This is a note to let you know that I've just added the patch titled
Revert "ACPI / LPSS: allow to use specific PM domain during ->probe()"
to the 4.4-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:
revert-acpi-lpss-allow-to-use-specific-pm-domain-during-probe.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b5f88dd1d6efc472e35ca1b21a44e662c5422088 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Fri, 4 Dec 2015 23:49:18 +0200
Subject: Revert "ACPI / LPSS: allow to use specific PM domain during ->probe()"
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
commit b5f88dd1d6efc472e35ca1b21a44e662c5422088 upstream.
The specific power domain can't be used in a way provided by the commit
01ac170ba29a, i.e. pointer to platform device is a subject to change during
unbound / bind cycle.
This reverts commit 01ac170ba29a9903ee590e1ef2d8e6b27b49a16c.
Fixes: 3df2da968744 (Revert "ACPI / LPSS: introduce a 'proxy' device to power on LPSS for DMA")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/acpi/acpi_lpss.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -704,8 +704,13 @@ static int acpi_lpss_platform_notify(str
}
switch (action) {
- case BUS_NOTIFY_ADD_DEVICE:
+ case BUS_NOTIFY_BOUND_DRIVER:
pdev->dev.pm_domain = &acpi_lpss_pm_domain;
+ break;
+ case BUS_NOTIFY_UNBOUND_DRIVER:
+ pdev->dev.pm_domain = NULL;
+ break;
+ case BUS_NOTIFY_ADD_DEVICE:
if (pdata->dev_desc->flags & LPSS_LTR)
return sysfs_create_group(&pdev->dev.kobj,
&lpss_attr_group);
@@ -713,7 +718,6 @@ static int acpi_lpss_platform_notify(str
case BUS_NOTIFY_DEL_DEVICE:
if (pdata->dev_desc->flags & LPSS_LTR)
sysfs_remove_group(&pdev->dev.kobj, &lpss_attr_group);
- pdev->dev.pm_domain = NULL;
break;
default:
break;
Patches currently in stable-queue which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
queue-4.4/alsa-fm801-propagate-tuner_only-bit-when-autodetected.patch
queue-4.4/alsa-fm801-explicitly-free-irq-line.patch
queue-4.4/revert-acpi-lpss-allow-to-use-specific-pm-domain-during-probe.patch
queue-4.4/usb-gadged-pch_udc-get-rid-of-redundant-assignments.patch
queue-4.4/alsa-fm801-detect-fm-only-card-earlier.patch
