target/linux/brcm47xx/patches-3.10/120-MIPS-BCM47XX-Prepare-support-for-LEDs.patch

   1 From 98e54a60a7346ef31cb851b670a238ad428b58fe Mon Sep 17 00:00:00 2001
   2 From: Rafa? Mi?ecki <zajec5@gmail.com>
   3 Date: Thu, 2 Jan 2014 13:27:15 +0100
   4 Subject: [PATCH 029/110] MIPS: BCM47XX: Prepare support for LEDs
   5
   6 So far this is mostly just a proof of concept, database consists of a
   7 single device. Creating a nice iterateable array wasn't an option
   8 because devices have different amount of LEDs. And we don't want to
   9 waste memory just because of support for a device with dozens on LEDs.
  10
  11 Signed-off-by: Rafa? Mi?ecki <zajec5@gmail.com>
  12 Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
  13 Acked-by: John Crispin <blogic@openwrt.org>
  14 Patchwork: http://patchwork.linux-mips.org/patch/6299/
  15 ---
  16  arch/mips/bcm47xx/Kconfig           |    2 +
  17  arch/mips/bcm47xx/Makefile          |    2 +-
  18  arch/mips/bcm47xx/bcm47xx_private.h |    9 +++++
  19  arch/mips/bcm47xx/leds.c            |   73 +++++++++++++++++++++++++++++++++++
  20  arch/mips/bcm47xx/setup.c           |    6 +++
  21  5 files changed, 91 insertions(+), 1 deletion(-)
  22  create mode 100644 arch/mips/bcm47xx/bcm47xx_private.h
  23  create mode 100644 arch/mips/bcm47xx/leds.c
  24
  25 --- a/arch/mips/bcm47xx/Kconfig
  26 +++ b/arch/mips/bcm47xx/Kconfig
  27 @@ -12,6 +12,7 @@ config BCM47XX_SSB
  28         select SSB_PCICORE_HOSTMODE if PCI
  29         select SSB_DRIVER_GPIO
  30         select GPIOLIB
  31 +       select LEDS_GPIO_REGISTER
  32         default y
  33         help
  34          Add support for old Broadcom BCM47xx boards with Sonics Silicon Backplane support.
  35 @@ -29,6 +30,7 @@ config BCM47XX_BCMA
  36         select BCMA_DRIVER_PCI_HOSTMODE if PCI
  37         select BCMA_DRIVER_GPIO
  38         select GPIOLIB
  39 +       select LEDS_GPIO_REGISTER
  40         default y
  41         help
  42          Add support for new Broadcom BCM47xx boards with Broadcom specific Advanced Microcontroller Bus.
  43 --- a/arch/mips/bcm47xx/Makefile
  44 +++ b/arch/mips/bcm47xx/Makefile
  45 @@ -4,5 +4,5 @@
  46  #
  47
  48  obj-y                          += irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
  49 -obj-y                          += board.o
  50 +obj-y                          += board.o leds.o
  51  obj-$(CONFIG_BCM47XX_SSB)      += wgt634u.o
  52 --- /dev/null
  53 +++ b/arch/mips/bcm47xx/bcm47xx_private.h
  54 @@ -0,0 +1,9 @@
  55 +#ifndef LINUX_BCM47XX_PRIVATE_H_
  56 +#define LINUX_BCM47XX_PRIVATE_H_
  57 +
  58 +#include <linux/kernel.h>
  59 +
  60 +/* leds.c */
  61 +void __init bcm47xx_leds_register(void);
  62 +
  63 +#endif
  64 --- /dev/null
  65 +++ b/arch/mips/bcm47xx/leds.c
  66 @@ -0,0 +1,73 @@
  67 +#include "bcm47xx_private.h"
  68 +
  69 +#include <linux/leds.h>
  70 +#include <bcm47xx_board.h>
  71 +
  72 +static const struct gpio_led
  73 +bcm47xx_leds_netgear_wndr4500_v1_leds[] __initconst = {
  74 +       {
  75 +               .name           = "bcm47xx:green:wps",
  76 +               .gpio           = 1,
  77 +               .active_low     = 1,
  78 +               .default_state  = LEDS_GPIO_DEFSTATE_KEEP,
  79 +       },
  80 +       {
  81 +               .name           = "bcm47xx:green:power",
  82 +               .gpio           = 2,
  83 +               .active_low     = 1,
  84 +               .default_state  = LEDS_GPIO_DEFSTATE_KEEP,
  85 +       },
  86 +       {
  87 +               .name           = "bcm47xx:orange:power",
  88 +               .gpio           = 3,
  89 +               .active_low     = 1,
  90 +               .default_state  = LEDS_GPIO_DEFSTATE_KEEP,
  91 +       },
  92 +       {
  93 +               .name           = "bcm47xx:green:usb1",
  94 +               .gpio           = 8,
  95 +               .active_low     = 1,
  96 +               .default_state  = LEDS_GPIO_DEFSTATE_KEEP,
  97 +       },
  98 +       {
  99 +               .name           = "bcm47xx:green:2ghz",
 100 +               .gpio           = 9,
 101 +               .active_low     = 1,
 102 +               .default_state  = LEDS_GPIO_DEFSTATE_KEEP,
 103 +       },
 104 +       {
 105 +               .name           = "bcm47xx:blue:5ghz",
 106 +               .gpio           = 11,
 107 +               .active_low     = 1,
 108 +               .default_state  = LEDS_GPIO_DEFSTATE_KEEP,
 109 +       },
 110 +       {
 111 +               .name           = "bcm47xx:green:usb2",
 112 +               .gpio           = 14,
 113 +               .active_low     = 1,
 114 +               .default_state  = LEDS_GPIO_DEFSTATE_KEEP,
 115 +       },
 116 +};
 117 +
 118 +static struct gpio_led_platform_data bcm47xx_leds_pdata;
 119 +
 120 +#define bcm47xx_set_pdata(dev_leds) do {                               \
 121 +       bcm47xx_leds_pdata.leds = dev_leds;                             \
 122 +       bcm47xx_leds_pdata.num_leds = ARRAY_SIZE(dev_leds);             \
 123 +} while (0)
 124 +
 125 +void __init bcm47xx_leds_register(void)
 126 +{
 127 +       enum bcm47xx_board board = bcm47xx_board_get();
 128 +
 129 +       switch (board) {
 130 +       case BCM47XX_BOARD_NETGEAR_WNDR4500V1:
 131 +               bcm47xx_set_pdata(bcm47xx_leds_netgear_wndr4500_v1_leds);
 132 +               break;
 133 +       default:
 134 +               pr_debug("No LEDs configuration found for this device\n");
 135 +               return;
 136 +       }
 137 +
 138 +       gpio_led_register_device(-1, &bcm47xx_leds_pdata);
 139 +}
 140 --- a/arch/mips/bcm47xx/setup.c
 141 +++ b/arch/mips/bcm47xx/setup.c
 142 @@ -26,6 +26,8 @@
 143   *  675 Mass Ave, Cambridge, MA 02139, USA.
 144   */
 145
 146 +#include "bcm47xx_private.h"
 147 +
 148  #include <linux/export.h>
 149  #include <linux/types.h>
 150  #include <linux/ssb/ssb.h>
 151 @@ -243,6 +245,9 @@ static int __init bcm47xx_register_bus_c
 152                 break;
 153  #endif
 154         }
 155 +
 156 +       bcm47xx_leds_register();
 157 +
 158         return 0;
 159  }
 160  device_initcall(bcm47xx_register_bus_complete);