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Message-ID: <1537953603.20272.4.camel@mtksdaap41>
Subject: Re: [Resend PATCH 5/5] arm: dts: mt7623: add display subsystem
 related device nodes
From:   CK Hu <ck.hu@mediatek.com>
To:     Ryder Lee <ryder.lee@mediatek.com>
CC:     Matthias Brugger <matthias.bgg@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Sean Wang <sean.wang@mediatek.com>,
        Roy Luo <cheng-hao.luo@mediatek.com>,
        Weijie Gao <weijie.gao@mediatek.com>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        chunhui dai <chunhui.dai@mediatek.com>,
        Bibby Hsieh <bibby.hsieh@mediatek.com>
Date:   Wed, 26 Sep 2018 17:20:03 +0800
In-Reply-To: <7105c341de3525761ad4067ca57c641c7097f773.1536155449.git.ryder.lee@mediatek.com>
References: <84011aa94dd7be9239b7a2f944dd30fc70568fbb.1536155449.git.ryder.lee@mediatek.com>
         <7105c341de3525761ad4067ca57c641c7097f773.1536155449.git.ryder.lee@mediatek.com>
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Hi, Ryder:

More inline comment.

On Wed, 2018-09-05 at 22:09 +0800, Ryder Lee wrote:
> Add display subsystem related device nodes for MT7623.
> 
> Cc: CK Hu <ck.hu@mediatek.com>
> Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
> Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
> ---
> I forgot to sort nodes in my previous mail. Sorry for the inconvenience.
> 
> This patch depends on the series: https://lkml.org/lkml/2018/9/5/223
> 
> @Matthias,
> I know you're working on broken MMSYS - just want to ask whether it's possible
> to let the patch to go to your tree (if others are okay with it), and send a
> fixup one for MT7623 MMSYS later?
> ---
>  arch/arm/boot/dts/mt7623.dtsi                 | 177 ++++++++++++++++++++++++++
>  arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts |  83 ++++++++++++
>  arch/arm/boot/dts/mt7623n-rfb-emmc.dts        |  83 ++++++++++++
>  3 files changed, 343 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/mt7623.dtsi b/arch/arm/boot/dts/mt7623.dtsi
> index d01bdee..fdf9078 100644
> --- a/arch/arm/boot/dts/mt7623.dtsi
> +++ b/arch/arm/boot/dts/mt7623.dtsi
> @@ -23,6 +23,11 @@
>  	#address-cells = <2>;
>  	#size-cells = <2>;
>  
> +	aliases {
> +		rdma0 = &rdma0;
> +		rdma1 = &rdma1;
> +	};
> +
>  	cpu_opp_table: opp-table {
>  		compatible = "operating-points-v2";
>  		opp-shared;
> @@ -311,6 +316,25 @@
>  		clock-names = "spi", "wrap";
>  	};
>  
> +	mipi_tx0: mipi-dphy@10010000 {
> +		compatible = "mediatek,mt7623-mipi-tx",
> +			     "mediatek,mt2701-mipi-tx";
> +		reg = <0 0x10010000 0 0x90>;
> +		clocks = <&clk26m>;
> +		clock-output-names = "mipi_tx0_pll";
> +		#clock-cells = <0>;
> +		#phy-cells = <0>;
> +	};
> +
> +	cec: cec@10012000 {
> +		compatible = "mediatek,mt7623-cec",
> +			     "mediatek,mt8173-cec";
> +		reg = <0 0x10012000 0 0xbc>;
> +		interrupts = <GIC_SPI 182 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&infracfg CLK_INFRA_CEC>;
> +		status = "disabled";
> +	};
> +
>  	cir: cir@10013000 {
>  		compatible = "mediatek,mt7623-cir";
>  		reg = <0 0x10013000 0 0x1000>;
> @@ -359,6 +383,18 @@
>  		#clock-cells = <1>;
>  	};
>  
> +	hdmi_phy: phy@10209100 {
> +		compatible = "mediatek,mt7623-hdmi-phy",
> +			     "mediatek,mt2701-hdmi-phy";
> +		reg = <0 0x10209100 0 0x24>;
