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| author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2020-02-11 11:35:04 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-11 11:15:29 -0800 |
| commit | d2bdc492916046da4abe07ec2373bd962f2224e9 (patch) | |
| tree | da3e777822d9e4e98fe48d3e2210bf41c13483ea /drivers/staging/wfx/bus_spi.c | |
| parent | 40a97d55a6b7f52df0a4ff59b860a4d4c2a0283a (diff) | |
| download | linux-stable-d2bdc492916046da4abe07ec2373bd962f2224e9.tar.gz linux-stable-d2bdc492916046da4abe07ec2373bd962f2224e9.tar.bz2 linux-stable-d2bdc492916046da4abe07ec2373bd962f2224e9.zip | |
staging: wfx: use more power-efficient sleep for reset
Replace udelay() with usleep_range() as all uses are in a sleepable context.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/59e1e4e5bd80c1879ef36eaa59916e47005dbb04.1581416843.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/wfx/bus_spi.c')
| -rw-r--r-- | drivers/staging/wfx/bus_spi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/wfx/bus_spi.c b/drivers/staging/wfx/bus_spi.c index e3cd12592662..61e99b09decb 100644 --- a/drivers/staging/wfx/bus_spi.c +++ b/drivers/staging/wfx/bus_spi.c @@ -211,9 +211,9 @@ static int wfx_spi_probe(struct spi_device *func) if (spi_get_device_id(func)->driver_data & WFX_RESET_INVERTED) gpiod_toggle_active_low(bus->gpio_reset); gpiod_set_value_cansleep(bus->gpio_reset, 1); - udelay(100); + usleep_range(100, 150); gpiod_set_value_cansleep(bus->gpio_reset, 0); - udelay(2000); + usleep_range(2000, 2500); } INIT_WORK(&bus->request_rx, wfx_spi_request_rx); |