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Received: from AM7PR04MB7046.eurprd04.prod.outlook.com (2603:10a6:20b:113::22) by VI1PR04MB9809.eurprd04.prod.outlook.com (2603:10a6:800:1dc::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7875.21; Mon, 19 Aug 2024 07:36:51 +0000 Received: from AM7PR04MB7046.eurprd04.prod.outlook.com ([fe80::d1ce:ea15:6648:6f90]) by AM7PR04MB7046.eurprd04.prod.outlook.com ([fe80::d1ce:ea15:6648:6f90%2]) with mapi id 15.20.7875.019; Mon, 19 Aug 2024 07:36:51 +0000 Message-ID: Date: Mon, 19 Aug 2024 15:37:14 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 06/19] dt-bindings: display: imx: Add i.MX8qxp Display Controller command sequencer To: Rob Herring Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, tglx@linutronix.de, vkoul@kernel.org, kishon@kernel.org, aisheng.dong@nxp.com, agx@sigxcpu.org, francesco@dolcini.it, frank.li@nxp.com References: <20240724092950.752536-1-victor.liu@nxp.com> <20240724092950.752536-7-victor.liu@nxp.com> <20240816223710.GA2394350-robh@kernel.org> From: Liu Ying Content-Language: en-US In-Reply-To: <20240816223710.GA2394350-robh@kernel.org> Content-Type: text/plain; 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(Rob) >> >> .../imx/fsl,imx8qxp-dc-command-sequencer.yaml | 67 +++++++++++++++++++ >> 1 file changed, 67 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml >> >> diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml >> new file mode 100644 >> index 000000000000..2e0e8e40a185 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml >> @@ -0,0 +1,67 @@ >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-command-sequencer.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Freescale i.MX8qxp Display Controller Command Sequencer >> + >> +description: | >> + The Command Sequencer is designed to autonomously process command lists. >> + By that it can load setups into the DC configuration and synchronize to >> + hardware events. This releases a system's CPU from workload, because it >> + does not need to wait for certain events. Also it simplifies SW architecture, >> + because no interrupt handlers are required. Setups are read via AXI bus, >> + while write access to configuration registers occurs directly via an internal >> + bus. This saves bandwidth for the AXI interconnect and improves the system >> + architecture in terms of safety aspects. >> + >> +maintainers: >> + - Liu Ying >> + >> +properties: >> + compatible: >> + const: fsl,imx8qxp-dc-command-sequencer >> + >> + reg: >> + maxItems: 1 >> + >> + clocks: >> + maxItems: 1 >> + >> + interrupts: >> + maxItems: 5 >> + >> + interrupt-names: >> + items: >> + - const: error >> + - const: sw0 >> + - const: sw1 >> + - const: sw2 >> + - const: sw3 >> + >> + fsl,iram: >> + $ref: /schemas/types.yaml#/definitions/phandle >> + description: phandle pointing to the mmio-sram device node > > 'sram' is the standard property for this. Will use 'sram' in next version. Thanks. > >> + >> +required: >> + - compatible >> + - reg >> + - clocks >> + - interrupts >> + - interrupt-names >> + >> +additionalProperties: false >> + >> +examples: >> + - | >> + #include >> + >> + command-sequencer@56180400 { >> + compatible = "fsl,imx8qxp-dc-command-sequencer"; >> + reg = <0x56180400 0x1a4>; >> + clocks = <&dc0_lpcg IMX_LPCG_CLK_5>; >> + interrupt-parent = <&dc0_intc>; >> + interrupts = <36>, <37>, <38>, <39>, <40>; >> + interrupt-names = "error", "sw0", "sw1", "sw2", "sw3"; >> + }; >> -- >> 2.34.1 >> > -- Regards, Liu Ying