This is a note to let you know that I've just added the patch titled
mei: me: release hw from reset only during the reset flow
to the 3.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mei-me-release-hw-from-reset-only-during-the-reset-flow.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 663b7ee9517eec6deea9a48c7a1392a9a34f7809 Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Date: Sun, 25 Jan 2015 23:45:28 +0200
Subject: mei: me: release hw from reset only during the reset flow
From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
commit 663b7ee9517eec6deea9a48c7a1392a9a34f7809 upstream.
We might enter the interrupt handler with hw_ready already set,
but prior we actually started the reset flow.
To soleve this we move the reset release from the interrupt handler
to the HW start wait function which is part of the reset sequence.
Signed-off-by: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/misc/mei/hw-me.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -335,6 +335,7 @@ static int mei_me_hw_ready_wait(struct m
return -ETIME;
}
+ mei_me_hw_reset_release(dev);
dev->recvd_hw_ready = false;
return 0;
}
@@ -731,9 +732,7 @@ irqreturn_t mei_me_irq_thread_handler(in
/* check if we need to start the dev */
if (!mei_host_is_ready(dev)) {
if (mei_hw_is_ready(dev)) {
- mei_me_hw_reset_release(dev);
dev_dbg(dev->dev, "we need to start the dev.\n");
-
dev->recvd_hw_ready = true;
wake_up(&dev->wait_hw_ready);
} else {
Patches currently in stable-queue which might be from alexander.usyskin@xxxxxxxxx are
queue-3.19/mei-mask-interrupt-set-bit-on-clean-reset-bit.patch
queue-3.19/mei-me-release-hw-from-reset-only-during-the-reset-flow.patch
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