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Date: Fri, 28 Dec 2018 17:25:56 -0600
From: Rob Herring <robh@...nel.org>
To: Vokáč Michal <Michal.Vokac@...ft.com>
Cc: Shawn Guo <shawnguo@...nel.org>,
Fabio Estevam <fabio.estevam@....com>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH v2] ARM: dts: imx: Add Y Soft IOTA Draco, Hydra and Ursa
boards
On Tue, Dec 18, 2018 at 02:42:11PM +0000, Vokáč Michal wrote:
> These are i.MX6S/DL based SBCs embedded in various Y Soft products.
> All share the same board design but have slightly different HW
> configuration.
>
> Ursa
> - i.MX6S SoC, 512MB RAM DDR3, 4GB eMMC, microSD
> - parallel WVGA 7" LCD with touch panel
> - 1x Eth (QCA8334 switch)
> - USB OTG
> - USB host (micro-B)
>
> Draco
> - i.MX6S SoC, 512MB RAM DDR3, 4GB eMMC, microSD
> - parallel WVGA 7" LCD with touch panel
> - 2x Eth (QCA8334 switch)
> - USB OTG
> - USB host (micro-B)
> - RGB LED (I2C LP5562)
> - 3.5mm audio jack + codec (LM49350)
>
> Hydra
> - i.MX6DL SoC, 2GB RAM DDR3, 4GB eMMC, microSD
> - I2C OLED display, capacitive matrix keys
> - 2x Eth (QCA8334 switch)
> - USB OTG
> - RGB LED (I2C LP5562)
> - 3.5mm audio jack + codec (LM49350)
> - HDMI
> - miniPCIe slot
>
> Cc: Andrew Lunn <andrew@...n.ch>
> Signed-off-by: Michal Vokáč <michal.vokac@...ft.com>
> ---
> Changes since v1:
> - Enable HDMI on Hydra board.
> - Move regulators to the root node and remove simple-bus property. (Rob)
> - Remove reg and unit-address property from regulators. (Rob)
> - Use correct names for led-controller and pmic node. (Rob)
> - Use wakeup-source instead of deprecated enable-sdio-wakeup. (Shawn)
>
> Link to v1: http://patchwork.ozlabs.org/patch/991975/
>
> No change regarding the documentation and split of the dtsi files as
> I did not get answers to my questions and was not sure how to proceed.
> Andrew pointed me to the Kirkwood Synology platform. That boards use
> the same concept to organize the "disabled" and "okay" nodes.
>
> Thanks,
> Michal
>
> arch/arm/boot/dts/Makefile | 3 +
> arch/arm/boot/dts/imx6dl-yapp4-common.dtsi | 595 +++++++++++++++++++++++++++++
> arch/arm/boot/dts/imx6dl-yapp4-draco.dts | 61 +++
> arch/arm/boot/dts/imx6dl-yapp4-hydra.dts | 49 +++
> arch/arm/boot/dts/imx6dl-yapp4-ursa.dts | 57 +++
> 5 files changed, 765 insertions(+)
> create mode 100644 arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
> create mode 100644 arch/arm/boot/dts/imx6dl-yapp4-draco.dts
> create mode 100644 arch/arm/boot/dts/imx6dl-yapp4-hydra.dts
> create mode 100644 arch/arm/boot/dts/imx6dl-yapp4-ursa.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index b0e966d..9bdf394 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -443,6 +443,9 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
> imx6dl-wandboard.dtb \
> imx6dl-wandboard-revb1.dtb \
> imx6dl-wandboard-revd1.dtb \
> + imx6dl-yapp4-draco.dtb \
> + imx6dl-yapp4-hydra.dtb \
> + imx6dl-yapp4-ursa.dtb \
> imx6q-apalis-eval.dtb \
> imx6q-apalis-ixora.dtb \
> imx6q-apalis-ixora-v1.1.dtb \
> diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
> new file mode 100644
> index 0000000..7eb6427
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
> @@ -0,0 +1,595 @@
> +// SPDX-License-Identifier: GPL-2.0
> +//
> +// Copyright (C) 2015-2018 Y Soft Corporation, a.s.
