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Message-ID: <CAGXv+5EmVQBNOL6GWaXu_i89WAUeUVtMBSbG8onGh3KHz5rnbA@mail.gmail.com>
Date: Thu, 14 Dec 2023 23:53:57 +0900
From: Chen-Yu Tsai <wenst@...omium.org>
To: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
Cc: Matthias Brugger <matthias.bgg@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
linux-mediatek@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Eugen Hristev <eugen.hristev@...labora.com>,
Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [PATCH v4 7/9] arm64: dts: mediatek: Introduce MT8186 Steelix
On Thu, Dec 14, 2023 at 7:34 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> Il 13/12/23 16:04, Chen-Yu Tsai ha scritto:
> > The MT8186 Steelix, also known as the Lenovo 300e Yoga Chromebook Gen 4,
> > is a convertible device based on a common design of the same name. The
> > device comes in different variants. Of them, whether a world facing
> > camera is integrated is the only differentiating factor between the
> > two device trees added. The different SKU IDs describe this alone.
> >
> > The other device difference is the touchpad component used. This is
> > simply handled by having both possible components described in the
> > device tree, and letting the implementation figure out which one is
> > actually available. The system bootloader / firmware does not
> > differentiate this in that they share the same SKU IDs.
> >
> > Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
> > Acked-by: Conor Dooley <conor.dooley@...rochip.com>
> > ---
> > Changes since v2:
> > - Picked up Conor's ack
> >
> > Changes since v1:
> > - Removed trackpad_pins reference (moved to i2c2 in corsola dtsi)
> > - Fixed copyright year
> > - Renamed touchpad to trackpad
> > ---
> > arch/arm64/boot/dts/mediatek/Makefile | 2 +
> > .../mt8186-corsola-steelix-sku131072.dts | 18 ++
> > .../mt8186-corsola-steelix-sku131073.dts | 18 ++
> > .../dts/mediatek/mt8186-corsola-steelix.dtsi | 195 ++++++++++++++++++
> > 4 files changed, 233 insertions(+)
> > create mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix-sku131072.dts
> > create mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix-sku131073.dts
> > create mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
> >
> > diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
> > index 442af61b1305..7bd9471b89f9 100644
> > --- a/arch/arm64/boot/dts/mediatek/Makefile
> > +++ b/arch/arm64/boot/dts/mediatek/Makefile
> > @@ -43,6 +43,8 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-kukui-kodama-sku32.dtb
> > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-kukui-krane-sku0.dtb
> > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-kukui-krane-sku176.dtb
> > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-pumpkin.dtb
> > +dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-steelix-sku131072.dtb
> > +dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-steelix-sku131073.dtb
> > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-tentacool-sku327681.dtb
> > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-tentacool-sku327683.dtb
> > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-tentacruel-sku262144.dtb
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix-sku131072.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix-sku131072.dts
> > new file mode 100644
