diff options
| author | Andrew Patterson <andrew.patterson@hp.com> | 2008-11-10 15:30:55 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-01-07 11:12:29 -0800 |
| commit | 3e1b16002af29758b6bc9c38939d43838d9335bc (patch) | |
| tree | 6782f844e3813355280ad3367c58d90d576901f2 /drivers/pci/pcie | |
| parent | 0ef5f8f6159e44b4faa997be08d1a3bcbf44ad08 (diff) | |
ACPI/PCI: PCIe ASPM _OSC support capabilities called when root bridge added
The _OSC capabilities OSC_ACTIVE_STATE_PWR_SUPPORT and
OSC_CLOCK_PWR_CAPABILITY_SUPPORT are set when the root bridge is added
with pci_acpi_osc_support(), so we no longer need to do it in the ASPM
driver. Also add the function pcie_aspm_enabled, which returns true if
pcie_aspm=off is not on the kernel command-line.
Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 27 |
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); |