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linux
[MIPS] GPIO LED driver for the WGT634U machine
Add LED support to the WGT634U machine. It uses the new gpio-led
driver and a platform driver for the pin definitions.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
authored by
Aurelien Jarno
and committed by
Ralf Baechle
21c854dc
34cc662f
+65
-1
+1
-1
arch/mips/bcm47xx/Makefile
+1
-1
arch/mips/bcm47xx/Makefile
+64
arch/mips/bcm47xx/wgt634u.c
+64
arch/mips/bcm47xx/wgt634u.c
···
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
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*/
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#include <linux/platform_device.h>
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#include <linux/module.h>
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#include <linux/leds.h>
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#include <linux/ssb/ssb.h>
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#include <asm/mach-bcm47xx/bcm47xx.h>
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/* GPIO definitions for the WGT634U */
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#define WGT634U_GPIO_LED 3
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#define WGT634U_GPIO_RESET 2
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#define WGT634U_GPIO_TP1 7
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#define WGT634U_GPIO_TP2 6
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#define WGT634U_GPIO_TP3 5
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#define WGT634U_GPIO_TP4 4
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#define WGT634U_GPIO_TP5 1
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static struct gpio_led wgt634u_leds[] = {
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{
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.name = "power",
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.gpio = WGT634U_GPIO_LED,
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.active_low = 1,
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.default_trigger = "heartbeat",
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},
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};
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static struct gpio_led_platform_data wgt634u_led_data = {
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.num_leds = ARRAY_SIZE(wgt634u_leds),
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.leds = wgt634u_leds,
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};
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static struct platform_device wgt634u_gpio_leds = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &wgt634u_led_data,
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}
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};
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static int __init wgt634u_init(void)
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{
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/* There is no easy way to detect that we are running on a WGT634U
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* machine. Use the MAC address as an heuristic. Netgear Inc. has
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* been allocated ranges 00:09:5b:xx:xx:xx and 00:0f:b5:xx:xx:xx.
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*/
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u8 *et0mac = ssb_bcm47xx.sprom.r1.et0mac;
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if (et0mac[0] == 0x00 &&
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((et0mac[1] == 0x09 && et0mac[2] == 0x5b) ||
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(et0mac[1] == 0x0f && et0mac[2] == 0xb5)))
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return platform_device_register(&wgt634u_gpio_leds);
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else
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return -ENODEV;
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}
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module_init(wgt634u_init);
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