[PATCH 3/3] leds: rgb: s2m: use multi-led node of mfd as source node

[Kaustabh Chakraborty]

With the provided compatible string, the driver is able to use the
respective node to initialize following the properties in said node.

However, the compatible node is removed from the devicetree schema.
Follow the same in the driver. The soruce node must be, as per schema, a
sub-node named "multi-led" in the parent MFD node. Initialize the LED
driver into the sub-system by fetching it from the parent node.

Signed-off-by: Kaustabh Chakraborty <kauschluss@xxxxxxxxxxx>
---
 drivers/leds/rgb/leds-s2m-rgb.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/leds/rgb/leds-s2m-rgb.c b/drivers/leds/rgb/leds-s2m-rgb.c
index d239f54eee901..aa7e739213568 100644
--- a/drivers/leds/rgb/leds-s2m-rgb.c
+++ b/drivers/leds/rgb/leds-s2m-rgb.c
@@ -366,6 +366,7 @@ static int s2m_rgb_probe(struct platform_device *pdev)
 	struct sec_pmic_dev *pmic_drvdata = dev_get_drvdata(dev->parent);
 	struct s2m_rgb *rgb;
 	struct led_init_data init_data = {};
+	struct device_node *multi_led_node __free(device_node) = NULL;
 	int ret;
 
 	rgb = devm_kzalloc(dev, sizeof(*rgb), GFP_KERNEL);
@@ -392,7 +393,11 @@ static int s2m_rgb_probe(struct platform_device *pdev)
 	if (ret)
 		return dev_err_probe(dev, ret, "failed to create mutex lock\n");
 
-	init_data.fwnode = of_fwnode_handle(dev->of_node);
+	multi_led_node = of_get_child_by_name(dev->parent->of_node, "multi-led");
+	if (!multi_led_node)
+		return dev_err_probe(dev, -ENODEV, "RGB LED node required but not found\n");
+
+	init_data.fwnode = of_fwnode_handle(multi_led_node);
 	ret = devm_led_classdev_multicolor_register_ext(dev, &rgb->mc, &init_data);
 	if (ret)
 		return dev_err_probe(dev, ret, "failed to create LED device\n");
@@ -406,12 +411,6 @@ static const struct platform_device_id s2m_rgb_id_table[] = {
 };
 MODULE_DEVICE_TABLE(platform, s2m_rgb_id_table);
 
-static const struct of_device_id s2m_rgb_of_match_table[] = {
-	{ .compatible = "samsung,s2mu005-rgb", .data = (void *)S2MU005 },
-	{ /* sentinel */ },
-};
-MODULE_DEVICE_TABLE(of, s2m_rgb_of_match_table);
-
 static struct platform_driver s2m_rgb_driver = {
 	.driver = {
 		.name = "s2m-rgb",

-- 
2.53.0