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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2026 10:45:47.2495 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5c1da615-9b86-4762-154c-08de51c7beba X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.195];Helo=[lewvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF00000143.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR10MB5903 Content-Type: text/plain; charset="utf-8" The ti,j721e-system-controller binding currently only allows clock-controller@ child nodes to reference the ti,am654-ehrpwm-tbclk schema. However, the system controller on J721S2 also contains audio reference clock controllers (ti,am62-audio-refclk) that use the same clock-controller@XXXX naming pattern. Hence, extend the clock-controller pattern to accept either ehrpwm-tbclk or audio-refclk schemas using a oneOf constraint. Signed-off-by: Moteen Shah Reviewed-by: Rob Herring (Arm) --- .../bindings/soc/ti/ti,j721e-system-controller.yaml | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/soc/ti/ti,j721e-system-contr= oller.yaml b/Documentation/devicetree/bindings/soc/ti/ti,j721e-system-contr= oller.yaml index f3bd0be3b279..d5d84a8f1257 100644 --- a/Documentation/devicetree/bindings/soc/ti/ti,j721e-system-controller.y= aml +++ b/Documentation/devicetree/bindings/soc/ti/ti,j721e-system-controller.y= aml @@ -53,9 +53,11 @@ patternProperties: =20 "^clock-controller@[0-9a-f]+$": type: object - $ref: /schemas/clock/ti,am654-ehrpwm-tbclk.yaml# + oneOf: + - $ref: /schemas/clock/ti,am654-ehrpwm-tbclk.yaml# + - $ref: /schemas/clock/ti,am62-audio-refclk.yaml# description: - Clock provider for TI EHRPWM nodes. + Clock provider for TI EHRPWM or Audio Reference Clock nodes. =20 "phy@[0-9a-f]+$": type: object --=20 2.34.1 From nobody Sun Feb 8 06:49:20 2026 Received: from CH5PR02CU005.outbound.protection.outlook.com (mail-northcentralusazon11012050.outbound.protection.outlook.com [40.107.200.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB49A33DED4; 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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2026 10:45:54.9566 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: dfa3bc06-fe0b-4441-0dac-08de51c7c353 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.194];Helo=[flwvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CH3PEPF00000013.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR10MB4442 Content-Type: text/plain; charset="utf-8" From: Jayesh Choudhary On J721S2 SoC, the AUDIO_REFCLK1 can be used as input to external peripherals when configured through CTRL_MMR. Add audio_refclk1 node which would be used as system clock for audio codec PCM3168A. Signed-off-by: Jayesh Choudhary Signed-off-by: Moteen Shah Reviewed-by: Hari Prasath Gujulan Elango --- arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/d= ts/ti/k3-j721s2-main.dtsi index 80c51b11ac9f..3ecc7c973205 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi @@ -75,6 +75,15 @@ ehrpwm_tbclk: clock-controller@140 { reg =3D <0x140 0x18>; #clock-cells =3D <1>; }; + + audio_refclk1: clock-controller@42e4 { + compatible =3D "ti,am62-audio-refclk"; + reg =3D <0x42e4 0x4>; + clocks =3D <&k3_clks 157 299>; + assigned-clocks =3D <&k3_clks 157 299>; + assigned-clock-parents =3D <&k3_clks 157 328>; + #clock-cells =3D <0>; + }; }; =20 main_ehrpwm0: pwm@3000000 { --=20 2.34.1 From nobody Sun Feb 8 06:49:20 2026 Received: from CH5PR02CU005.outbound.protection.outlook.com (mail-northcentralusazon11012033.outbound.protection.outlook.com [40.107.200.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ADEE628000B; 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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2026 10:45:56.7019 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c5ae5d07-e98c-4dc4-2149-08de51c7c45e X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.194];Helo=[flwvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CH3PEPF00000013.