> > index 000000000000..eae17bca8585
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix-sku131072.dts
> > @@ -0,0 +1,18 @@
> > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > +/*
> > + * Copyright 2022 Google LLC
> > + */
> > +
> > +/dts-v1/;
> > +#include "mt8186-corsola-steelix.dtsi"
> > +
> > +/ {
> > + model = "Google Steelix board";
> > + compatible = "google,steelix-sku131072", "google,steelix",
> > + "mediatek,mt8186";
> > + chassis-type = "convertible";
> > +};
> > +
> > +&mt6366codec {
> > + mediatek,dmic-mode = <0>; /* two-wire */
> > +};
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix-sku131073.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix-sku131073.dts
> > new file mode 100644
> > index 000000000000..a55375b95d0d
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix-sku131073.dts
> > @@ -0,0 +1,18 @@
> > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > +/*
> > + * Copyright 2022 Google LLC
> > + */
> > +
> > +/dts-v1/;
> > +#include "mt8186-corsola-steelix.dtsi"
> > +
> > +/ {
> > + model = "Google Steelix board";
> > + compatible = "google,steelix-sku131073", "google,steelix",
> > + "mediatek,mt8186";
> > + chassis-type = "convertible";
> > +};
> > +
> > +&mt6366codec {
> > + mediatek,dmic-mode = <1>; /* one-wire */
> > +};
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
> > new file mode 100644
> > index 000000000000..47262bc499ad
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
> > @@ -0,0 +1,195 @@
> > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > +/*
> > + * Copyright 2022 Google LLC
> > + */
> > +
> > +/dts-v1/;
> > +#include "mt8186-corsola.dtsi"
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/input/input.h>
> > +
> > +/{
> > + pp1000_edpbrdg: regulator-pp1000-edpbrdg {
> > + compatible = "regulator-fixed";
> > + regulator-name = "pp1000_edpbrdg";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&en_pp1000_edpbrdg>;
> > + enable-active-high;
> > + regulator-boot-on;
> > + gpio = <&pio 29 GPIO_ACTIVE_HIGH>;
> > + vin-supply = <&pp3300_z2>;
> > + };
> > +
> > + pp1800_edpbrdg_dx: regulator-pp1800-edpbrdg-dx {
> > + compatible = "regulator-fixed";
> > + regulator-name = "pp1800_edpbrdg_dx";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&en_pp1800_edpbrdg>;
> > + enable-active-high;
> > + regulator-boot-on;
> > + gpio = <&pio 30 GPIO_ACTIVE_HIGH>;
> > + vin-supply = <&mt6366_vio18_reg>;
> > + };
> > +
> > + pp3300_edp_dx: regulator-pp3300-edp-dx {
> > + compatible = "regulator-fixed";
> > + regulator-name = "pp3300_edp_dx";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&en_pp3300_edpbrdg>;
> > + enable-active-high;
> > + regulator-boot-on;
> > + gpio = <&pio 31 GPIO_ACTIVE_HIGH>;
> > + vin-supply = <&pp3300_z2>;
> > + };
> > +};
> > +
> > +&dsi_out {
> > + remote-endpoint = <&anx7625_in>;
> > +};
> > +
> > +&i2c0 {
> > + clock-frequency = <400000>;
> > +
> > + anx_bridge: anx7625@58 {
> > + compatible = "analogix,anx7625";
> > + reg = <0x58>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&anx7625_pins>;
> > + enable-gpios = <&pio 96 GPIO_ACTIVE_HIGH>;
> > + reset-gpios = <&pio 98 GPIO_ACTIVE_HIGH>;
BTW, do you think there is anything we can do about this backwards
active level setting?
> > + vdd10-supply = <&pp1000_edpbrdg>;
> > + vdd18-supply = <&pp1800_edpbrdg_dx>;
> > + vdd33-supply = <&pp3300_edp_dx>;
