[PATCH] leds: fix module build error for LP55xx common driver

[Kim, Milo]

To solve undefined symbol errors for LED class and I2C, lp55xx-common driver
should support a module build as well.

make x86_64 allmodconfig failed like this:

drivers/built-in.o: In function `lp55xx_unregister_leds':
(.text+0x161dab): undefined reference to `led_classdev_unregister'

drivers/built-in.o: In function `lp55xx_init_led':
leds-lp55xx-common.c:(.text+0x161f23): undefined reference to `led_classdev_register'
leds-lp55xx-common.c:(.text+0x161f9f): undefined reference to `led_classdev_unregister'

drivers/built-in.o: In function `lp55xx_read':
(.text+0x1621b3): undefined reference to `i2c_smbus_read_byte_data'
drivers/built-in.o: In function `lp55xx_init_device':
(.text+0x1622f0): undefined reference to `i2c_smbus_write_byte_data'
drivers/built-in.o: In function `lp55xx_init_device':
(.text+0x162331): undefined reference to `i2c_smbus_write_byte_data'
drivers/built-in.o: In function `lp55xx_update_bits':
(.text+0x162492): undefined reference to `i2c_smbus_write_byte_data'
drivers/built-in.o: In function `lp55xx_write':
(.text+0x1624c5): undefined reference to `i2c_smbus_write_byte_data'

Signed-off-by: Milo(Woogyom) Kim <milo.kim@xxxxxx>
---
 drivers/leds/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index c7c5280..bba1bac 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -194,7 +194,7 @@ config LEDS_LP3944
 	  module will be called leds-lp3944.
 
 config LEDS_LP55XX_COMMON
-	bool "Common Driver for TI/National LP5521 and LP5523/55231"
+	tristate "Common Driver for TI/National LP5521 and LP5523/55231"
 	depends on LEDS_LP5521 || LEDS_LP5523
 	depends on I2C
 	select FW_LOADER
-- 
1.7.9.5


Best Regards,
Milo


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