diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2019-10-25 08:56:22 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2019-10-28 14:30:12 +0100 |
| commit | a0708f559e4fa2239b84e927e661d26e6864e185 (patch) | |
| tree | d174580f51e7ffddcda8e850301d5caa3ed97f80 /drivers/soc | |
| parent | firmware: imx: add missing include of <linux/firmware/imx/sci.h> (diff) | |
| download | linux-a0708f559e4fa2239b84e927e661d26e6864e185.tar.xz linux-a0708f559e4fa2239b84e927e661d26e6864e185.zip | |
soc: imx8: Using existing serial_number instead of UID
The soc_device_attribute structure already contains a serial_number
attribute to show SoC's unique ID, just use it to show SoC's unique
ID instead of creating a new file called soc_uid.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/imx/soc-imx8.c | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c index b9831576dd25..fcbf745a9971 100644 --- a/drivers/soc/imx/soc-imx8.c +++ b/drivers/soc/imx/soc-imx8.c @@ -29,14 +29,6 @@ struct imx8_soc_data { static u64 soc_uid; -static ssize_t soc_uid_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%016llX\n", soc_uid); -} - -static DEVICE_ATTR_RO(soc_uid); - static u32 __init imx8mq_soc_revision(void) { struct device_node *np; @@ -174,22 +166,25 @@ static int __init imx8_soc_init(void) goto free_soc; } + soc_dev_attr->serial_number = kasprintf(GFP_KERNEL, "%016llX", soc_uid); + if (!soc_dev_attr->serial_number) { + ret = -ENOMEM; + goto free_rev; + } + soc_dev = soc_device_register(soc_dev_attr); if (IS_ERR(soc_dev)) { ret = PTR_ERR(soc_dev); - goto free_rev; + goto free_serial_number; } - ret = device_create_file(soc_device_to_device(soc_dev), - &dev_attr_soc_uid); - if (ret) - goto free_rev; - if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT)) platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0); return 0; +free_serial_number: + kfree(soc_dev_attr->serial_number); free_rev: if (strcmp(soc_dev_attr->revision, "unknown")) kfree(soc_dev_attr->revision); |