diff options
| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2019-05-03 11:44:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-03 18:14:30 +0200 |
| commit | 4c5bb6eb4055adcefaeb5da56dfbecf7df3695d7 (patch) | |
| tree | 752254169a10e3973a68f1bbfbf306b81fa95050 /drivers/hwtracing/intel_th/pci.c | |
| parent | aac8da65174a35749fcf21dbca4c1be314b562b5 (diff) | |
intel_th: Only report useful IRQs to subdevices
The only type of IRQ triggering event that is useful to us at the moment
is the "last block" interrupt of the MSU. This interrupt can only be
enabled via "MINTCTL" register that doesn't exist in earlier version of
the Intel TH.
Enumerate the presence of MINTCTL via per-device driver data structure
and only instantiate the IRQ resource for subdevices if this capability
is present.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/intel_th/pci.c')
| -rw-r--r-- | drivers/hwtracing/intel_th/pci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c index f5643444481b..5808dd4c104c 100644 --- a/drivers/hwtracing/intel_th/pci.c +++ b/drivers/hwtracing/intel_th/pci.c @@ -122,6 +122,7 @@ static void intel_th_pci_remove(struct pci_dev *pdev) static const struct intel_th_drvdata intel_th_2x = { .tscu_enable = 1, + .has_mintctl = 1, }; static const struct pci_device_id intel_th_pci_id_table[] = { |