> +		clocks = <&apmixedsys CLK_APMIXED_HDMI_REF>;
> +		clock-names = "pll_ref";
> +		clock-output-names = "hdmitx_dig_cts";
> +		#clock-cells = <0>;
> +		#phy-cells = <0>;
> +		status = "disabled";
> +	};
> +
>  	rng: rng@1020f000 {
>  		compatible = "mediatek,mt7623-rng";
>  		reg = <0 0x1020f000 0 0x1000>;
> @@ -558,6 +594,16 @@
>  		status = "disabled";
>  	};
>  
> +	hdmiddc0: i2c@11013000 {
> +		compatible = "mediatek,mt7623-hdmi-ddc",
> +			     "mediatek,mt8173-hdmi-ddc";
> +		interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_LOW>;
> +		reg = <0 0x11013000 0 0x1C>;
> +		clocks = <&pericfg CLK_PERI_I2C3>;
> +		clock-names = "ddc-i2c";
> +		status = "disabled";
> +	};
> +
>  	nor_flash: spi@11014000 {
>  		compatible = "mediatek,mt7623-nor",
>  			     "mediatek,mt8173-nor";
> @@ -732,6 +778,84 @@
>  		#clock-cells = <1>;
>  	};
>  
> +	display_components: dispsys@14000000 {
> +		compatible = "mediatek,mt7623-mmsys",
> +			     "mediatek,mt2701-mmsys";
> +		reg = <0 0x14000000 0 0x1000>;
> +		power-domains = <&scpsys MT2701_POWER_DOMAIN_DISP>;
> +	};
> +
> +	ovl@14007000 {
> +		compatible = "mediatek,mt7623-disp-ovl",
> +			     "mediatek,mt2701-disp-ovl";
> +		reg = <0 0x14007000 0 0x1000>;
> +		interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&mmsys CLK_MM_DISP_OVL>;
> +		iommus = <&iommu MT2701_M4U_PORT_DISP_OVL_0>;
> +		mediatek,larb = <&larb0>;
> +	};
> +
> +	rdma0: rdma@14008000 {
> +		compatible = "mediatek,mt7623-disp-rdma",
> +			     "mediatek,mt2701-disp-rdma";
> +		reg = <0 0x14008000 0 0x1000>;
> +		interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&mmsys CLK_MM_DISP_RDMA>;
> +		iommus = <&iommu MT2701_M4U_PORT_DISP_RDMA>;
> +		mediatek,larb = <&larb0>;
> +	};
> +
> +	wdma@14009000 {
> +		compatible = "mediatek,mt7623-disp-wdma",
> +			     "mediatek,mt2701-disp-wdma";
> +		reg = <0 0x14009000 0 0x1000>;
> +		interrupts = <GIC_SPI 154 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&mmsys CLK_MM_DISP_WDMA>;
> +		iommus = <&iommu MT2701_M4U_PORT_DISP_WDMA>;
> +		mediatek,larb = <&larb0>;
> +	};
> +
> +	bls: pwm@1400a000 {
> +		compatible = "mediatek,mt7623-disp-pwm",
> +			     "mediatek,mt2701-disp-pwm";
> +		reg = <0 0x1400a000 0 0x1000>;
> +		#pwm-cells = <2>;
> +		clocks = <&mmsys CLK_MM_MDP_BLS_26M>,
> +			 <&mmsys CLK_MM_DISP_BLS>;
> +		clock-names = "main", "mm";
> +		status = "disabled";
> +	};
> +
> +	color@1400b000 {
> +		compatible = "mediatek,mt7623-disp-color",
> +			     "mediatek,mt2701-disp-color";
> +		reg = <0 0x1400b000 0 0x1000>;
> +		interrupts = <GIC_SPI 156 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&mmsys CLK_MM_DISP_COLOR>;
> +	};
> +
> +	dsi: dsi@1400c000 {
> +		compatible = "mediatek,mt7623-dsi",
> +			     "mediatek,mt2701-dsi";
> +		reg = <0 0x1400c000 0 0x1000>;
> +		interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&mmsys CLK_MM_DSI_ENGINE>,
> +			 <&mmsys CLK_MM_DSI_DIG>,
> +			 <&mipi_tx0>;
> +		clock-names = "engine", "digital", "hs";
> +		phys = <&mipi_tx0>;
> +		phy-names = "dphy";
> +		status = "disabled";
> +	};
> +
> +	mutex: mutex@1400e000 {
> +		compatible = "mediatek,mt7623-disp-mutex",
> +			     "mediatek,mt2701-disp-mutex";
> +		reg = <0 0x1400e000 0 0x1000>;
> +		interrupts = <GIC_SPI 161 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&mmsys CLK_MM_MUTEX_32K>;
