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;
