From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 9a9023f314873241a43b5a2b96e9c0caaa958433 ]
The recently added H5_WAKEUP_DISABLE h5->flags flag gets checked in h5_btrtl_open(), but it gets set in h5_serdev_probe() *after* calling hci_uart_register_device() and thus after h5_btrtl_open() is called, set this flag earlier.
Also on devices where suspend/resume involves fully re-probing the HCI, runtime-pm suspend should not be used, make the runtime-pm setup conditional on the H5_WAKEUP_DISABLE flag too.
This fixes the HCI being removed and then re-added every 10 seconds because it was being reprobed as soon as it was runtime-suspended.
Fixes: 66f077dde749 ("Bluetooth: hci_h5: add WAKEUP_DISABLE flag") Fixes: d9dd833cf6d2 ("Bluetooth: hci_h5: Add runtime suspend") Signed-off-by: Hans de Goede hdegoede@redhat.com Reviewed-by: Archie Pusaka apusaka@chromium.org Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bluetooth/hci_h5.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c index eb0099a212888..d49a39d17d7dc 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -848,6 +848,8 @@ static int h5_serdev_probe(struct serdev_device *serdev) h5->vnd = data->vnd; }
+ if (data->driver_info & H5_INFO_WAKEUP_DISABLE) + set_bit(H5_WAKEUP_DISABLE, &h5->flags);
h5->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); if (IS_ERR(h5->enable_gpio)) @@ -862,9 +864,6 @@ static int h5_serdev_probe(struct serdev_device *serdev) if (err) return err;
- if (data->driver_info & H5_INFO_WAKEUP_DISABLE) - set_bit(H5_WAKEUP_DISABLE, &h5->flags); - return 0; }
@@ -964,11 +963,13 @@ static void h5_btrtl_open(struct h5 *h5) serdev_device_set_parity(h5->hu->serdev, SERDEV_PARITY_EVEN); serdev_device_set_baudrate(h5->hu->serdev, 115200);
- pm_runtime_set_active(&h5->hu->serdev->dev); - pm_runtime_use_autosuspend(&h5->hu->serdev->dev); - pm_runtime_set_autosuspend_delay(&h5->hu->serdev->dev, - SUSPEND_TIMEOUT_MS); - pm_runtime_enable(&h5->hu->serdev->dev); + if (!test_bit(H5_WAKEUP_DISABLE, &h5->flags)) { + pm_runtime_set_active(&h5->hu->serdev->dev); + pm_runtime_use_autosuspend(&h5->hu->serdev->dev); + pm_runtime_set_autosuspend_delay(&h5->hu->serdev->dev, + SUSPEND_TIMEOUT_MS); + pm_runtime_enable(&h5->hu->serdev->dev); + }
/* The controller needs up to 500ms to wakeup */ gpiod_set_value_cansleep(h5->enable_gpio, 1); @@ -978,7 +979,8 @@ static void h5_btrtl_open(struct h5 *h5)
static void h5_btrtl_close(struct h5 *h5) { - pm_runtime_disable(&h5->hu->serdev->dev); + if (!test_bit(H5_WAKEUP_DISABLE, &h5->flags)) + pm_runtime_disable(&h5->hu->serdev->dev);
gpiod_set_value_cansleep(h5->device_wake_gpio, 0); gpiod_set_value_cansleep(h5->enable_gpio, 0);