diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-03-30 22:33:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-02 17:28:53 +0300 |
| commit | 5c777233c90f80a75cbd79c1b2fd713453dd02ff (patch) | |
| tree | 70ac830c76d3af672c87ed3380091c295a2b9299 /drivers/mux/gpio.c | |
| parent | 5a1bea2a2572ce5eb4bdcf432a6929681ee381f2 (diff) | |
| download | linux-5c777233c90f80a75cbd79c1b2fd713453dd02ff.tar.xz | |
mux: gpio: Use bitmap API instead of direct assignment
Assigning bitmaps like it's done in the driver might be error prone.
Fix this by using bitmap API.
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210330193325.68362-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mux/gpio.c')
| -rw-r--r-- | drivers/mux/gpio.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mux/gpio.c b/drivers/mux/gpio.c index 02c1f2c014e8..d1b4aa923657 100644 --- a/drivers/mux/gpio.c +++ b/drivers/mux/gpio.c @@ -7,6 +7,7 @@ * Author: Peter Rosin <peda@axentia.se> */ +#include <linux/bitmap.h> #include <linux/err.h> #include <linux/gpio/consumer.h> #include <linux/module.h> @@ -23,8 +24,9 @@ static int mux_gpio_set(struct mux_control *mux, int state) { struct mux_gpio *mux_gpio = mux_chip_priv(mux->chip); DECLARE_BITMAP(values, BITS_PER_TYPE(state)); + u32 value = state; - values[0] = state; + bitmap_from_arr32(values, &value, BITS_PER_TYPE(value)); gpiod_set_array_value_cansleep(mux_gpio->gpios->ndescs, mux_gpio->gpios->desc, @@ -71,7 +73,7 @@ static int mux_gpio_probe(struct platform_device *pdev) return ret; } WARN_ON(pins != mux_gpio->gpios->ndescs); - mux_chip->mux->states = 1 << pins; + mux_chip->mux->states = BIT(pins); ret = device_property_read_u32(dev, "idle-state", (u32 *)&idle_state); if (ret >= 0 && idle_state != MUX_IDLE_AS_IS) { |