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| author | Lukas Wunner <lukas@wunner.de> | 2017-12-26 17:07:34 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2017-12-26 21:55:25 +0100 |
| commit | 43fff768346810042836df325d736bd2c2a634a7 (patch) | |
| tree | 632d663c86a787101e0c1f7e5e489f0996eddce0 /drivers/bluetooth | |
| parent | 27378f4c1b92fe275236c69d2f7f2c27090e7b53 (diff) | |
| download | linux-43fff768346810042836df325d736bd2c2a634a7.tar.gz linux-43fff768346810042836df325d736bd2c2a634a7.tar.bz2 linux-43fff768346810042836df325d736bd2c2a634a7.zip | |
Bluetooth: hci_bcm: Streamline runtime PM code
This driver seeks to force the Bluetooth device on for the duration of
5 seconds when the Bluetooth device has woken the host and after a
complete packet has been received. It does that by calling:
pm_runtime_get();
pm_runtime_mark_last_busy();
pm_runtime_put_autosuspend();
The same can be achieved more succinctly with:
pm_request_resume();
That's because after runtime resuming the device, rpm_resume() invokes
pm_runtime_mark_last_busy() followed by rpm_idle(), which will cause
the device to be suspended after expiration of the autosuspend_delay.
No functional change intended.
Cc: Frédéric Danis <frederic.danis.oss@gmail.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/hci_bcm.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c index 47fc58c9eb49..1fc604a0d870 100644 --- a/drivers/bluetooth/hci_bcm.c +++ b/drivers/bluetooth/hci_bcm.c @@ -191,9 +191,7 @@ static irqreturn_t bcm_host_wake(int irq, void *data) bt_dev_dbg(bdev, "Host wake IRQ"); - pm_runtime_get(bdev->dev); - pm_runtime_mark_last_busy(bdev->dev); - pm_runtime_put_autosuspend(bdev->dev); + pm_request_resume(bdev->dev); return IRQ_HANDLED; } @@ -512,11 +510,8 @@ static int bcm_recv(struct hci_uart *hu, const void *data, int count) } else if (!bcm->rx_skb) { /* Delay auto-suspend when receiving completed packet */ mutex_lock(&bcm_device_lock); - if (bcm->dev && bcm_device_exists(bcm->dev)) { - pm_runtime_get(bcm->dev->dev); - pm_runtime_mark_last_busy(bcm->dev->dev); - pm_runtime_put_autosuspend(bcm->dev->dev); - } + if (bcm->dev && bcm_device_exists(bcm->dev)) + pm_request_resume(bcm->dev->dev); mutex_unlock(&bcm_device_lock); } |