leds: pm8038: Add HTC PM8038 LED driver

* HTC kernel version: m4-jb-crc-3.4.10-e831392

Change-Id: I7caee62d870a8bc506236df735efc32642e92bde
diff --git a/include/linux/leds-pm8038.h b/include/linux/leds-pm8038.h
new file mode 100644
index 0000000..b657f74
--- /dev/null
+++ b/include/linux/leds-pm8038.h
@@ -0,0 +1,106 @@
+/* Copyright (c) 2010-2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LEDS_PM8XXX_H__
+#define __LEDS_PM8XXX_H__
+
+#include <linux/kernel.h>
+#include <linux/mfd/pm8xxx/pwm.h>
+
+#define PM8XXX_LEDS_DEV_NAME	"pm8xxx-led"
+
+enum pm8xxx_blink_type {
+	BLINK_STOP = -1,
+	BLINK_UNCHANGE = 0,
+	BLINK_64MS_PER_2SEC,
+	BLINK_64MS_ON_310MS_PER_2SEC,
+	BLINK_64MS_ON_2SEC_PER_2SEC,
+	BLINK_1SEC_PER_2SEC,
+	key_blink_on,
+	key_blink_off,
+};
+
+enum pm8xxx_leds {
+	PM8XXX_ID_LED_KB_LIGHT = 1,
+	PM8XXX_ID_LED_0,
+	PM8XXX_ID_LED_1,
+	PM8XXX_ID_LED_2,
+	PM8XXX_ID_FLASH_LED_0,
+	PM8XXX_ID_FLASH_LED_1,
+	PM8XXX_ID_WLED,
+	PM8XXX_ID_RGB_LED_RED,
+	PM8XXX_ID_RGB_LED_GREEN,
+	PM8XXX_ID_RGB_LED_BLUE,
+	PM8XXX_ID_MAX,
+};
+
+enum pm8xxx_led_modes {
+	PM8XXX_LED_MODE_MANUAL,
+	PM8XXX_LED_MODE_PWM1,
+	PM8XXX_LED_MODE_PWM2,
+	PM8XXX_LED_MODE_PWM3,
+	PM8XXX_LED_MODE_DTEST1,
+	PM8XXX_LED_MODE_DTEST2,
+	PM8XXX_LED_MODE_DTEST3,
+	PM8XXX_LED_MODE_DTEST4
+};
+
+enum wled_current_bost_limit {
+	WLED_CURR_LIMIT_105mA,
+	WLED_CURR_LIMIT_385mA,
+	WLED_CURR_LIMIT_525mA,
+	WLED_CURR_LIMIT_805mA,
+	WLED_CURR_LIMIT_980mA,
+	WLED_CURR_LIMIT_1260mA,
+	WLED_CURR_LIMIT_1400mA,
+	WLED_CURR_LIMIT_1680mA,
+};
+
+enum wled_ovp_threshold {
+	WLED_OVP_35V,
+	WLED_OVP_32V,
+	WLED_OVP_29V,
+	WLED_OVP_37V,
+};
+
+struct wled_config_data {
+	u8	num_strings;
+	u8	ovp_val;
+	u8	boost_curr_lim;
+	u8	cp_select;
+	u8	ctrl_delay_us;
+	bool	dig_mod_gen_en;
+	bool	cs_out_en;
+	bool	op_fdbck;
+};
+
+struct pm8xxx_led_config {
+	u8	id;
+	u8	mode;
+	u16	max_current;
+	int	pwm_channel;
+	u32	pwm_period_us;
+	bool	default_state;
+	struct pm8xxx_pwm_duty_cycles *pwm_duty_cycles;
+	struct wled_config_data	*wled_cfg;
+	int		pwm_coefficient;
+	int		lut_coefficient;
+};
+
+struct pm8xxx_led_platform_data {
+	struct	led_platform_data	*led_core;
+	struct	pm8xxx_led_config	*configs;
+	u32				num_configs;
+};
+void pm8xxx_led_current_set_for_key(int brightness_key);
+
+#endif 
diff --git a/include/linux/mfd/pm8xxx/pm8038.h b/include/linux/mfd/pm8xxx/pm8038.h
index 5203558..a9f9b95 100644
--- a/include/linux/mfd/pm8xxx/pm8038.h
+++ b/include/linux/mfd/pm8xxx/pm8038.h
@@ -35,7 +35,11 @@
 #include <linux/mfd/pm8xxx/pm8921-charger.h>
 #include <linux/mfd/pm8xxx/pm8921-bms.h>
 #endif
+#ifdef CONFIG_LEDS_PM8038
+#include <linux/leds-pm8038.h>
+#else
 #include <linux/leds-pm8xxx.h>
+#endif
 #include <linux/mfd/pm8xxx/ccadc.h>
 #include <linux/mfd/pm8xxx/spk.h>
 #include <linux/mfd/pm8xxx/tm.h>