From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
Audio Graph Card2 settings is a little bit difficult for beginner,
and Customizing it also difficult/confusable too.
So, this patch adds sample for it.
You can easily use it by adding below line on your DT file,
and select CONFIGs to your .config.
#include "../../../../../sound/soc/generic/audio-graph-card2-sample.dtsi"
CONFIG_SND_AUDIO_GRAPH_CARD2
CONFIG_SND_SAMPLE_CUSTOM_CARD
CONFIG_SND_TEST_COMPONENT
This patch uses audio-graph-card2 base sample custom driver.
You can directly use audio-graph-card2 instead of custom driver
by modifing compatible.
- compatible = "sample-custom-card";
+ compatible = "audio-graph-card2";
Sample custom driver will indicate customized print.
Previous "audio-graph-card" and new "audio-graph-card2" doesn't
have full compatibility.
The differenct from audio-graph-card are
- audio-graph-card2 uses "links" instead of "dais".
- audio-graph-card2 uses flags for bitclock/frame-master
instead of phandle.
- audio-graph-card2 uses .get_fmt instead of having "format"
It is using Test-Component driver for CPU/Codec.
It can indicate more detail print of each behavior if user want to.
In such case, you need to update compatible to "xxx-nv" or "xxx-vv".
- compatible = "test-cpu";
+ compatible = "test-cpu-nv";
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
.../soc/generic/audio-graph-card2-sample.dtsi | 68 +++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644 sound/soc/generic/audio-graph-card2-sample.dtsi
diff --git a/sound/soc/generic/audio-graph-card2-sample.dtsi b/sound/soc/generic/audio-graph-card2-sample.dtsi
new file mode 100644
index 000000000000..5e83bfed1781
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2-sample.dtsi
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * audio-graph-card2-sample dtsi
+ *
+ *
+ * This sample indicates how to use audio-graph-card2 and its
+ * custom driver. "sample-custom-card" is the custome driver
+ * which is using audio-graph-card2.
+ *
+ * You can easily use this sample by adding below line on your DT file,
+ * and add new CONFIG to your .config.
+ *
+ * #include "../../../../../sound/soc/generic/audio-graph-card2-sample.dtsi"
+ *
+ * CONFIG_SND_AUDIO_GRAPH_CARD2
+ * CONFIG_SND_SAMPLE_CUSTOM_CARD
+ * CONFIG_SND_TEST_COMPONENT
+ */
+/ {
+ /*
+ * cpu0 <--> codec0 // Normal
+ * cpu1 <--> codec1 // Normal
+ */
+ card2 {
+ /*
+ * You can use audio-graph-card2 directly
+ * by using
+ *
+ * compatible = "audio-graph-card2";
+ */
+ compatible = "sample-custom-card";
+
+ links = <&cpu0 &cpu1 /* normal: cpu side only */
+ >;
+ };
+
+ test_cpu {
+ /*
+ * update compatible to indicate more detail behaviour
+ * if you want. see test-compatible for more detail.
+ *
+ * - compatible = "test-cpu";
+ * + compatible = "test-cpu-nv";
+ */
+ compatible = "test-cpu";
+ ports {
+ bitclock-master;
+ frame-master;
+ cpu0: port@0 { cpu0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; };
+ cpu1: port@1 { cpu1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+ };
+ };
+
+ test_codec {
+ /*
+ * update compatible to indicate more detail behaviour
+ * if you want. see test-compatible for more detail.
+ *
+ * - compatible = "test-codec";
+ * + compatible = "test-codec-nv";
+ */
+ compatible = "test-codec";
+ ports {
+ port@0 { codec0_ep: endpoint { remote-endpoint = <&cpu0_ep>; }; };
+ port@1 { codec1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; };
+ };
+ };
+};
--
2.25.1
