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Subject[PATCH 1/4] leds-lp5521: add 'name' in the lp5521_led_config
The name of each led channel can be configurable.
For the compatibility, the name is set to default value(xx:channelN)
when 'name' is not defined.

* kernel patch based on 3.0.1

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
---
Documentation/leds/leds-lp5521.txt | 6 ++++++
drivers/leds/leds-lp5521.c | 11 ++++++++---
include/linux/leds-lp5521.h | 1 +
3 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/Documentation/leds/leds-lp5521.txt b/Documentation/leds/leds-lp5521.txt
index c4d8d15..f48ab75 100644
--- a/Documentation/leds/leds-lp5521.txt
+++ b/Documentation/leds/leds-lp5521.txt
@@ -43,17 +43,23 @@ Format: 10x mA i.e 10 means 1.0 mA
example platform data:

Note: chan_nr can have values between 0 and 2.
+The name of each channel can be configurable.
+If the name field is not defined, the default name will be set to 'xxxx:channelN'
+(XXXX : pdata->label or i2c client name, N : channel number)

static struct lp5521_led_config lp5521_led_config[] = {
{
+ .name = "red",
.chan_nr = 0,
.led_current = 50,
.max_current = 130,
}, {
+ .name = "green",
.chan_nr = 1,
.led_current = 0,
.max_current = 130,
}, {
+ .name = "blue",
.chan_nr = 2,
.led_current = 0,
.max_current = 130,
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index cc1dc48..c0e7c10 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -617,10 +617,15 @@ static int __devinit lp5521_init_led(struct lp5521_led *led,
return -EINVAL;
}

- snprintf(name, sizeof(name), "%s:channel%d",
- pdata->label ?: client->name, chan);
led->cdev.brightness_set = lp5521_set_brightness;
- led->cdev.name = name;
+ if (pdata->led_config[chan].name) {
+ led->cdev.name = pdata->led_config[chan].name;
+ } else {
+ snprintf(name, sizeof(name), "%s:channel%d",
+ pdata->label ?: client->name, chan);
+ led->cdev.name = name;
+ }
+
res = led_classdev_register(dev, &led->cdev);
if (res < 0) {
dev_err(dev, "couldn't register led on channel %d\n", chan);
diff --git a/include/linux/leds-lp5521.h b/include/linux/leds-lp5521.h
index fd548d2..e675b8d 100644
--- a/include/linux/leds-lp5521.h
+++ b/include/linux/leds-lp5521.h
@@ -26,6 +26,7 @@
/* See Documentation/leds/leds-lp5521.txt */

struct lp5521_led_config {
+ char *name;
u8 chan_nr;
u8 led_current; /* mA x10, 0 if led is not connected */
u8 max_current;
--
1.7.4.1
Best Regards,
Milo (Woogyom) Kim
Texas Instruments Incorporated



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