[PATCH v5 10/10] arm64: dts: mediatek: mt8173-elm-hana: Mark touchscreens and trackpads as fail

Chen-Yu Tsai
2024-08-22T09:20:57Z

Instead of having them all available, 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.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
Changes since v4:
- Rebased

Changes since v3:
- Also remove second source workaround, i.e. move the interrupt line
pinctrl entry from the i2c node back to the components.

Changes since v2:
- Drop class from status
---
arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi | 13 +++++++++++++
arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 4 ++--
2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi
index 8d1cbc92bce3..251e084bf7de 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtsi
@@ -14,6 +14,7 @@ touchscreen2: touchscreen@34 {
compatible = "melfas,mip4_ts";
reg = <0x34>;
interrupts-extended = <&pio 88 IRQ_TYPE_LEVEL_LOW>;
+ status = "fail-needs-probe";
};

/*
@@ -26,6 +27,7 @@ touchscreen3: touchscreen@20 {
reg = <0x20>;
hid-descr-addr = <0x0020>;
interrupts-extended = <&pio 88 IRQ_TYPE_LEVEL_LOW>;
+ status = "fail-needs-probe";
};

/* Lenovo Ideapad C330 uses G2Touch touchscreen as a 2nd source touchscreen */
@@ -47,9 +49,12 @@ &i2c4 {
trackpad2: trackpad@2c {
compatible = "hid-over-i2c";
interrupts-extended = <&pio 117 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&trackpad_irq>;
reg = <0x2c>;
hid-descr-addr = <0x0020>;
wakeup-source;
+ status = "fail-needs-probe";
};
};

@@ -74,3 +79,11 @@ pins_wp {
};
};
};
+
+&touchscreen {
+ status = "fail-needs-probe";
+};
+
+&trackpad {
+ status = "fail-needs-probe";
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
index b4d85147b77b..eee64461421f 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
@@ -358,12 +358,12 @@ touchscreen: touchscreen@10 {
&i2c4 {
clock-frequency = <400000>;
status = "okay";
- pinctrl-names = "default";
- pinctrl-0 = <&trackpad_irq>;

trackpad: trackpad@15 {
compatible = "elan,ekth3000";
interrupts-extended = <&pio 117 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&trackpad_irq>;
reg = <0x15>;
vcc-supply = <&mt6397_vgp6_reg>;
wakeup-source;
--
2.46.0.184.g6999bdac58-goog