linux-kernel - [PATCH v1 1/5] w1: gpio: Make use of device properties

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Date: Thu,  7 Mar 2024 16:35:47 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/5] w1: gpio: Make use of device properties

Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/w1/masters/w1-gpio.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c
index 34128e6bbbfa..8ea53c757c99 100644
--- a/drivers/w1/masters/w1-gpio.c
+++ b/drivers/w1/masters/w1-gpio.c
@@ -6,13 +6,13 @@
  */
 
 #include <linux/init.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/slab.h>
 #include <linux/gpio/consumer.h>
-#include <linux/of_platform.h>
 #include <linux/err.h>
-#include <linux/of.h>
 #include <linux/delay.h>
 
 #include <linux/w1.h>
@@ -63,20 +63,11 @@ static u8 w1_gpio_read_bit(void *data)
 	return gpiod_get_value(ddata->gpiod) ? 1 : 0;
 }
 
-#if defined(CONFIG_OF)
-static const struct of_device_id w1_gpio_dt_ids[] = {
-	{ .compatible = "w1-gpio" },
-	{}
-};
-MODULE_DEVICE_TABLE(of, w1_gpio_dt_ids);
-#endif
-
 static int w1_gpio_probe(struct platform_device *pdev)
 {
 	struct w1_bus_master *master;
 	struct w1_gpio_ddata *ddata;
 	struct device *dev = &pdev->dev;
-	struct device_node *np = dev->of_node;
 	/* Enforce open drain mode by default */
 	enum gpiod_flags gflags = GPIOD_OUT_LOW_OPEN_DRAIN;
 	int err;
@@ -91,7 +82,7 @@ static int w1_gpio_probe(struct platform_device *pdev)
 	 * driver it high/low like we are in full control of the line and
 	 * open drain will happen transparently.
 	 */
-	if (of_property_present(np, "linux,open-drain"))
+	if (device_property_present(dev, "linux,open-drain"))
 		gflags = GPIOD_OUT_LOW;
 
 	master = devm_kzalloc(dev, sizeof(struct w1_bus_master),
@@ -152,10 +143,16 @@ static void w1_gpio_remove(struct platform_device *pdev)
 	w1_remove_master_device(master);
 }
 
+static const struct of_device_id w1_gpio_dt_ids[] = {
+	{ .compatible = "w1-gpio" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, w1_gpio_dt_ids);
+
 static struct platform_driver w1_gpio_driver = {
 	.driver = {
 		.name	= "w1-gpio",
-		.of_match_table = of_match_ptr(w1_gpio_dt_ids),
+		.of_match_table = w1_gpio_dt_ids,
 	},
 	.probe = w1_gpio_probe,
 	.remove_new = w1_gpio_remove,
-- 
2.43.0.rc1.1.gbec44491f096