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From: Alistair Francis <alistair@alistair23.me>
To: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org,
	linux-imx@nxp.com, kernel@pengutronix.d, pinglinux@gmail.com,
	tatsunosuke.tobita@wacom.com, junkpainting@gmail.com,
	ping.cheng@wacom.com
Cc: linux-kernel@vger.kernel.org, alistair23@gmail.com,
	Alistair Francis <alistair@alistair23.me>
Subject: [PATCH v6 9/9] ARM: dts: imx7d: remarkable2: add wacom digitizer device
Date: Tue, 15 Jun 2021 20:30:14 +1000	[thread overview]
Message-ID: <20210615103014.798-10-alistair@alistair23.me> (raw)
In-Reply-To: <20210615103014.798-1-alistair@alistair23.me>

Enable the wacom_i2c touchscreen for the reMarkable2.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
---
 arch/arm/boot/dts/imx7d-remarkable2.dts | 61 +++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm/boot/dts/imx7d-remarkable2.dts b/arch/arm/boot/dts/imx7d-remarkable2.dts
index 7eebcd7f23bb..35262c60f015 100644
--- a/arch/arm/boot/dts/imx7d-remarkable2.dts
+++ b/arch/arm/boot/dts/imx7d-remarkable2.dts
@@ -34,6 +34,19 @@ reg_brcm: regulator-brcm {
 		startup-delay-us = <150>;
 	};
 
+	reg_digitizer: regulator-digitizer {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_3V3_DIGITIZER";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		pinctrl-names = "default", "sleep";
+		pinctrl-0 = <&pinctrl_digitizer_reg>;
+		pinctrl-1 = <&pinctrl_digitizer_reg>;
+		gpio = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		startup-delay-us = <100000>; /* 100 ms */
+	};
+
 	wifi_pwrseq: wifi_pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		pinctrl-names = "default";
@@ -51,6 +64,28 @@ &clks {
 	assigned-clock-rates = <0>, <32768>;
 };
 
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	wacom_digitizer: digitizer@9 {
+		compatible = "wacom,i2c-30";
+		reg = <0x09>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_wacom>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+		flip-tilt-x;
+		flip-tilt-y;
+		flip-pos-x;
+		flip-pos-y;
+		flip-distance;
+		vdd-supply = <&reg_digitizer>;
+	};
+};
+
 &snvs_pwrkey {
 	status = "okay";
 };
@@ -118,6 +153,25 @@ &wdog1 {
 	fsl,ext-reset-output;
 };
 
+&iomuxc_lpsr {
+	pinctrl_digitizer_reg: digitizerreggrp {
+		fsl,pins = <
+			/* DIGITIZER_PWR_EN */
+			MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6	0x14
+		>;
+	};
+
+	pinctrl_wacom: wacomgrp {
+		fsl,pins = <
+			/*MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5	0x00000014 /* FWE */
+			MX7D_PAD_LPSR_GPIO1_IO04__GPIO1_IO4	0x00000074 /* PDCTB */
+			MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1	0x00000034 /* WACOM INT */
+			/*MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6	0x00000014 /* WACOM PWR ENABLE */
+			/*MX7D_PAD_LPSR_GPIO1_IO00__GPIO1_IO0	0x00000074 /* WACOM RESET */
+		>;
+	};
+};
+
 &iomuxc {
 	pinctrl_brcm_reg: brcmreggrp {
 		fsl,pins = <
@@ -126,6 +180,13 @@ MX7D_PAD_SAI1_TX_BCLK__GPIO6_IO13	0x14
 		>;
 	};
 
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX7D_PAD_I2C1_SDA__I2C1_SDA		0x4000007f
+			MX7D_PAD_I2C1_SCL__I2C1_SCL		0x4000007f
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX	0x79
-- 
2.31.1


      parent reply	other threads:[~2021-06-15 10:31 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-15 10:30 [PATCH v6 0/9] Add Wacom I2C support to rM2 Alistair Francis
2021-06-15 10:30 ` [PATCH v6 1/9] dt-bindings: Add Wacom to vendor bindings Alistair Francis
2021-06-15 16:50   ` Dmitry Torokhov
2021-06-15 10:30 ` [PATCH v6 2/9] dt-bindings: touchscreen: Initial commit of wacom,generic Alistair Francis
2021-06-15 16:54   ` Dmitry Torokhov
2021-06-15 10:30 ` [PATCH v6 3/9] Input: wacom_i2c - Add device tree support to wacom_i2c Alistair Francis
2021-06-15 16:55   ` Dmitry Torokhov
2021-06-15 21:19     ` Alistair Francis
2021-06-15 10:30 ` [PATCH v6 4/9] Input: wacom_i2c - Add touchscren properties Alistair Francis
2021-06-15 10:30 ` [PATCH v6 5/9] Input: wacom_i2c - Add support for distance and tilt x/y Alistair Francis
2021-06-15 10:30 ` [PATCH v6 6/9] Input: wacom_i2c - Clean up the query device fields Alistair Francis
2021-06-15 10:30 ` [PATCH v6 7/9] Input: wacom_i2c - Add support for vdd regulator Alistair Francis
2021-06-15 10:30 ` [PATCH v6 8/9] ARM: imx_v6_v7_defconfig: Enable Wacom I2C Alistair Francis
2021-06-15 10:30 ` Alistair Francis [this message]

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