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feat(morello): add support for I2S audio

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Add support for Morello I2S audio subsystem. This includes adding the
audio formatter and I2S transmitter nodes and gluing them together with
the hdmi codec using a simple sound card machine node.

Change-Id: I3de4b06ef965c8e0555d074118b944fe6b4b78bb
Signed-off-by: Anurag Koul <anurag.koul@arm.com>
Signed-off-by: Faiz Abbas <faiz.abbas@arm.com>
This commit is contained in:
Faiz Abbas 2022-02-10 17:01:39 +00:00
parent 43a6544f01
commit 6bcbe43790
2 changed files with 57 additions and 2 deletions
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50
fdts/morello-soc.dts
View file

@ -194,10 +194,12 @@
interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>; interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&dpu_aclk>; clocks = <&dpu_aclk>;
hdmi-transmitter@70 { hdmi_tx: hdmi-transmitter@70 {
compatible = "nxp,tda998x"; compatible = "nxp,tda998x";
reg = <0x70>; reg = <0x70>;
video-ports = <0x234501>; video-ports = <0x234501>;
#sound-dai-cells = <0>;
audio-ports = <2 0x03>;
port { port {
tda998x_0_input: endpoint { tda998x_0_input: endpoint {
remote-endpoint = <&dp_pl0_out0>; remote-endpoint = <&dp_pl0_out0>;
@ -255,6 +257,52 @@
}; };
}; };
}; };
iofpga_i2s: xlnx-i2s@1c150000 {
#sound-dai-cells = <0>;
compatible = "xlnx,i2s-transmitter-1.0";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x0 0x1c150000 0x0 0x10000>;
xlnx,dwidth = <0x18>;
xlnx,num-channels = <1>;
};
audio_formatter: audio-formatter@1c100000 {
compatible = "xlnx,audio-formatter-1.0";
reg = <0x0 0x1c000000 0x0 0x10000>;
#sound-dai-cells = <0>;
interrupt-names = "irq_mm2s";
interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "s_axi_lite_aclk", "aud_mclk", "m_axis_mm2s_aclk";
clocks = <&soc_refclk85mhz>, <&i2s_audclk>, <&soc_refclk85mhz>;
};
sound {
compatible = "simple-audio-card";
simple-audio-card,format = "i2s";
simple-audio-card,bitclock-master = <&audio_master>;
simple-audio-card,frame-master = <&audio_master>;
audio_master: simple-audio-card,cpu {
sound-dai = <&iofpga_i2s>;
clocks = <&i2s_audclk>;
};
simple-audio-card,codec {
sound-dai = <&hdmi_tx>;
};
simple-audio-card,plat {
sound-dai = <&audio_formatter>;
};
};
i2s_audclk: i2s_audclk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <12288000>;
clock-output-names = "iofpga:i2s_audclk";
};
}; };
&gic { &gic {

9
fdts/morello.dtsi
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2020-2022, Arm Limited. All rights reserved. * Copyright (c) 2020-2023, Arm Limited. All rights reserved.
* *
* SPDX-License-Identifier: BSD-3-Clause * SPDX-License-Identifier: BSD-3-Clause
*/ */
@ -88,6 +88,13 @@
clock-output-names = "apb_pclk"; clock-output-names = "apb_pclk";
}; };
soc_refclk85mhz: refclk85mhz {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <85000000>;
clock-output-names = "iofpga:aclk";
};
soc_uartclk: uartclk { soc_uartclk: uartclk {
compatible = "fixed-clock"; compatible = "fixed-clock";
#clock-cells = <0>; #clock-cells = <0>;