This is a note to let you know that I've just added the patch titled
mailbox: imx: fix suspend failue
to the 5.10-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:
mailbox-imx-fix-suspend-failue.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From mizo@xxxxxxxxxxxxxxxxx Mon Apr 15 13:17:44 2024
From: Daisuke Mizobuchi <mizo@xxxxxxxxxxxxxxxxx>
Date: Fri, 12 Apr 2024 14:21:33 +0900
Subject: mailbox: imx: fix suspend failue
To: stable@xxxxxxxxxxxxxxx
Message-ID: <20240412052133.1805029-1-mizo@xxxxxxxxxxxxxxxxx>
From: Daisuke Mizobuchi <mizo@xxxxxxxxxxxxxxxxx>
When an interrupt occurs, it always wakes up.
Suspend fails as follows:
armadillo:~# echo mem > /sys/power/state
[ 2614.602432] PM: suspend entry (deep)
[ 2614.610640] Filesystems sync: 0.004 seconds
[ 2614.618016] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 2614.626555] OOM killer disabled.
[ 2614.629792] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 2614.638456] printk: Suspending console(s) (use no_console_suspend to debug)
[ 2614.649504] PM: Some devices failed to suspend, or early wake event detected
[ 2614.730103] PM: resume devices took 0.080 seconds
[ 2614.741924] OOM killer enabled.
[ 2614.745073] Restarting tasks ... done.
[ 2614.754532] PM: suspend exit
ash: write error: Resource busy
armadillo:~#
Upstream is correct, so it seems to be a mistake in cheery-pick.
Cc: <stable@xxxxxxxxxxxxxxx>
Fixes: a16f5ae8ade1 ("mailbox: imx: fix wakeup failure from freeze mode")
Signed-off-by: Daisuke Mizobuchi <mizo@xxxxxxxxxxxxxxxxx>
Reviewed-by: Dominique Martinet <dominique.martinet@xxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mailbox/imx-mailbox.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/mailbox/imx-mailbox.c
+++ b/drivers/mailbox/imx-mailbox.c
@@ -331,8 +331,6 @@ static int imx_mu_startup(struct mbox_ch
break;
}
- priv->suspend = true;
-
return 0;
}
@@ -550,8 +548,6 @@ static int imx_mu_probe(struct platform_
clk_disable_unprepare(priv->clk);
- priv->suspend = false;
-
return 0;
disable_runtime_pm:
@@ -614,6 +610,8 @@ static int __maybe_unused imx_mu_suspend
if (!priv->clk)
priv->xcr = imx_mu_read(priv, priv->dcfg->xCR);
+ priv->suspend = true;
+
return 0;
}
@@ -632,6 +630,8 @@ static int __maybe_unused imx_mu_resume_
if (!imx_mu_read(priv, priv->dcfg->xCR) && !priv->clk)
imx_mu_write(priv, priv->xcr, priv->dcfg->xCR);
+ priv->suspend = false;
+
return 0;
}
Patches currently in stable-queue which might be from mizo@xxxxxxxxxxxxxxxxx are
queue-5.10/mailbox-imx-fix-suspend-failue.patch
