_device *dev)
 103  {
 104         struct bcma_hcd_device *usb_dev = bcma_get_drvdata(dev);
 105 --
 106 1.8.4.5
 107