target/linux/ramips/patches-3.10/0113-USB-add-OHCI-EHCI-OF-binding.patch

   1 From 40b9d3026ed0b3bcd59f90391195df5b2adabad2 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Sun, 14 Jul 2013 23:34:53 +0200
   4 Subject: [PATCH 19/33] USB: add OHCI/EHCI OF binding
   5
   6 based on f3bc64d6d1f21c1b92d75f233a37b75d77af6963
   7
   8 Signed-off-by: John Crispin <blogic@openwrt.org>
   9 ---
  10  arch/mips/ralink/Kconfig         |    2 ++
  11  drivers/usb/Makefile             |    3 ++-
  12  drivers/usb/host/ehci-platform.c |   19 +++++++++++++++----
  13  drivers/usb/host/ohci-platform.c |   37 ++++++++++++++++++++++++++++++++-----
  14  4 files changed, 51 insertions(+), 10 deletions(-)
  15
  16 --- a/drivers/usb/Makefile
  17 +++ b/drivers/usb/Makefile
  18 @@ -10,6 +10,8 @@ obj-$(CONFIG_USB_DWC3)                += dwc3/
  19
  20  obj-$(CONFIG_USB_MON)          += mon/
  21
  22 +obj-$(CONFIG_USB_PHY)          += phy/
  23 +
  24  obj-$(CONFIG_PCI)              += host/
  25  obj-$(CONFIG_USB_EHCI_HCD)     += host/
  26  obj-$(CONFIG_USB_ISP116X_HCD)  += host/
  27 @@ -44,7 +46,6 @@ obj-$(CONFIG_USB_MICROTEK)    += image/
  28  obj-$(CONFIG_USB_SERIAL)       += serial/
  29
  30  obj-$(CONFIG_USB)              += misc/
  31 -obj-$(CONFIG_USB_PHY)          += phy/
  32  obj-$(CONFIG_EARLY_PRINTK_DBGP)        += early/
  33
  34  obj-$(CONFIG_USB_ATM)          += atm/
  35 --- a/drivers/usb/host/ehci-platform.c
  36 +++ b/drivers/usb/host/ehci-platform.c
  37 @@ -29,6 +29,8 @@
  38  #include <linux/usb.h>
  39  #include <linux/usb/hcd.h>
  40  #include <linux/usb/ehci_pdriver.h>
  41 +#include <linux/usb/phy.h>
  42 +#include <linux/usb/otg.h>
  43
  44  #include "ehci.h"
  45
  46 @@ -118,6 +120,15 @@ static int ehci_platform_probe(struct pl
  47         hcd->rsrc_start = res_mem->start;
  48         hcd->rsrc_len = resource_size(res_mem);
  49
  50 +#ifdef CONFIG_USB_PHY
  51 +       hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
  52 +       if (!IS_ERR_OR_NULL(hcd->phy)) {
  53 +               otg_set_host(hcd->phy->otg,
  54 +                               &hcd->self);
  55 +               usb_phy_init(hcd->phy);
  56 +       }
  57 +#endif
  58 +
  59         hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
  60         if (IS_ERR(hcd->regs)) {
  61                 err = PTR_ERR(hcd->regs);
  62 @@ -155,6 +166,9 @@ static int ehci_platform_remove(struct p
  63         if (pdata == &ehci_platform_defaults)
  64                 dev->dev.platform_data = NULL;
  65
  66 +       if (pdata == &ehci_platform_defaults)
  67 +               dev->dev.platform_data = NULL;
  68 +
  69         return 0;
  70  }
  71
  72 @@ -199,9 +213,8 @@ static int ehci_platform_resume(struct d
  73  #define ehci_platform_resume   NULL
  74  #endif /* CONFIG_PM */
  75
  76 -static const struct of_device_id vt8500_ehci_ids[] = {
  77 -       { .compatible = "via,vt8500-ehci", },
  78 -       { .compatible = "wm,prizm-ehci", },
  79 +static const struct of_device_id ralink_ehci_ids[] = {
  80 +       { .compatible = "ralink,rt3xxx-ehci", },
  81         {}
  82  };
  83
  84 @@ -225,7 +238,7 @@ static struct platform_driver ehci_platf
  85                 .owner  = THIS_MODULE,
  86                 .name   = "ehci-platform",
