gpio: gpio-mm-lantiq: Use of_property_read_u32
Instead of parsing manually the shadow content, use the much simpler
helper of_property_read_u32.
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: John Crispin <blogic@openwrt.org>
Cc: devicetree@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-mm-lantiq.c b/drivers/gpio/gpio-mm-lantiq.c
index 7d55161..95ff180 100644
--- a/drivers/gpio/gpio-mm-lantiq.c
+++ b/drivers/gpio/gpio-mm-lantiq.c
@@ -105,7 +105,7 @@
static int ltq_mm_probe(struct platform_device *pdev)
{
struct ltq_mm *chip;
- const __be32 *shadow;
+ u32 shadow;
chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
@@ -117,9 +117,8 @@
chip->mmchip.save_regs = ltq_mm_save_regs;
/* store the shadow value if one was passed by the devicetree */
- shadow = of_get_property(pdev->dev.of_node, "lantiq,shadow", NULL);
- if (shadow)
- chip->shadow = be32_to_cpu(*shadow);
+ if (!of_property_read_u32(pdev->dev.of_node, "lantiq,shadow", &shadow))
+ chip->shadow = shadow;
return of_mm_gpiochip_add(pdev->dev.of_node, &chip->mmchip);
}
