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-rw-r--r--Documentation/printk-formats.txt12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 56804e40cb18..cb6a596072bb 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -261,6 +261,18 @@ struct va_format:
Passed by reference.
+struct clk:
+
+ %pC pll1
+ %pCn pll1
+ %pCr 1560000000
+
+ For printing struct clk structures. '%pC' and '%pCn' print the name
+ (Common Clock Framework) or address (legacy clock framework) of the
+ structure; '%pCr' prints the current clock rate.
+
+ Passed by reference.
+
Thank you for your cooperation and attention.