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| author | Ben Dooks <ben@simtec.co.uk> | 2009-07-31 00:23:42 +0200 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2009-07-31 00:22:56 +0200 |
| commit | e6d197a6954c8a9ff85727c31ca61fc1da78628a (patch) | |
| tree | 4f83b37f17499111ae9381746b3427996eb75007 /arch/arm/plat-s3c24xx/s3c2412-iotiming.c | |
| parent | ARM: S3C: CPUFREQ: Add documentation for system (diff) | |
| download | linux-e6d197a6954c8a9ff85727c31ca61fc1da78628a.tar.xz linux-e6d197a6954c8a9ff85727c31ca61fc1da78628a.zip | |
ARM: S3C: CPUFREQ: Add debugfs support for cpufreq
Add debugfs support for the cpufreq driver to allow
information about the system state to be exported to
the user.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s3c24xx/s3c2412-iotiming.c')
| -rw-r--r-- | arch/arm/plat-s3c24xx/s3c2412-iotiming.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/s3c2412-iotiming.c b/arch/arm/plat-s3c24xx/s3c2412-iotiming.c index a3648cba0eb9..fd45e47facbc 100644 --- a/arch/arm/plat-s3c24xx/s3c2412-iotiming.c +++ b/arch/arm/plat-s3c24xx/s3c2412-iotiming.c @@ -16,6 +16,7 @@ #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/cpufreq.h> +#include <linux/seq_file.h> #include <linux/sysdev.h> #include <linux/delay.h> #include <linux/clk.h> @@ -109,6 +110,29 @@ static int s3c2412_calc_bank(struct s3c_cpufreq_config *cfg, } /** + * s3c2412_iotiming_debugfs - debugfs show io bank timing information + * @seq: The seq_file to write output to using seq_printf(). + * @cfg: The current configuration. + * @iob: The IO bank information to decode. +*/ +void s3c2412_iotiming_debugfs(struct seq_file *seq, + struct s3c_cpufreq_config *cfg, + union s3c_iobank *iob) +{ + struct s3c2412_iobank_timing *bt = iob->io_2412; + + seq_printf(seq, + "\tRead: idcy=%d.%d wstrd=%d.%d wstwr=%d,%d" + "wstoen=%d.%d wstwen=%d.%d wstbrd=%d.%d\n", + print_ns(bt->idcy), + print_ns(bt->wstrd), + print_ns(bt->wstwr), + print_ns(bt->wstoen), + print_ns(bt->wstwen), + print_ns(bt->wstbrd)); +} + +/** * s3c2412_iotiming_calc - calculate all the bank divisor settings. * @cfg: The current frequency configuration. * @iot: The bank timing information. |