[PATCH 4/4] soc: imx: imx8m-blk-ctrl: Scan subnodes and bind drivers to them

[Marek Vasut <marex@denx.de>]

This particular block can have DT subnodes describing the LVDS LDB
bridge. Instead of misusing simple-bus to scan for those nodes, do
the scan within the driver.

Fixes: 94e6197dadc9 ("arm64: dts: imx8mp: Add LCDIF2 & LDB nodes")
Signed-off-by: Marek Vasut <marex@denx.de>
---
Cc: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Paul Elder <paul.elder@ideasonboard.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
---
 drivers/soc/imx/imx8m-blk-ctrl.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c b/drivers/soc/imx/imx8m-blk-ctrl.c
index 399cb85105a18..ab48f9dff4be5 100644
--- a/drivers/soc/imx/imx8m-blk-ctrl.c
+++ b/drivers/soc/imx/imx8m-blk-ctrl.c
@@ -169,7 +169,9 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev)
 {
 	const struct imx8m_blk_ctrl_data *bc_data;
 	struct device *dev = &pdev->dev;
+	struct platform_device *child;
 	struct imx8m_blk_ctrl *bc;
+	struct device_node *np;
 	void __iomem *base;
 	int i, ret;
 
@@ -310,6 +312,15 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(dev, bc);
 
+	for_each_child_of_node(dev->of_node, np) {
+		child = of_platform_device_create(np, NULL, dev);
+		if (!child)
+			ret = -ENOMEM;
+		of_node_put(np);
+		if (ret)
+			goto cleanup_provider;
+	}
+
 	return 0;
 
 cleanup_provider:
-- 
2.39.1