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Fri, 16 Jan 2026 05:52:51 -0600 Received: from [172.24.235.213] (gehariprasath.dhcp.ti.com [172.24.235.213]) by lelvem-mr05.itg.ti.com (8.18.1/8.18.1) with ESMTP id 60GBqlDv3228308; Fri, 16 Jan 2026 05:52:48 -0600 Message-ID: <4a46cbb7-f1b7-4509-8bd1-ffb192d1e2e9@ti.com> Date: Fri, 16 Jan 2026 17:22:47 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/3] arm64: dts: ti: k3-j721s2-common-proc-board: Enable analog audio support To: Moteen Shah , , , , , , CC: , , , , References: <20260112104536.83309-1-m-shah@ti.com> <20260112104536.83309-4-m-shah@ti.com> Content-Language: en-US From: Hari Prasath In-Reply-To: <20260112104536.83309-4-m-shah@ti.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B076:EE_|SJ0PR10MB5765:EE_ X-MS-Office365-Filtering-Correlation-Id: 51ca4319-d7d2-4240-7e53-08de54f5c9d5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|82310400026|36860700013|34020700016|1800799024; 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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Jan 2026 11:52:56.1944 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 51ca4319-d7d2-4240-7e53-08de54f5c9d5 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.195];Helo=[flwvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B076.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR10MB5765 On 12/01/26 4:15 pm, Moteen Shah wrote: > 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 > --- Looks good, 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 = <&exp_som 7 GPIO_ACTIVE_HIGH>; > mux-states = <&mux1 1>; > }; > + > + codec_audio: sound { > + compatible = "ti,j7200-cpb-audio"; > + model = "j721e-cpb"; > + > + ti,cpb-mcasp = <&mcasp4>; > + ti,cpb-codec = <&pcm3168a_1>; > + > + clocks = <&k3_clks 213 0>, <&k3_clks 213 1>, > + <&k3_clks 157 299>, <&k3_clks 157 328>; > + clock-names = "cpb-mcasp-auxclk", "cpb-mcasp-auxclk-48000", > + "cpb-codec-scki", "cpb-codec-scki-48000"; > + }; > + > + i2c_mux: mux-controller-2 { > + compatible = "gpio-mux"; > + #mux-state-cells = <1>; > + mux-gpios = <&wkup_gpio0 54 GPIO_ACTIVE_HIGH>; > + idle-state = <1>; > + pinctrl-names = "default"; > + pinctrl-0 = <&main_i2c3_mux_pins_default>; > + }; > }; > > &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 = < > + 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 = < > + J721S2_IOPAD(0x078, PIN_OUTPUT, 1) /* (Y25) MCAN2_RX.AUDIO_EXT_REFCLK1 */ > + >; > + }; > }; > > &wkup_pmx2 { > @@ -321,6 +359,12 @@ J721S2_WKUP_IOPAD(0x104, PIN_INPUT, 0) /* (N26) MCU_ADC1_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 = < > + J721S2_WKUP_IOPAD(0x038, PIN_OUTPUT, 7) /* (B27) WKUP_GPIO0_54 */ > + >; > + }; > }; > > &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 = <9 GPIO_ACTIVE_HIGH>; > + output-low; > + line-name = "MCASP/TRACE_MUX_S0"; > + }; > + > + p10-hog { > + /* P10 - MCASP/TRACE_MUX_S1 */ > + gpio-hog; > + gpios = <10 GPIO_ACTIVE_HIGH>; > + output-high; > + line-name = "MCASP/TRACE_MUX_S1"; > + }; > }; > }; > > @@ -657,3 +717,74 @@ &dphy_tx0 { > &dsi0 { > status = "okay"; > }; > + > +&mux0 { > + idle-state = <0>; > +}; > + > +&mux1 { > + idle-state = <0>; > +}; > + > +&exp_som { > + p03-hog { > + /* P03 - CANUART_MUX_SEL1 */ > + gpio-hog; > + gpios = <3 GPIO_ACTIVE_HIGH>; > + output-high; > + line-name = "CANUART_MUX_SEL1"; > + }; > +}; > + > +&k3_clks { > + /* Confiure AUDIO_EXT_REFCLK1 pin as output */ > + pinctrl-names = "default"; > + pinctrl-0 = <&audio_ext_refclk1_pins_default>; > +}; > + > +&main_i2c3 { > + status = "okay"; > + pinctrl-names = "default"; > + pinctrl-0 = <&main_i2c3_pins_default>; > + clock-frequency = <400000>; > + mux-states = <&i2c_mux 1>; > + > + exp3: gpio@20 { > + compatible = "ti,tca6408"; > + reg = <0x20>; > + gpio-controller; > + #gpio-cells = <2>; > + }; > + > + pcm3168a_1: audio-codec@44 { > + compatible = "ti,pcm3168a"; > + reg = <0x44>; > + #sound-dai-cells = <1>; > + reset-gpios = <&exp3 0 GPIO_ACTIVE_LOW>; > + /* C_AUDIO_REFCLK1 -> MCAN2_RX (Y25) */ > + clocks = <&audio_refclk1>; > + clock-names = "scki"; > + VDD1-supply = <&vsys_3v3>; > + VDD2-supply = <&vsys_3v3>; > + VCCAD1-supply = <&vsys_5v0>; > + VCCAD2-supply = <&vsys_5v0>; > + VCCDA1-supply = <&vsys_5v0>; > + VCCDA2-supply = <&vsys_5v0>; > + }; > +}; > + > +&mcasp4 { > + status = "okay"; > + #sound-dai-cells = <0>; > + pinctrl-names = "default"; > + pinctrl-0 = <&mcasp4_pins_default>; > + op-mode = <0>; /* MCASP_IIS_MODE */ > + tdm-slots = <2>; > + auxclk-fs-ratio = <256>; > + serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */ > + 0 2 1 1 > + 0 0 0 0 > + 0 0 0 0 > + 0 0 0 0 > + >; > +};