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-rw-r--r--Documentation/driver-api/clk.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/driver-api/clk.rst b/Documentation/driver-api/clk.rst
index 3cad45d14187..93bab5336dfd 100644
--- a/Documentation/driver-api/clk.rst
+++ b/Documentation/driver-api/clk.rst
@@ -258,6 +258,11 @@ clocks properly but rely on them being on from the bootloader, bypassing
the disabling means that the driver will remain functional while the issues
are sorted out.
+You can see which clocks have been disabled by booting your kernel with these
+parameters::
+
+ tp_printk trace_event=clk:clk_disable
+
To bypass this disabling, include "clk_ignore_unused" in the bootargs to the
kernel.