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authorColin Leroy <colin@colino.net>2005-05-25 12:31:34 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-25 15:31:29 -0700
commita8bacec09352b86bd389cc93a20008577fa14764 (patch)
tree608170ccc532ea2b96f1a5f073ae154cb8ce80fc /drivers/macintosh/therm_adt746x.c
parent3bf4fb820d7382318d178bd765c20028415466ab (diff)
downloadlinux-2.6.34-ux500-a8bacec09352b86bd389cc93a20008577fa14764.tar.gz
[PATCH] Make sure therm_adt746x only handles known hardware
This patch limits therm_adt746x to currently existing fan controllers in Apple laptops. It may avoid problems with future hardware. Signed-off-by: Colin Leroy <colin@colino.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/macintosh/therm_adt746x.c')
-rw-r--r--drivers/macintosh/therm_adt746x.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index e0ac63effa5..c7e84abe895 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -545,6 +545,12 @@ thermostat_init(void)
else
return -ENODEV;
+ prop = (u32 *)get_property(np, "hwsensor-params-version", NULL);
+ printk(KERN_INFO "adt746x: version %d (%ssupported)\n", *prop,
+ (*prop == 1)?"":"un");
+ if (*prop != 1)
+ return -ENODEV;
+
prop = (u32 *)get_property(np, "reg", NULL);
if (!prop)
return -ENODEV;