diff options
| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2016-12-18 15:25:33 -0800 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2017-01-12 22:12:43 +0100 |
| commit | f301606934b240fb54d8edf3618a0483e36046fc (patch) | |
| tree | 309ef0ab5a735b9eb8ed6a66b3386b84e448298b /drivers/net/ieee802154/at86rf230.c | |
| parent | 5eb35a6ccea61648a55713c076ab65423eea1ac0 (diff) | |
| download | linux-f301606934b240fb54d8edf3618a0483e36046fc.tar.bz2 | |
at86rf230: Allow slow GPIO pins for "rstn"
Driver code never touches "rstn" signal in atomic context, so there's
no need to implicitly put such restriction on it by using gpio_set_value
to manipulate it. Replace gpio_set_value to gpio_set_value_cansleep to
fix that.
As a an example of where such restriction might be inconvenient,
consider a hardware design where "rstn" is connected to a pin of I2C/SPI
GPIO expander chip.
Cc: Chris Healy <cphealy@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/net/ieee802154/at86rf230.c')
| -rw-r--r-- | drivers/net/ieee802154/at86rf230.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index 46d53a6c8cf8..76ba7ecfe142 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -1715,9 +1715,9 @@ static int at86rf230_probe(struct spi_device *spi) /* Reset */ if (gpio_is_valid(rstn)) { udelay(1); - gpio_set_value(rstn, 0); + gpio_set_value_cansleep(rstn, 0); udelay(1); - gpio_set_value(rstn, 1); + gpio_set_value_cansleep(rstn, 1); usleep_range(120, 240); } |