diff options
| author | Archie Pusaka <apusaka@chromium.org> | 2021-07-23 19:31:56 +0800 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2021-07-23 14:10:23 +0200 |
| commit | 30f11dda2d25edcaae5ad34c4b953df4b2ba4faf (patch) | |
| tree | 03ded6a73be08d1b32c4a9c62e86cce7611c0545 /drivers/bluetooth/hci_h5.c | |
| parent | 66f077dde74943e9dd84a9205b4951b19556c9ea (diff) | |
Bluetooth: hci_h5: btrtl: Maintain flow control if wakeup is enabled
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>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth/hci_h5.c')
| -rw-r--r-- | drivers/bluetooth/hci_h5.c | 8 |
1 files changed, 8 insertions, 0 deletions
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; } |