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/pwm/pwm.h>
> +
> +/ {
> + backlight: backlight {
> + compatible = "pwm-backlight";
> + pwms = <&pwm1 0 500000 PWM_POLARITY_INVERTED>;
> + brightness-levels = <0 32 64 128 255>;
> + default-brightness-level = <32>;
> + num-interpolated-steps = <8>;
> + power-supply = <&sw2_reg>;
> + status = "disabled";
> + };
> +
> + lcd_display: display {
> + compatible = "fsl,imx-parallel-display";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + interface-pix-fmt = "rgb24";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_ipu1>;
> + status = "disabled";
> +
> + port@0 {
> + reg = <0>;
> +
> + lcd_display_in: endpoint {
> + remote-endpoint = <&ipu1_di0_disp0>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + lcd_display_out: endpoint {
> + remote-endpoint = <&lcd_panel_in>;
> + };
> + };
> + };
> +
> + panel: panel {
> + compatible = "dataimage,scf0700c48ggu18";
> + power-supply = <&sw2_reg>;
> + status = "disabled";
> +
> + port {
> + lcd_panel_in: endpoint {
> + remote-endpoint = <&lcd_display_out>;
> + };
> + };
> + };
> +
> + reg_usb_h1_vbus: reg_usb_h1_vbus {
Use '-' rather than '_' in node names.
> + compatible = "regulator-fixed";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usbh1_vbus>;
> + regulator-name = "usb_h1_vbus";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + gpio = <&gpio1 29 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + status = "disabled";
> + };
> +
> + reg_usb_otg_vbus: reg_usb_otg_vbus {
> + compatible = "regulator-fixed";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usbotg_vbus>;
> + regulator-name = "usb_otg_vbus";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + status = "okay";
> + };
> +
> + reg_pcie: reg_pcie {
> + compatible = "regulator-fixed";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_pcie_reg>;
> + regulator-name = "MPCIE_3V3";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + gpio = <&gpio3 19 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + status = "disabled";
> + };
> +};
> +
> +&fec {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_enet>;
> + phy-mode = "rgmii-id";
> + phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
> + phy-reset-duration = <20>;
> + phy-supply = <&sw2_reg>;
> + phy-handle = <ðphy0>;
> + status = "okay";
> +
> + mdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + phy_port2: phy@1 {
> + reg = <1>;
> + };
> +
> + phy_port3: phy@2 {
> + reg = <2>;
> + };
> +
> + switch@0 {
> + compatible = "qca,qca8334";
> + reg = <0>;
> +
> + switch_ports: ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethphy0: port@0 {
> + reg = <0>;
> + label = "cpu";
> + phy-mode = "rgmii";
> + ethernet = <&fec>;
> + fixed-link {
> + speed = <1000>;
> + full-duplex;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> + label = "eth2";
> + phy-handle = <&phy_port2>;
> + };
> +
> + port@3 {
> + reg = <3>;
> + label = "eth1";
> + phy-handle = <&phy_port3>;
> + };
> + };
> + };
> + };
> +};
> +
> +&hdmi {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_hdmi_cec>;
> + ddc-i2c-bus = <&i2c2>;
> + status = "disabled";
> +};
> +
> +&i2c2 {
> + clock-frequency = <100000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c2>;
> + status = "okay";
> +
> + eeprom@57 {
> + compatible = "atmel,24c128";
> + reg = <0x57>;
> + pagesize = <64>;
> + status = "okay";
> + };
> +
> + leds: led-controller@30 {
> + compatible = "ti,lp5562";
> + label = "lp5562_leds";
label should be for a specific led. The use here doesn't seem that
useful.
