From 41e93a3087296b14e8f671010420bd29d07c989f Mon Sep 17 00:00:00 2001
From: Finn Thain <fthain@telegraphics.com.au>
Date: Sat, 12 Aug 2017 17:11:02 +1000
Subject: [PATCH] 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>
---
arch/m68k/mac/misc.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c
index 8aa8792e3174c4..944795fd2c7a1d 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();
}
--
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