Message ID | 20210723193137.v3.2.I404c6df9cdab270223c13e867396f440dd4b499d@changeid (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | [v3,1/3] Bluetooth: hci_h5: add WAKEUP_DISABLE flag | expand |
Hi Archie, > For chips that doesn't reset on suspend, we need to provide the correct > value of flow_control when it resumes. Therefore, store the flow > control value when reading from the config file to be reused upon > suspend. > > Signed-off-by: Archie Pusaka <apusaka@chromium.org> > Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org> > Reviewed-by: Hilda Wu <hildawu@realtek.com> > > --- > > (no changes since v1) > > drivers/bluetooth/hci_h5.c | 8 ++++++++ > 1 file changed, 8 insertions(+) patch has been applied to bluetooth-next tree. Regards Marcel
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c index fd672111a048..cbc63b057f33 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -54,6 +54,7 @@ enum { H5_RX_ESC, /* SLIP escape mode */ H5_TX_ACK_REQ, /* Pending ack to send */ H5_WAKEUP_DISABLE, /* Device cannot wake host */ + H5_HW_FLOW_CONTROL, /* Use HW flow control */ }; struct h5 { @@ -920,6 +921,9 @@ static int h5_btrtl_setup(struct h5 *h5) serdev_device_set_baudrate(h5->hu->serdev, controller_baudrate); serdev_device_set_flow_control(h5->hu->serdev, flow_control); + if (flow_control) + set_bit(H5_HW_FLOW_CONTROL, &h5->flags); + err = btrtl_download_firmware(h5->hu->hdev, btrtl_dev); /* Give the device some time before the hci-core sends it a reset */ usleep_range(10000, 20000); @@ -1012,7 +1016,11 @@ static int h5_btrtl_resume(struct h5 *h5) queue_work(system_long_wq, &reprobe->work); } else { gpiod_set_value_cansleep(h5->device_wake_gpio, 1); + + if (test_bit(H5_HW_FLOW_CONTROL, &h5->flags)) + serdev_device_set_flow_control(h5->hu->serdev, true); } + return 0; }