forked from luck/tmp_suning_uos_patched
19e4ab54e7
From Bryan Wu <bryan.wu@canonical.com>: Based on Linus Walleij's ARM LED consolidation work, this patchset introduce a new generic led trigger for CPU not only for ARM but also for others. For enabling CPU idle event, CPU arch code should call ledtrig_cpu() stub to trigger idle start or idle end event. These patches convert old style LED driver in arch/arm to gpio_led or new led driver interface. Against 3.5 release and build successfully for all the machines. Test ledtrig-cpu driver on OMAP4 Panda board. v9 --> v10 * fix compiling issue on versatile_defconfig reported by Russell King * rebase to 3.5 kernel and move patches to new git tree v8 --> v9: * use mutex to replace rw_sema pointed out by Tim Gardner * add a new struct led_trigger_cpu * add lock_is_inited to record mutex lock initialization v6 --> v7: * add a patch to unify the led-trigger name * fix some typo pointed * use BUG_ON to detect CPU numbers during building stage v5 --> v6: * replace __get_cpu_var() to per_cpu() * remove smp_processor_id() which is wrong with for_each_possible_cpu() * test on real OMAP4 Panda board * add comments about CPU hotplug in the CPU LED trigger driver v4 --> v5: * rebase all the patches on top of latest linux-next * replace on_each_cpu() with for_each_possible_cpu() * add some description of ledtrig_cpu() API * remove old leds code from driver nwflash.c, which should use a new led trigger then * this trigger driver can be built as module now v3 --> v4: * fix a typo pointed by Jochen Friedrich * fix some building errors * add Reviewed-by and Tested-by into patch log v2 --> v3: * almost rewrote the whole ledtrig-cpu driver, which is more simple * every CPU will have a per-CPU trigger * cpu trigger can be assigned to any leds * fix a lockdep issue in led-trigger common code * other fix according to review v1 --> v2: * remove select operations in Kconfig of every machines * add back supporting of led in core module of mach-integrator * solidate name scheme in ledtrig-cpu.c * add comments of CPU_LED_* cpu led events * fold patches of RealView and Versatile together * add machine_is_ check during assabet led driver init * add some Acked-by in patch logs * remove code for simpad machine in machine-sa11000, since Jochen Friedrich introduced gpiolib and gpio-led driver for simpad * on Assabet and Netwinder machine, LED operations is reversed like: setting bit means turn off leds clearing bit means turn on leds * add a new function to read CM_CTRL register for led driver * 'for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: ARM: use new LEDS CPU trigger stub to replace old one ARM: mach-sa1100: retire custom LED code ARM: mach-omap1: retire custom LED code ARM: mach-pnx4008: remove including old leds event API header file ARM: plat-samsung: remove including old leds event API header file ARM: mach-pxa: retire custom LED code char: nwflash: remove old led event code ARM: mach-footbridge: retire custom LED code ARM: mach-ebsa110: retire custom LED code ARM: mach-clps711x: retire custom LED code of P720T machine ARM: mach-integrator: retire custom LED code ARM: mach-integrator: move CM_CTRL to header file for accessing by other functions ARM: mach-orion5x: convert custom LED code to gpio_led and LED CPU trigger ARM: mach-shark: retire custom LED code ARM: mach-ks8695: remove leds driver, since nobody use it ARM: mach-realview and mach-versatile: retire custom LED code ARM: at91: convert old leds drivers to gpio_led and led_trigger drivers led-triggers: create a trigger for CPU activity Conflicts: arch/arm/mach-clps711x/p720t.c arch/arm/mach-sa1100/leds-cerf.c arch/arm/mach-sa1100/leds-lart.c Let's hope this is the last time we pull this and it doesn't cause more trouble. I have verified that version 10 causes no build warnings or errors any more, and the patches still look good. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/*
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* linux/arch/arm/mach-at91/board-kafa.c
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*
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* Copyright (C) 2006 Sperry-Sun
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <mach/hardware.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <mach/board.h>
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#include <mach/at91_aic.h>
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#include <mach/cpu.h>
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#include "generic.h"
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static void __init kafa_init_early(void)
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{
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/* Set cpu type: PQFP */
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at91rm9200_set_type(ARCH_REVISON_9200_PQFP);
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/* Initialize processor: 18.432 MHz crystal */
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at91_initialize(18432000);
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}
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static struct macb_platform_data __initdata kafa_eth_data = {
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.phy_irq_pin = AT91_PIN_PC4,
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.is_rmii = 0,
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};
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static struct at91_usbh_data __initdata kafa_usbh_data = {
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.ports = 1,
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.vbus_pin = {-EINVAL, -EINVAL},
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.overcurrent_pin= {-EINVAL, -EINVAL},
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};
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static struct at91_udc_data __initdata kafa_udc_data = {
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.vbus_pin = AT91_PIN_PB6,
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.pullup_pin = AT91_PIN_PB7,
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};
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/*
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* LEDs
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*/
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static struct gpio_led kafa_leds[] = {
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{ /* D1 */
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.name = "led1",
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.gpio = AT91_PIN_PB4,
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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 void __init kafa_board_init(void)
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{
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/* Serial */
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/* DBGU on ttyS0. (Rx & Tx only) */
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at91_register_uart(0, 0, 0);
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/* USART0 on ttyS1 (Rx, Tx, CTS, RTS) */
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at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
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at91_add_device_serial();
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/* Ethernet */
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at91_add_device_eth(&kafa_eth_data);
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/* USB Host */
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at91_add_device_usbh(&kafa_usbh_data);
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/* USB Device */
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at91_add_device_udc(&kafa_udc_data);
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/* I2C */
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at91_add_device_i2c(NULL, 0);
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/* SPI */
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at91_add_device_spi(NULL, 0);
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/* LEDs */
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at91_gpio_leds(kafa_leds, ARRAY_SIZE(kafa_leds));
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}
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MACHINE_START(KAFA, "Sperry-Sun KAFA")
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/* Maintainer: Sergei Sharonov */
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.timer = &at91rm9200_timer,
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.map_io = at91_map_io,
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.handle_irq = at91_aic_handle_irq,
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.init_early = kafa_init_early,
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.init_irq = at91_init_irq_default,
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.init_machine = kafa_board_init,
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MACHINE_END
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