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Fri, 29 May 2026 09:12:32 -0500 Date: Fri, 29 May 2026 09:12:32 -0500 From: Nishanth Menon To: Swamil Jain CC: , , , , , , , , , , , Subject: Re: [PATCH v2] arm64: dts: ti: k3-am62l: Add HDMI & DSI support Message-ID: <20260529141232.dbtqg6mudjy3dlwh@grandkid> References: <20260528133529.3476499-1-s-jain1@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20260528133529.3476499-1-s-jain1@ti.com> X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF00020E65:EE_|DS3PR10MB997750:EE_ X-MS-Office365-Filtering-Correlation-Id: aaa7c389-eb2e-4806-3d4c-08debd8c64c6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700016|376014|1800799024|56012099006|18002099003|6133799003|22082099003|3023799007; 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)(56012099006)(18002099003)(6133799003)(22082099003)(3023799007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: CFu5On7xgEsdDxt7kZihCge158Dsce2qoVuKENz+BSQJwzVBDxFhMokCWTleTMg3zutyEPzXCSTaRwXyjNGHbBivn9pD1WgJeC4k5BPa9+0RUfGfUEDvCxJ/81sMzNtRtpVYnHZTlhlSMmQVQdFX+0oZHBxTV8cIcpimyOQ75cxpHEeYsudkXwtisyxok+VjDGX0+RA3JdukZjqB+LQ0rhlha8wgUsgCekMQzEOecHkra5l5po1OjUnyV9VWGcvnNSF23B9hUzO6XOx8te/kPeeK8CvBYqsurm5qIBD2IimccLlRyusLtSKgFzseMrp3RsTAURcMslMdurppc6wg7IVN1qmFfnIa2fuCwk/47S/b/UFTKsv+cphiJfAFpbOFMvjLCu2gXuIgYUEiG1UXcUU3XGm3HMQIWh3oezRpEviffKJagZWP2lsqr2fw2FD2 X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 May 2026 14:13:01.5797 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: aaa7c389-eb2e-4806-3d4c-08debd8c64c6 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: BL6PEPF00020E65.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS3PR10MB997750 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260529_071309_007730_90748B63 X-CRM114-Status: GOOD ( 20.21 ) 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 19:05-20260528, 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 1. please split this up. please dont mix the SoC with evm stuff. 2. I suggest DPI output be a overlay as well > > 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"; > + }; > }; > 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; > }; > + > + hdmi0: connector-hdmi { > + compatible = "hdmi-connector"; > + label = "hdmi"; > + type = "a"; > + > + port { > + hdmi_connector_in: endpoint { > + remote-endpoint = <&sii9022_out>; > + }; > + }; > + }; > }; > > &gpio0 { > @@ -192,6 +204,38 @@ exp2: gpio@23 { > bootph-all; > }; > > + sii9022: bridge-hdmi@3b { > + compatible = "sil,sii9022"; > + reg = <0x3b>; > + interrupt-parent = <&exp1>; > + interrupts = <20 IRQ_TYPE_EDGE_FALLING>; I see you addressed sashiko comments https://lore.kernel.org/all/20260514112012.0B0D0C2BCB3@smtp.kernel.org/ but i dont see evidence of HPD working. logs please for the next rev. > + #sound-dai-cells = <0>; > + sil,i2s-data-lanes = < 0 >; > + pinctrl-names = "default"; > + pinctrl-0 = <&dpi_pins_default>; > + bootph-all; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + sii9022_in: endpoint { > + remote-endpoint = <&dpi_out>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + sii9022_out: endpoint { > + remote-endpoint = <&hdmi_connector_in>; > + }; > + }; > + }; > + }; > }; > > &i2c2 { > @@ -221,6 +265,41 @@ usb_con_hs: endpoint { > }; > > &pmx0 { > + dpi_pins_default: dpi-default-pins { > + pinctrl-single,pins = < > + AM62LX_IOPAD(0x00e4, PIN_OUTPUT, 1) /* (L20) GPMC0_CSn0.VOUT0_VSYNC */ > + AM62LX_IOPAD(0x00dc, PIN_OUTPUT, 1) /* (N21) GPMC0_WPn.VOUT0_HSYNC */ > + AM62LX_IOPAD(0x00e8, PIN_OUTPUT, 1) /* (L19) GPMC0_CSn1.VOUT0_PCLK */ > + AM62LX_IOPAD(0x00e0, PIN_OUTPUT, 1) /* (M21) GPMC0_DIR.VOUT0_DE */ > + AM62LX_IOPAD(0x0078, PIN_OUTPUT, 1) /* (L22) GPMC0_AD0.VOUT0_DATA0 */ > + AM62LX_IOPAD(0x007c, PIN_OUTPUT, 1) /* (L23) GPMC0_AD1.VOUT0_DATA1 */ > + AM62LX_IOPAD(0x0080, PIN_OUTPUT, 1) /* (K22) GPMC0_AD2.VOUT0_DATA2 */ > + AM62LX_IOPAD(0x0084, PIN_OUTPUT, 1) /* (J23) GPMC0_AD3.VOUT0_DATA3 */ > + AM62LX_IOPAD(0x0088, PIN_OUTPUT, 1) /* (K23) GPMC0_AD4.VOUT0_DATA4 */ > + AM62LX_IOPAD(0x008c, PIN_OUTPUT, 1) /* (H22) GPMC0_AD5.VOUT0_DATA5 */ > + AM62LX_IOPAD(0x0090, PIN_OUTPUT, 1) /* (H23) GPMC0_AD6.VOUT0_DATA6 */ > + AM62LX_IOPAD(0x0094, PIN_OUTPUT, 1) /* (J22) GPMC0_AD7.VOUT0_DATA7 */ > + AM62LX_IOPAD(0x0098, PIN_OUTPUT, 1) /* (H19) GPMC0_AD8.VOUT0_DATA8 */ > + AM62LX_IOPAD(0x009c, PIN_OUTPUT, 1) /* (H20) GPMC0_AD9.VOUT0_DATA9 */ > + AM62LX_IOPAD(0x00a0, PIN_OUTPUT, 1) /* (H21) GPMC0_AD10.VOUT0_DATA10 */ > + AM62LX_IOPAD(0x00a4, PIN_OUTPUT, 1) /* (H18) GPMC0_AD11.VOUT0_DATA11 */ > + AM62LX_IOPAD(0x00a8, PIN_OUTPUT, 1) /* (G23) GPMC0_AD12.VOUT0_DATA12 */ > + AM62LX_IOPAD(0x00ac, PIN_OUTPUT, 1) /* (G22) GPMC0_AD13.VOUT0_DATA13 */ > + AM62LX_IOPAD(0x00b0, PIN_OUTPUT, 1) /* (F22) GPMC0_AD14.VOUT0_DATA14 */ > + AM62LX_IOPAD(0x00b4, PIN_OUTPUT, 1) /* (F23) GPMC0_AD15.VOUT0_DATA15 */ > + AM62LX_IOPAD(0x00b8, PIN_OUTPUT, 1) /* (L21) GPMC0_CLK.VOUT0_DATA16 */ > + AM62LX_IOPAD(0x00c0, PIN_OUTPUT, 1) /* (N19) GPMC0_ADVn_ALE.VOUT0_DATA17 */ > + AM62LX_IOPAD(0x00c4, PIN_OUTPUT, 1) /* (N20) GPMC0_OEn_REn.VOUT0_DATA18 */ > + AM62LX_IOPAD(0x00c8, PIN_OUTPUT, 1) /* (M19) GPMC0_WEn.VOUT0_DATA19 */ > + AM62LX_IOPAD(0x00cc, PIN_OUTPUT, 1) /* (P23) GPMC0_BE0n_CLE.VOUT0_DATA20 */ > + AM62LX_IOPAD(0x00d0, PIN_OUTPUT, 1) /* (P22) GPMC0_BE1n.VOUT0_DATA21 */ > + AM62LX_IOPAD(0x00d4, PIN_OUTPUT, 1) /* (N23) GPMC0_WAIT0.VOUT0_DATA22 */ > + AM62LX_IOPAD(0x00d8, PIN_OUTPUT, 1) /* (N22) GPMC0_WAIT1.VOUT0_DATA23 */ > + AM62LX_IOPAD(0x00ec, PIN_OUTPUT, 5) /* (M23) GPMC0_CSn2.VOUT0_EXTPCLKIN */ > + >; > + bootph-all; > + }; > + > gpio0_ioexp_intr_pins_default: gpio0-ioexp-intr-default-pins { > pinctrl-single,pins = < > AM62LX_IOPAD(0x01b0, PIN_INPUT, 7) /* (B12) SPI0_D1.GPIO0_91 */ > @@ -375,6 +454,22 @@ &usb1 { > pinctrl-0 = <&usb1_default_pins>; > }; > > +&dss { > + status = "okay"; > + bootph-all; > +}; > + > +&dss_ports { > + /* VP1: DPI Output */ > + port@0 { > + reg = <0>; > + > + dpi_out: endpoint { > + remote-endpoint = <&sii9022_in>; > + }; > + }; > +}; > + Did we miss routing audio? I think it has an option of going to M2.key > &wkup_uart0 { > pinctrl-0 = <&wkup_uart0_pins_default>; > pinctrl-names = "default"; > -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D https://ti.com/opensource