> > + analogix,lane0-swing = /bits/ 8 <0x70 0x30>;
> > + analogix,lane1-swing = /bits/ 8 <0x70 0x30>;
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > +
> > + anx7625_in: endpoint {
> > + remote-endpoint = <&dsi_out>;
> > + data-lanes = <0 1 2 3>;
> > + };
> > + };
> > +
> > + port@1 {
> > + reg = <1>;
> > +
> > + anx7625_out: endpoint {
> > + remote-endpoint = <&panel_in>;
> > + };
> > + };
> > + };
> > +
> > + aux-bus {
> > + panel: panel {
> > + compatible = "edp-panel";
> > + power-supply = <&pp3300_disp_x>;
> > + backlight = <&backlight_lcd0>;
> > +
> > + port {
> > + panel_in: endpoint {
> > + remote-endpoint = <&anx7625_out>;
> > + };
> > + };
> > + };
> > + };
> > + };
> > +};
> > +
> > +&i2c1 {
> > + touchscreen: touchscreen@5d {
> > + compatible = "goodix,gt7375p";
> > + reg = <0x5d>;
> > + interrupts-extended = <&pio 12 IRQ_TYPE_EDGE_FALLING>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&touchscreen_pins>;
> > + reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>;
> > + vdd-supply = <&pp3300_s3>;
> > + goodix,no-reset-during-suspend;
> > + };
> > +};
> > +
> > +&i2c2 {
> > + i2c-scl-internal-delay-ns = <22000>;
> > +
> > + /* second source component */
> > + trackpad@2c {
> > + compatible = "hid-over-i2c";
> > + reg = <0x2c>;
> > + hid-descr-addr = <0x20>;
> > + interrupts-extended = <&pio 11 IRQ_TYPE_LEVEL_LOW>;
> > + vdd-supply = <&pp3300_s3>;
> > + wakeup-source;
> > + };
> > +};
> > +
> > +&keyboard_controller {
> > + function-row-physmap = <
> > + MATRIX_KEY(0x00, 0x02, 0) /* T1 */
> > + MATRIX_KEY(0x03, 0x02, 0) /* T2 */
> > + MATRIX_KEY(0x02, 0x02, 0) /* T3 */
> > + MATRIX_KEY(0x01, 0x02, 0) /* T4 */
> > + MATRIX_KEY(0x03, 0x04, 0) /* T5 */
> > + MATRIX_KEY(0x02, 0x04, 0) /* T6 */
> > + MATRIX_KEY(0x01, 0x04, 0) /* T7 */
> > + MATRIX_KEY(0x02, 0x09, 0) /* T8 */
> > + MATRIX_KEY(0x01, 0x09, 0) /* T9 */
> > + MATRIX_KEY(0x00, 0x04, 0) /* T10 */
> > + >;
> > +
> > + linux,keymap = <
> > + MATRIX_KEY(0x00, 0x02, KEY_BACK)
> > + MATRIX_KEY(0x03, 0x02, KEY_REFRESH)
> > + MATRIX_KEY(0x02, 0x02, KEY_ZOOM)
> > + MATRIX_KEY(0x01, 0x02, KEY_SCALE)
> > + MATRIX_KEY(0x03, 0x04, KEY_BRIGHTNESSDOWN)
> > + MATRIX_KEY(0x02, 0x04, KEY_BRIGHTNESSUP)
> > + MATRIX_KEY(0x01, 0x04, KEY_MICMUTE)
> > + MATRIX_KEY(0x02, 0x09, KEY_MUTE)
> > + MATRIX_KEY(0x01, 0x09, KEY_VOLUMEDOWN)
> > + MATRIX_KEY(0x00, 0x04, KEY_VOLUMEUP)
> > + CROS_STD_MAIN_KEYMAP
> > + >;
> > +};
> > +
> > +&pio {
> > + anx7625_pins: anx7625-pins {
> > + pins1 {
>
> pins-en-rst
Ack. Also I think we can split them so they each get proper names.
> > + pinmux = <PINMUX_GPIO96__FUNC_GPIO96>,
> > + <PINMUX_GPIO98__FUNC_GPIO98>;
> > + output-low;
> > + };
> > +
> > + pins2 {
>
> pins-is-this-an-interrupt? :-)
Yes. Will use pins-int.
> > + pinmux = <PINMUX_GPIO9__FUNC_GPIO9>;
> > + input-enable;
> > + bias-disable;
> > + };
> > + };
> > +
> > + en_pp1000_edpbrdg: pp1000-edpbrdg-en-pins {
> > + pins {
>
> pins-vreg-en like in corsola.dtsi
Ack.
> > + pinmux = <PINMUX_GPIO29__FUNC_GPIO29>;
> > + output-low;
> > + };
> > + };
> > +
> > + en_pp1800_edpbrdg: pp1800-edpbrdg-en-pins {
> > + pins {
>
> same
Ack.
> > + pinmux = <PINMUX_GPIO30__FUNC_GPIO30>;
> > + output-low;
> > + };
> > + };
> > +
> > + en_pp3300_edpbrdg: pp3300-edpbrdg-en-pins {
> > + pins {
Ack.
ChenYu
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