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intel_ips: blacklist HP ProBook laptops

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commit 88ca518b0b upstream.

intel_ips driver spews the warning message
  "ME failed to update for more than 1s, likely hung"
at each second endlessly on HP ProBook laptops with IronLake.

As this has never worked, better to blacklist the driver for now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Takashi Iwai
2012-06-25 15:07:17 +02:00
committed by Greg Kroah-Hartman
parent 64428b015e
commit 19b0759e73
1 changed files with 22 additions and 0 deletions
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22
drivers/platform/x86/intel_ips.c
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@@ -72,6 +72,7 @@
#include <linux/string.h>
#include <linux/tick.h>
#include <linux/timer.h>
#include <linux/dmi.h>
#include <drm/i915_drm.h>
#include <asm/msr.h>
#include <asm/processor.h>
@@ -1505,6 +1506,24 @@ static DEFINE_PCI_DEVICE_TABLE(ips_id_table) = {
MODULE_DEVICE_TABLE(pci, ips_id_table);
static int ips_blacklist_callback(const struct dmi_system_id *id)
{
pr_info("Blacklisted intel_ips for %s\n", id->ident);
return 1;
}
static const struct dmi_system_id ips_blacklist[] = {
{
.callback = ips_blacklist_callback,
.ident = "HP ProBook",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook"),
},
},
{ } /* terminating entry */
};
static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
u64 platform_info;
@@ -1514,6 +1533,9 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id)
u16 htshi, trc, trc_required_mask;
u8 tse;
if (dmi_check_system(ips_blacklist))
return -ENODEV;
ips = kzalloc(sizeof(struct ips_driver), GFP_KERNEL);
if (!ips)
return -ENOMEM;