target/linux/brcm2708/patches-4.14/950-0147-dwc_otg-don-t-unconditionally-force-host-mode-in-dwc.patch

   1 From 71f116335e08f82f73efec6da10893f545455b5f Mon Sep 17 00:00:00 2001
   2 From: P33M <p33m@github.com>
   3 Date: Tue, 9 Jan 2018 15:16:35 +0000
   4 Subject: [PATCH 147/454] dwc_otg: don't unconditionally force host mode in
   5  dwc_otg_cil_init()
   6
   7 Add the ability to disable force_host_mode for those that want to use
   8 dwc_otg in both device and host modes.
   9 ---
  10  drivers/usb/host/dwc_otg/dwc_otg_cil.c    | 7 ++++++-
  11  drivers/usb/host/dwc_otg/dwc_otg_driver.c | 7 +++++++
  12  2 files changed, 13 insertions(+), 1 deletion(-)
  13
  14 --- a/drivers/usb/host/dwc_otg/dwc_otg_cil.c
  15 +++ b/drivers/usb/host/dwc_otg/dwc_otg_cil.c
  16 @@ -61,6 +61,8 @@
  17  #include "dwc_otg_regs.h"
  18  #include "dwc_otg_cil.h"
  19
  20 +extern bool cil_force_host;
  21 +
  22  static int dwc_otg_setup_params(dwc_otg_core_if_t * core_if);
  23
  24  /**
  25 @@ -192,7 +194,10 @@ dwc_otg_core_if_t *dwc_otg_cil_init(cons
  26                 core_if->hptxfsiz.d32 =
  27                 DWC_READ_REG32(&core_if->core_global_regs->hptxfsiz);
  28                 gusbcfg.d32 =  DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
  29 -               gusbcfg.b.force_host_mode = 1;
  30 +               if (cil_force_host)
  31 +                       gusbcfg.b.force_host_mode = 1;
  32 +               else
  33 +                       gusbcfg.b.force_host_mode = 0;
  34                 DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gusbcfg.d32);
  35                 dwc_mdelay(100);
  36         }
  37 --- a/drivers/usb/host/dwc_otg/dwc_otg_driver.c
  38 +++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.c
  39 @@ -247,6 +247,9 @@ bool fiq_fsm_enable = true;
  40  //Bulk split-transaction NAK holdoff in microframes
  41  uint16_t nak_holdoff = 8;
  42
  43 +//Force host mode during CIL re-init
  44 +bool cil_force_host = true;
  45 +
  46  unsigned short fiq_fsm_mask = 0x0F;
  47
  48  unsigned short int_ep_interval_min = 0;
  49 @@ -1403,6 +1406,10 @@ MODULE_PARM_DESC(int_ep_interval_min, "C
  50                                         "0..1 = Use endpoint default\n"
  51                                         "2..n = Minimum interval n microframes. Use powers of 2.\n");
  52
  53 +module_param(cil_force_host, bool, 0644);
  54 +MODULE_PARM_DESC(cil_force_host, "On a connector-ID status change, "
  55 +                                       "force Host Mode regardless of OTG state.");
  56 +
  57  /** @page "Module Parameters"
  58   *
  59   * The following parameters may be specified when starting the module.