LM3639 has not only pins for backlihgt but also pins for LEDs. So it
uses functions in led_class and led_core file.
When I see your config file, "randconig", you set CONFIG_NEW_LEDS=y but
you didn't set CONFIG_LEDS_CLASS.
We need to set CONFIG_NEW_LEDS and CONFIG_LEDS_CLASS both to compile it.
To fix it, I added two reverse dependencies "select NEW_LEDS" and
"select CONFIG_LEDS_CLASS".
2012년 09월 10일 14:28, Randy Dunlap 쓴 글:
On 09/09/2012 08:16 PM, G.Shark Jeong wrote:
From: "G.Shark Jeong" <gshark.je...@gmail.com>
This driver is a general version for LM3639 backlgiht driver chip of TI.
Put NEW_LEDS and LEDS_CLASS into Kconfig file to reduce additional
configuration works in LEDs.
www.ti.com
eh?
Signed-off-by: G.Shark Jeong <gshark.je...@gmail.com>
Linus has asked patch committers to use Reported-by when appropriate.
Reported-by: Randy Dunlap <rdun...@xenotime.net>
Acked-by: Randy Dunlap <rdun...@xenotime.net>
---
drivers/video/backlight/Kconfig | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 2ed68bd..e6c78cd 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -356,6 +356,8 @@ config BACKLIGHT_LM3639
tristate "Backlight Driver for LM3639"
depends on BACKLIGHT_CLASS_DEVICE && I2C
select REGMAP_I2C
+ select NEW_LEDS
+ select LEDS_CLASS
help
This supports TI LM3639 Backlight + 1.5A Flash LED Driver
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