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authorKim, Milo <Milo.Kim@ti.com>2013-02-21 16:44:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 17:22:25 -0800
commit26e8ccc223ebfd2047a96074f142544dc7062cfe (patch)
tree5bb294732ee8502a139d578d61d1faaae2031618 /include
parent68853bc2b360c06094477523f7d28efd2d9e3bf3 (diff)
backlight: lp855x_bl: support new LP8557 device
LP8557 is one of LP855x family device, but it has different register map and initialization process. To support this device, device specific configuration is done through the lp855x_device_config structure. Few register definitions are fixed for better readability. BRIGHTNESS_CTRL -> LP855X_BRIGHTNESS_CTRL DEVICE_CTRL -> LP855X_DEVICE_CTRL EEPROM_START -> LP855X_EEPROM_START EEPROM_END -> LP855X_EEPROM_END EPROM_START -> LP8556_EPROM_START EPROM_END -> LP8556_EPROM_END And LP8557 register definitions are added. New register function, lp855x_update_bit() is added. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/platform_data/lp855x.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/platform_data/lp855x.h b/include/linux/platform_data/lp855x.h
index e81f62d24ee..20ee8b221db 100644
--- a/include/linux/platform_data/lp855x.h
+++ b/include/linux/platform_data/lp855x.h
@@ -49,12 +49,24 @@
#define LP8556_FAST_CONFIG BIT(7) /* use it if EPROMs should be maintained
when exiting the low power mode */
+/* CONFIG register - LP8557 */
+#define LP8557_PWM_STANDBY BIT(7)
+#define LP8557_PWM_FILTER BIT(6)
+#define LP8557_RELOAD_EPROM BIT(3) /* use it if EPROMs should be reset
+ when the backlight turns on */
+#define LP8557_OFF_OPENLEDS BIT(2)
+#define LP8557_PWM_CONFIG LP8557_PWM_ONLY
+#define LP8557_I2C_CONFIG LP8557_I2C_ONLY
+#define LP8557_COMB1_CONFIG LP8557_COMBINED1
+#define LP8557_COMB2_CONFIG LP8557_COMBINED2
+
enum lp855x_chip_id {
LP8550,
LP8551,
LP8552,
LP8553,
LP8556,
+ LP8557,
};
enum lp855x_brightness_ctrl_mode {
@@ -89,6 +101,13 @@ enum lp8556_brightness_source {
LP8556_COMBINED2, /* pwm + i2c after the shaper block */
};
+enum lp8557_brightness_source {
+ LP8557_PWM_ONLY,
+ LP8557_I2C_ONLY,
+ LP8557_COMBINED1, /* pwm + i2c after the shaper block */
+ LP8557_COMBINED2, /* pwm + i2c before the shaper block */
+};
+
struct lp855x_rom_data {
u8 addr;
u8 val;