diff options
| -rw-r--r-- | Documentation/leds/leds-lp55xx.txt | 10 | ||||
| -rw-r--r-- | drivers/leds/leds-lp55xx-common.c | 2 |
2 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/leds/leds-lp55xx.txt b/Documentation/leds/leds-lp55xx.txt index 82713ff92eb3..bcea12a0c584 100644 --- a/Documentation/leds/leds-lp55xx.txt +++ b/Documentation/leds/leds-lp55xx.txt @@ -73,6 +73,10 @@ select_engine : Select which engine is used for running program run_engine : Start program which is loaded via the firmware interface firmware : Load program data +In case of LP5523, one more command is required, 'enginex_leds'. +It is used for selecting LED output(s) at each engine number. +In more details, please refer to 'leds-lp5523.txt'. + For example, run blinking pattern in engine #1 of LP5521 echo 1 > /sys/bus/i2c/devices/xxxx/select_engine echo 1 > /sys/class/firmware/lp5521/loading @@ -81,10 +85,12 @@ echo 0 > /sys/class/firmware/lp5521/loading echo 1 > /sys/bus/i2c/devices/xxxx/run_engine For example, run blinking pattern in engine #3 of LP55231 +Two LEDs are configured as pattern output channels. echo 3 > /sys/bus/i2c/devices/xxxx/select_engine echo 1 > /sys/class/firmware/lp55231/loading echo "9d0740ff7e0040007e00a0010000" > /sys/class/firmware/lp55231/data echo 0 > /sys/class/firmware/lp55231/loading +echo "000001100" > /sys/bus/i2c/devices/xxxx/engine3_leds echo 1 > /sys/bus/i2c/devices/xxxx/run_engine To start blinking patterns in engine #2 and #3 simultaneously, @@ -99,17 +105,19 @@ done echo 1 > /sys/class/leds/red/device/run_engine Here is another example for LP5523. +Full LED strings are selected by 'engine2_leds'. echo 2 > /sys/bus/i2c/devices/xxxx/select_engine echo 1 > /sys/class/firmware/lp5523/loading echo "9d80400004ff05ff437f0000" > /sys/class/firmware/lp5523/data echo 0 > /sys/class/firmware/lp5523/loading +echo "111111111" > /sys/bus/i2c/devices/xxxx/engine2_leds echo 1 > /sys/bus/i2c/devices/xxxx/run_engine As soon as 'loading' is set to 0, registered callback is called. Inside the callback, the selected engine is loaded and memory is updated. To run programmed pattern, 'run_engine' attribute should be enabled. -The pattern sqeuence of LP8501 is same as LP5523. +The pattern sqeuence of LP8501 is similar to LP5523. However pattern data is specific. Ex 1) Engine 1 is used echo 1 > /sys/bus/i2c/devices/xxxx/select_engine diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c index 9acc6bb7deef..88317b4f7bf3 100644 --- a/drivers/leds/leds-lp55xx-common.c +++ b/drivers/leds/leds-lp55xx-common.c @@ -210,6 +210,7 @@ static void lp55xx_firmware_loaded(const struct firmware *fw, void *context) { struct lp55xx_chip *chip = context; struct device *dev = &chip->cl->dev; + enum lp55xx_engine_index idx = chip->engine_idx; if (!fw) { dev_err(dev, "firmware request failed\n"); @@ -219,6 +220,7 @@ static void lp55xx_firmware_loaded(const struct firmware *fw, void *context) /* handling firmware data is chip dependent */ mutex_lock(&chip->lock); + chip->engines[idx - 1].mode = LP55XX_ENGINE_LOAD; chip->fw = fw; if (chip->cfg->firmware_cb) chip->cfg->firmware_cb(chip); |