> -----Ursprüngliche Nachricht-----
> Von: Shawn Guo Gesendet: Montag, 23. April 2018 10:45
> Re: [PATCH v3 5/6] ARM: dts: Add support for emtrion emCON-MX6 series
>
> On Fri, Apr 20, 2018 at 02:50:52PM +0200, jan.tuerk@xxxxxxxxxxx wrote:
> > From: Jan Tuerk <jan.tuerk@xxxxxxxxxxx>
> >
> > This patch adds support for the emtrion GmbH emCON-MX6 modules.
> > They are available with imx.6 Solo, Dual-Lite, Dual and Quad equipped
> > with Memory from 512MB to 2GB (configured by U-Boot).
> >
> > Our default developer-Kit ships with the Avari baseboard and the EDT
> > ETM0700G0BDH6 Display (imx6[q|dl]-emcon-avari).
> >
> > The devicetree is split into the common part providing all module
> > components and the basic support for all SoC versions
> > (imx6qdl-emcon.dtsi) and parts which are i.mx6 S|DL and D|Q relevant.
> > Finally the support for the avari baseboard in the developer-kit
> > configuration is provided by the emcon-avari dts files.
> >
> > Signed-off-by: Jan Tuerk <jan.tuerk@xxxxxxxxxxx>
> > ---
> > Documentation/devicetree/bindings/arm/emtrion.txt | 13 +
>
> It's better to have a separate patch for bindings doc, which needs to be
> acknowledged by DT maintainers.
I can change that, but nobody complained in the first 2 revisions of the patch.
Also I though having the documentation is required for merging new bindings?
>
> > arch/arm/boot/dts/Makefile | 2 +
> > arch/arm/boot/dts/imx6dl-emcon-avari.dts | 224 ++++++
> > arch/arm/boot/dts/imx6dl-emcon.dtsi | 27 +
> > arch/arm/boot/dts/imx6q-emcon-avari.dts | 224 ++++++
> > arch/arm/boot/dts/imx6q-emcon.dtsi | 27 +
> > arch/arm/boot/dts/imx6qdl-emcon.dtsi | 838
> ++++++++++++++++++++++
> > 7 files changed, 1355 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/arm/emtrion.txt
> > create mode 100644 arch/arm/boot/dts/imx6dl-emcon-avari.dts
> > create mode 100644 arch/arm/boot/dts/imx6dl-emcon.dtsi
> > create mode 100644 arch/arm/boot/dts/imx6q-emcon-avari.dts
> > create mode 100644 arch/arm/boot/dts/imx6q-emcon.dtsi
> > create mode 100644 arch/arm/boot/dts/imx6qdl-emcon.dtsi
> >
> > diff --git a/Documentation/devicetree/bindings/arm/emtrion.txt
> > b/Documentation/devicetree/bindings/arm/emtrion.txt
> > new file mode 100644
> > index 000000000000..3ff6c6c2034d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/arm/emtrion.txt
> > @@ -0,0 +1,13 @@
> > +Emtrion Devicetree Bindings
> > +===========================
> > +
> > +emCON Series:
[..]
> > index 000000000000..2344fb9498e3
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/imx6dl-emcon-avari.dts
> > @@ -0,0 +1,224 @@
> > +// SPDX-License-Identifier: (GPL-2.0 or MIT)
> > +/* Copyright (C) 2018 emtrion GmbH
> > + * Author: Jan Tuerk <jan.tuerk@xxxxxxxxxxx> */
>
> /*
> * Copyright ...
> */
Ack
> > +
> > +/dts-v1/;
> > +#include "imx6dl.dtsi"
> > +#include "imx6qdl-emcon.dtsi"
> > +#include "imx6dl-emcon.dtsi" /*Include camera2 pinmux*/
>
> /* bla bla */
>
> > +
> > +/ {
> > + model = "emtrion SoM emCON-MX6 Solo/Dual-Lite Avari";
> > + compatible = "emtrion,emcon-mx6-avari", "fsl,imx6dl";
> > +
> > + aliases {
> > + mmc0 = &usdhc3;
> > + mmc2 = &usdhc1;
> > + mmc1 = &usdhc2;
> > + mmc3 = &usdhc4;
> > + };
> > +
> > + chosen {
> > + stdout-path = <&uart1>;
> > + };
> > +
> > + memory {
>
> The unit-address is missing.
Ack
>
> > + reg = <0x10000000 0x40000000>;
> > + };
> > +
> > + supplies {
> > + compatible = "simple-bus";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
>
> DT maintainers do not like this fake container node. Please put the
> fixed regulator nodes directly under root with a unique name like below.
Ok I'll change this
>
> reg_xxx: regulator-xxx {
> ...
> };
>
> > +
> > + wallplug5p0: supply@0 {
> > + compatible = "regulator-fixed";
> > + reg = <0>;
> > + regulator-name = "WALL-PLUG";
> > + regulator-min-microvolt = <5000000>;
> > + regulator-max-microvolt = <5000000>;
> > + regulator-always-on;
> > + regulator-boot-on;
> > + };
[...]
