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path: root/drivers/pci/pcie
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Diffstat (limited to 'drivers/pci/pcie')
-rw-r--r--drivers/pci/pcie/aspm.c27
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 9aad608bcf3..e361c7dc726 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -857,24 +857,15 @@ void pcie_no_aspm(void)
aspm_disabled = 1;
}
-#ifdef CONFIG_ACPI
-#include <acpi/acpi_bus.h>
-#include <linux/pci-acpi.h>
-static void pcie_aspm_platform_init(void)
-{
- pcie_osc_support_set(OSC_ACTIVE_STATE_PWR_SUPPORT|
- OSC_CLOCK_PWR_CAPABILITY_SUPPORT);
-}
-#else
-static inline void pcie_aspm_platform_init(void) { }
-#endif
-
-static int __init pcie_aspm_init(void)
+/**
+ * pcie_aspm_enabled - is PCIe ASPM enabled?
+ *
+ * Returns true if ASPM has not been disabled by the command-line option
+ * pcie_aspm=off.
+ **/
+int pcie_aspm_enabled(void)
{
- if (aspm_disabled)
- return 0;
- pcie_aspm_platform_init();
- return 0;
+ return !aspm_disabled;
}
+EXPORT_SYMBOL(pcie_aspm_enabled);
-fs_initcall(pcie_aspm_init);