[PATCH v3 0/6] arm64: mediatek: mt8186-corsola: Consolidate and add new devices

[PATCH v3 0/6] arm64: mediatek: mt8186-corsola: Consolidate and add new devices

[Chen-Yu Tsai]

Hi everyone,

This is v3 of my "component probe for Corsola devices" series.

Changes since v2:
- Rebased onto next-20250616
- Collected reviewed-by tags
- Dropped driver changes that are already in v6.16-rc1

Changes since v1:
- Reworded commit message for Elan I2C-HID binding change
- Dropped I2C address constraint from Elan I2C-HID binding completely
- Dropped enum from new compatible string entry in Elan I2C-HID binding
- Picked up Rob's ack on two binding changes
- Rebased onto next-20250417, resolving conflicts with "spherion
  component prober" changes
- Link to v1:
  https://lore.kernel.org/all/20250312104344.3084425-1-wenst@chromium.org/

Here's a follow up series of the I2C component probers for Chromebooks.
This series enables the component prober for the Corsola series of
devices, combines the two existing Voltorb SKUs, and adds a new
device, codename Squirtle.

Patch 1 adds a new entry for the Squirtle device to the bindings.

Patch 2 fixes up the existing device trees for the component prober to
be active.

Patch 3 merges the device trees for the Voltorb device.

Patch 4 adds a device tree file for the Squirtle device, with I2C
components ready to be probed by the prober.

Patch 5 enables the prober to probe trackpads on some devices in the
Corsola family.

Patch 6 enables the prober to probe touchscreens on Squirtle.


Everything has been reviewed. Dmitry, please give an Ack so we can merge
everything through the soc tree.


Thanks
ChenYu

Chen-Yu Tsai (6):
  dt-bindings: HID: i2c-hid: elan: Introduce Elan eKTH8D18
  dt-bindings: arm: mediatek: Merge MT8186 Voltorb entries
  dt-bindings: arm: mediatek: Add MT8186 Squirtle Chromebooks
  arm64: dts: mediatek: mt8186-steelix: Mark second source components
    for probing
  arm64: dts: mediatek: mt8186: Merge Voltorb device trees
  arm64: dts: mediatek: mt8186: Add Squirtle Chromebooks

 .../devicetree/bindings/arm/mediatek.yaml     |   7 +-
 .../bindings/input/elan,ekth6915.yaml         |  12 +-
 arch/arm64/boot/dts/mediatek/Makefile         |   4 +-
 .../dts/mediatek/mt8186-corsola-squirtle.dts  | 107 ++++++++++++++++++
 .../dts/mediatek/mt8186-corsola-steelix.dtsi  |   9 +-
 .../mt8186-corsola-tentacool-sku327683.dts    |   2 +
 .../mt8186-corsola-tentacruel-sku262148.dts   |   2 +
 .../mt8186-corsola-voltorb-sku589824.dts      |  13 ---
 ...u589825.dts => mt8186-corsola-voltorb.dts} |   5 +-
 .../boot/dts/mediatek/mt8186-corsola.dtsi     |  10 +-
 10 files changed, 138 insertions(+), 33 deletions(-)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-squirtle.dts
 delete mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589824.dts
 rename arch/arm64/boot/dts/mediatek/{mt8186-corsola-voltorb-sku589825.dts => mt8186-corsola-voltorb.dts} (76%)

-- 
2.50.0.rc2.692.g299adb8693-goog

[PATCH v3 1/6] dt-bindings: HID: i2c-hid: elan: Introduce Elan eKTH8D18

[Chen-Yu Tsai]

The Elan eKTH8D18 touchscreen controller is an I2C HID device with a
longer boot-up time. Power sequence timing wise it is compatible with
the eKTH6A12NAY, with a power-on delay of at least 5ms, 20ms
out-of-reset for I2C ack response, and 150ms out-of-reset for I2C HID
enumeration, both shorter than what the eKTH6A12NAY requires.
Enumeration and subsequent operation follows the I2C HID standard.

Add a compatible string for it with the ekth6a12nay one as a fallback.
No enum was used as it is rare to actually add new entries. These
chips are commonly completely backward compatible, and unless the
power sequencing delays change, there is no real effort being made to
keep track of new parts, which come out constantly.

