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extcon: Allow compile test of GPIO consumers if !GPIOLIB 

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.

Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.

If GPIOLIB=n and asm-generic/gpio.h is not used:

    drivers/extcon/extcon-usb-gpio.c: In function ‘usb_extcon_detect_cable’:
    drivers/extcon/extcon-usb-gpio.c:63: error: implicit declaration of function ‘gpiod_get_value_cansleep’
    drivers/extcon/extcon-usb-gpio.c: In function ‘usb_extcon_probe’:
    drivers/extcon/extcon-usb-gpio.c:116: error: implicit declaration of function ‘devm_gpiod_get’
    drivers/extcon/extcon-usb-gpio.c:116: warning: assignment makes pointer from integer without a cast
    drivers/extcon/extcon-usb-gpio.c:122: error: implicit declaration of function ‘gpiod_set_debounce’
    drivers/extcon/extcon-usb-gpio.c:129: error: implicit declaration of function ‘gpiod_to_irq’

Add the missing #include <linux/gpio/consumer.h> to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Geert Uytterhoeven 2015-05-05 18:32:20 +02:00 committed by Chanwoo Choi
parent c571bbb4b6
commit 638f958bae
2 changed files with 3 additions and 2 deletions
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4
drivers/extcon/Kconfig
View File

@ -37,7 +37,7 @@ config EXTCON_AXP288
config EXTCON_GPIO
tristate "GPIO extcon support"
depends on GPIOLIB
depends on GPIOLIB || COMPILE_TEST
help
Say Y here to enable GPIO based extcon support. Note that GPIO
extcon supports single state per extcon instance.
@ -112,7 +112,7 @@ config EXTCON_SM5502
config EXTCON_USB_GPIO
tristate "USB GPIO extcon support"
depends on GPIOLIB
depends on GPIOLIB || COMPILE_TEST
help
Say Y here to enable GPIO based USB cable detection extcon support.
Used typically if GPIO is used for USB ID pin detection.

1
drivers/extcon/extcon-usb-gpio.c
View File

@ -15,6 +15,7 @@
*/
#include <linux/extcon.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>