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 <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: John Crispin <[email protected]>
Cc: [email protected]
Cc: Mark Rutland <[email protected]>
Signed-off-by: Ricardo Ribalda Delgado <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Ricardo Ribalda Delgado 2015-01-19 12:27:24 +01:00 • committed by Linus Walleij
commit 68a99b187d

View file

@ -105,7 +105,7 @@ static void ltq_mm_save_regs(struct of_mm_gpio_chip *mm_gc)
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 @@ static int ltq_mm_probe(struct platform_device *pdev)
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);
}