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>
diff --git a/arch/arm/plat-s3c24xx/s3c2412-iotiming.c b/arch/arm/plat-s3c24xx/s3c2412-iotiming.c
index a3648cb..fd45e47f 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 @@
}
/**
+ * 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.