On some systems that actually have the bluetooth controller wired up with an extra clock signal, it's possible the bluetooth controller probes before the clock provider. clk_get would return a defer probe error, which was not handled by this driver.
Handle this properly, so that these systems can work reliably. Signed-off-by: Chen-Yu Tsai <[email protected]> --- drivers/bluetooth/hci_bcm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c index ddbd8c6a0ceb..0a20ad48b511 100644 --- a/drivers/bluetooth/hci_bcm.c +++ b/drivers/bluetooth/hci_bcm.c @@ -907,6 +907,10 @@ static int bcm_get_resources(struct bcm_device *dev) dev->clk = devm_clk_get(dev->dev, NULL); + /* Handle deferred probing */ + if (IS_ERR(dev->clk) && PTR_ERR(dev->clk) == -EPROBE_DEFER) + return PTR_ERR(dev->clk); + dev->device_wakeup = devm_gpiod_get_optional(dev->dev, "device-wakeup", GPIOD_OUT_LOW); if (IS_ERR(dev->device_wakeup)) -- 2.19.1 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
