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authorRyan Kennedy <ryan5544@gmail.com>2017-07-15 17:48:18 -0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-07-26 02:09:41 +0200
commit31e86cb99a3af0653f0e317fdd9c05b530c70af8 (patch)
tree2ddfc48c0d39f46a6618d6f5108000a265bfa633 /drivers/acpi
parent520eccdfe187591a51ea9ab4c1a024ae4d0f68d9 (diff)
downloadblackbird-obmc-linux-31e86cb99a3af0653f0e317fdd9c05b530c70af8.tar.gz
blackbird-obmc-linux-31e86cb99a3af0653f0e317fdd9c05b530c70af8.zip
ACPI / watchdog: Fix init failure with overlapping register regions
Partially overlapping regions cause platform device creation to fail. The latter of two overlapping resources will fail to be reserved. Fix this by merging overlapping resource ranges while enumerating WDAT table entries. Signed-off-by: Ryan Kennedy <ryan5544@gmail.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/acpi_watchdog.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 8c4e0a18460a..bf22c29d2517 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -86,7 +86,12 @@ void __init acpi_watchdog_init(void)
found = false;
resource_list_for_each_entry(rentry, &resource_list) {
- if (resource_contains(rentry->res, &res)) {
+ if (rentry->res->flags == res.flags &&
+ resource_overlaps(rentry->res, &res)) {
+ if (res.start < rentry->res->start)
+ rentry->res->start = res.start;
+ if (res.end > rentry->res->end)
+ rentry->res->end = res.end;
found = true;
break;
}
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