// SPDX-License-Identifier: GPL-2.0

  #include <linux/cpufreq.h>

  #include <linux/fs.h>
  #include <linux/init.h>
  #include <linux/proc_fs.h>
  #include <linux/seq_file.h>

  __weak void arch_freq_prepare_all(void)
  {
  }

  extern const struct seq_operations cpuinfo_op;
  static int cpuinfo_open(struct inode *inode, struct file *file)
  {

  	arch_freq_prepare_all();

  	return seq_open(file, &cpuinfo_op);
  }

  static const struct proc_ops cpuinfo_proc_ops = {

  	.proc_flags	= PROC_ENTRY_PERMANENT,

  	.proc_open	= cpuinfo_open,

  	.proc_read_iter	= seq_read_iter,

  	.proc_lseek	= seq_lseek,
  	.proc_release	= seq_release,

  };
  
  static int __init proc_cpuinfo_init(void)
  {

  	proc_create("cpuinfo", 0, NULL, &cpuinfo_proc_ops);

  	return 0;
  }

  fs_initcall(proc_cpuinfo_init);