leds: sun50i-a100: Convert to be agnostic to property provider

Convert the driver to be agnostic to the property provider.
LEDS subsytem is not dependent on OF, so no need to make drivers
be a such.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20231214192131.1309912-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>

Author: andy-shev

drivers/leds/Kconfig

@@ -305,7 +305,7 @@ config LEDS_COBALT_RAQ
 
 config LEDS_SUN50I_A100
 	tristate "LED support for Allwinner A100 RGB LED controller"
-	depends on LEDS_CLASS_MULTICOLOR && OF
+	depends on LEDS_CLASS_MULTICOLOR
 	depends on ARCH_SUNXI || COMPILE_TEST
 	help
 	  This option enables support for the RGB LED controller found

drivers/leds/leds-sun50i-a100.c

@@ -15,10 +15,11 @@
 #include <linux/io.h>
 #include <linux/led-class-multicolor.h>
 #include <linux/leds.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
+#include <linux/property.h>
 #include <linux/reset.h>
 #include <linux/spinlock.h>
 
@@ -247,13 +248,13 @@ static const char *const sun50i_a100_ledc_formats[] = {
 	"rgb", "rbg", "grb", "gbr", "brg", "bgr",
 };
 
-static int sun50i_a100_ledc_parse_format(const struct device_node *np,
+static int sun50i_a100_ledc_parse_format(struct device *dev,
 					 struct sun50i_a100_ledc *priv)
 {
 	const char *format = "grb";
 	u32 i;
 
-	of_property_read_string(np, "allwinner,pixel-format", &format);
+	device_property_read_string(dev, "allwinner,pixel-format", &format);
 
 	for (i = 0; i < ARRAY_SIZE(sun50i_a100_ledc_formats); i++) {
 		if (!strcmp(format, sun50i_a100_ledc_formats[i])) {
@@ -262,7 +263,7 @@ static int sun50i_a100_ledc_parse_format(const struct device_node *np,
 		}
 	}
 
-	return dev_err_probe(priv->dev, -EINVAL, "Bad pixel format '%s'\n", format);
+	return dev_err_probe(dev, -EINVAL, "Bad pixel format '%s'\n", format);
 }
 
 static void sun50i_a100_ledc_set_format(struct sun50i_a100_ledc *priv)
@@ -283,18 +284,18 @@ static const struct sun50i_a100_ledc_timing sun50i_a100_ledc_default_timing = {
 	.treset_ns = 300000,
 };
 
-static int sun50i_a100_ledc_parse_timing(const struct device_node *np,
+static int sun50i_a100_ledc_parse_timing(struct device *dev,
 					 struct sun50i_a100_ledc *priv)
 {
 	struct sun50i_a100_ledc_timing *timing = &priv->timing;
 
 	*timing = sun50i_a100_ledc_default_timing;
 
-	of_property_read_u32(np, "allwinner,t0h-ns", &timing->t0h_ns);
-	of_property_read_u32(np, "allwinner,t0l-ns", &timing->t0l_ns);
-	of_property_read_u32(np, "allwinner,t1h-ns", &timing->t1h_ns);
-	of_property_read_u32(np, "allwinner,t1l-ns", &timing->t1l_ns);
-	of_property_read_u32(np, "allwinner,treset-ns", &timing->treset_ns);
+	device_property_read_u32(dev, "allwinner,t0h-ns", &timing->t0h_ns);
+	device_property_read_u32(dev, "allwinner,t0l-ns", &timing->t0l_ns);
+	device_property_read_u32(dev, "allwinner,t1h-ns", &timing->t1h_ns);
+	device_property_read_u32(dev, "allwinner,t1l-ns", &timing->t1l_ns);
+	device_property_read_u32(dev, "allwinner,treset-ns", &timing->treset_ns);
 
 	return 0;
 }
@@ -388,13 +389,12 @@ static void sun50i_a100_ledc_dma_cleanup(void *data)
 
 static int sun50i_a100_ledc_probe(struct platform_device *pdev)
 {
-	const struct device_node *np = pdev->dev.of_node;
 	struct dma_slave_config dma_cfg = {};
 	struct led_init_data init_data = {};
 	struct sun50i_a100_ledc_led *led;
 	struct device *dev = &pdev->dev;
 	struct sun50i_a100_ledc *priv;
-	struct device_node *child;
+	struct fwnode_handle *child;
 	struct resource *mem;
 	u32 max_addr = 0;
 	u32 num_leds = 0;
@@ -404,19 +404,19 @@ static int sun50i_a100_ledc_probe(struct platform_device *pdev)
 	 * The maximum LED address must be known in sun50i_a100_ledc_resume() before
 	 * class device registration, so parse and validate the subnodes up front.
 	 */
-	for_each_available_child_of_node(np, child) {
+	device_for_each_child_node(dev, child) {
 		u32 addr, color;
 
-		ret = of_property_read_u32(child, "reg", &addr);
+		ret = fwnode_property_read_u32(child, "reg", &addr);
 		if (ret || addr >= LEDC_MAX_LEDS) {
-			of_node_put(child);
+			fwnode_handle_put(child);
 			return dev_err_probe(dev, -EINVAL, "'reg' must be between 0 and %d\n",
 					     LEDC_MAX_LEDS - 1);
 		}
 
-		ret = of_property_read_u32(child, "color", &color);
+		ret = fwnode_property_read_u32(child, "color", &color);
 		if (ret || color != LED_COLOR_ID_RGB) {
-			of_node_put(child);
+			fwnode_handle_put(child);
 			return dev_err_probe(dev, -EINVAL, "'color' must be LED_COLOR_ID_RGB\n");
 		}
 
@@ -437,11 +437,11 @@ static int sun50i_a100_ledc_probe(struct platform_device *pdev)
 	spin_lock_init(&priv->lock);
 	dev_set_drvdata(dev, priv);
 
-	ret = sun50i_a100_ledc_parse_format(np, priv);
+	ret = sun50i_a100_ledc_parse_format(dev, priv);
 	if (ret)
 		return ret;
 
-	ret = sun50i_a100_ledc_parse_timing(np, priv);
+	ret = sun50i_a100_ledc_parse_timing(dev, priv);
 	if (ret)
 		return ret;
 
@@ -504,11 +504,11 @@ static int sun50i_a100_ledc_probe(struct platform_device *pdev)
 		return ret;
 
 	led = priv->leds;
-	for_each_available_child_of_node(np, child) {
+	device_for_each_child_node(dev, child) {
 		struct led_classdev *cdev;
 
 		/* The node was already validated above. */
-		of_property_read_u32(child, "reg", &led->addr);
+		fwnode_property_read_u32(child, "reg", &led->addr);
 
 		led->subled_info[0].color_index = LED_COLOR_ID_RED;
 		led->subled_info[0].channel = 0;
@@ -524,7 +524,7 @@ static int sun50i_a100_ledc_probe(struct platform_device *pdev)
 		cdev->max_brightness = U8_MAX;
 		cdev->brightness_set = sun50i_a100_ledc_brightness_set;
 
-		init_data.fwnode = of_fwnode_handle(child);
+		init_data.fwnode = child;
 
 		ret = led_classdev_multicolor_register_ext(dev, &led->mc_cdev, &init_data);
 		if (ret) {
@@ -540,7 +540,7 @@ static int sun50i_a100_ledc_probe(struct platform_device *pdev)
 	return 0;
 
 err_put_child:
-	of_node_put(child);
+	fwnode_handle_put(child);
 	while (led-- > priv->leds)
 		led_classdev_multicolor_unregister(&led->mc_cdev);
 	sun50i_a100_ledc_suspend(&pdev->dev);