The name of each led channel is configurable.
If the name is NULL, just use the channel id for making the channel name
Signed-off-by: Milo(Woogyom) Kim <milo.kim@xxxxxx>
---
Documentation/leds/leds-lp5523.txt | 21 ++++++++++++++++++---
drivers/leds/leds-lp5523.c | 10 +++++++---
include/linux/leds-lp5523.h | 1 +
3 files changed, 26 insertions(+), 6 deletions(-)
diff --git a/Documentation/leds/leds-lp5523.txt b/Documentation/leds/leds-lp5523.txt
index fad2feb..c2743f5 100644
--- a/Documentation/leds/leds-lp5523.txt
+++ b/Documentation/leds/leds-lp5523.txt
@@ -10,8 +10,22 @@ Contact: Samu Onkalo (samu.p.onkalo-at-nokia.com)
Description
-----------
LP5523 can drive up to 9 channels. Leds can be controlled directly via
-the led class control interface. Channels have generic names:
-lp5523:channelx where x is 0...8
+the led class control interface.
+The name of each channel is configurable in the platform data - name and label.
+There are three options to make the channel name.
+
+a) Define the 'name' in the platform data
+To make specific channel name, then use 'name' platform data.
+/sys/class/leds/R1 (name: 'R1')
+/sys/class/leds/B1 (name: 'B1')
+
+b) Use the 'label' with no 'name' field
+For one device name with channel number, then use 'label'.
+/sys/class/leds/RGB:channelN (label: 'RGB', N: 0 ~ 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
@@ -46,12 +60,13 @@ Note - chan_nr can have values between 0 and 8.
static struct lp5523_led_config lp5523_led_config[] = {
{
+ .name = "D1",
.chan_nr = 0,
.led_current = 50,
.max_current = 130,
},
...
- }, {
+ {
.chan_nr = 8,
.led_current = 50,
.max_current = 130,
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index fbc12ac..9fd9a92 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -846,10 +846,14 @@ static int __devinit lp5523_init_led(struct lp5523_led *led, struct device *dev,
return -EINVAL;
}
- snprintf(name, sizeof(name), "%s:channel%d",
- pdata->label ?: "lp5523", chan);
+ if (pdata->led_config[chan].name) {
+ led->cdev.name = pdata->led_config[chan].name;
+ } else {
+ snprintf(name, sizeof(name), "%s:channel%d",
+ pdata->label ?: "lp5523", chan);
+ led->cdev.name = name;
+ }
- led->cdev.name = name;
led->cdev.brightness_set = lp5523_set_brightness;
res = led_classdev_register(dev, &led->cdev);
if (res < 0) {
diff --git a/include/linux/leds-lp5523.h b/include/linux/leds-lp5523.h
index 2694289..727877f 100644
--- a/include/linux/leds-lp5523.h
+++ b/include/linux/leds-lp5523.h
@@ -26,6 +26,7 @@
/* See Documentation/leds/leds-lp5523.txt */
struct lp5523_led_config {
+ const char *name;
u8 chan_nr;
u8 led_current; /* mA x10, 0 if led is not connected */
u8 max_current;
--
1.7.2.5
Best Regards,
Milo
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