[PATCH 1/2] gpio: latch: use generic device properties

From: Bartosz Golaszewski
Date: Tue Feb 11 2025 - 07:09:01 EST


From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>

Replace calls to OF-specific interface with generic device property
getters. This is good practice and also drops implicit run-time
dependency on CONFIG_OF.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
---
drivers/gpio/gpio-latch.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-latch.c b/drivers/gpio/gpio-latch.c
index d7c3b20c8482..722eb5b045f5 100644
--- a/drivers/gpio/gpio-latch.c
+++ b/drivers/gpio/gpio-latch.c
@@ -44,6 +44,7 @@
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/delay.h>

#include "gpiolib.h"
@@ -138,9 +139,9 @@ static bool gpio_latch_can_sleep(struct gpio_latch_priv *priv, unsigned int n_la

static int gpio_latch_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct gpio_latch_priv *priv;
unsigned int n_latches;
- struct device_node *np = pdev->dev.of_node;

priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -172,14 +173,16 @@ static int gpio_latch_probe(struct platform_device *pdev)
spin_lock_init(&priv->spinlock);
}

- of_property_read_u32(np, "setup-duration-ns", &priv->setup_duration_ns);
+ device_property_read_u32(dev, "setup-duration-ns",
+ &priv->setup_duration_ns);
if (priv->setup_duration_ns > DURATION_NS_MAX) {
dev_warn(&pdev->dev, "setup-duration-ns too high, limit to %d\n",
DURATION_NS_MAX);
priv->setup_duration_ns = DURATION_NS_MAX;
}

- of_property_read_u32(np, "clock-duration-ns", &priv->clock_duration_ns);
+ device_property_read_u32(dev, "clock-duration-ns",
+ &priv->clock_duration_ns);
if (priv->clock_duration_ns > DURATION_NS_MAX) {
dev_warn(&pdev->dev, "clock-duration-ns too high, limit to %d\n",
DURATION_NS_MAX);
--
2.45.2