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authorDavid Shaohua Li <shaohua.li@intel.com>2005-03-19 00:16:18 -0500
committerLen Brown <len.brown@intel.com>2005-07-11 23:47:06 -0400
commitb913100d7304ea9596d8d85ab5f3ae04bd2b0ddb (patch)
tree270925a02dd83264fd5bd3a47fc39453798c39d5 /drivers/pci/pci.c
parent0f64474b8f7f1f7f3af5b24ef997baa35f923509 (diff)
downloadop-kernel-dev-b913100d7304ea9596d8d85ab5f3ae04bd2b0ddb.zip
op-kernel-dev-b913100d7304ea9596d8d85ab5f3ae04bd2b0ddb.tar.gz
[ACPI] pci_set_power_state() now calls
platform_pci_set_power_state() and ACPI can answer http://bugzilla.kernel.org/show_bug.cgi?id=4277 Signed-off-by: David Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 5af9418..a1c66e8 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -235,7 +235,7 @@ pci_find_parent_resource(const struct pci_dev *dev, struct resource *res)
* -EIO if device does not support PCI PM.
* 0 if we can successfully change the power state.
*/
-
+int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t t) = NULL;
int
pci_set_power_state(struct pci_dev *dev, pci_power_t state)
{
@@ -299,8 +299,15 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
msleep(10);
else if (state == PCI_D2 || dev->current_state == PCI_D2)
udelay(200);
- dev->current_state = state;
+ /*
+ * Give firmware a chance to be called, such as ACPI _PRx, _PSx
+ * Firmware method after natice method ?
+ */
+ if (platform_pci_set_power_state)
+ platform_pci_set_power_state(dev, state);
+
+ dev->current_state = state;
return 0;
}
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