target/linux/bcm47xx/patches-4.14/209-b44-register-adm-switch.patch

   1 From b36f694256f41bc71571f467646d015dda128d14 Mon Sep 17 00:00:00 2001
   2 From: Hauke Mehrtens <hauke@hauke-m.de>
   3 Date: Sat, 9 Nov 2013 17:03:59 +0100
   4 Subject: [PATCH 210/210] b44: register adm switch
   5
   6 ---
   7  drivers/net/ethernet/broadcom/b44.c |   57 +++++++++++++++++++++++++++++++++++
   8  drivers/net/ethernet/broadcom/b44.h |    3 ++
   9  2 files changed, 60 insertions(+)
  10
  11 --- a/drivers/net/ethernet/broadcom/b44.c
  12 +++ b/drivers/net/ethernet/broadcom/b44.c
  13 @@ -31,6 +31,8 @@
  14  #include <linux/ssb/ssb.h>
  15  #include <linux/slab.h>
  16  #include <linux/phy.h>
  17 +#include <linux/platform_device.h>
  18 +#include <linux/platform_data/adm6996-gpio.h>
  19
  20  #include <linux/uaccess.h>
  21  #include <asm/io.h>
  22 @@ -2248,6 +2250,69 @@ static void b44_adjust_link(struct net_d
  23         }
  24  }
  25
  26 +#ifdef CONFIG_BCM47XX
  27 +static int b44_register_adm_switch(struct b44 *bp)
  28 +{
  29 +       int gpio;
  30 +       struct platform_device *pdev;
  31 +       struct adm6996_gpio_platform_data adm_data = {0};
  32 +       struct platform_device_info info = {0};
  33 +
  34 +       adm_data.model = ADM6996L;
  35 +       gpio = bcm47xx_nvram_gpio_pin("adm_eecs");
  36 +       if (gpio >= 0)
  37 +               adm_data.eecs = gpio;
  38 +       else
  39 +               adm_data.eecs = 2;
  40 +
  41 +       gpio = bcm47xx_nvram_gpio_pin("adm_eesk");
  42 +       if (gpio >= 0)
  43 +               adm_data.eesk = gpio;
  44 +       else
  45 +               adm_data.eesk = 3;
  46 +
  47 +       gpio = bcm47xx_nvram_gpio_pin("adm_eedi");
  48 +       if (gpio >= 0)
  49 +               adm_data.eedi = gpio;
  50 +       else
  51 +               adm_data.eedi = 4;
  52 +
  53 +       /*
  54 +        * We ignore the "adm_rc" GPIO here. The driver does not use it,
  55 +        * and it conflicts with the Reset button GPIO on the Linksys WRT54GSv1.
  56 +        */
  57 +
  58 +       info.parent = bp->sdev->dev;
  59 +       info.name = "adm6996_gpio";
  60 +       info.id = -1;
  61 +       info.data = &adm_data;
  62 +       info.size_data = sizeof(adm_data);
  63 +
  64 +       if (!bp->adm_switch) {
  65 +               pdev = platform_device_register_full(&info);
  66 +               if (IS_ERR(pdev))
  67 +                       return PTR_ERR(pdev);
  68 +
  69 +               bp->adm_switch = pdev;
  70 +       }
  71 +       return 0;
  72 +}
  73 +static void b44_unregister_adm_switch(struct b44 *bp)
  74 +{
  75 +       if (bp->adm_switch)
  76 +               platform_device_unregister(bp->adm_switch);
  77 +}
  78 +#else
  79 +static int b44_register_adm_switch(struct b44 *bp)
  80 +{
  81 +       return 0;
  82 +}
  83 +static void b44_unregister_adm_switch(struct b44 *bp)
  84 +{
  85 +
  86 +}
  87 +#endif /* CONFIG_BCM47XX */
  88 +
  89  static int b44_register_phy_one(struct b44 *bp)
  90  {
  91         struct mii_bus *mii_bus;
  92 @@ -2283,6 +2348,9 @@ static int b44_register_phy_one(struct b
  93         if (!mdiobus_is_registered_device(bp->mii_bus, bp->phy_addr) &&
  94             (sprom->boardflags_lo & (B44_BOARDFLAG_ROBO | B44_BOARDFLAG_ADM))) {
  95
  96 +               if (sprom->boardflags_lo & B44_BOARDFLAG_ADM)
  97 +                       b44_register_adm_switch(bp);
  98 +
  99                 dev_info(sdev->dev,
 100                          "could not find PHY at %i, use fixed one\n",
 101                          bp->phy_addr);
 102 @@ -2477,6 +2545,7 @@ static void b44_remove_one(struct ssb_de
 103         unregister_netdev(dev);
 104         if (bp->flags & B44_FLAG_EXTERNAL_PHY)
 105                 b44_unregister_phy_one(bp);
 106 +       b44_unregister_adm_switch(bp);
 107         ssb_device_disable(sdev, 0);
 108         ssb_bus_may_powerdown(sdev->bus);
 109         netif_napi_del(&bp->napi);
 110 --- a/drivers/net/ethernet/broadcom/b44.h
 111 +++ b/drivers/net/ethernet/broadcom/b44.h
 112 @@ -408,6 +408,9 @@ struct b44 {
 113         struct mii_bus          *mii_bus;
 114         int                     old_link;
 115         struct mii_if_info      mii_if;
 116 +
 117 +       /* platform device for associated switch */
 118 +       struct platform_device *adm_switch;
 119  };
 120
 121  #endif /* _B44_H */