* Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> [181211 03:31]:
>
> Hi Tony
>
> > Here are two fixes that allow me to have multiple endpoints defined in
> > the dts file for audio-graph-card. To do that, we need to fix up few
> > issues as the graph binding Documentation/devicetree/bindings/graph.txt
> > allows multiple endpoints per port. This allows configuring TDM codecs
> > for I2S for example.
> >
> > Kuninori-san, can you please check if this makes sense to you and
> > compare against the graph binding?
>
> This looks a little bit strange for me.
> Can you show me your DT for it ?
Sure, adding also Sebastian to Cc. Here's what I currently have for droid 4
dts with two codecs on I2S. Please just ignore the GNSS parts there..
The TDM configuration is all done in the cpcap_audio_codec via set_tdm_slot().
The modem voice call codec is a serdev driver :) I'll need some more time to
be able to post patches but it's basically working for voice calls.
Regards,
Tony
8< ---------
diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
--- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
+++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
@@ -653,6 +653,28 @@
pinctrl-0 = <&uart1_pins>;
interrupts-extended = <&wakeupgen GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH
&omap4_pmx_core 0xfc>;
+
+ modem {
+ compatible = "motorola,mapphone-mdm6600-serdev";
+ phys = <&fsusb1_phy>;
+ phy-names = "usb";
+
+ mot_mdm6600_audio: audio-codec {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #sound-dai-cells = <1>;
+
+ port@0 {
+ mot_mdm6600_audio_codec0: endpoint {
+ remote-endpoint = <&cpu_dai_mdm>;
+ };
+ };
+ };
+
+ gnss {
+ compatible = "motorola,mapphone-mdm6600-gnss";
+ };
+ };
};
&uart3 {
@@ -746,12 +768,18 @@
status = "okay";
mcbsp3_port: port {
- cpu_dai3: endpoint {
+ cpu_dai3: endpoint@0 {
dai-format = "dsp_a";
frame-master = <&cpcap_audio_codec1>;
bitclock-master = <&cpcap_audio_codec1>;
remote-endpoint = <&cpcap_audio_codec1>;
};
+ cpu_dai_mdm: endpoint@1 {
+ dai-format = "dsp_a";
+ frame-master = <&cpcap_audio_codec1>;
+ bitclock-master = <&cpcap_audio_codec1>;
+ remote-endpoint = <&mot_mdm6600_audio_codec0>;
+ };
};
};
