linux-kernel - [PATCH v2 6/6] arch/arm: reMarkable2: Enable wacom

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210121065643.342-7-alistair@alistair23.me>
Date:   Wed, 20 Jan 2021 22:56:43 -0800
From:   Alistair Francis <alistair@...stair23.me>
To:     dmitry.torokhov@...il.com, linux-input@...r.kernel.org,
        linux-imx@....com, kernel@...gutronix.de
Cc:     linux-kernel@...r.kernel.org, alistair23@...il.com,
        Alistair Francis <alistair@...stair23.me>
Subject: [PATCH v2 6/6] arch/arm: reMarkable2: Enable wacom_i2c

Enable the wacom_i2c touchscreen for the reMarkable2.

Signed-off-by: Alistair Francis <alistair@...stair23.me>
---
 arch/arm/boot/dts/imx7d-remarkable2.dts | 41 +++++++++++++++++++++++++
 arch/arm/configs/imx_v6_v7_defconfig    |  1 +
 2 files changed, 42 insertions(+)

diff --git a/arch/arm/boot/dts/imx7d-remarkable2.dts b/arch/arm/boot/dts/imx7d-remarkable2.dts
index fba55a0e028a..8052d884a5e5 100644
--- a/arch/arm/boot/dts/imx7d-remarkable2.dts
+++ b/arch/arm/boot/dts/imx7d-remarkable2.dts
@@ -150,6 +150,30 @@ &dma_apbh {
 	status = "disabled";
 };
 
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	pinctrl-1 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	digitizer: wacom-i2c@9 {
+		pinctrl-names = "default", "sleep";
+		pinctrl-0 = <&pinctrl_wacom>;
+		pinctrl-1 = <&pinctrl_wacom>;
+		compatible = "wacom,wacom-i2c";
+		reg = <0x09>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <1 2>;
+		flip-tilt-x;
+		flip-tilt-y;
+		flip-pos-x;
+		flip-pos-y;
+		flip-distance;
+		vdd-supply = <&reg_digitizer>;
+	};
+};
+
 &sdma {
 	status = "okay";
 };
@@ -221,6 +245,16 @@ &wdog1 {
 };
 
 &iomuxc_lpsr {
+	pinctrl_wacom: wacomgrp {
+		fsl,pins = <
+			/*MX7D_PAD_LPSR_GPIO1_IO00__GPIO1_IO0	0x00000074 /* WACOM RESET */
+			MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1	0x00000034 /* WACOM INT */
+			MX7D_PAD_LPSR_GPIO1_IO04__GPIO1_IO4	0x00000074 /* PDCTB */
+			/*MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5	0x00000014 /* FWE */
+			/*MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6	0x00000014 /* WACOM PWR ENABLE */
+		>;
+	};
+
 	pinctrl_digitizer_reg: digitizerreggrp {
 		fsl,pins = <
 			/* DIGITIZER_PWR_EN */
@@ -236,6 +270,13 @@ MX7D_PAD_SAI1_RX_SYNC__GPIO6_IO16	0x59
 		>;
 	};
 
+	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
diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index fa9229616106..2fc8dc6a8b0a 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -167,6 +167,7 @@ CONFIG_TOUCHSCREEN_DA9052=y
 CONFIG_TOUCHSCREEN_EGALAX=y
 CONFIG_TOUCHSCREEN_GOODIX=y
 CONFIG_TOUCHSCREEN_ILI210X=y
+CONFIG_TOUCHSCREEN_WACOM_I2C=y
 CONFIG_TOUCHSCREEN_MAX11801=y
 CONFIG_TOUCHSCREEN_IMX6UL_TSC=y
 CONFIG_TOUCHSCREEN_EDT_FT5X06=y
-- 
2.29.2