linux-kernel - [PATCH v2 2/2] memory: fsl_ifc: populate child devices without relying on simple-bus

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Date:   Thu, 14 Oct 2021 19:57:07 -0500
From:   Li Yang <leoyang.li@....com>
To:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Li Yang <leoyang.li@....com>
Subject: [PATCH v2 2/2] memory: fsl_ifc: populate child devices without relying on simple-bus

After we update the binding to not use simple-bus compatible for the
controller, we need the driver to populate the child devices explicitly.

Signed-off-by: Li Yang <leoyang.li@....com>
---
 drivers/memory/fsl_ifc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/memory/fsl_ifc.c b/drivers/memory/fsl_ifc.c
index d062c2f8250f..ef2092fa90d9 100644
--- a/drivers/memory/fsl_ifc.c
+++ b/drivers/memory/fsl_ifc.c
@@ -88,6 +88,7 @@ static int fsl_ifc_ctrl_remove(struct platform_device *dev)
 {
 	struct fsl_ifc_ctrl *ctrl = dev_get_drvdata(&dev->dev);
 
+	of_platform_depopulate(&dev->dev);
 	free_irq(ctrl->nand_irq, ctrl);
 	free_irq(ctrl->irq, ctrl);
 
@@ -285,6 +286,12 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)
 		}
 	}
 
+	/* legacy dts may still use "simple-bus" compatible */
+	ret = of_platform_populate(dev->dev.of_node, NULL, NULL,
+					&dev->dev);
+	if (ret)
+		goto err_nandirq;
+
 	return 0;
 
 err_nandirq:
-- 
2.25.1