Merge branches 'pm-qos' and 'pm-devfreq'

[karo-tx-linux.git] / Documentation / printk-formats.txt

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 5962949944fd7307530f26c54c65d783745a8a27..619cdffa5d44ada8e5085a9d77c871bac8fa4482 100644 (file)
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -275,6 +275,42 @@ struct va_format:
 
        Passed by reference.
 
+kobjects:
+       %pO
+
+       Base specifier for kobject based structs. Must be followed with
+       character for specific type of kobject as listed below:
+
+       Device tree nodes:
+
+       %pOF[fnpPcCF]
+
+       For printing device tree nodes. The optional arguments are:
+           f device node full_name
+           n device node name
+           p device node phandle
+           P device node path spec (name + @unit)
+           F device node flags
+           c major compatible string
+           C full compatible string
+       Without any arguments prints full_name (same as %pOFf)
+       The separator when using multiple arguments is ':'
+
+       Examples:
+
+       %pOF    /foo/bar@0                      - Node full name
+       %pOFf   /foo/bar@0                      - Same as above
+       %pOFfp  /foo/bar@0:10                   - Node full name + phandle
+       %pOFfcF /foo/bar@0:foo,device:--P-      - Node full name +
+                                                 major compatible string +
+                                                 node flags
+                                                       D - dynamic
+                                                       d - detached
+                                                       P - Populated
+                                                       B - Populated bus
+
+       Passed by reference.
+
 struct clk:
 
        %pC     pll1