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authorMilo Kim <milo.kim@ti.com>2013-08-08 07:45:41 +0400
committerBryan Wu <cooloney@gmail.com>2013-08-27 04:22:12 +0400
commit6841a91dc5cfcb02b99413fa4199d9a8ce5ae770 (patch)
treed4fc864fe7bcbb4e05021c101df0d03177d596b0 /drivers/leds
parente5862b9a521fcb2d5f95898b506fbc788762fca5 (diff)
downloadlinux-6841a91dc5cfcb02b99413fa4199d9a8ce5ae770.tar.xz
leds: lp55xx: add common data structure for program
LP55xx family devices have internal three program engines which are used for loading LED patterns. To maintain legacy device attributes, specific data structure is used, 'mode' and 'led_mux'. The mode is used for showing/storing current engine mode such like disabled, load and run. Then led_mux is used for showing/storing current output LED selection. This is only for LP5523/55231. Signed-off-by: Milo Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds-lp55xx-common.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index dbbf86df0f1f..04c1d4fc18c0 100644
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -20,6 +20,13 @@ enum lp55xx_engine_index {
LP55XX_ENGINE_1,
LP55XX_ENGINE_2,
LP55XX_ENGINE_3,
+ LP55XX_ENGINE_MAX = LP55XX_ENGINE_3,
+};
+
+enum lp55xx_engine_mode {
+ LP55XX_ENGINE_DISABLED,
+ LP55XX_ENGINE_LOAD,
+ LP55XX_ENGINE_RUN,
};
struct lp55xx_led;
@@ -72,6 +79,16 @@ struct lp55xx_device_config {
};
/*
+ * struct lp55xx_engine
+ * @mode : Engine mode
+ * @led_mux : Mux bits for LED selection. Only used in LP5523
+ */
+struct lp55xx_engine {
+ enum lp55xx_engine_mode mode;
+ u16 led_mux;
+};
+
+/*
* struct lp55xx_chip
* @cl : I2C communication for access registers
* @pdata : Platform specific data
@@ -79,6 +96,7 @@ struct lp55xx_device_config {
* @num_leds : Number of registered LEDs
* @cfg : Device specific configuration data
* @engine_idx : Selected engine number
+ * @engines : Engine structure for the device attribute R/W interface
* @fw : Firmware data for running a LED pattern
*/
struct lp55xx_chip {
@@ -89,6 +107,7 @@ struct lp55xx_chip {
int num_leds;
struct lp55xx_device_config *cfg;
enum lp55xx_engine_index engine_idx;
+ struct lp55xx_engine engines[LP55XX_ENGINE_MAX];
const struct firmware *fw;
};