Add Skitty initial device tree.
Support second source Synaptics trackpad
Support US2 keyboard.
Enhance touch screen timing for ELAN
Based on experiment, set drive-strength to 6mA (default = 8mA)
Modify sbs battery reg to 0x0f
Signed-off-by: Geoffrey Chien <geoffrey_chien@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
.../devicetree/bindings/arm/mediatek.yaml | 8 +++
arch/arm64/boot/dts/mediatek/Makefile | 4 ++
.../dts/mediatek/mt8186-corsola-skitty-sku1.dts | 23 +++++++
.../dts/mediatek/mt8186-corsola-skitty-sku2.dts | 13 ++++
.../dts/mediatek/mt8186-corsola-skitty-sku3.dts | 40 ++++++++++++
.../dts/mediatek/mt8186-corsola-skitty-sku4.dts | 30 +++++++++
.../boot/dts/mediatek/mt8186-corsola-skitty.dtsi | 76 ++++++++++++++++++++++
7 files changed, 194 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index 1d4bb50fcd8d9aadb7b77e144a474b79da005056..29e7555569a772ba042e29af01ea98fdd3be1525 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -224,6 +224,14 @@ properties:
- google,pico-sku2
- const: google,pico
- const: mediatek,mt8183
+ - description: Google Skitty (HP Chromebook G1m 11 inch)
+ items:
+ - const: google,skitty-sku1
+ - const: google,skitty-sku2
+ - const: google,skitty-sku3
+ - const: google,skitty-sku4
+ - const: google,skitty
+ - const: mediatek,mt8186
- description: Google Willow (Acer Chromebook 311 C722/C722T)
items:
- enum:
diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 8fd7b2bb7a1590341e7bb4ea1ecf039ae3e8eb0d..328e1ee444bd81b5a2aa3d21acb7a5c5a3318a87 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -59,6 +59,10 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-magneton-sku393216.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-magneton-sku393217.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-magneton-sku393218.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-rusty-sku196608.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-skitty-sku1.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-skitty-sku2.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-skitty-sku3.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8186-corsola-skitty-sku4.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
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku1.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku1.dts
new file mode 100644
index 0000000000000000000000000000000000000000..a0e7b10445333d6f83fc4c461ce8f8d75ffaa697
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku1.dts
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024 Google LLC
+ */
+
+/dts-v1/;
+#include "mt8186-corsola-skitty.dtsi"
+
+/ {
+ model = "Google Skitty sku1 board";
+ compatible = "google,skitty-sku1",
+ "google,skitty", "google,corsola", "mediatek,mt8186";
+};
+
+&i2c1 {
+ /delete-node/ touchscreen@10;
+ touchscreen: touchscreen@10 {
+ compatible = "elan,ekth3500";
+ reg = <0x10>;
+ interrupts-extended = <&pio 12 IRQ_TYPE_LEVEL_LOW>;
+ status = "okay";
+ };
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku2.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku2.dts
new file mode 100644
index 0000000000000000000000000000000000000000..c071c1b8952b50eacfc2d48dbb9450e9b358ef0e
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku2.dts
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024 Google LLC
+ */
+
+/dts-v1/;
+#include "mt8186-corsola-skitty.dtsi"
+
+/ {
+ model = "Google Skitty sku2 board";
+ compatible = "google,skitty-sku2",
+ "google,skitty", "google,corsola", "mediatek,mt8186";
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku3.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku3.dts
