From: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
To: Matthias Brugger <matthias.bgg@gmail.com>
Cc: "AngeloGioacchino Del Regno"
<angelogioacchino.delregno@collabora.com>,
kernel@collabora.com,
"Nícolas F. R. A. Prado" <nfraprado@collabora.com>,
"Rob Herring" <robh+dt@kernel.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org
Subject: [PATCH v1 09/10] arm64: dts: mediatek: asurada: Add I2C touchscreen
Date: Wed, 16 Mar 2022 11:13:26 -0400 [thread overview]
Message-ID: <20220316151327.564214-10-nfraprado@collabora.com> (raw)
In-Reply-To: <20220316151327.564214-1-nfraprado@collabora.com>
All machines of the Asurada platform have a touchscreen at address 0x10
in the I2C0 bus, but the devices vary: Spherion has the Elan eKTH3500
touchscreen, while Hayato has a generic HID-over-i2c touchscreen.
Add common support for the touchscreens on the platform and the
specifics in each board file.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
.../dts/mediatek/mt8192-asurada-hayato-r1.dts | 7 ++++++
.../mediatek/mt8192-asurada-spherion-r0.dts | 4 +++
.../boot/dts/mediatek/mt8192-asurada.dtsi | 25 +++++++++++++++++++
3 files changed, 36 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts b/arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts
index e18e14b13d61..22d187df1428 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada-hayato-r1.dts
@@ -9,3 +9,10 @@ / {
model = "MediaTek Hayato rev1";
compatible = "google,hayato-rev1", "google,hayato", "mediatek,mt8192";
};
+
+&touchscreen {
+ compatible = "hid-over-i2c";
+ post-power-on-delay-ms = <10>;
+ hid-descr-addr = <0x0001>;
+ vdd-supply = <&pp3300_u>;
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts b/arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts
index b5372ce6bd95..20ae4a869c63 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada-spherion-r0.dts
@@ -11,3 +11,7 @@ / {
"google,spherion-rev1", "google,spherion-rev0",
"google,spherion", "mediatek,mt8192";
};
+
+&touchscreen {
+ compatible = "elan,ekth3500";
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index b911f4fc3038..6e5c2f8fd591 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -92,6 +92,13 @@ &i2c0 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
+
+ touchscreen: touchscreen@10 {
+ reg = <0x10>;
+ interrupts-extended = <&pio 21 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&touchscreen_pins>;
+ };
};
&i2c1 {
@@ -458,6 +465,24 @@ pins-int-n {
mediatek,pull-up-adv = <3>;
};
};
+
+ touchscreen_pins: touchscreen-default-pins {
+ pins-irq {
+ pinmux = <PINMUX_GPIO21__FUNC_GPIO21>;
+ input-enable;
+ bias-pull-up;
+ };
+
+ pins-reset {
+ pinmux = <PINMUX_GPIO137__FUNC_GPIO137>;
+ output-high;
+ };
+
+ pins-report-sw {
+ pinmux = <PINMUX_GPIO138__FUNC_GPIO138>;
+ output-low;
+ };
+ };
};
&spi1 {
--
2.35.1
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next prev parent reply other threads:[~2022-03-16 15:27 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-16 15:13 [PATCH v1 00/10] Introduce support for MediaTek MT8192 Google Chromebooks Nícolas F. R. A. Prado
2022-03-16 15:13 ` [PATCH v1 01/10] arm64: dts: mediatek: Introduce MT8192-based Asurada board family Nícolas F. R. A. Prado
2022-04-27 8:43 ` Chen-Yu Tsai
2022-04-27 13:54 ` Nícolas F. R. A. Prado
2022-03-16 15:13 ` [PATCH v1 02/10] arm64: dts: mediatek: asurada: Document GPIO names Nícolas F. R. A. Prado
2022-03-16 15:13 ` [PATCH v1 03/10] arm64: dts: mediatek: asurada: Add system-wide power supplies Nícolas F. R. A. Prado
2022-03-16 15:13 ` [PATCH v1 04/10] arm64: dts: mediatek: asurada: Enable and configure I2C and SPI busses Nícolas F. R. A. Prado
2022-03-16 15:13 ` [PATCH v1 05/10] arm64: dts: mediatek: asurada: Add ChromeOS EC Nícolas F. R. A. Prado
2022-03-16 15:13 ` [PATCH v1 06/10] arm64: dts: mediatek: asurada: Add keyboard mapping for the top row Nícolas F. R. A. Prado
2022-03-16 16:42 ` Maya Matuszczyk
2022-03-17 14:40 ` Nícolas F. R. A. Prado
2022-03-16 15:13 ` [PATCH v1 07/10] arm64: dts: mediatek: asurada: Add Cr50 TPM Nícolas F. R. A. Prado
2022-03-16 15:13 ` [PATCH v1 08/10] arm64: dts: mediatek: asurada: Add Elan eKTH3000 I2C trackpad Nícolas F. R. A. Prado
2022-03-16 15:13 ` Nícolas F. R. A. Prado [this message]
2022-03-16 15:13 ` [PATCH v1 10/10] arm64: dts: mediatek: spherion: Add keyboard backlight Nícolas F. R. A. Prado
2022-03-18 11:41 ` [PATCH v1 00/10] Introduce support for MediaTek MT8192 Google Chromebooks AngeloGioacchino Del Regno
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