target/linux/brcm63xx/patches-4.9/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch

   1 From d13bdf92ec885105cf107183f8464c40e5f3b93b Mon Sep 17 00:00:00 2001
   2 From: Jonas Gorski <jogo@openwrt.org>
   3 Date: Sat, 21 Feb 2015 17:21:59 +0100
   4 Subject: [PATCH 4/6] MIPS: BCM63XX: register lookup for ephy-reset gpio
   5
   6
   7 Signed-off-by: Jonas Gorski <jogo@openwrt.org>
   8 ---
   9  arch/mips/bcm63xx/boards/board_bcm963xx.c          |    2 +-
  10  arch/mips/bcm63xx/boards/board_common.c            |    7 +++--
  11  arch/mips/bcm63xx/gpio.c                           |   32 ++++++++++++++++++++
  12  arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h  |    2 ++
  13  .../mips/include/asm/mach-bcm63xx/board_bcm963xx.h |    5 +--
  14  5 files changed, 42 insertions(+), 6 deletions(-)
  15
  16 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
  17 +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
  18 @@ -55,7 +55,7 @@ static struct board_info __initdata boar
  19         },
  20
  21         .ephy_reset_gpio                = 36,
  22 -       .ephy_reset_gpio_flags          = GPIOF_INIT_HIGH,
  23 +       .ephy_reset_gpio_flags          = GPIO_ACTIVE_LOW,
  24  };
  25  #endif
  26
  27 --- a/arch/mips/bcm63xx/boards/board_common.c
  28 +++ b/arch/mips/bcm63xx/boards/board_common.c
  29 @@ -247,9 +247,10 @@ int __init board_register_devices(void)
  30
  31         platform_device_register(&bcm63xx_gpio_leds);
  32
  33 -       if (board.ephy_reset_gpio && board.ephy_reset_gpio_flags)
  34 -               gpio_request_one(board.ephy_reset_gpio,
  35 -                               board.ephy_reset_gpio_flags, "ephy-reset");
  36 +       if (board.ephy_reset_gpio && board.ephy_reset_gpio_flags) {
  37 +               bcm63xx_gpio_ephy_reset(board.ephy_reset_gpio,
  38 +                                       board.ephy_reset_gpio_flags);
  39 +       }
  40
  41         return 0;
  42  }
  43 --- a/arch/mips/bcm63xx/gpio.c
  44 +++ b/arch/mips/bcm63xx/gpio.c
  45 @@ -8,14 +8,22 @@
  46   * Copyright (C) Jonas Gorski <jogo@openwrt.org>
  47   */
  48
  49 +#include <asm/addrspace.h>
  50 +
  51  #include <linux/kernel.h>
  52  #include <linux/platform_device.h>
  53  #include <linux/gpio/driver.h>
  54 +#include <linux/gpio/machine.h>
  55
  56  #include <bcm63xx_cpu.h>
  57  #include <bcm63xx_gpio.h>
  58  #include <bcm63xx_regs.h>
  59
  60 +static const char * const gpio_chip_labels[] = {
  61 +       "bcm63xx-gpio.0",
  62 +       "bcm63xx-gpio.1",
  63 +};
  64 +
  65  static void __init bcm63xx_gpio_init_one(int id, int dir, int data, int ngpio)
  66  {
  67         struct resource res[2];
  68 @@ -63,3 +71,25 @@ int __init bcm63xx_gpio_init(void)
  69         return 0;
  70
  71  }
  72 +
  73 +static struct gpiod_lookup_table ephy_reset = {
  74 +       .dev_id = "bcm63xx_enet-0",
  75 +       .table = {
  76 +               { /* filled at runtime */ },
  77 +               { },
  78 +       },
  79 +};
  80 +
  81 +
  82 +void bcm63xx_gpio_ephy_reset(int hw_gpio, enum gpio_lookup_flags flags)
  83 +{
  84 +       if (ephy_reset.table[0].chip_label)
  85 +               return;
  86 +
  87 +       ephy_reset.table[0].chip_label = gpio_chip_labels[hw_gpio / 32];
  88 +       ephy_reset.table[0].chip_hwnum = hw_gpio % 32;
  89 +       ephy_reset.table[0].con_id = "reset";
  90 +       ephy_reset.table[0].flags = flags;
  91 +
  92 +       gpiod_add_lookup_table(&ephy_reset);
  93 +}
  94 --- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
  95 +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
  96 @@ -2,9 +2,11 @@
  97  #define BCM63XX_GPIO_H
  98
  99  #include <linux/init.h>
 100 +#include <linux/gpio/machine.h>
 101  #include <bcm63xx_cpu.h>
 102
 103  int __init bcm63xx_gpio_init(void);
 104 +void bcm63xx_gpio_ephy_reset(int hw_gpio, enum gpio_lookup_flags flags);
 105
 106  static inline unsigned long bcm63xx_gpio_count(void)
 107  {
 108 --- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
 109 +++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
 110 @@ -3,6 +3,7 @@
 111
 112  #include <linux/types.h>
 113  #include <linux/gpio.h>
 114 +#include <linux/gpio/machine.h>
 115  #include <linux/leds.h>
 116  #include <bcm63xx_dev_enet.h>
 117  #include <bcm63xx_dev_usb_usbd.h>
 118 @@ -49,8 +50,8 @@ struct board_info {
 119         /* External PHY reset GPIO */
 120         unsigned int ephy_reset_gpio;
 121
 122 -       /* External PHY reset GPIO flags from gpio.h */
 123 -       unsigned long ephy_reset_gpio_flags;
 124 +       /* External PHY reset GPIO flags from gpio/machine.h */
 125 +       enum gpio_lookup_flags ephy_reset_gpio_flags;
 126
 127         /* fallback sprom config */
 128         struct fallback_sprom_data fallback_sprom;