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: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index d8c36c1..6b866fc 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -140,7 +140,7 @@
.flags = &xlate_flags,
};
u32 tmp;
- int i, ret;
+ int ret;
chip_np = np->parent;
if (!chip_np)
@@ -159,12 +159,10 @@
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]);
- if (ret)
- return ERR_PTR(ret);
- }
+ 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) {