Also drop the constraints on the I2C address since it's not really
part of the binding.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
Changes since v1:
- Reworded commit message
- Dropped the enum for the new compatible string entry
- Dropped constraint on I2C address completely
---
 .../devicetree/bindings/input/elan,ekth6915.yaml     | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/elan,ekth6915.yaml b/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
index cb3e1801b0d3..0840e4ab28b7 100644
--- a/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
+++ b/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
@@ -4,14 +4,14 @@
 $id: http://devicetree.org/schemas/input/elan,ekth6915.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Elan eKTH6915 touchscreen controller
+title: Elan I2C-HID touchscreen controllers
 
 maintainers:
   - Douglas Anderson <dianders@chromium.org>
 
 description:
-  Supports the Elan eKTH6915 touchscreen controller.
-  This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
+  Supports the Elan eKTH6915 and other I2C-HID touchscreen controllers.
+  These touchscreen controller use the i2c-hid protocol with a reset GPIO.
 
 allOf:
   - $ref: /schemas/input/touchscreen/touchscreen.yaml#
@@ -23,12 +23,14 @@ properties:
           - enum:
               - elan,ekth5015m
           - const: elan,ekth6915
+      - items:
+          - const: elan,ekth8d18
+          - const: elan,ekth6a12nay
       - enum:
           - elan,ekth6915
           - elan,ekth6a12nay
 
-  reg:
-    const: 0x10
+  reg: true
 
   interrupts:
     maxItems: 1
-- 
2.50.0.rc2.692.g299adb8693-goog

Re: [PATCH v3 1/6] dt-bindings: HID: i2c-hid: elan: Introduce Elan eKTH8D18

[Dmitry Torokhov]

On Tue, Jun 17, 2025 at 04:19:58PM +0800, Chen-Yu Tsai wrote:
> The Elan eKTH8D18 touchscreen controller is an I2C HID device with a
> longer boot-up time. Power sequence timing wise it is compatible with
> the eKTH6A12NAY, with a power-on delay of at least 5ms, 20ms
> out-of-reset for I2C ack response, and 150ms out-of-reset for I2C HID
> enumeration, both shorter than what the eKTH6A12NAY requires.
> Enumeration and subsequent operation follows the I2C HID standard.
> 
> Add a compatible string for it with the ekth6a12nay one as a fallback.
> No enum was used as it is rare to actually add new entries. These
> chips are commonly completely backward compatible, and unless the
> power sequencing delays change, there is no real effort being made to
> keep track of new parts, which come out constantly.
> 
> Also drop the constraints on the I2C address since it's not really
> part of the binding.
> 
> Reviewed-by: Douglas Anderson <dianders@chromium.org>
> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>

Applied, thank you.

-- 
Dmitry

[PATCH v3 2/6] dt-bindings: arm: mediatek: Merge MT8186 Voltorb entries

[Chen-Yu Tsai]

There are only two different SKUs of Voltorb, and the only difference
between them is whether a touchscreen is present or not. This can be
detected by a simple I2C transfer to the address, instead of having
separate compatible strings and device trees.

Drop the SKU-specific compatible strings and just keep the generic
"google,voltorb" one.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
Changes since v1:
- Added Rob's ack
---
 Documentation/devicetree/bindings/arm/mediatek.yaml | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index a7e0a72f6e4c..2032b0b64ba7 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -350,9 +350,6 @@ properties:
           - const: mediatek,mt8186
       - description: Google Voltorb (Acer Chromebook 311 C723/C732T)
         items:
-          - enum:
-              - google,voltorb-sku589824
-              - google,voltorb-sku589825
           - const: google,voltorb
           - const: mediatek,mt8186
       - items:
-- 
2.50.0.rc2.692.g299adb8693-goog

[PATCH v3 3/6] dt-bindings: arm: mediatek: Add MT8186 Squirtle Chromebooks

[Chen-Yu Tsai]

Add an entry for the MT8186 based Squirtle Chromebooks, also known as the
Acer Chromebook Spin 311 (R724T). The device is a 2-in-1 convertible.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
Changes since v1:
- Added Rob's ack
---
 Documentation/devicetree/bindings/arm/mediatek.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index 2032b0b64ba7..a4d9c72d10c4 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -302,6 +302,10 @@ properties:
           - const: google,steelix-sku196608
           - const: google,steelix
           - const: mediatek,mt8186
+      - description: Google Squirtle (Acer Chromebook Spin 311 (R724T)
+        items:
+          - const: google,squirtle
+          - const: mediatek,mt8186
       - description: Google Starmie (ASUS Chromebook Enterprise CM30 (CM3001))
         items:
           - const: google,starmie-sku0
-- 
2.50.0.rc2.692.g299adb8693-goog

[PATCH v3 4/6] arm64: dts: mediatek: mt8186-steelix: Mark second source components for probing

[Chen-Yu Tsai]

Steelix design has two possible trackpad component sources. Currently
they are all marked as available, along with having workarounds for
shared pinctrl muxing and GPIOs.

