The samsung PWM driver has moved to the new PWM subsystem, which changed the Kconfig symbol for that driver, but the rx1950 and gta02 boards still uses the old one.
Without this patch, building s3c2410_defconfig results in: arch/arm/mach-s3c24xx/built-in.o: In function `rx1950_lcd_power': arch/arm/mach-s3c24xx/mach-rx1950.c:430: undefined reference to `pwm_config' arch/arm/mach-s3c24xx/mach-rx1950.c:431: undefined reference to `pwm_disable' arch/arm/mach-s3c24xx/mach-rx1950.c:437: undefined reference to `pwm_config' arch/arm/mach-s3c24xx/mach-rx1950.c:438: undefined reference to `pwm_enable' arch/arm/mach-s3c24xx/built-in.o: In function `rx1950_backlight_exit': arch/arm/mach-s3c24xx/mach-rx1950.c:504: undefined reference to `pwm_free' arch/arm/mach-s3c24xx/built-in.o: In function `rx1950_backlight_init': arch/arm/mach-s3c24xx/mach-rx1950.c:487: undefined reference to `pwm_request' Signed-off-by: Arnd Bergmann <a...@arndb.de> --- arch/arm/mach-s3c24xx/Kconfig | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig index e249611..422133a 100644 --- a/arch/arm/mach-s3c24xx/Kconfig +++ b/arch/arm/mach-s3c24xx/Kconfig @@ -483,7 +483,8 @@ config MACH_NEO1973_GTA02 select I2C select POWER_SUPPLY select MACH_NEO1973 - select S3C2410_PWM + select PWM + select PWM_SAMSUNG select S3C_DEV_USB_HOST help Say Y here if you are using the Openmoko GTA02 / Freerunner GSM Phone @@ -493,7 +494,8 @@ config MACH_RX1950 select S3C24XX_DCLK select PM_H1940 if PM select I2C - select S3C2410_PWM + select PWM + select PWM_SAMSUNG select S3C_DEV_NAND select S3C2410_IOTIMING if S3C2440_CPUFREQ select S3C2440_XTAL_16934400 -- 1.7.10 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/