diff mbox

[v2,4/8] gpio-mm-lantiq: Use of_property_read_u32

Message ID 1421666844-14599-1-git-send-email-ricardo.ribalda@gmail.com
State New, archived
Headers show

Commit Message

Ricardo Ribalda Delgado Jan. 19, 2015, 11:27 a.m. UTC
Instead of parsing manually the shadow content, use the much simpler
helper of_property_read_u32.

Cc: Linus Walleij <linus.walleij@linaro.org>
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>
---

v2: Reported by Mark Rutland <mark.rutland@arm.com>
 -use of_property_read_u32 instead of u16

 drivers/gpio/gpio-mm-lantiq.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

Comments

Linus Walleij Jan. 20, 2015, 10:10 a.m. UTC | #1
On Mon, Jan 19, 2015 at 12:27 PM, Ricardo Ribalda Delgado
<ricardo.ribalda@gmail.com> wrote:

> Instead of parsing manually the shadow content, use the much simpler
> helper of_property_read_u32.
>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> 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>
> ---
>
> v2: Reported by Mark Rutland <mark.rutland@arm.com>
>  -use of_property_read_u32 instead of u16

This v2 version applied.

Yours,
Linus Walleij
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diff mbox

Patch

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 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);
 }