input/joystick: use get_cycles on ARM

ARM normally has an accurate clock source, so
we can theoretically use analog joysticks more
accurately and at the same time avoid the
build warning

 #warning Precise timer not defined for this architecture.

from the joystick driver.

Now, why anybody would use that driver no ARM I have no
idea, but Ben Dooks enabled it in the s3c2410_defconfig
along with a bunch of other drivers, even though that
platform has neither ISA nor PCI support. It still
seems to be the right thing to fix this quirk.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Ben Dooks <ben-linux@fluff.org>

diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c
index 7cd74e2..9135606 100644 (file)
--- a/drivers/input/joystick/analog.c
+++ b/drivers/input/joystick/analog.c
@@ -158,14 +158,10 @@ static unsigned int get_time_pit(void)
 #define GET_TIME(x)    rdtscl(x)
 #define DELTA(x,y)     ((y)-(x))
 #define TIME_NAME      "TSC"
-#elif defined(__alpha__)
+#elif defined(__alpha__) || defined(CONFIG_MN10300) || defined(CONFIG_ARM) || defined(CONFIG_TILE)
 #define GET_TIME(x)    do { x = get_cycles(); } while (0)
 #define DELTA(x,y)     ((y)-(x))
-#define TIME_NAME      "PCC"
-#elif defined(CONFIG_MN10300) || defined(CONFIG_TILE)
-#define GET_TIME(x)    do { x = get_cycles(); } while (0)
-#define DELTA(x, y)    ((x) - (y))
-#define TIME_NAME      "TSC"
+#define TIME_NAME      "get_cycles"
 #else
 #define FAKE_TIME
 static unsigned long analog_faketime = 0;