diff options
Diffstat (limited to 'drivers/cpufreq/s3c24xx-cpufreq-debugfs.c')
| -rw-r--r-- | drivers/cpufreq/s3c24xx-cpufreq-debugfs.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c b/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c deleted file mode 100644 index 93971dfe7c75..000000000000 --- a/drivers/cpufreq/s3c24xx-cpufreq-debugfs.c +++ /dev/null @@ -1,163 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 2009 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks <ben@simtec.co.uk> - * - * S3C24XX CPU Frequency scaling - debugfs status support -*/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/init.h> -#include <linux/export.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/cpufreq.h> -#include <linux/debugfs.h> -#include <linux/seq_file.h> -#include <linux/err.h> - -#include <linux/soc/samsung/s3c-cpufreq-core.h> - -static struct dentry *dbgfs_root; -static struct dentry *dbgfs_file_io; -static struct dentry *dbgfs_file_info; -static struct dentry *dbgfs_file_board; - -#define print_ns(x) ((x) / 10), ((x) % 10) - -static void show_max(struct seq_file *seq, struct s3c_freq *f) -{ - seq_printf(seq, "MAX: F=%lu, H=%lu, P=%lu, A=%lu\n", - f->fclk, f->hclk, f->pclk, f->armclk); -} - -static int board_show(struct seq_file *seq, void *p) -{ - struct s3c_cpufreq_config *cfg; - struct s3c_cpufreq_board *brd; - - cfg = s3c_cpufreq_getconfig(); - if (!cfg) { - seq_printf(seq, "no configuration registered\n"); - return 0; - } - - brd = cfg->board; - if (!brd) { - seq_printf(seq, "no board definition set?\n"); - return 0; - } - - seq_printf(seq, "SDRAM refresh %u ns\n", brd->refresh); - seq_printf(seq, "auto_io=%u\n", brd->auto_io); - seq_printf(seq, "need_io=%u\n", brd->need_io); - - show_max(seq, &brd->max); - - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(board); - -static int info_show(struct seq_file *seq, void *p) -{ - struct s3c_cpufreq_config *cfg; - - cfg = s3c_cpufreq_getconfig(); - if (!cfg) { - seq_printf(seq, "no configuration registered\n"); - return 0; - } - - seq_printf(seq, " FCLK %ld Hz\n", cfg->freq.fclk); - seq_printf(seq, " HCLK %ld Hz (%lu.%lu ns)\n", - cfg->freq.hclk, print_ns(cfg->freq.hclk_tns)); - seq_printf(seq, " PCLK %ld Hz\n", cfg->freq.hclk); - seq_printf(seq, "ARMCLK %ld Hz\n", cfg->freq.armclk); - seq_printf(seq, "\n"); - - show_max(seq, &cfg->max); - - seq_printf(seq, "Divisors: P=%d, H=%d, A=%d, dvs=%s\n", - cfg->divs.h_divisor, cfg->divs.p_divisor, - cfg->divs.arm_divisor, cfg->divs.dvs ? "on" : "off"); - seq_printf(seq, "\n"); - - seq_printf(seq, "lock_pll=%u\n", cfg->lock_pll); - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(info); - -static int io_show(struct seq_file *seq, void *p) -{ - void (*show_bank)(struct seq_file *, struct s3c_cpufreq_config *, union s3c_iobank *); - struct s3c_cpufreq_config *cfg; - struct s3c_iotimings *iot; - union s3c_iobank *iob; - int bank; - - cfg = s3c_cpufreq_getconfig(); - if (!cfg) { - seq_printf(seq, "no configuration registered\n"); - return 0; - } - - show_bank = cfg->info->debug_io_show; - if (!show_bank) { - seq_printf(seq, "no code to show bank timing\n"); - return 0; - } - - iot = s3c_cpufreq_getiotimings(); - if (!iot) { - seq_printf(seq, "no io timings registered\n"); - return 0; - } - - seq_printf(seq, "hclk period is %lu.%lu ns\n", print_ns(cfg->freq.hclk_tns)); - - for (bank = 0; bank < MAX_BANKS; bank++) { - iob = &iot->bank[bank]; - - seq_printf(seq, "bank %d: ", bank); - - if (!iob->io_2410) { - seq_printf(seq, "nothing set\n"); - continue; - } - - show_bank(seq, cfg, iob); - } - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(io); - -static int __init s3c_freq_debugfs_init(void) -{ - dbgfs_root = debugfs_create_dir("s3c-cpufreq", NULL); - if (IS_ERR(dbgfs_root)) { - pr_err("%s: error creating debugfs root\n", __func__); - return PTR_ERR(dbgfs_root); - } - - dbgfs_file_io = debugfs_create_file("io-timing", S_IRUGO, dbgfs_root, - NULL, &io_fops); - - dbgfs_file_info = debugfs_create_file("info", S_IRUGO, dbgfs_root, - NULL, &info_fops); - - dbgfs_file_board = debugfs_create_file("board", S_IRUGO, dbgfs_root, - NULL, &board_fops); - - return 0; -} - -late_initcall(s3c_freq_debugfs_init); - |