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authorKim, Milo <Milo.Kim@ti.com>2012-09-12 14:16:00 +0200
committerBryan Wu <bryan.wu@canonical.com>2012-09-13 05:48:34 +0200
commit23301b7f1b8910fb3ba84935edbf665808f53871 (patch)
tree23713681b05dc740ee0fdf59f3c2f2b7f400df24 /drivers/leds
parentleds-lm3530: Fix smatch warnings (diff)
downloadlinux-23301b7f1b8910fb3ba84935edbf665808f53871.tar.xz
linux-23301b7f1b8910fb3ba84935edbf665808f53871.zip
leds-lp5523: turn off the LED engines on unloading the driver
The LP5523 has 3 engines which are used for running LED patterns. These engines should be off while unloading the driver. Obviously, LP5523 platform data are used for releasing the resource such like enable()/release_resource(), but these are not mandatory. Therefore this patch is required without the platform data dependency. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds-lp5523.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index 3d60428df643..5ebdc9245d59 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -997,6 +997,9 @@ static int lp5523_remove(struct i2c_client *client)
struct lp5523_chip *chip = i2c_get_clientdata(client);
int i;
+ /* Disable engine mode */
+ lp5523_write(client, LP5523_REG_OP_MODE, LP5523_CMD_DISABLED);
+
lp5523_unregister_sysfs(client);
for (i = 0; i < chip->num_leds; i++) {