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Message-Id: <20241018-post-reset-v2-2-28d539d79e18@chromium.org>
Date: Fri, 18 Oct 2024 13:13:42 +0000
From: Hsin-Te Yuan <yuanhsinte@...omium.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Enric Balletbo i Serra <eballetbo@...nel.org>,
Hsin-Yi Wang <hsinyi@...omium.org>, Benjamin Tissoires <bentiss@...nel.org>,
Hans de Goede <hdegoede@...hat.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
Hsin-Te Yuan <yuanhsinte@...omium.org>
Subject: [PATCH v2 2/4] arm64: dts: mediatek: mt8183: Switch to Elan
touchscreen driver
After commit 2be404486c05 ("HID: i2c-hid-of: Add reset GPIO support to
i2c-hid-of"), the i2c-hid-of driver used by some mt8183 devices resets
the touchscreen without having enough post-reset delay. This makes those
touchscreen fail to get probed.
Switch to Elan touchscreen driver, which has enough post-reset delay.
Fixes: 2be404486c05 ("HID: i2c-hid-of: Add reset GPIO support to i2c-hid-of")
Signed-off-by: Hsin-Te Yuan <yuanhsinte@...omium.org>
---
arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-damu.dts | 10 +++-------
.../boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku1.dts | 9 ++-------
.../boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku6.dts | 9 ++-------
.../boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku7.dts | 9 ++-------
4 files changed, 9 insertions(+), 28 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-damu.dts b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-damu.dts
index ebe6e161354c414d91859494ec9295db75a3baf9..b98a3530511e576347a4ed291d37d45dd42fec97 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-damu.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-damu.dts
@@ -14,14 +14,10 @@ / {
};
&touchscreen {
- status = "okay";
+ compatible = "elan,ekth6a12nay";
- compatible = "hid-over-i2c";
- reg = <0x10>;
- interrupts-extended = <&pio 155 IRQ_TYPE_LEVEL_LOW>;
-
- post-power-on-delay-ms = <10>;
- hid-descr-addr = <0x0001>;
+ vcc33-supply = <&pp3300_alw>;
+ vccio-supply = <&pp1800_alw>;
};
&qca_wifi {
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku1.dts b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku1.dts
index 2dc64cc539f815b9848b8243e5b487f22d605a6d..9fb329626a82034e44fb5fbd2d0ad9675c0a5afa 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku1.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku1.dts
@@ -27,14 +27,9 @@ &cros_ec_pwm {
};
&touchscreen {
- status = "okay";
-
- compatible = "hid-over-i2c";
- reg = <0x10>;
- interrupts-extended = <&pio 155 IRQ_TYPE_LEVEL_LOW>;
+ compatible = "elan,ekth6a12nay";
- post-power-on-delay-ms = <10>;
- hid-descr-addr = <0x0001>;
+ vcc33-supply = <&pp3300_alw>;
};
&qca_wifi {
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku6.dts b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku6.dts
index 53e996f9c605dc36df03d4b0051a91e19fefb38d..6d547361fc4f9d2ab1f9b048af443495c9bed323 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku6.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku6.dts
@@ -14,14 +14,9 @@ / {
};
&touchscreen {
- status = "okay";
+ compatible = "elan,ekth6a12nay";
- compatible = "hid-over-i2c";
- reg = <0x10>;
- interrupts-extended = <&pio 155 IRQ_TYPE_LEVEL_LOW>;
-
- post-power-on-delay-ms = <10>;
- hid-descr-addr = <0x0001>;
+ vcc33-supply = <&pp3300_alw>;
};
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku7.dts b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku7.dts
index d7db621383c6b823af08ca07e0794758d062e211..39ab09ce28aa2ed4335d5279a965f23a8458688e 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku7.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku7.dts
@@ -14,14 +14,9 @@ / {
};
&touchscreen {
- status = "okay";
+ compatible = "elan,ekth6a12nay";
- compatible = "hid-over-i2c";
- reg = <0x10>;
- interrupts-extended = <&pio 155 IRQ_TYPE_LEVEL_LOW>;
-
- post-power-on-delay-ms = <10>;
- hid-descr-addr = <0x0001>;
+ vcc33-supply = <&pp3300_alw>;
};
--
2.47.0.rc1.288.g06298d1525-goog
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