[PATCH 13/15] hwmon, fam15h_power: add documentation for previous TDP reporting

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This patch adds description to explain the TDP reporting mechanism of
fam15h_power driver.

Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
 Documentation/hwmon/fam15h_power | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Documentation/hwmon/fam15h_power b/Documentation/hwmon/fam15h_power
index e2b1b69..42bf04e 100644
--- a/Documentation/hwmon/fam15h_power
+++ b/Documentation/hwmon/fam15h_power
@@ -10,14 +10,22 @@ Supported chips:
   BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors
   BIOS and Kernel Developer's Guide (BKDG) For AMD Family 16h Processors
+  AMD64 Architecture Programmer's Manual Volume 2: System Programming
 Author: Andreas Herrmann <herrmann.der.user@xxxxxxxxxxxxxx>
+1) Processor TDP (Thermal design power)
+Given a fixed frequency and voltage, the power consumption of a
+processor varies based on the workload being executed. Derated power
+is the power consumed when running a specific application. Thermal
+design power (TDP) is an example of derated power.
 This driver permits reading of registers providing power information
-of AMD Family 15h and 16h processors.
+of AMD Family 15h and 16h processors via TDP algorithm.
 For AMD Family 15h and 16h processors the following power values can
 be calculated using different processor northbridge function

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