Instead, mark them all as "fail-needs-probe" and have the implementation
try to probe which one is present.

Also remove the shared resource workaround by moving the pinctrl entry
for the trackpad interrupt line back into the individual trackpad nodes.

Cc: stable+noautosel@kernel.org # Needs accompanying new driver to work
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
 .../boot/dts/mediatek/mt8186-corsola-steelix.dtsi      |  7 +++++++
 .../mediatek/mt8186-corsola-tentacool-sku327683.dts    |  2 ++
 .../mediatek/mt8186-corsola-tentacruel-sku262148.dts   |  2 ++
 arch/arm64/boot/dts/mediatek/mt8186-corsola.dtsi       | 10 ++++------
 4 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
index e74e886a00cb..822a177e7c19 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
@@ -123,8 +123,11 @@ trackpad@2c {
 		reg = <0x2c>;
 		hid-descr-addr = <0x20>;
 		interrupts-extended = <&pio 11 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&trackpad_pin>;
 		vdd-supply = <&pp3300_s3>;
 		wakeup-source;
+		status = "fail-needs-probe";
 	};
 };
 
@@ -197,3 +200,7 @@ pins-vreg-en {
 		};
 	};
 };
+
+&trackpad {
+	status = "fail-needs-probe";
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacool-sku327683.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacool-sku327683.dts
index c3ae6f9616c8..4dbf2cb73a81 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacool-sku327683.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacool-sku327683.dts
@@ -17,6 +17,8 @@ trackpad@15 {
 		compatible = "hid-over-i2c";
 		reg = <0x15>;
 		interrupts-extended = <&pio 11 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&trackpad_pin>;
 		hid-descr-addr = <0x0001>;
 		vdd-supply = <&pp3300_s3>;
 		wakeup-source;
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262148.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262148.dts
index 447b57b12b41..ee5bc2cd9e9f 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262148.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-tentacruel-sku262148.dts
@@ -19,6 +19,8 @@ trackpad@15 {
 		compatible = "hid-over-i2c";
 		reg = <0x15>;
 		interrupts-extended = <&pio 11 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&trackpad_pin>;
 		hid-descr-addr = <0x0001>;
 		vdd-supply = <&pp3300_s3>;
 		wakeup-source;
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola.dtsi b/arch/arm64/boot/dts/mediatek/mt8186-corsola.dtsi
index 18cfc99cfa3c..ff20376a44d7 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186-corsola.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola.dtsi
@@ -398,19 +398,17 @@ &i2c1 {
 
 &i2c2 {
 	pinctrl-names = "default";
-	/*
-	 * Trackpad pin put here to work around second source components
-	 * sharing the pinmux in steelix designs.
-	 */
-	pinctrl-0 = <&i2c2_pins>, <&trackpad_pin>;
+	pinctrl-0 = <&i2c2_pins>;
 	clock-frequency = <400000>;
 	i2c-scl-internal-delay-ns = <10000>;
 	status = "okay";
 
-	trackpad@15 {
+	trackpad: trackpad@15 {
 		compatible = "elan,ekth3000";
 		reg = <0x15>;
 		interrupts-extended = <&pio 11 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&trackpad_pin>;
 		vcc-supply = <&pp3300_s3>;
 		wakeup-source;
 	};
-- 
2.50.0.rc2.692.g299adb8693-goog

[PATCH v3 5/6] arm64: dts: mediatek: mt8186: Merge Voltorb device trees

[Chen-Yu Tsai]

There are only two different SKUs of Voltorb, and the only difference
between them is whether a touchscreen is present or not. This can be
detected by a simple I2C transfer to the address, instead of having
separate device trees.