> +	};
> +
>  	larb0: larb@14010000 {
>  		compatible = "mediatek,mt7623-smi-larb",
>  			     "mediatek,mt2701-smi-larb";
> @@ -744,6 +868,44 @@
>  		power-domains = <&scpsys MT2701_POWER_DOMAIN_DISP>;
>  	};
>  
> +	rdma1: rdma@14012000 {
> +		compatible = "mediatek,mt7623-disp-rdma",
> +			     "mediatek,mt2701-disp-rdma";
> +		reg = <0 0x14012000 0 0x1000>;
> +		interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&mmsys CLK_MM_DISP_RDMA1>;
> +		iommus = <&iommu MT2701_M4U_PORT_DISP_RDMA1>;
> +		mediatek,larb = <&larb0>;
> +	};
> +
> +	dpi0: dpi@14014000 {
> +		compatible = "mediatek,mt7623-dpi",
> +			     "mediatek,mt2701-dpi";
> +		reg = <0 0x14014000 0 0x1000>;
> +		interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&mmsys CLK_MM_DPI1_DIGL>,
> +			 <&mmsys CLK_MM_DPI1_ENGINE>,
> +			 <&topckgen CLK_TOP_TVDPLL>;
> +		clock-names = "pixel", "engine", "pll";
> +		status = "disabled";
> +	};
> +
> +	hdmi0: hdmi@14015000 {
> +		compatible = "mediatek,mt7623-hdmi",
> +			     "mediatek,mt8173-hdmi";
> +		reg = <0 0x14015000 0 0x400>;
> +		clocks = <&mmsys CLK_MM_HDMI_PIXEL>,
> +			 <&mmsys CLK_MM_HDMI_PLL>,
> +			 <&mmsys CLK_MM_HDMI_AUDIO>,
> +			 <&mmsys CLK_MM_HDMI_SPDIF>;
> +		clock-names = "pixel", "pll", "bclk", "spdif";
> +		phys = <&hdmi_phy>;
> +		phy-names = "hdmi";
> +		mediatek,syscon-hdmi = <&mmsys 0x900>;
> +		cec = <&cec>;
> +		status = "disabled";
> +	};
> +
>  	imgsys: syscon@15000000 {
>  		compatible = "mediatek,mt7623-imgsys",
>  			     "mediatek,mt2701-imgsys",
> @@ -1071,6 +1233,21 @@
>  		};
>  	};
>  
> +	hdmi_pins_a: hdmi-default {
> +		pins-hdmi {
> +			pinmux = <MT7623_PIN_123_HTPLG_FUNC_HTPLG>;
> +			input-enable;
> +			bias-pull-down;
> +		};
> +	};
> +
> +	hdmi_ddc_pins_a: hdmi_ddc-default {
> +		pins-hdmi-ddc {
> +			pinmux = <MT7623_PIN_124_GPIO124_FUNC_HDMISCK>,
> +				 <MT7623_PIN_125_GPIO125_FUNC_HDMISD>;
> +		};
> +	};
> +
>  	i2c0_pins_a: i2c0-default {
>  		pins-i2c0 {
>  			pinmux = <MT7623_PIN_75_SDA0_FUNC_SDA0>,
> diff --git a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> index 2b760f9..dbce86b 100644
> --- a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> +++ b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> @@ -21,6 +21,19 @@
>  		stdout-path = "serial2:115200n8";
>  	};
>  
> +	connector {
> +		compatible = "hdmi-connector";
> +		label = "hdmi";
> +		type = "d";
> +		ddc-i2c-bus = <&hdmiddc0>;
> +
> +		port {
> +			hdmi_connector_in: endpoint {
> +				remote-endpoint = <&hdmi0_out>;
> +			};
> +		};
> +	};
> +
>  	cpus {
>  		cpu@0 {
>  			proc-supply = <&mt6323_vproc_reg>;
> @@ -114,10 +127,24 @@
>  	};
>  };
>  
> +&bls {
> +	status = "okay";
> +
> +	port {
> +		bls_out: endpoint {
> +			remote-endpoint = <&dpi0_in>;
> +		};
> +	};
> +};
> +
>  &btif {
>  	status = "okay";
>  };
>  
> +&cec {
> +	status = "okay";
> +};
> +
>  &cir {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&cir_pins_a>;
> @@ -128,6 +155,26 @@
>  	status = "okay";
>  };
>  
> +&dpi0 {
> +	status = "okay";
> +
> +	ports {
> +		port@0 {
> +			reg = <0>;
> +			dpi0_out: endpoint {
> +				remote-endpoint = <&hdmi0_in>;
> +			};
> +		};
> +
> +		port@1 {
> +			reg = <1>;
> +			dpi0_in: endpoint {
> +				remote-endpoint = <&bls_out>;
> +			};
> +		};
> +	};

