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authorSrinidhi Kasagar <srinidhi.kasagar@intel.com>2015-06-19 06:22:46 (GMT)
committerBjorn Helgaas <bhelgaas@google.com>2015-07-14 18:36:25 (GMT)
commit4a118753d411d3e22a463361bb867c51d63ebe14 (patch)
treee625a792cab7f55970f1dea268f7c116d6b39d49 /drivers/pci/quirks.c
parentbc0195aad0daa2ad5b0d76cce22b167bc3435590 (diff)
downloadlinux-4a118753d411d3e22a463361bb867c51d63ebe14.tar.xz
PCI: Remove Intel Cherrytrail D3 delays
Just like Haswell, Intel Atom Cherrytrail does not need the default 10ms d3_delay imposed by the PCI specification. Expand quirk_remove_d3_delay() to apply to Cherrytrail devices, so we can ignore the 10ms delay before entering or exiting D3 suspend. [bhelgaas: changelog, comment] Signed-off-by: Srinidhi Kasagar <srinidhi.kasagar@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r--drivers/pci/quirks.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index e9fd0e9..1fd0ce8 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3028,7 +3028,16 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
-
+/* Intel Cherrytrail devices do not need 10ms d3_delay */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2280, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b0, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b8, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22d8, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22dc, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay);
/*
* Some devices may pass our check in pci_intx_mask_supported if
* PCI_COMMAND_INTX_DISABLE works though they actually do not properly