Merge the two device trees together and simplify the compatible string
list. The dtsi is still kept separate since there is an incoming device
that shares the same design, but with slightly difference components.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
 arch/arm64/boot/dts/mediatek/Makefile               |  3 +--
 .../mediatek/mt8186-corsola-voltorb-sku589824.dts   | 13 -------------
 ...orb-sku589825.dts => mt8186-corsola-voltorb.dts} |  5 ++---
 3 files changed, 3 insertions(+), 18 deletions(-)
 delete mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589824.dts
 rename arch/arm64/boot/dts/mediatek/{mt8186-corsola-voltorb-sku589825.dts => mt8186-corsola-voltorb.dts} (76%)

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index f68865d06edd..a8b8796276aa 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -76,8 +76,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-tentacool-sku327681.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-tentacool-sku327683.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-tentacruel-sku262144.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-tentacruel-sku262148.dtb
-dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-voltorb-sku589824.dtb
-dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-voltorb-sku589825.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-voltorb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-evb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8188-evb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8188-geralt-ciri-sku0.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589824.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589824.dts
deleted file mode 100644
index d16834eec87a..000000000000
--- a/arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589824.dts
+++ /dev/null
@@ -1,13 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0 OR MIT)
-/*
- * Copyright 2022 Google LLC
- */
-
-/dts-v1/;
-#include "mt8186-corsola-voltorb.dtsi"
-
-/ {
-	model = "Google Voltorb sku589824 board";
-	compatible = "google,voltorb-sku589824", "google,voltorb",
-		     "mediatek,mt8186";
-};
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589825.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb.dts
similarity index 76%
rename from arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589825.dts
rename to arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb.dts
index 45e57f7706cc..cc805408a8b7 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589825.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb.dts
@@ -7,9 +7,8 @@
 #include "mt8186-corsola-voltorb.dtsi"
 
 / {
-	model = "Google Voltorb sku589825 board";
-	compatible = "google,voltorb-sku589825", "google,voltorb",
-		     "mediatek,mt8186";
+	model = "Google Voltorb board";
+	compatible = "google,voltorb", "mediatek,mt8186";
 };
 
 &i2c1 {
-- 
2.50.0.rc2.692.g299adb8693-goog

[PATCH v3 6/6] arm64: dts: mediatek: mt8186: Add Squirtle Chromebooks

[Chen-Yu Tsai]

Add a device tree for the MT8186 based Squirtle Chromebooks, also known
as the Acer Chromebook Spin 311 (R724T). The device is a 2-in-1
convertible.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
 arch/arm64/boot/dts/mediatek/Makefile         |   1 +
 .../dts/mediatek/mt8186-corsola-squirtle.dts  | 107 ++++++++++++++++++
 .../dts/mediatek/mt8186-corsola-steelix.dtsi  |   2 +-
 3 files changed, 109 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-squirtle.dts