> > + reg_usb_otg: otgvbus@3 {
> > + compatible = "regulator-fixed";
> > + reg = <3>;
> > + vin-supply = <&wallplug5p0>;
> > + regulator-name = "OTG_VBUS";
> > + regulator-min-microvolt = <5000000>;
> > + regulator-max-microvolt = <5000000>;
> > + gpio = <&gpio1 8 GPIO_ACTIVE_LOW>;
> > + regulator-always-on;
> > + };
> > +
> > + };
> > +
> > +
> > + sndosc: 12MHZosc {
>
> clock-xxx {
> ...
> };
ok
>
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <12000000>;
> > + };
> > +
> > + sound {
> > + compatible = "fsl,imx-audio-sgtl5000";
> > + model = "emCON-avari-sgtl5000";
> > + ssi-controller = <&ssi2>;
> > + audio-codec = <&sgtl5000>;
> > + audio-routing =
> > + "Headphone Jack", "HP_OUT";
> > + mux-int-port = <2>;
> > + mux-ext-port = <3>;
> > + };
> > +
> > +};
> > +
> > +
>
> One newline is good enough.
ack
>
> > +&iomuxc {
> > + pinctrl-names = "default";
> > + /*Unused emCON-MX6 outputs on AVARI*/
> > + pinctrl-0 = <
> > + &pinctrl_emcon_gpio1
> &pinctrl_emcon_gpio2
> > + &pinctrl_emcon_gpio3
> &pinctrl_emcon_gpio5
> > + &pinctrl_emcon_gpio6
> &pinctrl_emcon_gpio7
> > + &pinctrl_emcon_gpio8
> &pinctrl_emcon_irq_a
> > + &pinctrl_emcon_irq_b &pinctrl_emcon_irq_c
> > + &pinctrl_emcon_irq_pwr &pinctrl_nor_flash
> > + &pinctrl_usdhc2
> > + &pinctrl_spdif_out &pinctrl_spdif_in
> > + &pinctrl_cpi1 &pinctrl_cpi2
> > + >;
>
> Only pins without clear consumer should be put into hog group. Also the
> indent seems broken.
Yes the consumer is currently "not-defined" on the Avari baseboard, as those pins are signals on the emCON Interface.
I've added them there to force a basic initialization matching the Interfaces specified function blocks in the SoC.
I'll rework the indent as well.
>
> > +};
> > +
> > +&audmux {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_audmux>;
> > + status = "okay";
> > +};
> > +
> > +
> > +
>
> One newline is good enough. Also, please try to sort these labelled
> nodes alphabetically.
>
> > +&i2c3 {
> > + clock-frequency = <100000>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_i2c3>;
> > + status = "okay";
> > +
> > + sgtl5000: audio-codec@a {
> > + compatible = "fsl,sgtl5000";
> > + reg = <0x0a>;
> > + clocks = <&sndosc>;
> > + VDDA-supply = <&base3p3>;
> > + VDDIO-supply = <&base3p3>;
>
> #sound-dai-cells is missing.
yes, I'll change that
>
> > + };
> > +
> > + boardID: pca8754a@3a {
>
> Please find a more generic node name for it.
you mean boardID@3a?
This chip identifies the baseboard type for the bootloader.
>
> > + compatible = "nxp,pca8574";
> > + reg = <0x3a>;
> > + gpio-controller;
> > + #gpio-cells = <1>;
> > + };
> > +
> > + captouch: touchscreen@38 {
> > + compatible = "edt,edt-ft5406";
> > + reg = <0x38>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_irq_touch2 &pinctrl_emcon_gpio4>;
> > + interrupt-parent = <&gpio6>;
> > + interrupts = <31 IRQ_TYPE_EDGE_FALLING>;
> > + wake-gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
> > + wakeup-source;
> > + status = "okay";
>
> The "okay" status is only needed to flip the default "disabled" device.
>
> > + };
[...]
> +};
> diff --git a/arch/arm/boot/dts/imx6q-emcon-avari.dts b/arch/arm/boot/dts/imx6q-emcon-avari.dts
> new file mode 100644
> index 000000000000..0c85b5ee011c
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6q-emcon-avari.dts
There are so many things duplicated between imx6dl-emcon-avari.dts and
imx6q-emcon-avari.dts. Can you do something to avoid that?
I could try to merge them into a "common", but it will be an additional file.
> @@ -0,0 +1,224 @@
> +// SPDX-License-Identifier: (GPL-2.0 or MIT)
> +/* Copyright (C) 2018 emtrion GmbH
> + * Author: Jan Tuerk <jan.tuerk@xxxxxxxxxxx>
> + */
> +
> +/dts-v1/;
> +#include "imx6q.dtsi"
> +#include "imx6qdl-emcon.dtsi"
> +#include "imx6q-emcon.dtsi" /*Include camera2 pinmux*/
> +
> +/ {
> + model = "emtrion SoM emCON-MX6 Dual/Quad on Avari";
> + compatible = "emtrion,emcon-mx6-avari", "fsl,imx6q";
> +
> + aliases {
> + mmc0 = &usdhc3;
> + mmc2 = &usdhc1;
> + mmc1 = &usdhc2;
> + mmc3 = &usdhc4;
> + };
[...]
