This is a note to let you know that I've just added the patch titled
serial: qcom-geni: drop bogus runtime pm state update
to the 6.4-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:
serial-qcom-geni-drop-bogus-runtime-pm-state-update.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4dd8752a14ca0303fbdf0a6c68ff65f0a50bd2fa Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
Date: Thu, 13 Jul 2023 16:57:41 +0200
Subject: serial: qcom-geni: drop bogus runtime pm state update
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
commit 4dd8752a14ca0303fbdf0a6c68ff65f0a50bd2fa upstream.
The runtime PM state should not be changed by drivers that do not
implement runtime PM even if it happens to work around a bug in PM core.
With the wake irq arming now fixed, drop the bogus runtime PM state
update which left the device in active state (and could potentially
prevent a parent device from suspending).
Fixes: f3974413cf02 ("tty: serial: qcom_geni_serial: Wakeup IRQ cleanup")
Cc: 5.6+ <stable@xxxxxxxxxxxxxxx> # 5.6+
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/qcom_geni_serial.c | 7 -------
1 file changed, 7 deletions(-)
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -1676,13 +1676,6 @@ static int qcom_geni_serial_probe(struct
if (ret)
return ret;
- /*
- * Set pm_runtime status as ACTIVE so that wakeup_irq gets
- * enabled/disabled from dev_pm_arm_wake_irq during system
- * suspend/resume respectively.
- */
- pm_runtime_set_active(&pdev->dev);
-
if (port->wakeup_irq > 0) {
device_init_wakeup(&pdev->dev, true);
ret = dev_pm_set_dedicated_wake_irq(&pdev->dev,
Patches currently in stable-queue which might be from johan+linaro@xxxxxxxxxx are
queue-6.4/serial-qcom-geni-drop-bogus-runtime-pm-state-update.patch
