On Sun, Dec 20, 2015 at 05:42:08PM +0000, One Thousand Gnomes wrote: > > So then should I rewrite it as MFD or should it be like the way you > > suggested in the other mail to have it as bool in the Kconfig and combine > > the file with 8250_pci.c when the symbol is selected? > > Yes although I'm really not sure which is the best approach of the two. Hi Alan and Andy, I was trying like: diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index 6412f14..ec3d287 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -378,3 +378,11 @@ config SERIAL_8250_MID Selecting this option will enable handling of the extra features present on the UART found on Intel Medfield SOC and various other Intel platforms. + +config SERIAL_8250_EXAR_GPIO + bool "Support for GPIO pins on XR17V352/354/358" + depends on SERIAL_8250_PCI && GPIOLIB + select GPIO_SYSFS + help + Selecting this option will enable handling of GPIO pins present + on Exar XR17V352/354/358 chips. diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile index e177f86..1d0fce0 100644 --- a/drivers/tty/serial/8250/Makefile +++ b/drivers/tty/serial/8250/Makefile @@ -28,5 +28,8 @@ obj-$(CONFIG_SERIAL_8250_MT6577) += 8250_mtk.o obj-$(CONFIG_SERIAL_8250_UNIPHIER) += 8250_uniphier.o obj-$(CONFIG_SERIAL_8250_INGENIC) += 8250_ingenic.o obj-$(CONFIG_SERIAL_8250_MID) += 8250_mid.o +obj-$(CONFIG_SERIAL_8250_EXAR_GPIO) += exar_gpio.o +exar_gpio-y := 8250_pci.o 8250_gpio.o + CFLAGS_8250_ingenic.o += -I$(srctree)/scripts/dtc/libfdt But I am getting: ERROR: "xr17v35x_gpio_exit" [drivers/tty/serial/8250/8250_pci.ko] undefined! ERROR: "xr17v35x_gpio_init" [drivers/tty/serial/8250/8250_pci.ko] undefined! I will need little hint for the Makefile, please. Its clear that i have messed up. regards sudip -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