> > +};
> > +
> > +&ssi2 {
> > + pwm_fan: pwm-fan {
> > + compatible = "pwm-fan";
> > + cooling-min-state = <0>;
> > + cooling-max-state = <4>;
> > + #cooling-cells = <2>;
> > + pwms = <&pwm4 0 50000>;
> > + cooling-levels = <0 64 127 191 255>;
> > + status = "disabled";
> > + };
> > +
> > + rgb_encoder: disp0 {
>
> s/disp0/display
Ack
>
> > + compatible = "fsl,imx-parallel-display";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_rgb24_display>;
> > + status = "disabled";
> > +
> > + port@0 {
> > + reg = <0>;
>
> Have a newline between property list and child node.
Ok
>
> > + rgb_encoder_in: endpoint {
> > + remote-endpoint = <&ipu1_di0_disp0>;
> > + };
> > + };
> > +
> > + port@1 {
> > + reg = <1>;
> > + rgb_encoder_out: endpoint {
> > + remote-endpoint = <&rgb_panel_in>;
> > + };
> > + };
> > + };
> > +
> > + rgb_panel: panel {
> > + backlight = <&rgb_backlight>;
> > + power-supply = <®_parallel_disp>;
> > + port {
> > + rgb_panel_in: endpoint {
> > + remote-endpoint = <&rgb_encoder_out>;
> > + };
> > + };
> > + };
> > +
> > + rgb_backlight: rgb-backlight {
> > + compatible = "pwm-backlight";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_rgb_bl>;
> > + enable-gpios = <&gpio6 8 GPIO_ACTIVE_HIGH>;
> > + pwms = <&pwm3 0 5000000>;
> > + brightness-levels = <250 176 160 144 128 112
> > + 96 80 64 48 32 16 8 1
> > + >;
>
> Broken indent.
ack
>
> > + default-brightness-level = <13>;
> > + status = "okay";
> > + };
> > +
> > + lvds_backlight: lvds-backlight {
> > + compatible = "pwm-backlight";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_lvds_bl>;
> > + enable-gpios = <&gpio6 9 GPIO_ACTIVE_HIGH>;
> > + pwms = <&pwm1 0 50000>;
> > + brightness-levels = <0 4 8 16 32 64 80 96 112
> > + 128 144 160 176 250
> > + >;
> > + default-brightness-level = <13>;
> > + status = "okay";
> > + };
> > +};
> > +
> > +
> > +&iomuxc {
> > +
> > + pinctrl_secure: securegrp {
>
> Unused?
in this configuration, yes.
The imx6qdl-emcon.dtsi defines all pinctrl values for the Interfaces defined in the emCON specification.
>
> > + fsl,pins = <
> > + MX6QDL_PAD_GPIO_18__GPIO7_IO13
> 0x1b0b1
> > + >;
> > + };
> > +
> > + pinctrl_uart1: uart1grp {
> > + fsl,pins = <
> > + MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA
> 0x1b0b1
> > + MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA
> 0x1b0b1
> > + >;
> > + };
> > +
[...]
> > +
> > + pinctrl_uart5: uart5grp {
> > + fsl,pins = <
> > + MX6QDL_PAD_KEY_COL1__UART5_TX_DATA
> 0x1b0b1
> > + MX6QDL_PAD_KEY_ROW1__UART5_RX_DATA
> 0x1b0b1
> > + >;
> > + };
> > +
> > + pinctrl_emcon_gpio1: emcongpio1 {
> > + fsl,pins = <
> > + MX6QDL_PAD_NANDF_D0__GPIO2_IO00
> 0x0b0b1
> > + >;
> > + };
>
> Try to keep these pinctrl entries alphabetically sorted.
If this helps to merge it, I'll change that
>
> > +
> > + pinctrl_emcon_gpio2: emcongpio2 {
> > + fsl,pins = <
> > + MX6QDL_PAD_NANDF_D1__GPIO2_IO01
> 0x0b0b1
> > + >;
> > + };
> > +
[...]
> > +
> > + wdt {
>
> s/wdt/watchdog
Ack.
>
> > + compatible = "dlg,da9063-watchdog";
> > + timeout-sec = <0>;
> > + };
> > +
> > + regulators {
> > + vddcore_reg: bcore1 {
> > + regulator-min-microvolt = <1100000>;
> > +
[...]
> > +/*******Disabled HW following***********/
> > +
> > +
> > +&weim {
> > + status = "disabled";
> > +};
>
> Isn't weim disabled by default?
Yes, the patch was originally done for our internal "vendor" kernel, which was based on 4.9 where it was enabled by default.
I remove the node, as it became obsolete now.
>
> Shawn
>
> > +
> > +&snvs_rtc {
> > + status = "disabled";
> > +};
> > --
> > 2.11.0
> >
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