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ARM: 7026/1: simpad: replace ARM specific LED code 

Remove the legacy ARM LED code for simpad devices and
register a stadard LED platform device using GPIO line
instead.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Jochen Friedrich 2011-08-18 21:51:39 +01:00 committed by Russell King
parent dbd406f9d0
commit d056f5a8fe
5 changed files with 28 additions and 101 deletions
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1
arch/arm/mach-sa1100/Makefile
View File

@ -45,7 +45,6 @@ obj-$(CONFIG_SA1100_PLEB) += pleb.o
obj-$(CONFIG_SA1100_SHANNON) += shannon.o
obj-$(CONFIG_SA1100_SIMPAD) += simpad.o
led-$(CONFIG_SA1100_SIMPAD) += leds-simpad.o
# LEDs support
obj-$(CONFIG_LEDS) += $(led-y)

97
arch/arm/mach-sa1100/leds-simpad.c
View File

@ -1,97 +0,0 @@
/*
* linux/arch/arm/mach-sa1100/leds-simpad.c
*
* Author: Juergen Messerer <juergen.messerer@siemens.ch>
*/
#include <linux/init.h>
#include <mach/hardware.h>
#include <asm/leds.h>
#include <asm/system.h>
#include <mach/simpad.h>
#include "leds.h"
#define LED_STATE_ENABLED 1
#define LED_STATE_CLAIMED 2
static unsigned int led_state;
static unsigned int hw_led_state;
#define LED_GREEN (1)
#define LED_MASK (1)
void simpad_leds_event(led_event_t evt)
{
switch (evt)
{
case led_start:
hw_led_state = LED_GREEN;
led_state = LED_STATE_ENABLED;
break;
case led_stop:
led_state &= ~LED_STATE_ENABLED;
break;
case led_claim:
led_state |= LED_STATE_CLAIMED;
hw_led_state = LED_GREEN;
break;
case led_release:
led_state &= ~LED_STATE_CLAIMED;
hw_led_state = LED_GREEN;
break;
#ifdef CONFIG_LEDS_TIMER
case led_timer:
if (!(led_state & LED_STATE_CLAIMED))
hw_led_state ^= LED_GREEN;
break;
#endif
#ifdef CONFIG_LEDS_CPU
case led_idle_start:
break;
case led_idle_end:
break;
#endif
case led_halted:
break;
case led_green_on:
if (led_state & LED_STATE_CLAIMED)
hw_led_state |= LED_GREEN;
break;
case led_green_off:
if (led_state & LED_STATE_CLAIMED)
hw_led_state &= ~LED_GREEN;
break;
case led_amber_on:
break;
case led_amber_off:
break;
case led_red_on:
break;
case led_red_off:
break;
default:
break;
}
if (led_state & LED_STATE_ENABLED)
simpad_set_cs3_bit(LED2_ON);
else
simpad_clear_cs3_bit(LED2_ON);
}

2
arch/arm/mach-sa1100/leds.c
View File

@ -42,8 +42,6 @@ sa1100_leds_init(void)
leds_event = adsbitsy_leds_event;
if (machine_is_pt_system3())
leds_event = system3_leds_event;
if (machine_is_simpad())
leds_event = simpad_leds_event; /* what about machine registry? including led, apm... -zecke */
leds_event(led_start);
return 0;

1
arch/arm/mach-sa1100/leds.h
View File

@ -11,4 +11,3 @@ extern void pfs168_leds_event(led_event_t evt);
extern void graphicsmaster_leds_event(led_event_t evt);
extern void adsbitsy_leds_event(led_event_t evt);
extern void system3_leds_event(led_event_t evt);
extern void simpad_leds_event(led_event_t evt);

28
arch/arm/mach-sa1100/simpad.c
View File

@ -31,6 +31,7 @@
#include <linux/ioport.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/leds.h>
#include <linux/i2c-gpio.h>
#include "generic.h"
@ -294,6 +295,32 @@ static struct platform_device simpad_polled_keys = {
},
};
/*
* GPIO LEDs
*/
static struct gpio_led simpad_leds[] = {
{
.name = "simpad:power",
.gpio = SIMPAD_CS3_LED2_ON,
.active_low = 0,
.default_trigger = "default-on",
},
};
static struct gpio_led_platform_data simpad_led_data = {
.num_leds = ARRAY_SIZE(simpad_leds),
.leds = simpad_leds,
};
static struct platform_device simpad_gpio_leds = {
.name = "leds-gpio",
.id = 0,
.dev = {
.platform_data = &simpad_led_data,
},
};
/*
* i2c
*/
@ -324,6 +351,7 @@ static struct platform_device *devices[] __initdata = {
&simpad_keys,
&simpad_polled_keys,
&simpad_mq200fb,
&simpad_gpio_leds,
&simpad_i2c,
};