> + reg = <0x30>;
> + clock-mode = /bits/ 8 <1>;
> + status = "disabled";
> +
> + chan0 {
> + chan-name = "R";
> + led-cur = /bits/ 8 <0x20>;
> + max-cur = /bits/ 8 <0x60>;
> + };
> +
> + chan1 {
> + chan-name = "G";
> + led-cur = /bits/ 8 <0x20>;
> + max-cur = /bits/ 8 <0x60>;
> + };
> +
> + chan2 {
> + chan-name = "B";
> + led-cur = /bits/ 8 <0x20>;
> + max-cur = /bits/ 8 <0x60>;
> + };
> +
> + chan3 {
> + chan-name = "W";
> + led-cur = /bits/ 8 <0x0>;
> + max-cur = /bits/ 8 <0x0>;
> + };
> + };
> +
> + pmic@8 {
> + compatible = "fsl,pfuze200";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_pmic>;
> + reg = <0x8>;
> +
> + regulators {
> + sw1a_reg: sw1ab {
> + regulator-min-microvolt = <300000>;
> + regulator-max-microvolt = <1875000>;
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-ramp-delay = <6250>;
> + };
> +
> + sw2_reg: sw2 {
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + sw3a_reg: sw3a {
> + regulator-min-microvolt = <400000>;
> + regulator-max-microvolt = <1975000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + sw3b_reg: sw3b {
> + regulator-min-microvolt = <400000>;
> + regulator-max-microvolt = <1975000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + swbst_reg: swbst {
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5150000>;
> + };
> +
> + snvs_reg: vsnvs {
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + vref_reg: vrefddr {
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + vgen1_reg: vgen1 {
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <1550000>;
> + };
> +
> + vgen2_reg: vgen2 {
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <1550000>;
> + };
> +
> + vgen3_reg: vgen3 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> +
> + vgen4_reg: vgen4 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> +
> + vgen5_reg: vgen5 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> +
> + vgen6_reg: vgen6 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> + };
> + };
> +
> + touchscreen: touchscreen@5c {
> + compatible = "pixcir,pixcir_tangoc";
> + reg = <0x5c>;
> + pinctrl-0 = <&pinctrl_touch>;
> + interrupt-parent = <&gpio4>;
> + interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
> + attb-gpio = <&gpio4 5 GPIO_ACTIVE_HIGH>;
> + reset-gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
> + touchscreen-size-x = <800>;
> + touchscreen-size-y = <480>;
> + status = "disabled";
> + };
> +};
> +
> +&i2c3 {
> + clock-frequency = <100000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c3>;
> + status = "disabled";
> +
> + gpio_oled: gpio@41 {
> + compatible = "nxp,pca9536";
> + gpio-controller;
> + #gpio-cells = <2>;
> + reg = <0x41>;
> + vcc-supply = <&sw2_reg>;
> + status = "disabled";
> + };
> +
> + oled: oled@3d {
> + compatible = "solomon,ssd1305fb-i2c";
Not documented.
> + reg = <0x3d>;
> + solomon,height = <64>;
> + solomon,width = <128>;
> + solomon,page-offset = <0>;
> + solomon,prechargep2 = <15>;
> + reset-gpios = <&gpio_oled 1 GPIO_ACTIVE_LOW>;
> + vbat-supply = <&sw2_reg>;
> + status = "disabled";
> + };
[...]
> diff --git a/arch/arm/boot/dts/imx6dl-yapp4-draco.dts b/arch/arm/boot/dts/imx6dl-yapp4-draco.dts
> new file mode 100644
> index 0000000..2b9a7ad
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6dl-yapp4-draco.dts
> @@ -0,0 +1,61 @@
> +// SPDX-License-Identifier: GPL-2.0
> +//
> +// Copyright (C) 2015-2018 Y Soft Corporation, a.s.
> +
> +/dts-v1/;
> +
> +#include "imx6dl.dtsi"
> +#include "imx6dl-yapp4-common.dtsi"
> +
> +/ {
> + model = "Y Soft IOTA Draco i.MX6Solo board";
> + compatible = "ysoft,imx6dl-yapp4-draco", "fsl,imx6dl";
All compatible strings should be documented, not just SoC vendor boards.
> +
> + cpus {
> + /delete-node/ cpu@1;
Seems like this is a chip property, not a board specific property. IOW,
you need an imx6solo.dtsi file.
> + };
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