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authorFinn Thain <fthain@telegraphics.com.au>2017-08-12 10:11:02 +0300
committerGeert Uytterhoeven <geert@linux-m68k.org>2017-08-21 12:52:55 +0300
commit41e93a3087296b14e8f671010420bd29d07c989f (patch)
treea2ab5d709bc3ab2db6e45792776411a2e4ef0ee7 /arch/m68k
parent07144be9c156103e19a336c35213bd393392d401 (diff)
downloadlinux-41e93a3087296b14e8f671010420bd29d07c989f.tar.xz
m68k/mac: Don't hang waiting for Cuda power-down command
Testing shows that the CUDA_POWERDOWN command never completes (for a Centris 660av or LC 475, at least). So, don't wait for command completion on those Cuda-based models that do not support soft power. Just proceed to log the usual message, "It is now safe to turn off your Macintosh." Reported-by: Stan Johnson <userm57@yahoo.com> Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/mac/misc.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c
index 8aa8792e3174..944795fd2c7a 100644
--- a/arch/m68k/mac/misc.c
+++ b/arch/m68k/mac/misc.c
@@ -357,6 +357,17 @@ static void cuda_shutdown(void)
struct adb_request req;
if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN) < 0)
return;
+
+ /* Avoid infinite polling loop when PSU is not under Cuda control */
+ switch (macintosh_config->ident) {
+ case MAC_MODEL_C660:
+ case MAC_MODEL_Q605:
+ case MAC_MODEL_Q605_ACC:
+ case MAC_MODEL_P475:
+ case MAC_MODEL_P475F:
+ return;
+ }
+
while (!req.complete)
cuda_poll();
}