From patchwork Wed Dec 8 12:40:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair Francis X-Patchwork-Id: 12664367 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F36C5C433EF for ; Wed, 8 Dec 2021 12:41:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233642AbhLHMoq (ORCPT ); Wed, 8 Dec 2021 07:44:46 -0500 Received: from new4-smtp.messagingengine.com ([66.111.4.230]:52827 "EHLO new4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233631AbhLHMoq (ORCPT ); Wed, 8 Dec 2021 07:44:46 -0500 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailnew.nyi.internal (Postfix) with ESMTP id 02AAE580247; Wed, 8 Dec 2021 07:41:14 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Wed, 08 Dec 2021 07:41:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alistair23.me; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=Xtb2ZyvQwiEmj aFTIab7ygGJDdh4OgdnrwNvxS0c+U0=; b=3D0ZAssEs0RKq9FoH4GlSFCifNLoz /tbNH1YZYgzKbz7AZJtEVlsKF7KjkO0vEdc+Gg8z7QSrby3ZvcOo3nPtBZXG1Kl8 81NaZIuM5OHkMXmIjO3vnbeS9/8XuyR//xwsgTLIDr1wK8oaCXb/cvF8pLJe9J7E EB6rlkAuc/FLFT7oQyFdST87ZSJuKnPJRS0w3OkC+3BvQ+f3qal8drDY897IxBts 5oD4VJNsmKHRA9TR/4v3muMEW22faVnPKYIzbCjnKKDVYvYsiS2t4k1cNymKQSzu qtVoPZQ5xi9efRpR5xZupw9fg/F7JxV6ZMsWSoyszYOZuF4V8kCtxhnLA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=Xtb2ZyvQwiEmjaFTIab7ygGJDdh4OgdnrwNvxS0c+U0=; b=M6LdJMZa w88FDYukWIi4j0z+XX7qW7PlScdq/Ud0kARHaNLm2N+xBZl7bd2u3UcCDGLL2EOe nVS3czhyRCaU8GYJ8gMOcsx8Uld6uho+rK6YKROVWktVUW4pSFxu0IVoTtgAXYIM vDn64zTt/BIb5lhR63LUQFyyCTDOVbkb+pGzv0lOHS0n8SDwxzZaLJpA8naepSor rLKXZdnQdheEWvecBW3RJmv33VfUba4NN+cFdYHRGN+C9wrrEu44Kz0mifZPS/nf XDmQF/dTULCo/1JCZShUCN84gfPOqrQJKxG7LcqsHP2AWlp9PjlSRVkuG1eu1xZh 3OIDn1Zy3Zq+ig== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvuddrjeekgdegvdcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpeetlhhishhtrghirhcuhfhrrghntghishcuoegrlhhishhtrghi rhesrghlihhsthgrihhrvdefrdhmvgeqnecuggftrfgrthhtvghrnhepgeegtdetjeekge eguefgheeuvedugedvteejveeiudegvddtkeffkeehtdetudfhnecuvehluhhsthgvrhfu ihiivgepvdenucfrrghrrghmpehmrghilhhfrhhomheprghlihhsthgrihhrsegrlhhish htrghirhdvfedrmhgv X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 8 Dec 2021 07:41:07 -0500 (EST) From: Alistair Francis To: s.hauer@pengutronix.de, shawnguo@kernel.org, dmitry.torokhov@gmail.com, benjamin.tissoires@redhat.com Cc: jikos@kernel.org, linux-kernel@vger.kernel.org, alistair23@gmail.com, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org, Jason.Gerecke@wacom.com, linux-imx@nxp.com, Ping.Cheng@wacom.com, devicetree@vger.kernel.org, martin.chen@wacom.com, tatsunosuke.tobita@wacom.com, Alistair Francis Subject: [PATCH v16 3/3] ARM: dts: imx7d: remarkable2: add wacom digitizer device Date: Wed, 8 Dec 2021 22:40:45 +1000 Message-Id: <20211208124045.61815-4-alistair@alistair23.me> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211208124045.61815-1-alistair@alistair23.me> References: <20211208124045.61815-1-alistair@alistair23.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Add Wacom I2C support for the reMarkable 2 eInk tablet using the generic I2C HID framework. Signed-off-by: Alistair Francis --- arch/arm/boot/dts/imx7d-remarkable2.dts | 59 +++++++++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/arch/arm/boot/dts/imx7d-remarkable2.dts b/arch/arm/boot/dts/imx7d-remarkable2.dts index 89cbf13097a4..a2a91bfdd98e 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 +64,26 @@ &clks { assigned-clock-rates = <0>, <32768>; }; +&i2c1 { + clock-frequency = <400000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c1>; + status = "okay"; + + wacom_digitizer: digitizer@9 { + compatible = "hid-over-i2c"; + reg = <0x09>; + hid-descr-addr = <0x01>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_wacom>; + interrupt-parent = <&gpio1>; + interrupts = <1 IRQ_TYPE_LEVEL_LOW>; + touchscreen-inverted-x; + touchscreen-inverted-y; + vdd-supply = <®_digitizer>; + }; +}; + &snvs_pwrkey { status = "okay"; }; @@ -117,6 +150,25 @@ &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 = < @@ -125,6 +177,13 @@ 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