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Fri, 29 May 2026 03:58:44 -0500 Message-ID: Date: Fri, 29 May 2026 14:28:43 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] arm64: dts: ti: k3-am62l: Add HDMI & DSI support To: Swamil Jain , , , , , , , CC: , , , , , References: <20260528133529.3476499-1-s-jain1@ti.com> Content-Language: en-US From: "Kumar, Udit" In-Reply-To: <20260528133529.3476499-1-s-jain1@ti.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF000001D6:EE_|IA1PR10MB6074:EE_ X-MS-Office365-Filtering-Correlation-Id: 141d6efc-4ebd-4cad-13d1-08debd609344 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700016|376014|1800799024|18002099003|22082099003|6133799003|3023799007|56012099006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:198.47.21.195;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:flwvzet201.ext.ti.com;PTR:ErrorRetry;CAT:NONE;SFS:(13230040)(82310400026)(36860700016)(376014)(1800799024)(18002099003)(22082099003)(6133799003)(3023799007)(56012099006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: AC1LSARLPwRDj6DbSJ49vTveGE6ClxA2nvc8S7X60/kc7zeMIJ4XvJMEfZ4mHBDdJ2Q7nQ6P18M+u9Vw/x6TxKXIvj9X/Uyjz5YS8H4jJpd68lCCRB9db/3rNKGmxgeE35qAIigtGK0RcSoZ2jpK85wp9cA6hvIz+U9ZmHuVokm2c+5QraZ9AJOXLuk8Pym+rQypl1Fyd4dZtW8xibn8mSCnOJru1rkZ2n1NZHrsK6/fE1/10cUQzMrgu2CPXALIF62f1OC7en9cpa5WuPb7r3FhR07YNyXNVNy+ELwNUQGZDFz/G5n/EiW+ZV9gPS9M7UXMMIjs2OktwhvpYIRkT6O29m7pYyHpofZkJXpMM52XpD/KtTxqaayYS7vAlhpPuoKFNMRnQI6FAHD1NN8NBEExyvy4L6NEfRIBsed7h0yz4WZzcxwyW9z2bf01NEbu X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 May 2026 08:59:21.7160 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 141d6efc-4ebd-4cad-13d1-08debd609344 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: SJ5PEPF000001D6.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR10MB6074 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260529_015931_143043_E6674694 X-CRM114-Status: GOOD ( 16.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 5/28/2026 7:05 PM, Swamil Jain wrote: > From: Devarsh Thakkar > > Add DSS, DSI, DPHY, and HDMI bridge nodes to enable DPI-to-HDMI output > on AM62L[1]. The DSS uses parallel DPI interface with pinctrl > configuration to drive an external SiI9022 HDMI bridge. > > DSI and DPHY nodes are added but remain disabled, as the AM62L shares a > single video port for DPI and DSI output. > > DSI functionality can be enabled via overlays when required. > > [1]: https://www.ti.com/product/AM62L > > Signed-off-by: Devarsh Thakkar > Signed-off-by: Swamil Jain > --- > Changelog: > v1->v2: > - Update the commit message to elaborate more about the patch. > - Add dpi-pinctrl configuration. > - Update the interrupt routing index for HDMI interrupt line > > Link to v1: https://lore.kernel.org/all/20260513210942.692269-1-s-jain1@ti.com/ > --- > arch/arm64/boot/dts/ti/k3-am62l-main.dtsi | 47 +++++++++++ > arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 95 +++++++++++++++++++++++ > 2 files changed, 142 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi > index 80615ca1e01a..1d255c9138db 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-am62l-main.dtsi > @@ -584,4 +584,51 @@ scmi_shmem: sram@0 { > bootph-all; > }; > }; > + > + dss: dss@30200000 { > + compatible = "ti,am62l-dss"; > + reg = <0x00 0x30200000 0x00 0x1000>, /* common */ > + <0x00 0x30202000 0x00 0x1000>, /* vidl1 */ > + <0x00 0x30207000 0x00 0x1000>, /* ovr1 */ > + <0x00 0x3020a000 0x00 0x1000>, /* vp1 */ > + <0x00 0x30201000 0x00 0x1000>; /* common1 */ > + reg-names = "common", "vidl1", "ovr1", "vp1", "common1"; > + power-domains = <&scmi_pds 39>; > + clocks = <&scmi_clk 162>, > + <&scmi_clk 161>; > + clock-names = "fck", "vp1"; > + interrupts = ; > + status = "disabled"; > + > + dss_ports: ports { > + #address-cells = <1>; > + #size-cells = <0>; > + }; > + }; > + > + dphy_tx0: phy@301c0000 { > + compatible = "ti,j721e-dphy"; > + reg = <0x0 0x301c0000 0x0 0x1000>; > + clocks = <&scmi_clk 348>, <&scmi_clk 343>; > + clock-names = "psm", "pll_ref"; > + #phy-cells = <0>; > + power-domains = <&scmi_pds 86>; > + assigned-clocks = <&scmi_clk 343>; > + assigned-clock-parents = <&scmi_clk 341>; > + assigned-clock-rates = <25000000>; > + status = "disabled"; > + }; > + > + dsi0: dsi@30500000 { > + compatible = "ti,j721e-dsi"; > + reg = <0x0 0x30500000 0x0 0x100000>, <0x0 0x30270000 0x0 0x100>; > + clocks = <&scmi_clk 155>, <&scmi_clk 158>; > + clock-names = "dsi_p_clk", "dsi_sys_clk"; > + power-domains = <&scmi_pds 38>; > + interrupt-parent = <&gic500>; > + interrupts = ; > + phys = <&dphy_tx0>; > + phy-names = "dphy"; > + status = "disabled"; I think you should add port information for dsi as well see DSI node in other SOC (J721E, J721S2, J784s4) for reference. > + }; > }; > diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts > index a1af4571a815..9b04fa6d2cba 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts > +++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts > @@ -119,6 +119,18 @@ vcc_1v8: regulator-3 { > regulator-always-on; > regulator-boot-on; > }; > + [..]