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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-07-01 17:57:25 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-07-01 17:57:25 +1000
commit24a72acac155576d630cf4304fa9cefb9b62ea1f (patch)
tree84d09427b319c613512316c658a3f6d6d8fe3dd1 /drivers/acpi/acpi_lpss.c
parent6e0b8bc965d25a8e0701eaca3fca5941b4f4b2b2 (diff)
parent8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff)
downloadblackbird-op-linux-24a72acac155576d630cf4304fa9cefb9b62ea1f.tar.gz
blackbird-op-linux-24a72acac155576d630cf4304fa9cefb9b62ea1f.zip
Merge tag 'v3.10' into next
Merge 3.10 in order to get some of the last minute powerpc changes, resolve conflicts and add additional fixes on top of them.
Diffstat (limited to 'drivers/acpi/acpi_lpss.c')
-rw-r--r--drivers/acpi/acpi_lpss.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 652fd5ce303c..cab13f2fc28e 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -164,15 +164,24 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
if (dev_desc->clk_required) {
ret = register_device_clock(adev, pdata);
if (ret) {
- /*
- * Skip the device, but don't terminate the namespace
- * scan.
- */
- kfree(pdata);
- return 0;
+ /* Skip the device, but continue the namespace scan. */
+ ret = 0;
+ goto err_out;
}
}
+ /*
+ * This works around a known issue in ACPI tables where LPSS devices
+ * have _PS0 and _PS3 without _PSC (and no power resources), so
+ * acpi_bus_init_power() will assume that the BIOS has put them into D0.
+ */
+ ret = acpi_device_fix_up_power(adev);
+ if (ret) {
+ /* Skip the device, but continue the namespace scan. */
+ ret = 0;
+ goto err_out;
+ }
+
adev->driver_data = pdata;
ret = acpi_create_platform_device(adev, id);
if (ret > 0)
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