new file mode 100644
index 0000000000000000000000000000000000000000..09b4b26aba93c0e65b5fbef6eb81edbe414daa0b
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku3.dts
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024 Google LLC
+ */
+
+/dts-v1/;
+#include "mt8186-corsola-skitty.dtsi"
+
+/ {
+ model = "Google Skitty sku3 board";
+ compatible = "google,skitty-sku3",
+ "google,skitty", "google,corsola", "mediatek,mt8186";
+};
+
+&i2c1 {
+ /delete-node/ touchscreen@10;
+ touchscreen: touchscreen@10 {
+ compatible = "elan,ekth3500";
+ reg = <0x10>;
+ interrupts-extended = <&pio 12 IRQ_TYPE_LEVEL_LOW>;
+ status = "okay";
+ };
+};
+
+&keyboard_controller {
+ 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_SYSRQ)
+ MATRIX_KEY(0x02, 0x04, KEY_BRIGHTNESSDOWN)
+ MATRIX_KEY(0x01, 0x04, KEY_BRIGHTNESSUP)
+ MATRIX_KEY(0x02, 0x09, KEY_MUTE)
+ MATRIX_KEY(0x01, 0x09, KEY_VOLUMEDOWN)
+ MATRIX_KEY(0x00, 0x04, KEY_VOLUMEUP)
+ CROS_STD_MAIN_KEYMAP
+ MATRIX_KEY(0x04, 0x00, KEY_102ND)
+ >;
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku4.dts b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku4.dts
new file mode 100644
index 0000000000000000000000000000000000000000..c3e2dbd0120f32062dba6a2f6f9e8ee31db02588
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty-sku4.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024 Google LLC
+ */
+
+/dts-v1/;
+#include "mt8186-corsola-skitty.dtsi"
+
+/ {
+ model = "Google Skitty sku4 board";
+ compatible = "google,skitty-sku4",
+ "google,skitty", "google,corsola", "mediatek,mt8186";
+};
+
+&keyboard_controller {
+ 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_SYSRQ)
+ MATRIX_KEY(0x02, 0x04, KEY_BRIGHTNESSDOWN)
+ MATRIX_KEY(0x01, 0x04, KEY_BRIGHTNESSUP)
+ MATRIX_KEY(0x02, 0x09, KEY_MUTE)
+ MATRIX_KEY(0x01, 0x09, KEY_VOLUMEDOWN)
+ MATRIX_KEY(0x00, 0x04, KEY_VOLUMEUP)
+ CROS_STD_MAIN_KEYMAP
+ MATRIX_KEY(0x04, 0x00, KEY_102ND)
+ >;
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty.dtsi b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty.dtsi
new file mode 100644
index 0000000000000000000000000000000000000000..51a05f96191b4e40ad1f77e6a8ea23c99af3b279
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8186-corsola-skitty.dtsi
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024 Google LLC
+ */
+
+/dts-v1/;
+#include "mt8186-corsola-krabby.dtsi"
+
+&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_SYSRQ)
+ MATRIX_KEY(0x02, 0x04, KEY_BRIGHTNESSDOWN)
+ MATRIX_KEY(0x01, 0x04, KEY_BRIGHTNESSUP)
+ MATRIX_KEY(0x02, 0x09, KEY_MUTE)
+ MATRIX_KEY(0x01, 0x09, KEY_VOLUMEDOWN)
+ MATRIX_KEY(0x00, 0x04, KEY_VOLUMEUP)
+ CROS_STD_MAIN_KEYMAP
+ >;
+};
+
+&usb_c1 {
+ status = "disabled";
+};
+
+&target {
+ temperature = <76000>;
+};
+
+&i2c2 {
+ touchpad@2c {
+ compatible = "hid-over-i2c";
+ reg = <0x2c>;
+ hid-descr-addr = <0x20>;
+ interrupts-extended = <&pio 11 IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&pp3300_s3>;
+ wakeup-source;
+ };
+};
+
+&mmc1_pins_uhs {
+ pins-clk {
+ drive-strength = <MTK_DRIVE_6mA>;
+ };
+
+ pins-cmd-dat {
+ drive-strength = <MTK_DRIVE_6mA>;
+ };
+};
+
+&i2c_tunnel {
+ /delete-node/ sbs-battery@b;
+
+ battery: sbs-battery@f {
+ compatible = "sbs,sbs-battery";
+ reg = <0xf>;
+ sbs,i2c-retry-count = <2>;
+ sbs,poll-retry-count = <1>;
+ };
+};
---
base-commit: 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8
change-id: 20241216-skitty_kernel-6e330a493d51
Best regards,
--
Geoffrey Chien <geoffrey_chien@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
