Add print_freq() to display frequencies nicely

Add a function similar to print_size() that works for frequencies. It can
handle from Hz to GHz.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/display_options.h b/include/display_options.h
index 54bd41d10d..ac44c459b3 100644
--- a/include/display_options.h
+++ b/include/display_options.h
@@ -23,6 +23,17 @@
 void print_size(uint64_t size, const char *suffix);
 
 /**
+ * print_freq() - Print a frequency with a suffix
+ *
+ * Print frequencies as "x.xx GHz", "xxx KHz", etc as needed; allow for
+ * optional trailing string (like "\n")
+ *
+ * @freq:	Frequency to print in Hz
+ * @suffix	String to print after the frequency
+ */
+void print_freq(uint64_t freq, const char *suffix);
+
+/**
  * print_buffer() - Print data buffer in hex and ascii form
  *
  * Data reads are buffered so that each memory address is only read once.