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Commit 9d2c0ef7 authored by Arnaud Patard's avatar Arnaud Patard Committed by Sascha Hauer
Browse files

efikamx: add leds support 



The efika mx a 3 leds (1 blue, 1 red, 1 green) connected on GPIOS 3 13/14/15.
Also, some special care is done for default trigger of blue led for mmc as
the mmc host used is different between hw revisions

Signed-off-by: default avatarArnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 82df68ad

arch/arm/mach-mx5/board-mx51_efikamx.c

+46 −1
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/platform_device.h>

#include <linux/i2c.h>

#include <linux/gpio.h>

#include <linux/leds.h>

#include <linux/delay.h>

#include <linux/io.h>

#include <linux/fsl_devices.h>
@@ -43,6 +44,10 @@ 
#define EFIKAMX_PCBID1		(2*32 + 17)

#define EFIKAMX_PCBID2		(2*32 + 11)



#define EFIKAMX_BLUE_LED	(2*32 + 13)

#define EFIKAMX_GREEN_LED	(2*32 + 14)

#define EFIKAMX_RED_LED		(2*32 + 15)



/* the pci ids pin have pull up. they're driven low according to board id */

#define MX51_PAD_PCBID0	IOMUX_PAD(0x518, 0x130, 3, 0x0,   0, PAD_CTL_PUS_100K_UP)

#define MX51_PAD_PCBID1	IOMUX_PAD(0x51C, 0x134, 3, 0x0,   0, PAD_CTL_PUS_100K_UP)
@@ -80,6 +85,11 @@ static iomux_v3_cfg_t mx51efikamx_pads[] = { 
	MX51_PAD_GPIO_1_1__ESDHC1_WP,

	MX51_PAD_GPIO_1_7__ESDHC2_WP,

	MX51_PAD_GPIO_1_8__ESDHC2_CD,



	/* leds */

	MX51_PAD_CSI1_D9__GPIO_3_13,

	MX51_PAD_CSI1_VSYNC__GPIO_3_14,

	MX51_PAD_CSI1_HSYNC__GPIO_3_15,

};



/* Serial ports */
@@ -178,6 +188,37 @@ static void __init mx51_efikamx_board_id(void) 
	}

}



static struct gpio_led mx51_efikamx_leds[] = {

	{

		.name = "efikamx:green",

		.default_trigger = "default-on",

		.gpio = EFIKAMX_GREEN_LED,

	},

	{

		.name = "efikamx:red",

		.default_trigger = "ide-disk",

		.gpio = EFIKAMX_RED_LED,

	},

	{

		.name = "efikamx:blue",

		.default_trigger = "mmc0",

		.gpio = EFIKAMX_BLUE_LED,

	},

};



static struct gpio_led_platform_data mx51_efikamx_leds_data = {

	.leds = mx51_efikamx_leds,

	.num_leds = ARRAY_SIZE(mx51_efikamx_leds),

};



static struct platform_device mx51_efikamx_leds_device = {

	.name = "leds-gpio",

	.id = -1,

	.dev = {

		.platform_data = &mx51_efikamx_leds_data,

	},

};



static void __init mxc_board_init(void)

{

	mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads,
@@ -188,8 +229,12 @@ static void __init mxc_board_init(void) 
	imx51_add_esdhc(0, NULL);



	/* on < 1.2 boards both SD controllers are used */

	if (system_rev < 0x12)

	if (system_rev < 0x12) {

		imx51_add_esdhc(1, NULL);

		mx51_efikamx_leds[2].default_trigger = "mmc1";

	}



	platform_device_register(&mx51_efikamx_leds_device);

}



static void __init mx51_efikamx_timer_init(void)