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drivers/leds/leds-lp5521.c: 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.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Arun MURTHY <arun.murthy@stericsson.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kim, Milo 2012-03-23 15:02:08 -07:00 committed by Linus Torvalds
parent c5bd2a712a
commit 5ae4e8a77d
3 changed files with 15 additions and 3 deletions
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6
Documentation/leds/leds-lp5521.txt
View File

@ -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,

11
drivers/leds/leds-lp5521.c
View File

@ -620,10 +620,15 @@ 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);

1
include/linux/leds-lp5521.h
View File

@ -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;