arch/arm/mach-tegra/board-paz00.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * arch/arm/mach-tegra/board-paz00.c
   4  *
   5  * Copyright (C) 2011 Marc Dietrich <marvin24@gmx.de>
   6  *
   7  * Based on board-harmony.c
   8  * Copyright (C) 2010 Google, Inc.
   9  */
  10
  11 #include <linux/err.h>
  12 #include <linux/gpio/machine.h>
  13 #include <linux/gpio/property.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/printk.h>
  16 #include <linux/property.h>
  17
  18 #include "board.h"
  19
  20 static const struct software_node tegra_gpiochip_node = {
  21         .name   = "tegra-gpio",
  22 };
  23
  24 static const struct property_entry wifi_rfkill_prop[] __initconst = {
  25         PROPERTY_ENTRY_STRING("name", "wifi_rfkill"),
  26         PROPERTY_ENTRY_STRING("type", "wlan"),
  27         PROPERTY_ENTRY_GPIO("reset-gpios",
  28                             &tegra_gpiochip_node, 25, GPIO_ACTIVE_HIGH),
  29         PROPERTY_ENTRY_GPIO("shutdown-gpios",
  30                             &tegra_gpiochip_node, 85, GPIO_ACTIVE_HIGH),
  31         { }
  32 };
  33
  34 static const struct platform_device_info wifi_rfkill_info __initconst = {
  35         .name           = "rfkill_gpio",
  36         .id             = PLATFORM_DEVID_NONE,
  37         .properties     = wifi_rfkill_prop,
  38 };
  39
  40 void __init tegra_paz00_wifikill_init(void)
  41 {
  42         struct platform_device *pd;
  43         int err;
  44
  45         err = software_node_register(&tegra_gpiochip_node);
  46         if (err) {
  47                 pr_err("failed to register %s node: %d\n",
  48                        tegra_gpiochip_node.name, err);
  49                 return;
  50         }
  51
  52         pd = platform_device_register_full(&wifi_rfkill_info);
  53         err = PTR_ERR_OR_ZERO(pd);
  54         if (err)
  55                 pr_err("failed to register WiFi rfkill device: %d\n", err);
  56 }