File linux-2.6-omap3-rx51-Platform-support-for-lp5523-led-chip.patch of Package kernel-adaptation-n900

From 7fb972d0e854e9547a23f24b8b683da22e1171c7 Mon Sep 17 00:00:00 2001
From: Ameya Palande <ameya.palande@nokia.com>
Date: Wed, 18 Aug 2010 17:50:23 +0300
Subject: [PATCH 28/42] omap3: rx51: Platform support for lp5523 led chip

Signed-off-by: Ameya Palande <ameya.palande@nokia.com>
---
 arch/arm/mach-omap2/board-rx51-peripherals.c |   83 +++++++++++++++++++++++++-
 1 files changed, 82 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index cc279c2..d528848 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -42,6 +42,7 @@
 
 #include <sound/tlv320aic3x.h>
 #include <sound/tpa6130a2-plat.h>
+#include <linux/leds-lp5523.h>
 
 #include <../drivers/staging/iio/light/tsl2563.h>
 #include <linux/lis3lv02d.h>
@@ -67,6 +68,8 @@
 #define LIS302_IRQ1_GPIO 181
 #define LIS302_IRQ2_GPIO 180  /* Not yet in use */
 
+#define RX51_LP5523_CHIP_EN_GPIO        41
+
 /* list all spi devices here */
 enum {
 	RX51_SPI_WL1251,
@@ -154,6 +157,79 @@ static struct tsl2563_platform_data rx51_tsl2563_platform_data = {
 };
 #endif
 
+#if defined(CONFIG_LEDS_LP5523) || defined(CONFIG_LEDS_LP5523_MODULE)
+static struct lp5523_led_config rx51_lp5523_led_config[] = {
+	{
+		.chan_nr	= 0,
+		.led_current	= 50,
+	}, {
+		.chan_nr	= 1,
+		.led_current	= 50,
+	}, {
+		.chan_nr	= 2,
+		.led_current	= 50,
+	}, {
+		.chan_nr	= 3,
+		.led_current	= 50,
+	}, {
+		.chan_nr	= 4,
+		.led_current	= 50,
+	}, {
+		.chan_nr	= 5,
+		.led_current	= 50,
+	}, {
+		.chan_nr	= 6,
+		.led_current	= 50,
+	}, {
+		.chan_nr	= 7,
+		.led_current	= 50,
+	}, {
+		.chan_nr	= 8,
+		.led_current	= 50,
+	}
+};
+
+static int rx51_lp5523_setup(void)
+{
+	int err;
+
+	err = gpio_request(RX51_LP5523_CHIP_EN_GPIO, "lp5523_enable");
+	if (err < 0) {
+		pr_err("Unable to get lp5523_enable GPIO\n");
+		return err;
+	}
+
+	err = gpio_direction_output(RX51_LP5523_CHIP_EN_GPIO, 1);
+	if (err < 0) {
+		pr_err("Failed to change direction for %d GPIO\n",
+				RX51_LP5523_CHIP_EN_GPIO);
+	}
+	return err;
+}
+
+static void rx51_lp5523_release(void)
+{
+	gpio_free(RX51_LP5523_CHIP_EN_GPIO);
+}
+
+static void rx51_lp5523_enable(bool state)
+{
+	if (state)
+		gpio_set_value(RX51_LP5523_CHIP_EN_GPIO, 1);
+	else
+		gpio_set_value(RX51_LP5523_CHIP_EN_GPIO, 0);
+}
+
+static struct lp5523_platform_data rx51_lp5523_platform_data = {
+	.led_config		= rx51_lp5523_led_config,
+	.num_channels		= ARRAY_SIZE(rx51_lp5523_led_config),
+	.clock_mode		= LP5523_CLOCK_AUTO,
+	.setup_resources	= rx51_lp5523_setup,
+	.release_resources 	= rx51_lp5523_release,
+	.enable			= rx51_lp5523_enable,
+};
+#endif
+
 static struct omap2_mcspi_device_config wl1251_mcspi_config = {
 	.turbo_mode	= 0,
 	.single_channel	= 1,
@@ -901,6 +977,12 @@ static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_2[] = {
 		.platform_data = &rx51_tsl2563_platform_data,
 	},
 #endif
+#if defined(CONFIG_LEDS_LP5523) || defined(CONFIG_LEDS_LP5523_MODULE)
+	{
+		I2C_BOARD_INFO("lp5523", 0x32),
+		.platform_data  = &rx51_lp5523_platform_data,
+	},
+#endif
 	{
 		I2C_BOARD_INFO("tpa6130a2", 0x60),
 		.platform_data = &rx51_tpa6130a2_data,
@@ -1189,4 +1271,3 @@ void __init rx51_peripherals_init(void)
 	omap2_hsmmc_init(mmc);
 	platform_device_register(&rx51_charger_device);
 }
-
-- 
1.7.0.4