Re-write lp5521 LED driver.

- provide clean sysfs to control RGB channel directly.
  They are looked like the following:

	channel_mode
  	channel_pwm
	channel_cur

- add platform data to export RGB channel accordingly.

Signed-off-by: Matt Hsu <matt_hsu@openmoko.org>

1 files changed, 66 insertions, 1 deletions

diff --git a/include/linux/lp5521.h b/include/linux/lp5521.h
index 4515a02564c..65f9fb01137 100644
--- a/include/linux/lp5521.h
+++ b/include/linux/lp5521.h
@@ -1,10 +1,75 @@
 #ifndef _LINUX_LP5521_H_
 #define _LINUX_LP5521_H_
 
-struct lp5521_platform_data {
+#define LP5521_REG_ENABLE 	0x00
+#define LP5521_REG_OP_MODE 	0x01
+
+#define LP5521_REG_R_PWM 	0x02
+#define LP5521_REG_G_PWM 	0x03
+#define LP5521_REG_B_PWM 	0x04
+
+#define LP5521_REG_R_CUR 	0x05
+#define LP5521_REG_G_CUR	0x06
+#define LP5521_REG_B_CUR	0x07
+
+#define LP5521_REG_CONFIG	0x08
+
+#define LP5521_REG_R_PC		0x09
+#define LP5521_REG_G_PC		0x0a
+#define LP5521_REG_B_PC		0x0b
+
+#define LP5521_REG_STATUS	0x0c
+#define LP5521_REG_RESET	0x0d
+#define LP5521_REG_GPO		0x0e
 
+enum {
+	LP5521_NC,
+	LP5521_CONNECTED,
+};
+
+enum {
+	LP5521_BLUE,
+	LP5521_GREEN,
+	LP5521_RED,
+	LP5521_NUM_CH,
+};
+
+enum {
+	LP5521_MODE_DISABLE,
+	LP5521_MODE_LOAD,
+	LP5521_MODE_RUN,
+	LP5521_MODE_DIRECT,
+};
+
+enum CP_MODE {
+	LP5521_CPM_OFF,
+	LP5521_CPM_BY_PASS,
+	LP5521_CPM_1_5X,
+	LP5521_CPM_AUTO,
+};
+
+enum CLK_SRC {
+	LP5521_EXT_CLK,
+	LP5521_INT_CLK,
+	LP5521_AUTO_CLK,
+};
+
+#define LP5521_FEAT_TRIG	0x00000001
+#define LP5521_FEAT_GPO		0x00000002
+
+
+struct lp5521_platform_data {
+	int channels[LP5521_NUM_CH];
 	/* chip enable */
 	void (*ext_enable)(int level);
 };
 
+struct lp5521 {
+	struct device *dev;
+	struct i2c_client *client;
+	struct mutex lock;
+	int irq;
+
+	struct lp5521_platform_data *pdata;
+};
 #endif /* LINUX_LP5521_H */