From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
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@renesas.com --- .../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>; }; }; + }; + }; +};