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index a8b8796276aa..a4df4c21399e 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -68,6 +68,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-magneton-sku393218.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-ponyta-sku0.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-ponyta-sku1.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-rusty-sku196608.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-squirtle.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-starmie-sku0.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-starmie-sku1.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-steelix-sku131072.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-squirtle.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-squirtle.dts
new file mode 100644
index 000000000000..f721ad4e5c97
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-squirtle.dts
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024 Google LLC
+ */
+
+/dts-v1/;
+#include "mt8186-corsola-voltorb.dtsi"
+
+/ {
+	model = "Google squirtle board";
+	compatible = "google,squirtle", "mediatek,mt8186";
+	chassis-type = "convertible";
+};
+
+&i2c1 {
+	touchscreen@10 {
+		compatible = "elan,ekth6915";
+		reg = <0x10>;
+		interrupts-extended = <&pio 12 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&touchscreen_pins>;
+		reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>;
+		vcc33-supply = <&pp3300_s3>;
+		status = "fail-needs-probe";
+	};
+
+	touchscreen@16 {
+		compatible = "elan,ekth8d18", "elan,ekth6a12nay";
+		reg = <0x16>;
+		interrupts-extended = <&pio 12 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&touchscreen_pins>;
+		reset-gpios = <&pio 60 GPIO_ACTIVE_LOW>;
+		vcc33-supply = <&pp3300_s3>;
+		status = "fail-needs-probe";
+	};
+};
+
+&i2c2 {
+	trackpad@68 {
+		compatible = "hid-over-i2c";
+		reg = <0x68>;
+		hid-descr-addr = <0x20>;
+		interrupts-extended = <&pio 11 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&trackpad_pin>;
+		vdd-supply = <&pp3300_s3>;
+		wakeup-source;
+		status = "fail-needs-probe";
+	};
+};
+
+&i2c5 {
+	clock-frequency = <400000>;
+
+	/delete-node/ codec@1a;
+
+	rt5650: codec@1a {
+		compatible = "realtek,rt5650";
+		reg = <0x1a>;
+		interrupts-extended = <&pio 17 IRQ_TYPE_EDGE_BOTH>;
+		avdd-supply = <&mt6366_vio18_reg>;
+		cpvdd-supply = <&mt6366_vio18_reg>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&speaker_codec_pins_default>;
+		cbj-sleeve-gpios = <&pio 150 GPIO_ACTIVE_HIGH>;
+		#sound-dai-cells = <0>;
+		realtek,dmic1-data-pin = <2>;
+		realtek,jd-mode = <2>;
+	};
+};
+
+&sound {
+	compatible = "mediatek,mt8186-mt6366-rt5650-sound";
+	model = "mt8186_rt5650";
+
+	audio-routing =
+		"Headphone", "HPOL",
+		"Headphone", "HPOR",
+		"HDMI1", "TX";
+
+	hs-playback-dai-link {
+		codec {
+			sound-dai = <&rt5650>;
+		};
+	};
+
+	hs-capture-dai-link {
+		codec {
+			sound-dai = <&rt5650>;
+		};
+	};
+
+	spk-hdmi-playback-dai-link {
+		codec {
+			sound-dai = <&it6505dptx>;
+		};
+	};
+};
+
+&speaker_codec {
+	status = "disabled";
+};
+
+&trackpad_steelix {
+	status = "disabled";
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
index 822a177e7c19..8a196dc9a96b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-steelix.dtsi
@@ -118,7 +118,7 @@ &i2c2 {
 	i2c-scl-internal-delay-ns = <22000>;
 
 	/* second source component */
-	trackpad@2c {
+	trackpad_steelix: trackpad@2c {
 		compatible = "hid-over-i2c";
 		reg = <0x2c>;
 		hid-descr-addr = <0x20>;
-- 
2.50.0.rc2.692.g299adb8693-goog

Re: [PATCH v3 0/6] arm64: mediatek: mt8186-corsola: Consolidate and add new devices

[Rob Herring (Arm)]

On Tue, 17 Jun 2025 16:19:57 +0800, Chen-Yu Tsai wrote:
> Hi everyone,
> 
> This is v3 of my "component probe for Corsola devices" series.
> 
> Changes since v2:
> - Rebased onto next-20250616
> - Collected reviewed-by tags
> - Dropped driver changes that are already in v6.16-rc1
> 
> Changes since v1:
> - Reworded commit message for Elan I2C-HID binding change
> - Dropped I2C address constraint from Elan I2C-HID binding completely
> - Dropped enum from new compatible string entry in Elan I2C-HID binding
> - Picked up Rob's ack on two binding changes
> - Rebased onto next-20250417, resolving conflicts with "spherion
>   component prober" changes
> - Link to v1:
>   https://lore.kernel.org/all/20250312104344.3084425-1-wenst@chromium.org/
> 
> Here's a follow up series of the I2C component probers for Chromebooks.
> This series enables the component prober for the Corsola series of
> devices, combines the two existing Voltorb SKUs, and adds a new
> device, codename Squirtle.
> 
> Patch 1 adds a new entry for the Squirtle device to the bindings.
> 
> Patch 2 fixes up the existing device trees for the component prober to
> be active.
> 
> Patch 3 merges the device trees for the Voltorb device.
> 
> Patch 4 adds a device tree file for the Squirtle device, with I2C
> components ready to be probed by the prober.
> 
> Patch 5 enables the prober to probe trackpads on some devices in the
> Corsola family.
> 
> Patch 6 enables the prober to probe touchscreens on Squirtle.
> 
> 
> Everything has been reviewed. Dmitry, please give an Ack so we can merge
> everything through the soc tree.
> 
> 
> Thanks
> ChenYu
> 
> Chen-Yu Tsai (6):
>   dt-bindings: HID: i2c-hid: elan: Introduce Elan eKTH8D18
>   dt-bindings: arm: mediatek: Merge MT8186 Voltorb entries
>   dt-bindings: arm: mediatek: Add MT8186 Squirtle Chromebooks
>   arm64: dts: mediatek: mt8186-steelix: Mark second source components
>     for probing
>   arm64: dts: mediatek: mt8186: Merge Voltorb device trees
>   arm64: dts: mediatek: mt8186: Add Squirtle Chromebooks
> 
>  .../devicetree/bindings/arm/mediatek.yaml     |   7 +-
>  .../bindings/input/elan,ekth6915.yaml         |  12 +-
>  arch/arm64/boot/dts/mediatek/Makefile         |   4 +-
>  .../dts/mediatek/mt8186-corsola-squirtle.dts  | 107 ++++++++++++++++++
>  .../dts/mediatek/mt8186-corsola-steelix.dtsi  |   9 +-
>  .../mt8186-corsola-tentacool-sku327683.dts    |   2 +
>  .../mt8186-corsola-tentacruel-sku262148.dts   |   2 +
>  .../mt8186-corsola-voltorb-sku589824.dts      |  13 ---
>  ...u589825.dts => mt8186-corsola-voltorb.dts} |   5 +-
>  .../boot/dts/mediatek/mt8186-corsola.dtsi     |  10 +-
>  10 files changed, 138 insertions(+), 33 deletions(-)
>  create mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-squirtle.dts
>  delete mode 100644 arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb-sku589824.dts
>  rename arch/arm64/boot/dts/mediatek/{mt8186-corsola-voltorb-sku589825.dts => mt8186-corsola-voltorb.dts} (76%)
> 
> --
> 2.50.0.rc2.692.g299adb8693-goog
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


