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Bluetooth: hci_bcm: Fix clock (un)prepare 

The hci_bcm driver currently does not prepare/unprepare the clock and
goes directly to enable, but as the documentation for clk_enable says,
clk_prepare must be called before clk_enable.

Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
John Keeping 2017-03-15 12:20:05 +00:00 committed by Marcel Holtmann
parent dab6b5daee
commit 730ce397cd
1 changed files with 2 additions and 2 deletions
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4
drivers/bluetooth/hci_bcm.c
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@ -146,13 +146,13 @@ static bool bcm_device_exists(struct bcm_device *device)
static int bcm_gpio_set_power(struct bcm_device *dev, bool powered)
{
if (powered && !IS_ERR(dev->clk) && !dev->clk_enabled)
clk_enable(dev->clk);
clk_prepare_enable(dev->clk);
gpiod_set_value(dev->shutdown, powered);
gpiod_set_value(dev->device_wakeup, powered);
if (!powered && !IS_ERR(dev->clk) && dev->clk_enabled)
clk_disable(dev->clk);
clk_disable_unprepare(dev->clk);
dev->clk_enabled = powered;