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Commit 3f9547e1 authored by Masahiro Yamada's avatar Masahiro Yamada Committed by Linus Walleij
Browse files

gpio: of: optimize "gpios" property parsing of of_parse_own_gpio() 



Call of_property_read_u32_array() only once rather than iterating
of_property_read_u32_index().

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 7e7c059c

drivers/gpio/gpiolib-of.c

+5 −7
Original line number Diff line number Diff line
@@ -140,7 +140,7 @@ static struct gpio_desc *of_parse_own_gpio(struct device_node *np, 
		.flags = &xlate_flags,

	};

	u32 tmp;

	int i, ret;

	int ret;



	chip_np = np->parent;

	if (!chip_np)
@@ -159,12 +159,10 @@ static struct gpio_desc *of_parse_own_gpio(struct device_node *np, 


	gg_data.gpiospec.args_count = tmp;

	gg_data.gpiospec.np = chip_np;

	for (i = 0; i < tmp; i++) {

		ret = of_property_read_u32_index(np, "gpios", i,

					   &gg_data.gpiospec.args[i]);

	ret = of_property_read_u32_array(np, "gpios", gg_data.gpiospec.args,

					 tmp);

	if (ret)

		return ERR_PTR(ret);

	}



	gpiochip_find(&gg_data, of_gpiochip_find_and_xlate);

	if (!gg_data.out_gpio) {