linux-kernel - [PATCH] firmware: stratix10-svc: Add of_platform_default

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Message-ID: <20250326115446.36123-1-dinguyen@kernel.org>
Date: Wed, 26 Mar 2025 06:54:46 -0500
From: Dinh Nguyen <dinguyen@...nel.org>
To: gregkh@...uxfoundation.org
Cc: dinguyen@...nel.org,
	linux-kernel@...r.kernel.org,
	Mahesh Rao <mahesh.rao@...el.com>,
	stable@...r.kernel.org,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Xu Yilun <yilun.xu@...el.com>
Subject: [PATCH] firmware: stratix10-svc: Add of_platform_default_populate()

From: Mahesh Rao <mahesh.rao@...el.com>

Add of_platform_default_populate() to stratix10-svc
driver as the firmware/svc node was moved out of soc.
This fixes the failed probing of child drivers of
svc node.

Cc: stable@...r.kernel.org
Fixes: 23c3ebed382a ("arm64: dts: socfpga: agilex: move firmware out of soc node")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Xu Yilun <yilun.xu@...el.com>
Signed-off-by: Mahesh Rao <mahesh.rao@...el.com>
Signed-off-by: Dinh Nguyen <dinguyen@...nel.org>
---
 drivers/firmware/stratix10-svc.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c
index 3c52cb73237a..e3f990d888d7 100644
--- a/drivers/firmware/stratix10-svc.c
+++ b/drivers/firmware/stratix10-svc.c
@@ -1224,22 +1224,28 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev)
 	if (!svc->intel_svc_fcs) {
 		dev_err(dev, "failed to allocate %s device\n", INTEL_FCS);
 		ret = -ENOMEM;
-		goto err_unregister_dev;
+		goto err_unregister_rsu_dev;
 	}
 
 	ret = platform_device_add(svc->intel_svc_fcs);
 	if (ret) {
 		platform_device_put(svc->intel_svc_fcs);
-		goto err_unregister_dev;
+		goto err_unregister_rsu_dev;
 	}
 
+	ret = of_platform_default_populate(dev_of_node(dev), NULL, dev);
+	if (ret)
+		goto err_unregister_fcs_dev;
+
 	dev_set_drvdata(dev, svc);
 
 	pr_info("Intel Service Layer Driver Initialized\n");
 
 	return 0;
 
-err_unregister_dev:
+err_unregister_fcs_dev:
+	platform_device_unregister(svc->intel_svc_fcs);
+err_unregister_rsu_dev:
 	platform_device_unregister(svc->stratix10_svc_rsu);
 err_free_kfifo:
 	kfifo_free(&controller->svc_fifo);
@@ -1253,6 +1259,8 @@ static void stratix10_svc_drv_remove(struct platform_device *pdev)
 	struct stratix10_svc *svc = dev_get_drvdata(&pdev->dev);
 	struct stratix10_svc_controller *ctrl = platform_get_drvdata(pdev);
 
+	of_platform_depopulate(ctrl->dev);
+
 	platform_device_unregister(svc->intel_svc_fcs);
 	platform_device_unregister(svc->stratix10_svc_rsu);
 
-- 
2.42.0.411.g813d9a9188