soc: imx8m: don't access of_root directly

Don't access of_root directly as it reduces the build test coverage for
this driver with COMPILE_TEST=y and OF=n. Use existing helper functions
to retrieve the relevant information.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260223-soc-of-root-v2-6-b45da45903c8@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/soc/imx/soc-imx8m.c b/drivers/soc/imx/soc-imx8m.c
index 8e2322999f0996d2723768469c6893b0ea22eb9d..77763a107edbd11302017e3f61ecb4369fda1ab0 100644 (file)
--- a/drivers/soc/imx/soc-imx8m.c
+++ b/drivers/soc/imx/soc-imx8m.c
@@ -226,7 +226,6 @@ static int imx8m_soc_probe(struct platform_device *pdev)
        const struct imx8_soc_data *data;
        struct imx8_soc_drvdata *drvdata;
        struct device *dev = &pdev->dev;
-       const struct of_device_id *id;
        struct soc_device *soc_dev;
        u32 soc_rev = 0;
        u64 soc_uid[2] = {0, 0};
@@ -244,15 +243,11 @@ static int imx8m_soc_probe(struct platform_device *pdev)
 
        soc_dev_attr->family = "Freescale i.MX";
 
-       ret = of_property_read_string(of_root, "model", &soc_dev_attr->machine);
+       ret = soc_attr_read_machine(soc_dev_attr);
        if (ret)
                return ret;
 
-       id = of_match_node(imx8_soc_match, of_root);
-       if (!id)
-               return -ENODEV;
-
-       data = id->data;
+       data = device_get_match_data(dev);
        if (data) {
                soc_dev_attr->soc_id = data->name;
                ret = imx8m_soc_prepare(pdev, data->ocotp_compatible);
@@ -326,7 +321,7 @@ static int __init imx8_soc_init(void)
        int ret;
 
        /* No match means this is non-i.MX8M hardware, do nothing. */
-       if (!of_match_node(imx8_soc_match, of_root))
+       if (!of_machine_device_match(imx8_soc_match))
                return 0;
 
        ret = platform_driver_register(&imx8m_soc_driver);