[RFC 07/32] Input: gameport: add ISA and HAS_IOPORT dependencies
From: Niklas Schnelle <schnelle@linux.ibm.com>
Date: 2021-12-27 16:44:21
Also in:
linux-input, linux-pci, linux-riscv, lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. As ISA already implies HAS_IOPORT we can simply add this dependency and guard sections of code using inb()/outb() as alternative access methods. Co-developed-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> --- drivers/input/gameport/Kconfig | 2 ++ include/linux/gameport.h | 9 +++++++-- 2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/input/gameport/Kconfig b/drivers/input/gameport/Kconfig
index 082280f95333..366a2723e9a0 100644
--- a/drivers/input/gameport/Kconfig
+++ b/drivers/input/gameport/Kconfig@@ -25,6 +25,7 @@ if GAMEPORT config GAMEPORT_NS558 tristate "Classic ISA and PnP gameport support" + depends on ISA help Say Y here if you have an ISA or PnP gameport.
@@ -35,6 +36,7 @@ config GAMEPORT_NS558 config GAMEPORT_L4 tristate "PDPI Lightning 4 gamecard support" + depends on ISA help Say Y here if you have a PDPI Lightning 4 gamecard.
diff --git a/include/linux/gameport.h b/include/linux/gameport.h
index 69081d899492..9e55ac748a86 100644
--- a/include/linux/gameport.h
+++ b/include/linux/gameport.h@@ -167,16 +167,21 @@ static inline void gameport_trigger(struct gameport *gameport) { if (gameport->trigger) gameport->trigger(gameport); +#ifdef CONFIG_HAS_IOPORT else outb(0xff, gameport->io); +#endif } static inline unsigned char gameport_read(struct gameport *gameport) { if (gameport->read) return gameport->read(gameport); - else - return inb(gameport->io); +#ifdef CONFIG_HAS_IOPORT + return inb(gameport->io); +#else + return 0xff; +#endif } static inline int gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
--
2.32.0