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Commit ad93ab0a authored by David Brownell's avatar David Brownell Committed by Haavard Skinnemoen
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[AVR32] leds-gpio for stk1000 



Add GPIO led support: J2 to either block of LEDs on the STK1000.

This uses the new LEDS_GPIO driver, and sets up a heartbeat trigger by
default ... either bright (!!) amber, or a more interesting purple.

Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarHaavard Skinnemoen <hskinnemoen@atmel.com>
parent 28e8351a

arch/avr32/boards/atstk1000/Kconfig

+26 −0
Original line number Diff line number Diff line
@@ -50,4 +50,30 @@ config BOARD_ATSTK1002_SPI1 
	  GPIO lines and accessed through the J1 jumper block.  Say "y"

	  here to configure that SPI controller.



config BOARD_ATSTK1002_J2_LED

	bool

	default BOARD_ATSTK1002_J2_LED8 || BOARD_ATSTK1002_J2_RGB



choice

	prompt "LEDs connected to J2:"

	depends on LEDS_GPIO && !BOARD_ATSTK1002_SW4_CUSTOM

	optional

	help

	  Select this if you have jumpered the J2 jumper block to the

	  LED0..LED7 amber leds, or to the RGB leds, using a ten-pin

	  IDC cable.  A default "heartbeat" trigger is provided, but

	  you can of course override this.



config BOARD_ATSTK1002_J2_LED8

	bool "LED0..LED7"

	help

	  Select this if J2 is jumpered to LED0..LED7 amber leds.



config BOARD_ATSTK1002_J2_RGB

	bool "RGB leds"

	help

	  Select this if J2 is jumpered to the RGB leds.



endchoice



endif	# stk 1002

arch/avr32/boards/atstk1000/atstk1002.c

+62 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
#include <linux/etherdevice.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/leds.h>

#include <linux/platform_device.h>

#include <linux/string.h>

#include <linux/types.h>
@@ -120,6 +121,65 @@ static void __init set_hw_addr(struct platform_device *pdev) 
	clk_put(pclk);

}



#ifdef CONFIG_BOARD_ATSTK1002_J2_LED



static struct gpio_led stk_j2_led[] = {

#ifdef CONFIG_BOARD_ATSTK1002_J2_LED8

#define LEDSTRING "J2 jumpered to LED8"

	{ .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), },

	{ .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), },

	{ .name = "led2:amber", .gpio = GPIO_PIN_PB(10), },

	{ .name = "led3:amber", .gpio = GPIO_PIN_PB(13), },

	{ .name = "led4:amber", .gpio = GPIO_PIN_PB(14), },

	{ .name = "led5:amber", .gpio = GPIO_PIN_PB(15), },

	{ .name = "led6:amber", .gpio = GPIO_PIN_PB(16), },

	{ .name = "led7:amber", .gpio = GPIO_PIN_PB(30),

			.default_trigger = "heartbeat", },

#else	/* RGB */

#define LEDSTRING "J2 jumpered to RGB LEDs"

	{ .name = "r1:red",     .gpio = GPIO_PIN_PB( 8), },

	{ .name = "g1:green",   .gpio = GPIO_PIN_PB(10), },

	{ .name = "b1:blue",    .gpio = GPIO_PIN_PB(14), },



	{ .name = "r2:red",     .gpio = GPIO_PIN_PB( 9),

			.default_trigger = "heartbeat", },

	{ .name = "g2:green",   .gpio = GPIO_PIN_PB(13), },

	{ .name = "b2:blue",    .gpio = GPIO_PIN_PB(15),

			.default_trigger = "heartbeat", },

	/* PB16, PB30 unused */

#endif

};



static struct gpio_led_platform_data stk_j2_led_data = {

	.num_leds	= ARRAY_SIZE(stk_j2_led),

	.leds		= stk_j2_led,

};



static struct platform_device stk_j2_led_dev = {

	.name		= "leds-gpio",

	.id		= 2,	/* gpio block J2 */

	.dev		= {

		.platform_data	= &stk_j2_led_data,

	},

};



static void setup_j2_leds(void)

{

	unsigned	i;



	for (i = 0; i < ARRAY_SIZE(stk_j2_led); i++)

		at32_select_gpio(stk_j2_led[i].gpio, AT32_GPIOF_OUTPUT);



	printk("STK1002: " LEDSTRING "\n");

	platform_device_register(&stk_j2_led_dev);

}



#else

static void setup_j2_leds(void)

{

}

#endif



void __init setup_board(void)

{

#ifdef	CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
@@ -185,6 +245,8 @@ static int __init atstk1002_init(void) 
	at32_add_device_ssc(0, ATMEL_SSC_TX);

#endif



	setup_j2_leds();



	return 0;

}

postcore_initcall(atstk1002_init);