Commit 4fc5bfeb authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Linus Walleij
Browse files

gpiolib: Make use of assign_bit() API 



We have for some time the assign_bit() API to replace open coded

	if (foo)
		set_bit(n, bar);
	else
		clear_bit(n, bar);

Use this API in GPIO library code.

No functional change intended.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20191204194229.64251-2-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent c16485ad

drivers/gpio/gpiolib.c

+20 −39
Original line number Diff line number Diff line
@@ -224,15 +224,15 @@ int gpiod_get_direction(struct gpio_desc *desc) 
		return -ENOTSUPP;



	ret = chip->get_direction(chip, offset);

	if (ret > 0) {

		/* GPIOF_DIR_IN, or other positive */

	if (ret < 0)

		return ret;



	/* GPIOF_DIR_IN or other positive, otherwise GPIOF_DIR_OUT */

	if (ret > 0)

		ret = 1;

		clear_bit(FLAG_IS_OUT, &desc->flags);

	}

	if (ret == 0) {

		/* GPIOF_DIR_OUT */

		set_bit(FLAG_IS_OUT, &desc->flags);

	}



	assign_bit(FLAG_IS_OUT, &desc->flags, !ret);



	return ret;

}

EXPORT_SYMBOL_GPL(gpiod_get_direction);
@@ -484,15 +484,6 @@ static int linehandle_validate_flags(u32 flags) 
	return 0;

}



static void linehandle_configure_flag(unsigned long *flagsp,

				      u32 bit, bool active)

{

	if (active)

		set_bit(bit, flagsp);

	else

		clear_bit(bit, flagsp);

}



static long linehandle_set_config(struct linehandle_state *lh,

				  void __user *ip)

{
@@ -514,22 +505,22 @@ static long linehandle_set_config(struct linehandle_state *lh, 
		desc = lh->descs[i];

		flagsp = &desc->flags;



		linehandle_configure_flag(flagsp, FLAG_ACTIVE_LOW,

		assign_bit(FLAG_ACTIVE_LOW, flagsp,

			lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW);



		linehandle_configure_flag(flagsp, FLAG_OPEN_DRAIN,

		assign_bit(FLAG_OPEN_DRAIN, flagsp,

			lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN);



		linehandle_configure_flag(flagsp, FLAG_OPEN_SOURCE,

		assign_bit(FLAG_OPEN_SOURCE, flagsp,

			lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE);



		linehandle_configure_flag(flagsp, FLAG_PULL_UP,

		assign_bit(FLAG_PULL_UP, flagsp,

			lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP);



		linehandle_configure_flag(flagsp, FLAG_PULL_DOWN,

		assign_bit(FLAG_PULL_DOWN, flagsp,

			lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN);



		linehandle_configure_flag(flagsp, FLAG_BIAS_DISABLE,

		assign_bit(FLAG_BIAS_DISABLE, flagsp,

			lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE);



		/*
@@ -1516,15 +1507,11 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, 
		struct gpio_desc *desc = &gdev->descs[i];



		if (chip->get_direction && gpiochip_line_is_valid(chip, i)) {

			if (!chip->get_direction(chip, i))

				set_bit(FLAG_IS_OUT, &desc->flags);

			else

				clear_bit(FLAG_IS_OUT, &desc->flags);

			assign_bit(FLAG_IS_OUT,

				   &desc->flags, !chip->get_direction(chip, i));

		} else {

			if (!chip->direction_input)

				set_bit(FLAG_IS_OUT, &desc->flags);

			else

				clear_bit(FLAG_IS_OUT, &desc->flags);

			assign_bit(FLAG_IS_OUT,

				   &desc->flags, !chip->direction_input);

		}

	}
@@ -3326,10 +3313,7 @@ int gpiod_set_transitory(struct gpio_desc *desc, bool transitory) 
	 * Handle FLAG_TRANSITORY first, enabling queries to gpiolib for

	 * persistence state.

	 */

	if (transitory)

		set_bit(FLAG_TRANSITORY, &desc->flags);

	else

		clear_bit(FLAG_TRANSITORY, &desc->flags);

	assign_bit(FLAG_TRANSITORY, &desc->flags, transitory);



	/* If the driver supports it, set the persistence state now */

	chip = desc->gdev->chip;
@@ -3785,10 +3769,7 @@ int gpiod_set_array_value_complex(bool raw, bool can_sleep, 
				gpio_set_open_source_value_commit(desc, value);

			} else {

				__set_bit(hwgpio, mask);

				if (value)

					__set_bit(hwgpio, bits);

				else

					__clear_bit(hwgpio, bits);

				__assign_bit(hwgpio, bits, value);

				count++;

			}

			i++;

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