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authorDavid S. Miller <davem@davemloft.net>2013-07-04 01:50:41 +0400
committerDavid S. Miller <davem@davemloft.net>2013-07-04 01:55:13 +0400
commit0c1072ae0242fbdffd9a0bba36e7a7033d287f9c (patch)
treee0f4dbdbf5078d4a707911177e7bdc17a70bdce5 /drivers/acpi/device_pm.c
parentc50cd357887acf9fd7af3a5d492911bd825555a2 (diff)
parent8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff)
downloadlinux-0c1072ae0242fbdffd9a0bba36e7a7033d287f9c.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/freescale/fec_main.c drivers/net/ethernet/renesas/sh_eth.c net/ipv4/gre.c The GRE conflict is between a bug fix (kfree_skb --> kfree_skb_list) and the splitting of the gre.c code into seperate files. The FEC conflict was two sets of changes adding ethtool support code in an "!CONFIG_M5272" CPP protected block. Finally the sh_eth.c conflict was between one commit add bits set in the .eesr_err_check mask whilst another commit removed the .tx_error_check member and assignments. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/acpi/device_pm.c')
-rw-r--r--drivers/acpi/device_pm.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 318fa32a141e..31c217a42839 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -290,6 +290,26 @@ int acpi_bus_init_power(struct acpi_device *device)
return 0;
}
+/**
+ * acpi_device_fix_up_power - Force device with missing _PSC into D0.
+ * @device: Device object whose power state is to be fixed up.
+ *
+ * Devices without power resources and _PSC, but having _PS0 and _PS3 defined,
+ * are assumed to be put into D0 by the BIOS. However, in some cases that may
+ * not be the case and this function should be used then.
+ */
+int acpi_device_fix_up_power(struct acpi_device *device)
+{
+ int ret = 0;
+
+ if (!device->power.flags.power_resources
+ && !device->power.flags.explicit_get
+ && device->power.state == ACPI_STATE_D0)
+ ret = acpi_dev_pm_explicit_set(device, ACPI_STATE_D0);
+
+ return ret;
+}
+
int acpi_bus_update_power(acpi_handle handle, int *state_p)
{
struct acpi_device *device;