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4577 Content-Type: text/plain; charset="utf-8" From: Jayesh Choudhary The audio support on J721S2-EVM is using PCM3168A codec connected to McASP4 serializers. - Add the nodes for sound-card, audio codec, MAIN_I2C3 and McASP4. - Add pinmux for I2C3, McASP4, AUDIO_EXT_REFCLK1 and WKUP_GPIO_0. - Add necessary GPIO hogs to route the MAIN_I2C3 lines and McASP serializer. - Add idle-state as 1 in mux0 and mux1 to route McASP signals Signed-off-by: Jayesh Choudhary Signed-off-by: Moteen Shah Reviewed-by: Hari Prasath Gujulan Elango --- .../dts/ti/k3-j721s2-common-proc-board.dts | 131 ++++++++++++++++++ 1 file changed, 131 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/= arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts index 4fea99519113..d9269a16956c 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts @@ -150,6 +150,28 @@ transceiver4: can-phy4 { standby-gpios =3D <&exp_som 7 GPIO_ACTIVE_HIGH>; mux-states =3D <&mux1 1>; }; + + codec_audio: sound { + compatible =3D "ti,j7200-cpb-audio"; + model =3D "j721e-cpb"; + + ti,cpb-mcasp =3D <&mcasp4>; + ti,cpb-codec =3D <&pcm3168a_1>; + + clocks =3D <&k3_clks 213 0>, <&k3_clks 213 1>, + <&k3_clks 157 299>, <&k3_clks 157 328>; + clock-names =3D "cpb-mcasp-auxclk", "cpb-mcasp-auxclk-48000", + "cpb-codec-scki", "cpb-codec-scki-48000"; + }; + + i2c_mux: mux-controller-2 { + compatible =3D "gpio-mux"; + #mux-state-cells =3D <1>; + mux-gpios =3D <&wkup_gpio0 54 GPIO_ACTIVE_HIGH>; + idle-state =3D <1>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&main_i2c3_mux_pins_default>; + }; }; =20 &main_pmx0 { @@ -224,6 +246,22 @@ J721S2_IOPAD(0x03c, PIN_INPUT, 0) /* (U27) MCASP0_AFSX= .MCAN5_RX */ J721S2_IOPAD(0x038, PIN_OUTPUT, 0) /* (AB28) MCASP0_ACLKX.MCAN5_TX */ >; }; + + mcasp4_pins_default: mcasp4-default-pins { + pinctrl-single,pins =3D < + J721S2_IOPAD(0x0c8, PIN_OUTPUT_PULLDOWN, 1) /* (AD28) MCASP4_ACLKX */ + J721S2_IOPAD(0x06c, PIN_OUTPUT_PULLDOWN, 1) /* (V26) MCASP4_AFSX */ + J721S2_IOPAD(0x068, PIN_INPUT_PULLDOWN, 1) /* (U28) MCASP4_AXR1 */ + J721S2_IOPAD(0x0c4, PIN_OUTPUT_PULLDOWN, 1) /* (AB26) MCASP4_AXR2 */ + J721S2_IOPAD(0x070, PIN_OUTPUT_PULLDOWN, 1) /* (R27) MCASP4_AXR3 */ + >; + }; + + audio_ext_refclk1_pins_default: audio-ext-refclk1-default-pins { + pinctrl-single,pins =3D < + J721S2_IOPAD(0x078, PIN_OUTPUT, 1) /* (Y25) MCAN2_RX.AUDIO_EXT_REFCLK1 = */ + >; + }; }; =20 &wkup_pmx2 { @@ -321,6 +359,12 @@ J721S2_WKUP_IOPAD(0x104, PIN_INPUT, 0) /* (N26) MCU_AD= C1_AIN6 */ J721S2_WKUP_IOPAD(0x108, PIN_INPUT, 0) /* (N27) MCU_ADC1_AIN7 */ >; }; + + main_i2c3_mux_pins_default: main-i2c3-mux-default-pins { + pinctrl-single,pins =3D < + J721S2_WKUP_IOPAD(0x038, PIN_OUTPUT, 7) /* (B27) WKUP_GPIO0_54 */ + >; + }; }; =20 &wkup_pmx1 { @@ -396,6 +440,22 @@ exp2: gpio@22 { "MLB_MUX_SEL", "MCAN_MUX_SEL", "MCASP2/SPI3_MUX_SEL", "PCIe_CLKREQn_= MUX_SEL", "CDCI2_RSTZ", "ENET_EXP_PWRDN", "ENET_EXP_RESETZ", "ENET_I2CMUX_SEL", "ENET_EXP_SPARE2", "M2PCIE_RTSZ", "USER_INPUT1", "USER_LED1", "USER_= LED2"; + + p09-hog { + /* P09 - MCASP/TRACE_MUX_S0 */ + gpio-hog; + gpios =3D <9 GPIO_ACTIVE_HIGH>; + output-low; + line-name =3D "MCASP/TRACE_MUX_S0"; + }; + + p10-hog { + /* P10 - MCASP/TRACE_MUX_S1 */ + gpio-hog; + gpios =3D <10 GPIO_ACTIVE_HIGH>; + output-high; + line-name =3D "MCASP/TRACE_MUX_S1"; + }; }; }; =20 @@ -657,3 +717,74 @@ &dphy_tx0 { &dsi0 { status =3D "okay"; }; + +&mux0 { + idle-state =3D <0>; +}; + +&mux1 { + idle-state =3D <0>; +}; + +&exp_som { + p03-hog { + /* P03 - CANUART_MUX_SEL1 */ + gpio-hog; + gpios =3D <3 GPIO_ACTIVE_HIGH>; + output-high; + line-name =3D "CANUART_MUX_SEL1"; + }; +}; + +&k3_clks { + /* Confiure AUDIO_EXT_REFCLK1 pin as output */ + pinctrl-names =3D "default"; + pinctrl-0 =3D <&audio_ext_refclk1_pins_default>; +}; + +&main_i2c3 { + status =3D "okay"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&main_i2c3_pins_default>; + clock-frequency =3D <400000>; + mux-states =3D <&i2c_mux 1>; + + exp3: gpio@20 { + compatible =3D "ti,tca6408"; + reg =3D <0x20>; + gpio-controller; + #gpio-cells =3D <2>; + }; + + pcm3168a_1: audio-codec@44 { + compatible =3D "ti,pcm3168a"; + reg =3D <0x44>; + #sound-dai-cells =3D <1>; + reset-gpios =3D <&exp3 0 GPIO_ACTIVE_LOW>; + /* C_AUDIO_REFCLK1 -> MCAN2_RX (Y25) */ + clocks =3D <&audio_refclk1>; + clock-names =3D "scki"; + VDD1-supply =3D <&vsys_3v3>; + VDD2-supply =3D <&vsys_3v3>; + VCCAD1-supply =3D <&vsys_5v0>; + VCCAD2-supply =3D <&vsys_5v0>; + VCCDA1-supply =3D <&vsys_5v0>; + VCCDA2-supply =3D <&vsys_5v0>; + }; +}; + +&mcasp4 { + status =3D "okay"; + #sound-dai-cells =3D <0>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&mcasp4_pins_default>; + op-mode =3D <0>; /* MCASP_IIS_MODE */ + tdm-slots =3D <2>; + auxclk-fs-ratio =3D <256>; + serial-dir =3D < /* 0: INACTIVE, 1: TX, 2: RX */ + 0 2 1 1 + 0 0 0 0 + 0 0 0 0 + 0 0 0 0 + >; +}; --=20 2.34.1