This part is different with binding
(Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt), I
think you should modify the binding document.

> +};
> +
>  &eth {
>  	status = "okay";
>  
> @@ -199,6 +246,42 @@
>  	};
>  };
>  
> +&hdmi0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&hdmi_pins_a>;
> +	status = "okay";
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		port@0 {
> +			reg = <0>;
> +			hdmi0_in: endpoint {
> +				remote-endpoint = <&dpi0_out>;
> +			};
> +		};
> +
> +		port@1 {
> +			reg = <1>;
> +			hdmi0_out: endpoint {
> +				remote-endpoint = <&hdmi_connector_in>;
> +			};
> +		};
> +	};
> +};
> +
> +&hdmiddc0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&hdmi_ddc_pins_a>;
> +	status = "okay";
> +};
> +
> +&hdmi_phy {
> +	mediatek,ibias = <0xa>;
> +	mediatek,ibias_up = <0x1c>;
> +	status = "okay";
> +};
> +
>  &i2c0 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&i2c0_pins_a>;
> diff --git a/arch/arm/boot/dts/mt7623n-rfb-emmc.dts b/arch/arm/boot/dts/mt7623n-rfb-emmc.dts
> index b760613..bdf9010 100644
> --- a/arch/arm/boot/dts/mt7623n-rfb-emmc.dts
> +++ b/arch/arm/boot/dts/mt7623n-rfb-emmc.dts
> @@ -24,6 +24,19 @@
>  		stdout-path = "serial2:115200n8";
>  	};
>  
> +	connector {
> +		compatible = "hdmi-connector";
> +		label = "hdmi";
> +		type = "d";
> +		ddc-i2c-bus = <&hdmiddc0>;
> +
> +		port {
> +			hdmi_connector_in: endpoint {
> +				remote-endpoint = <&hdmi0_out>;
> +			};
> +		};
> +	};
> +
>  	cpus {
>  		cpu@0 {
>  			proc-supply = <&mt6323_vproc_reg>;
> @@ -106,10 +119,24 @@
>  	};
>  };
>  
> +&bls {
> +	status = "okay";
> +
> +	port {
> +		bls_out: endpoint {
> +			remote-endpoint = <&dpi0_in>;
> +		};
> +	};

This part is different with binding
(Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt),
I think you should modify the binding document.

Regards,
CK

> +};
> +
>  &btif {
>  	status = "okay";
>  };
>  
> +&cec {
> +	status = "okay";
> +};
> +
>  &cir {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&cir_pins_a>;
> @@ -120,6 +147,26 @@
>  	status = "okay";
>  };
>  
> +&dpi0 {
> +	status = "okay";
> +
> +	ports {
> +		port@0 {
> +			reg = <0>;
> +			dpi0_out: endpoint {
> +				remote-endpoint = <&hdmi0_in>;
> +			};
> +		};
> +
> +		port@1 {
> +			reg = <1>;
> +			dpi0_in: endpoint {
> +				remote-endpoint = <&bls_out>;
> +			};
> +		};
> +	};
> +};
> +
>  &eth {
>  	status = "okay";
>  
> @@ -202,6 +249,42 @@
>  	};
>  };
>  
> +&hdmi0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&hdmi_pins_a>;
> +	status = "okay";
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		port@0 {
> +			reg = <0>;
> +			hdmi0_in: endpoint {
> +				remote-endpoint = <&dpi0_out>;
> +			};
> +		};
> +
> +		port@1 {
> +			reg = <1>;
> +			hdmi0_out: endpoint {
> +				remote-endpoint = <&hdmi_connector_in>;
> +			};
> +		};
> +	};
> +};
> +
> +&hdmiddc0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&hdmi_ddc_pins_a>;
> +	status = "okay";
> +};
> +
> +&hdmi_phy {
> +	mediatek,ibias = <0xa>;
> +	mediatek,ibias_up = <0x1c>;
> +	status = "okay";
> +};
> +
>  &i2c0 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&i2c0_pins_a>;