  87                 .pm     = &ehci_platform_pm_ops,
  88 -               .of_match_table = of_match_ptr(vt8500_ehci_ids),
  89 +               .of_match_table = of_match_ptr(ralink_ehci_ids),
  90         }
  91  };
  92
  93 --- a/drivers/usb/host/ohci-platform.c
  94 +++ b/drivers/usb/host/ohci-platform.c
  95 @@ -16,6 +16,10 @@
  96  #include <linux/err.h>
  97  #include <linux/platform_device.h>
  98  #include <linux/usb/ohci_pdriver.h>
  99 +#include <linux/dma-mapping.h>
 100 +#include <linux/of.h>
 101 +
 102 +static struct usb_ohci_pdata ohci_platform_defaults;
 103
 104  static int ohci_platform_reset(struct usb_hcd *hcd)
 105  {
 106 @@ -88,14 +92,22 @@ static int ohci_platform_probe(struct pl
 107  {
 108         struct usb_hcd *hcd;
 109         struct resource *res_mem;
 110 -       struct usb_ohci_pdata *pdata = dev->dev.platform_data;
 111 +       struct usb_ohci_pdata *pdata;
 112         int irq;
 113         int err = -ENOMEM;
 114
 115 -       if (!pdata) {
 116 -               WARN_ON(1);
 117 -               return -ENODEV;
 118 -       }
 119 +       /*
 120 +        * use reasonable defaults so platforms don't have to provide these.
 121 +        * with DT probing on ARM, none of these are set.
 122 +        */
 123 +       if (!dev->dev.platform_data)
 124 +               dev->dev.platform_data = &ohci_platform_defaults;
 125 +       if (!dev->dev.dma_mask)
 126 +               dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
 127 +       if (!dev->dev.coherent_dma_mask)
 128 +               dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 129 +
 130 +       pdata = dev->dev.platform_data;
 131
 132         if (usb_disabled())
 133                 return -ENODEV;
 134 @@ -128,6 +140,12 @@ static int ohci_platform_probe(struct pl
 135         hcd->rsrc_start = res_mem->start;
 136         hcd->rsrc_len = resource_size(res_mem);
 137
 138 +#ifdef CONFIG_USB_PHY
 139 +       hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
 140 +       if (!IS_ERR_OR_NULL(hcd->phy))
 141 +               usb_phy_init(hcd->phy);
 142 +#endif
 143 +
 144         hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
 145         if (IS_ERR(hcd->regs)) {
 146                 err = PTR_ERR(hcd->regs);
 147 @@ -162,6 +180,9 @@ static int ohci_platform_remove(struct p
 148         if (pdata->power_off)
 149                 pdata->power_off(dev);
 150
 151 +       if (pdata == &ohci_platform_defaults)
 152 +               dev->dev.platform_data = NULL;
 153 +
 154         return 0;
 155  }
 156
 157 @@ -201,6 +222,11 @@ static int ohci_platform_resume(struct d
 158  #define ohci_platform_resume   NULL
 159  #endif /* CONFIG_PM */
 160
 161 +static const struct of_device_id ralink_ohci_ids[] = {
 162 +       { .compatible = "ralink,rt3xxx-ohci", },
 163 +       {}
 164 +};
 165 +
 166  static const struct platform_device_id ohci_platform_table[] = {
 167         { "ohci-platform", 0 },
 168         { }
 169 @@ -221,5 +247,6 @@ static struct platform_driver ohci_platf
 170                 .owner  = THIS_MODULE,
 171                 .name   = "ohci-platform",
 172                 .pm     = &ohci_platform_pm_ops,
 173 +               .of_match_table = of_match_ptr(ralink_ohci_ids),
 174         }
 175  };