This patch series was applied (using b4) to base:
 Base: attempting to guess base-commit...
 Base: tags/next-20250617 (best guess, 8/9 blobs matched)

If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)

New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/mediatek/' for 20250617082004.1653492-1-wenst@chromium.org:

arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb.dtb: spmi@10015000 (mediatek,mt8186-spmi): Unevaluated properties are not allowed ('interrupts' was unexpected)
	from schema $id: http://devicetree.org/schemas/spmi/mtk,spmi-mtk-pmif.yaml#
arch/arm64/boot/dts/mediatek/mt8186-corsola-voltorb.dtb: sound (mediatek,mt8186-mt6366-rt5682s-max98360-sound): 'model' is a required property
	from schema $id: http://devicetree.org/schemas/sound/mt8186-mt6366-rt1019-rt5682s.yaml#
arch/arm64/boot/dts/mediatek/mt8186-corsola-squirtle.dtb: spmi@10015000 (mediatek,mt8186-spmi): Unevaluated properties are not allowed ('interrupts' was unexpected)
	from schema $id: http://devicetree.org/schemas/spmi/mtk,spmi-mtk-pmif.yaml#

Re: (subset) [PATCH v3 0/6] arm64: mediatek: mt8186-corsola: Consolidate and add new devices

[AngeloGioacchino Del Regno]

On Tue, 17 Jun 2025 16:19:57 +0800, Chen-Yu Tsai wrote:
> This is v3 of my "component probe for Corsola devices" series.
> 
> Changes since v2:
> - Rebased onto next-20250616
> - Collected reviewed-by tags
> - Dropped driver changes that are already in v6.16-rc1
> 
> [...]

Applied to v6.16-next/dts64, thanks!

[2/6] dt-bindings: arm: mediatek: Merge MT8186 Voltorb entries
      commit: b292005d5cafb0993f7ff2c0477d5b71cbd3e387
[3/6] dt-bindings: arm: mediatek: Add MT8186 Squirtle Chromebooks
      commit: a883bc5dc12d52a6a8d5afbd0131be55f0684364
[4/6] arm64: dts: mediatek: mt8186-steelix: Mark second source components for probing
      commit: 5349994cfd89ca17b8a820ddb41e4572d9e52b49
[5/6] arm64: dts: mediatek: mt8186: Merge Voltorb device trees
      commit: 14e8332e5c5d3b9f8ccfa1f3e0dfe05ca136ba2a
[6/6] arm64: dts: mediatek: mt8186: Add Squirtle Chromebooks
      commit: f7ef352d45b71e6f3cb7bb572f68eaa0981e9e5c

Cheers,
Angelo