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PCI ASPM: do not clear enabled field by support field

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We must not clear bits in 'aspm_enabled' using 'aspm_support', or
'aspm_enabled' and 'aspm_default' might be different from the actual
state. In addtion, 'aspm_default' should be intialized even if
'aspm_support' is 0.

Acked-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Kenji Kaneshige 2009-08-19 10:57:31 +09:00 committed by Jesse Barnes
parent 6f1186be4f
commit b127bd55d9
1 changed files with 3 additions and 3 deletions
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6
drivers/pci/pcie/aspm.c
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@ -346,12 +346,12 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
link->latency.l0s = max_t(u32, link->latency.l0s, l0s);
link->latency.l1 = max_t(u32, link->latency.l1, l1);
/* Save default state */
link->aspm_default = link->aspm_enabled;
if (!link->aspm_support)
return;
link->aspm_enabled &= link->aspm_support;
link->aspm_default = link->aspm_enabled;
/* ENDPOINT states*/
list_for_each_entry(child, &linkbus->devices, bus_list) {
int pos;