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soc: imx8m: Unregister cpufreq and soc dev in cleanup path

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Unregister the cpufreq device and soc device when resource unwinding,
otherwise there will be warning when do removing test:
sysfs: cannot create duplicate filename '/devices/platform/imx-cpufreq-dt'
CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.13.0-rc1-next-20241204
Hardware name: NXP i.MX8MPlus EVK board (DT)

Fixes: 9cc832d377 ("soc: imx8m: Probe the SoC driver as platform driver")
Cc: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Peng Fan 2025-02-14 16:47:51 +08:00 committed by Shawn Guo
parent 83964a2937
commit cf7139aac4
1 changed files with 24 additions and 2 deletions
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26
drivers/soc/imx/soc-imx8m.c
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@ -192,9 +192,20 @@ static __maybe_unused const struct of_device_id imx8_soc_match[] = {
devm_kasprintf((dev), GFP_KERNEL, "%d.%d", ((soc_rev) >> 4) & 0xf, (soc_rev) & 0xf) : \
"unknown"
static void imx8m_unregister_soc(void *data)
{
soc_device_unregister(data);
}
static void imx8m_unregister_cpufreq(void *data)
{
platform_device_unregister(data);
}
static int imx8m_soc_probe(struct platform_device *pdev)
{
struct soc_device_attribute *soc_dev_attr;
struct platform_device *cpufreq_dev;
const struct imx8_soc_data *data;
struct device *dev = &pdev->dev;
const struct of_device_id *id;
@ -239,11 +250,22 @@ static int imx8m_soc_probe(struct platform_device *pdev)
if (IS_ERR(soc_dev))
return PTR_ERR(soc_dev);
ret = devm_add_action(dev, imx8m_unregister_soc, soc_dev);
if (ret)
return ret;
pr_info("SoC: %s revision %s\n", soc_dev_attr->soc_id,
soc_dev_attr->revision);
if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT))
platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0);
if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT)) {
cpufreq_dev = platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0);
if (IS_ERR(cpufreq_dev))
return dev_err_probe(dev, PTR_ERR(cpufreq_dev),
"Failed to register imx-cpufreq-dev device\n");
ret = devm_add_action(dev, imx8m_unregister_cpufreq, cpufreq_dev);
if (ret)
return ret;
}
return 0;
}