diff --git a/Documentation/sound/soc/dapm-graph.svg b/Documentation/sound/soc/dapm-graph.svg
new file mode 100644
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+++ b/Documentation/sound/soc/dapm-graph.svg
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+<g id="edge11" class="edge">
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+<!-- cs42l51.0&#45;004a_PGA&#45;ADC Mux Left&#45;&gt;cs42l51.0&#45;004a_Left PGA -->
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+<text text-anchor="middle" x="647" y="-393.8" font-family="sans-serif" font-size="14.00">[pga]</text>
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+<g id="edge19" class="edge">
+<title>cs42l51.0&#45;004a_PGA&#45;ADC Mux Right&#45;&gt;cs42l51.0&#45;004a_Right PGA</title>
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+<g id="edge5" class="edge">
+<title>cs42l51.0&#45;004a_Playback&#45;&gt;cs42l51.0&#45;004a_DAC Mux</title>
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+<polygon fill="black" stroke="black" points="658.5,-286.41 655,-276.41 651.5,-286.41 658.5,-286.41"/>
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+<!-- cs42l51.0&#45;004a_Right DAC&#45;&gt;cs42l51.0&#45;004a_HPR -->
+<g id="edge7" class="edge">
+<title>cs42l51.0&#45;004a_Right DAC&#45;&gt;cs42l51.0&#45;004a_HPR</title>
+<path fill="none" stroke="black" d="M608,-89.83C608,-82.13 608,-72.97 608,-64.42"/>
+<polygon fill="black" stroke="black" points="611.5,-64.41 608,-54.41 604.5,-64.41 611.5,-64.41"/>
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+<g id="edge17" class="edge">
+<title>cs42l51.0&#45;004a_Right PGA&#45;&gt;cs42l51.0&#45;004a_Right ADC</title>
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+<!-- hdmi&#45;audio&#45;codec.1.auto_TX -->
+<g id="node30" class="node">
+<title>hdmi&#45;audio&#45;codec.1.auto_TX</title>
+<polygon fill="#f2f2f2" stroke="#4d4d4d" points="281.5,-509 210.5,-509 210.5,-471 281.5,-471 281.5,-509"/>
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+</g>
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+<g id="edge22" class="edge">
+<title>hdmi&#45;audio&#45;codec.1.auto_I2S Playback&#45;&gt;hdmi&#45;audio&#45;codec.1.auto_TX</title>
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+<!-- hdmi&#45;audio&#45;codec.1.auto_RX -->
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+</g>
+<!-- hdmi&#45;audio&#45;codec.1.auto_RX&#45;&gt;hdmi&#45;audio&#45;codec.1.auto_Capture -->
+<g id="edge20" class="edge">
+<title>hdmi&#45;audio&#45;codec.1.auto_RX&#45;&gt;hdmi&#45;audio&#45;codec.1.auto_Capture</title>
+<path fill="none" stroke="black" d="M154.25,-544.83C154.36,-537.13 154.49,-527.97 154.61,-519.42"/>
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diff --git a/Documentation/sound/soc/dapm.rst b/Documentation/sound/soc/dapm.rst
index 11f7f2f685af..58ef880ac8b6 100644
--- a/Documentation/sound/soc/dapm.rst
+++ b/Documentation/sound/soc/dapm.rst
@@ -17,9 +17,27 @@ recompiling are required for user space applications to use it. DAPM makes
 power switching decisions based upon any audio stream (capture/playback)
 activity and audio mixer settings within the device.
 
-DAPM spans the whole machine. It covers power control within the entire
-audio subsystem, this includes internal codec power blocks and machine
-level power systems.
+DAPM is based on two basic elements, called widgets and routes:
+
+ * a **widget** is every part of the audio hardware that can be enabled by
+   software when in use and disabled to save power when not in use
+ * a **route** is an interconnection between widgets that exists when sound
+   can flow from one widget to the other
+
+All DAPM power switching decisions are made automatically by consulting an
+audio routing graph. This graph is specific to each sound card and spans
+the whole sound card, so some DAPM routes connect two widgets belonging to
+different components (e.g. the LINE OUT pin of a CODEC and the input pin of
+an amplifier).
+
+The graph for the STM32MP1-DK1 sound card is shown in picture:
+
+.. kernel-figure:: dapm-graph.svg
+    :alt:   Example DAPM graph
+    :align: center
+
+DAPM power domains
+==================
 
 There are 4 power domains within DAPM:
 
@@ -48,12 +66,6 @@ Stream domain
       Enabled and disabled when stream playback/capture is started and
       stopped respectively. e.g. aplay, arecord.
 
-All DAPM power switching decisions are made automatically by consulting an audio
-routing graph of the whole machine. This graph is specific to each machine and
-consists of the interconnections between every audio component (including
-internal codec components). All audio components that affect power are called
-widgets hereafter.
-
 
 DAPM Widgets
 ============
