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| author | Aleksandr Bezzubikov <zuban32s@gmail.com> | 2017-07-18 17:12:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-27 15:43:19 +0300 |
| commit | 8061afaf1269a5988705fe8167a8c07d3b891028 (patch) | |
| tree | bdb22fb1979d169daa9309db4702a866e6d37fa2 /drivers/iio/industrialio-event.c | |
| parent | f37af5560a9206a983ce8022a1bd617dd5f2e3ae (diff) | |
| download | linux-8061afaf1269a5988705fe8167a8c07d3b891028.tar.xz | |
PCI: shpchp: Enable bridge bus mastering if MSI is enabled
commit 48b79a14505349a29b3e20f03619ada9b33c4b17 upstream.
An SHPC may generate MSIs to notify software about slot or controller
events (SHPC spec r1.0, sec 4.7). A PCI device can only generate an MSI if
it has bus mastering enabled.
Enable bus mastering if the bridge contains an SHPC that uses MSI for event
notifications.
Signed-off-by: Aleksandr Bezzubikov <zuban32s@gmail.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iio/industrialio-event.c')
0 files changed, 0 insertions, 0 deletions