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soc: imx: Use device-managed APIs for i.MX9

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Use device-managed APi to simplify code.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Peng Fan
2025-12-17 20:42:07 +08:00
committed by Shawn Guo
parent 80a4062e88
commit ab382a6ee2
1 changed files with 9 additions and 19 deletions
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28
drivers/soc/imx/soc-imx9.c
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@@ -18,6 +18,7 @@
static int imx9_soc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct soc_device_attribute *attr;
struct arm_smccc_res res;
struct soc_device *sdev;
@@ -25,17 +26,17 @@ static int imx9_soc_probe(struct platform_device *pdev)
u64 uid127_64, uid63_0;
int err;
attr = kzalloc(sizeof(*attr), GFP_KERNEL);
attr = devm_kzalloc(dev, sizeof(*attr), GFP_KERNEL);
if (!attr)
return -ENOMEM;
err = of_property_read_string(of_root, "model", &attr->machine);
if (err) {
pr_err("%s: missing model property: %d\n", __func__, err);
goto attr;
return err;
}
attr->family = kasprintf(GFP_KERNEL, "Freescale i.MX");
attr->family = devm_kasprintf(dev, GFP_KERNEL, "Freescale i.MX");
/*
* Retrieve the soc id, rev & uid info:
@@ -47,39 +48,28 @@ static int imx9_soc_probe(struct platform_device *pdev)
arm_smccc_smc(IMX_SIP_GET_SOC_INFO, 0, 0, 0, 0, 0, 0, 0, &res);
if (res.a0 != SMCCC_RET_SUCCESS) {
pr_err("%s: SMC failed: 0x%lx\n", __func__, res.a0);
err = -EINVAL;
goto family;
return -EINVAL;
}
soc_id = SOC_ID(res.a1);
rev_major = SOC_REV_MAJOR(res.a1);
rev_minor = SOC_REV_MINOR(res.a1);
attr->soc_id = kasprintf(GFP_KERNEL, "i.MX%2x", soc_id);
attr->revision = kasprintf(GFP_KERNEL, "%d.%d", rev_major, rev_minor);
attr->soc_id = devm_kasprintf(dev, GFP_KERNEL, "i.MX%2x", soc_id);
attr->revision = devm_kasprintf(dev, GFP_KERNEL, "%d.%d", rev_major, rev_minor);
uid127_64 = res.a2;
uid63_0 = res.a3;
attr->serial_number = kasprintf(GFP_KERNEL, "%016llx%016llx", uid127_64, uid63_0);
attr->serial_number = devm_kasprintf(dev, GFP_KERNEL, "%016llx%016llx", uid127_64, uid63_0);
sdev = soc_device_register(attr);
if (IS_ERR(sdev)) {
err = PTR_ERR(sdev);
pr_err("%s failed to register SoC as a device: %d\n", __func__, err);
goto serial_number;
return err;
}
return 0;
serial_number:
kfree(attr->serial_number);
kfree(attr->revision);
kfree(attr->soc_id);
family:
kfree(attr->family);
attr:
kfree(attr);
return err;
}
static __maybe_unused const struct of_device_id imx9_soc_match[] = {