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firmware: vpd: remove platform driver

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There is no reason why VPD should register platform device and driver,
given that we do not use their respective kobjects to attach attributes,
nor do we need suspend/resume hooks, or any other features of device
core.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Torokhov 2017-05-23 17:07:47 -07:00 committed by Greg Kroah-Hartman
parent dd246486f9
commit 7975bd4cca
1 changed files with 16 additions and 28 deletions
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44
drivers/firmware/google/vpd.c
View file

@ -22,8 +22,6 @@
#include <linux/kobject.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
@ -279,47 +277,37 @@ static int vpd_sections_init(phys_addr_t physaddr)
ret = vpd_section_init("rw", &rw_vpd,
physaddr + sizeof(struct vpd_cbmem) +
header.ro_size, header.rw_size);
if (ret)
if (ret) {
vpd_section_destroy(&ro_vpd);
return ret;
}
}
return 0;
}
static int vpd_probe(struct platform_device *pdev)
{
int ret;
struct lb_cbmem_ref entry;
ret = coreboot_table_find(CB_TAG_VPD, &entry, sizeof(entry));
if (ret)
return ret;
return vpd_sections_init(entry.cbmem_addr);
}
static struct platform_driver vpd_driver = {
.probe = vpd_probe,
.driver = {
.name = "vpd",
},
};
static int __init vpd_platform_init(void)
{
struct platform_device *pdev;
pdev = platform_device_register_simple("vpd", -1, NULL, 0);
if (IS_ERR(pdev))
return PTR_ERR(pdev);
struct lb_cbmem_ref entry;
int err;
vpd_kobj = kobject_create_and_add("vpd", firmware_kobj);
if (!vpd_kobj)
return -ENOMEM;
platform_driver_register(&vpd_driver);
err = coreboot_table_find(CB_TAG_VPD, &entry, sizeof(entry));
if (err)
goto err_kobject_put;
err = vpd_sections_init(entry.cbmem_addr);
if (err)
goto err_kobject_put;
return 0;
err_kobject_put:
kobject_put(vpd_kobj);
return err;
}
static void __exit vpd_platform_exit(void)