diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2018-04-27 11:26:43 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-16 10:10:30 +0200 |
| commit | 4aa9ef8a29ad2f26ebff93ca9a410d59b243a63d (patch) | |
| tree | 4099721591034c4b054f562e77f42ef9b7d17345 /drivers/bluetooth | |
| parent | 4fcd0333b21e44e48c110a454b0baf696cbfc326 (diff) | |
Bluetooth: btusb: Only check needs_reset_resume DMI table for QCA rome chipsets
commit fc54910280eb38bde923cdf0898e74687d8e6989 upstream.
Jeremy Cline correctly points out in rhbz#1514836 that a device where the
QCA rome chipset needs the USB_QUIRK_RESET_RESUME quirk, may also ship
with a different wifi/bt chipset in some configurations.
If that is the case then we are needlessly penalizing those other chipsets
with a reset-resume quirk, typically causing 0.4W extra power use because
this disables runtime-pm.
This commit moves the DMI table check to a btusb_check_needs_reset_resume()
helper (so that we can easily also call it for other chipsets) and calls
this new helper only for QCA_ROME chipsets for now.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1514836
Cc: stable@vger.kernel.org
Cc: Jeremy Cline <jcline@redhat.com>
Suggested-by: Jeremy Cline <jcline@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btusb.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index d99d01b9234c..7fcc4d7f4909 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2902,6 +2902,12 @@ static int btusb_config_oob_wake(struct hci_dev *hdev) } #endif +static void btusb_check_needs_reset_resume(struct usb_interface *intf) +{ + if (dmi_check_system(btusb_needs_reset_resume_table)) + interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; +} + static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -3037,9 +3043,6 @@ static int btusb_probe(struct usb_interface *intf, hdev->send = btusb_send_frame; hdev->notify = btusb_notify; - if (dmi_check_system(btusb_needs_reset_resume_table)) - interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; - #ifdef CONFIG_PM err = btusb_config_oob_wake(hdev); if (err) @@ -3126,6 +3129,7 @@ static int btusb_probe(struct usb_interface *intf, if (id->driver_info & BTUSB_QCA_ROME) { data->setup_on_usb = btusb_setup_qca; hdev->set_bdaddr = btusb_set_bdaddr_ath3012; + btusb_check_needs_reset_resume(intf); } #ifdef CONFIG_BT_HCIBTUSB_RTL |