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authorMatthew Garrett <mjg@redhat.com>2011-11-11 22:05:54 +0100
committerJens Axboe <axboe@kernel.dk>2011-11-11 22:05:54 +0100
commit193733585692301f38d489b8ad8724c2f88349c0 (patch)
tree85a00825178aa915e5f7e38f338c59951546c802
parent7a401a972df8e184b3d1a3fc958c0a4ddee8d312 (diff)
The Windows driver .inf disables ASPM on all cciss devices. Do the same.
Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: iss_storagedev@hp.com Acked-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/block/cciss.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 486f94ef24d..5b690194dd9 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -24,6 +24,7 @@
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/pci.h>
+#include <linux/pci-aspm.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/delay.h>
@@ -4319,6 +4320,10 @@ static int __devinit cciss_pci_init(ctlr_info_t *h)
dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
return -ENODEV;
}
+
+ pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
+ PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
+
err = pci_enable_device(h->pdev);
if (err) {
dev_warn(&h->pdev->dev, "Unable to Enable PCI device\n");