target/linux/brcm47xx/patches-4.19/161-MIPS-BCM47XX-Enable-USB-power-on-Netgear-WNDR3400v3.patch

   1 From 17cb62255ef8f6b6ac270024204a8fa65537b333 Mon Sep 17 00:00:00 2001
   2 From: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
   3 Date: Sun, 19 Aug 2018 21:23:14 +0300
   4 Subject: [PATCH] MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3
   5
   6 Setting GPIO 21 high seems to be required to enable power to USB ports
   7 on the WNDR3400v3. As there is already similar code for WNR3500L,
   8 make the existing USB power GPIO code generic and use that.
   9
  10 Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
  11 ---
  12  arch/mips/bcm47xx/workarounds.c | 8 +++++---
  13  1 file changed, 5 insertions(+), 3 deletions(-)
  14
  15 --- a/arch/mips/bcm47xx/workarounds.c
  16 +++ b/arch/mips/bcm47xx/workarounds.c
  17 @@ -5,9 +5,8 @@
  18  #include <bcm47xx_board.h>
  19  #include <bcm47xx.h>
  20
  21 -static void __init bcm47xx_workarounds_netgear_wnr3500l(void)
  22 +static void __init bcm47xx_workarounds_enable_usb_power(int usb_power)
  23  {
  24 -       const int usb_power = 12;
  25         int err;
  26
  27         err = gpio_request_one(usb_power, GPIOF_OUT_INIT_HIGH, "usb_power");
  28 @@ -23,7 +22,10 @@ void __init bcm47xx_workarounds(void)
  29
  30         switch (board) {
  31         case BCM47XX_BOARD_NETGEAR_WNR3500L:
  32 -               bcm47xx_workarounds_netgear_wnr3500l();
  33 +               bcm47xx_workarounds_enable_usb_power(12);
  34 +               break;
  35 +       case BCM47XX_BOARD_NETGEAR_WNDR3400_V3:
  36 +               bcm47xx_workarounds_enable_usb_power(21);
  37                 break;
  38         default:
  39                 /* No workaround(s) needed */