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[ARM] 4758/1: [AT91] LEDs

Browse source 
Move the LED initialization code out of the various *_devices.c files,
and into leds.c.
Also add support for NEW_LEDs.

Patch from David Brownell.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor 2008-01-23 09:27:06 +01:00 committed by Russell King
parent c8f385a631
commit a04ff1af97
8 changed files with 70 additions and 114 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/arm/mach-at91/Makefile
View file

@ -45,7 +45,7 @@ obj-$(CONFIG_MACH_AT91SAM9RLEK) += board-sam9rlek.o
obj-$(CONFIG_MACH_AT91EB01) += board-eb01.o
# Drivers
obj-$(CONFIG_LEDS) += leds.o
obj-y += leds.o
# Power Management
obj-$(CONFIG_PM) += pm.o

22
arch/arm/mach-at91/at91rm9200_devices.c
View file

@ -613,28 +613,6 @@ static void __init at91_add_device_watchdog(void) {}
#endif
/* --------------------------------------------------------------------
* LEDs
* -------------------------------------------------------------------- */
#if defined(CONFIG_LEDS)
u8 at91_leds_cpu;
u8 at91_leds_timer;
void __init at91_init_leds(u8 cpu_led, u8 timer_led)
{
/* Enable GPIO to access the LEDs */
at91_set_gpio_output(cpu_led, 1);
at91_set_gpio_output(timer_led, 1);
at91_leds_cpu = cpu_led;
at91_leds_timer = timer_led;
}
#else
void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
#endif
/* --------------------------------------------------------------------
* SSC -- Synchronous Serial Controller
* -------------------------------------------------------------------- */

22
arch/arm/mach-at91/at91sam9260_devices.c
View file

@ -584,28 +584,6 @@ static void __init at91_add_device_watchdog(void) {}
#endif
/* --------------------------------------------------------------------
* LEDs
* -------------------------------------------------------------------- */
#if defined(CONFIG_LEDS)
u8 at91_leds_cpu;
u8 at91_leds_timer;
void __init at91_init_leds(u8 cpu_led, u8 timer_led)
{
/* Enable GPIO to access the LEDs */
at91_set_gpio_output(cpu_led, 1);
at91_set_gpio_output(timer_led, 1);
at91_leds_cpu = cpu_led;
at91_leds_timer = timer_led;
}
#else
void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
#endif
/* --------------------------------------------------------------------
* SSC -- Synchronous Serial Controller
* -------------------------------------------------------------------- */

22
arch/arm/mach-at91/at91sam9261_devices.c
View file

@ -596,28 +596,6 @@ static void __init at91_add_device_watchdog(void) {}
#endif
/* --------------------------------------------------------------------
* LEDs
* -------------------------------------------------------------------- */
#if defined(CONFIG_LEDS)
u8 at91_leds_cpu;
u8 at91_leds_timer;
void __init at91_init_leds(u8 cpu_led, u8 timer_led)
{
/* Enable GPIO to access the LEDs */
at91_set_gpio_output(cpu_led, 1);
at91_set_gpio_output(timer_led, 1);
at91_leds_cpu = cpu_led;
at91_leds_timer = timer_led;
}
#else
void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
#endif
/* --------------------------------------------------------------------
* SSC -- Synchronous Serial Controller
* -------------------------------------------------------------------- */

22
arch/arm/mach-at91/at91sam9263_devices.c
View file

@ -843,28 +843,6 @@ static void __init at91_add_device_watchdog(void) {}
#endif
/* --------------------------------------------------------------------
* LEDs
* -------------------------------------------------------------------- */
#if defined(CONFIG_LEDS)
u8 at91_leds_cpu;
u8 at91_leds_timer;
void __init at91_init_leds(u8 cpu_led, u8 timer_led)
{
/* Enable GPIO to access the LEDs */
at91_set_gpio_output(cpu_led, 1);
at91_set_gpio_output(timer_led, 1);
at91_leds_cpu = cpu_led;
at91_leds_timer = timer_led;
}
#else
void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
#endif
/* --------------------------------------------------------------------
* SSC -- Synchronous Serial Controller
* -------------------------------------------------------------------- */

22
arch/arm/mach-at91/at91sam9rl_devices.c
View file

@ -449,28 +449,6 @@ static void __init at91_add_device_watchdog(void) {}
#endif
/* --------------------------------------------------------------------
* LEDs
* -------------------------------------------------------------------- */
#if defined(CONFIG_LEDS)
u8 at91_leds_cpu;
u8 at91_leds_timer;
void __init at91_init_leds(u8 cpu_led, u8 timer_led)
{
/* Enable GPIO to access the LEDs */
at91_set_gpio_output(cpu_led, 1);
at91_set_gpio_output(timer_led, 1);
at91_leds_cpu = cpu_led;
at91_leds_timer = timer_led;
}
#else
void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
#endif
/* --------------------------------------------------------------------
* SSC -- Synchronous Serial Controller
* -------------------------------------------------------------------- */

68
arch/arm/mach-at91/leds.c
View file

@ -14,11 +14,62 @@
#include <linux/init.h>
#include <asm/mach-types.h>
#include <asm/leds.h>
#include <asm/arch/board.h>
#include <asm/arch/gpio.h>
/* ------------------------------------------------------------------------- */
#if defined(CONFIG_NEW_LEDS)
#include <linux/platform_device.h>
/*
* New cross-platform LED support.
*/
static struct gpio_led_platform_data led_data;
static struct platform_device at91_leds = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &led_data,
};
void __init at91_gpio_leds(struct gpio_led *leds, int nr)
{
int i;
if (!nr)
return;
for (i = 0; i < nr; i++)
at91_set_gpio_output(leds[i].gpio, leds[i].active_low);
led_data.leds = leds;
led_data.num_leds = nr;
platform_device_register(&at91_leds);
}
#else
void __init at91_gpio_leds(struct gpio_led *leds, int nr) {}
#endif
/* ------------------------------------------------------------------------- */
#if defined(CONFIG_LEDS)
#include <asm/leds.h>
/*
* Old ARM-specific LED framework; not fully functional when generic time is
* in use.
*/
static u8 at91_leds_cpu;
static u8 at91_leds_timer;
static inline void at91_led_on(unsigned int led)
{
at91_set_gpio_value(led, 0);
@ -93,3 +144,18 @@ static int __init leds_init(void)
}
__initcall(leds_init);
void __init at91_init_leds(u8 cpu_led, u8 timer_led)
{
/* Enable GPIO to access the LEDs */
at91_set_gpio_output(cpu_led, 1);
at91_set_gpio_output(timer_led, 1);
at91_leds_cpu = cpu_led;
at91_leds_timer = timer_led;
}
#else
void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
#endif

4
include/asm-arm/arch-at91/board.h
View file

@ -34,6 +34,7 @@
#include <linux/mtd/partitions.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/spi/spi.h>
/* USB Device */
@ -157,9 +158,8 @@ extern void __init at91_add_device_ac97(struct atmel_ac97_data *data);
extern void __init at91_add_device_isi(void);
/* LEDs */
extern u8 at91_leds_cpu;
extern u8 at91_leds_timer;
extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
/* FIXME: this needs a better location, but gets stuff building again */
extern int at91_suspend_entering_slow_clock(void);