summaryrefslogtreecommitdiffstats
path: root/Documentation/leds/leds-lp5523.txt
diff options
context:
space:
mode:
authorMilo(Woogyom) Kim <milo.kim@ti.com>2013-02-05 20:22:48 +0900
committerBryan Wu <cooloney@gmail.com>2013-02-06 15:59:30 -0800
commitc0285f8ca8b8a4a1830b6071d6680bde447ff51c (patch)
treea8636f2402639f03701e043870ef0492a8005400 /Documentation/leds/leds-lp5523.txt
parent109b833071b44a4a6f5dc56385025543ed15a500 (diff)
downloadlinux-c0285f8ca8b8a4a1830b6071d6680bde447ff51c.tar.gz
linux-c0285f8ca8b8a4a1830b6071d6680bde447ff51c.tar.bz2
linux-c0285f8ca8b8a4a1830b6071d6680bde447ff51c.zip
Documentation: leds: update LP55xx family devices
Update changed platform data information. Add leds-lp55xx.txt which includes the firmware interface description. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'Documentation/leds/leds-lp5523.txt')
-rw-r--r--Documentation/leds/leds-lp5523.txt27
1 files changed, 5 insertions, 22 deletions
diff --git a/Documentation/leds/leds-lp5523.txt b/Documentation/leds/leds-lp5523.txt
index c2743f59f9ac..899fdad509fe 100644
--- a/Documentation/leds/leds-lp5523.txt
+++ b/Documentation/leds/leds-lp5523.txt
@@ -27,25 +27,8 @@ c) Default
If both fields are NULL, 'lp5523' is used by default.
/sys/class/leds/lp5523:channelN (N: 0 ~ 8)
-The chip provides 3 engines. Each engine can control channels without
-interaction from the main CPU. Details of the micro engine code can be found
-from the public data sheet. Leds can be muxed to different channels.
-
-Control interface for the engines:
-x is 1 .. 3
-enginex_mode : disabled, load, run
-enginex_load : microcode load (visible only in load mode)
-enginex_leds : led mux control (visible only in load mode)
-
-cd /sys/class/leds/lp5523:channel2/device
-echo "load" > engine3_mode
-echo "9d80400004ff05ff437f0000" > engine3_load
-echo "111111111" > engine3_leds
-echo "run" > engine3_mode
-
-sysfs contains a selftest entry. It measures each channel
-voltage level and checks if it looks reasonable. If the level is too high,
-the led is missing; if the level is too low, there is a short circuit.
+LP5523 has the internal program memory for running various LED patterns.
+For the details, please refer to 'firmware' section in leds-lp55xx.txt
Selftest uses always the current from the platform data.
@@ -58,7 +41,7 @@ Example platform data:
Note - chan_nr can have values between 0 and 8.
-static struct lp5523_led_config lp5523_led_config[] = {
+static struct lp55xx_led_config lp5523_led_config[] = {
{
.name = "D1",
.chan_nr = 0,
@@ -88,10 +71,10 @@ static void lp5523_enable(bool state)
/* Control chip enable signal */
}
-static struct lp5523_platform_data lp5523_platform_data = {
+static struct lp55xx_platform_data lp5523_platform_data = {
.led_config = lp5523_led_config,
.num_channels = ARRAY_SIZE(lp5523_led_config),
- .clock_mode = LP5523_CLOCK_EXT,
+ .clock_mode = LP55XX_CLOCK_EXT,
.setup_resources = lp5523_setup,
.release_resources = lp5523_release,
.enable = lp5523_enable,