linux-kernel - [PATCH 1/2] MFD: MAX8997: add platform data and devices for LED control

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Date:	Tue, 29 Nov 2011 17:49:58 +0900
From:	Donggeun Kim <dg77.kim@...sung.com>
To:	linux-kernel@...r.kernel.org
Cc:	sameo@...ux.intel.com, rpurdie@...ys.net,
	broonie@...nsource.wolfsonmicro.com, myungjoo.ham@...sung.com,
	kyungmin.park@...sung.com, dg77.kim@...sung.com
Subject: [PATCH 1/2] MFD: MAX8997: add platform data and devices for LED control

MAX8997 device does not support LED control function of it.
To enable MAX8997-LED driver, platform data and devices for LED are updated.

Signed-off-by: Donggeun Kim <dg77.kim@...sung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@...sung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
---
 drivers/mfd/max8997.c       |    2 ++
 include/linux/mfd/max8997.h |   25 ++++++++++++++++++++++++-
 2 files changed, 26 insertions(+), 1 deletions(-)

diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
index 5be53ae..69ca7a9 100644
--- a/drivers/mfd/max8997.c
+++ b/drivers/mfd/max8997.c
@@ -44,6 +44,8 @@ static struct mfd_cell max8997_devs[] = {
 	{ .name = "max8997-haptic", },
 	{ .name = "max8997-muic", },
 	{ .name = "max8997-flash", },
+	{ .name = "max8997-led", .id = 1 },
+	{ .name = "max8997-led", .id = 2 },
 };
 
 int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
diff --git a/include/linux/mfd/max8997.h b/include/linux/mfd/max8997.h
index 0bbd13d..037348f 100644
--- a/include/linux/mfd/max8997.h
+++ b/include/linux/mfd/max8997.h
@@ -77,6 +77,28 @@ struct max8997_regulator_data {
 	struct regulator_init_data *initdata;
 };
 
+enum max8997_led_mode {
+	MAX8997_NONE,
+	MAX8997_FLASH_MODE,
+	MAX8997_MOVIE_MODE,
+	MAX8997_FLASH_PIN_CONTROL_MODE,
+	MAX8997_MOVIE_PIN_CONTROL_MODE,
+};
+
+/**
+ *  struct max8997_led_platform_data
+ *  The number of LED devices for MAX8997 is two
+ *  @mode: LED mode for each LED device
+ *  @brightness: initial brightness for each LED device
+ *	range:
+ *	[0 - 31]: MAX8997_FLASH_MODE and MAX8997_FLASH_PIN_CONTROL_MODE
+ *	[0 - 15]: MAX8997_MOVIE_MODE and MAX8997_MOVIE_PIN_CONTROL_MODE
+ */
+struct max8997_led_platform_data {
+	enum max8997_led_mode mode[2];
+	u8 brightness[2];
+};
+
 struct max8997_platform_data {
 	/* IRQ */
 	int irq_base;
@@ -116,7 +138,8 @@ struct max8997_platform_data {
 	/* MUIC: Not implemented */
 	/* HAPTIC: Not implemented */
 	/* RTC: Not implemented */
-	/* Flash: Not implemented */
+	/* ---- Flash ---- */
+	struct max8997_led_platform_data *led_pdata;
 };
 
 #endif /* __LINUX_MFD_MAX8998_H */
-- 
1.7.4.1

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