summaryrefslogtreecommitdiff
path: root/drivers/acpi/glue.c
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-23 15:38:08 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-23 15:38:08 +0100
commite3e9fc7fa7ad221cc2e7b207d514cc84ed393251 (patch)
tree7de34df1844075bd3ed0391546d74ae9dab5fcae /drivers/acpi/glue.c
parentdd2f003e4e85b154754d5a83e0c3b1b517d1f802 (diff)
parent2241ab53cbb5cdb08a6b2d4688feb13971058f65 (diff)
Merge 6.2-rc5 into usb-next
We need the USB fixes in here and this resolves merge conflicts as reported in linux-next in the following files: drivers/usb/host/xhci.c drivers/usb/host/xhci.h drivers/usb/typec/ucsi/ucsi.c Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi/glue.c')
-rw-r--r--drivers/acpi/glue.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 204fe94c7e45..a194f30876c5 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -75,7 +75,8 @@ static struct acpi_bus_type *acpi_get_bus_type(struct device *dev)
}
#define FIND_CHILD_MIN_SCORE 1
-#define FIND_CHILD_MAX_SCORE 2
+#define FIND_CHILD_MID_SCORE 2
+#define FIND_CHILD_MAX_SCORE 3
static int match_any(struct acpi_device *adev, void *not_used)
{
@@ -96,8 +97,17 @@ static int find_child_checks(struct acpi_device *adev, bool check_children)
return -ENODEV;
status = acpi_evaluate_integer(adev->handle, "_STA", NULL, &sta);
- if (status == AE_NOT_FOUND)
+ if (status == AE_NOT_FOUND) {
+ /*
+ * Special case: backlight device objects without _STA are
+ * preferred to other objects with the same _ADR value, because
+ * it is more likely that they are actually useful.
+ */
+ if (adev->pnp.type.backlight)
+ return FIND_CHILD_MID_SCORE;
+
return FIND_CHILD_MIN_SCORE;
+ }
if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_ENABLED))
return -ENODEV;