target/linux/ar71xx/patches-4.4/930-chipidea-pullup.patch

   1 Index: linux-4.4.4/drivers/usb/chipidea/ci.h
   2 ===================================================================
   3 --- linux-4.4.4.orig/drivers/usb/chipidea/ci.h  2016-03-31 21:39:23.571126980 +0300
   4 +++ linux-4.4.4/drivers/usb/chipidea/ci.h       2016-03-31 21:39:23.567126980 +0300
   5 @@ -199,6 +199,7 @@
   6   * @in_lpm: if the core in low power mode
   7   * @wakeup_int: if wakeup interrupt occur
   8   * @rev: The revision number for controller
   9 + * @dp_always_pullup: keep dp always pullup at device mode
  10   */
  11  struct ci_hdrc {
  12         struct device                   *dev;
  13 @@ -248,6 +249,7 @@
  14         bool                            in_lpm;
  15         bool                            wakeup_int;
  16         enum ci_revision                rev;
  17 +       bool                            dp_always_pullup;
  18  };
  19
  20  static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
  21 Index: linux-4.4.4/drivers/usb/chipidea/core.c
  22 ===================================================================
  23 --- linux-4.4.4.orig/drivers/usb/chipidea/core.c        2016-03-31 21:39:23.571126980 +0300
  24 +++ linux-4.4.4/drivers/usb/chipidea/core.c     2016-03-31 21:41:33.159130168 +0300
  25 @@ -883,7 +883,7 @@
  26  {
  27         ci_hdrc_gadget_destroy(ci);
  28         ci_hdrc_host_destroy(ci);
  29 -       if (ci->is_otg)
  30 +       if (!ci->dp_always_pullup && ci->roles[CI_ROLE_GADGET])
  31                 ci_hdrc_otg_destroy(ci);
  32  }
  33
  34 @@ -933,6 +933,9 @@
  35         ci->supports_runtime_pm = !!(ci->platdata->flags &
  36                 CI_HDRC_SUPPORTS_RUNTIME_PM);
  37
  38 +       ci->dp_always_pullup = !!(ci->platdata->flags &
  39 +                                        CI_HDRC_DP_ALWAYS_PULLUP);
  40 +
  41         ret = hw_device_init(ci, base);
  42         if (ret < 0) {
  43                 dev_err(dev, "can't initialize hardware\n");
  44 @@ -998,7 +1001,7 @@
  45                 goto deinit_phy;
  46         }
  47
  48 -       if (ci->is_otg && ci->roles[CI_ROLE_GADGET]) {
  49 +       if (!ci->dp_always_pullup && ci->roles[CI_ROLE_GADGET]) {
  50                 ret = ci_hdrc_otg_init(ci);
  51                 if (ret) {
  52                         dev_err(dev, "init otg fails, ret = %d\n", ret);
  53 Index: linux-4.4.4/drivers/usb/chipidea/otg.c
  54 ===================================================================
  55 --- linux-4.4.4.orig/drivers/usb/chipidea/otg.c 2016-03-31 21:39:23.571126980 +0300
  56 +++ linux-4.4.4/drivers/usb/chipidea/otg.c      2016-03-31 21:39:23.567126980 +0300
  57 @@ -95,8 +95,10 @@
  58
  59  void ci_handle_vbus_change(struct ci_hdrc *ci)
  60  {
  61 -       if (!ci->is_otg)
  62 +       if (ci->dp_always_pullup) {
  63 +               usb_gadget_vbus_connect(&ci->gadget);
  64                 return;
  65 +       }
  66
  67         if (hw_read_otgsc(ci, OTGSC_BSV))
  68                 usb_gadget_vbus_connect(&ci->gadget);
  69 Index: linux-4.4.4/include/linux/usb/chipidea.h
  70 ===================================================================
  71 --- linux-4.4.4.orig/include/linux/usb/chipidea.h       2016-03-31 21:39:23.571126980 +0300
  72 +++ linux-4.4.4/include/linux/usb/chipidea.h    2016-03-31 21:39:23.567126980 +0300
  73 @@ -55,6 +55,7 @@
  74  #define CI_HDRC_OVERRIDE_AHB_BURST     BIT(9)
  75  #define CI_HDRC_OVERRIDE_TX_BURST      BIT(10)
  76  #define CI_HDRC_OVERRIDE_RX_BURST      BIT(11)
  77 +#define CI_HDRC_DP_ALWAYS_PULLUP BIT(12)
  78         enum usb_dr_mode        dr_mode;
  79  #define CI_HDRC_CONTROLLER_RESET_EVENT         0
  80  #define CI_HDRC_CONTROLLER_STOPPED_EVENT       1