From patchwork Tue Jun 9 13:26:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dillon Min X-Patchwork-Id: 1305953 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=sgGbqRUk; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49h9s55hw2z9sTN for ; Tue, 9 Jun 2020 23:27:21 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729621AbgFIN1T (ORCPT ); Tue, 9 Jun 2020 09:27:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57170 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729559AbgFIN1A (ORCPT ); Tue, 9 Jun 2020 09:27:00 -0400 Received: from mail-pf1-x443.google.com (mail-pf1-x443.google.com [IPv6:2607:f8b0:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BB79C05BD1E; Tue, 9 Jun 2020 06:26:59 -0700 (PDT) Received: by mail-pf1-x443.google.com with SMTP id 10so4203007pfx.8; Tue, 09 Jun 2020 06:26:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=aYMF8YUhot7LiLw3oFS3/mzi/UrWf4Gg+68yZs/PTjs=; b=sgGbqRUkyDWUtzzQdzNZIOrKXN8s30ddQ1jDBSWTsBSz8ST1UW2xY9er013Keh0tkb bbVb0EAZmz2FcjOg0tY1AtsIZtW6tCFJhZMb40jRIq7cTqJyhRgeg1/rIt13DaBrDOKd 0PEEey68luuZLlZB/zCUTuNcmeAm0R/8loPKH+3lOODVmw2CAmdfA/uM2yNnfhQwAe5o anOSKZzUJ5moWHDDQ7UxW5LdFo9iz2Q3Ksg90oBDa0q565HCN57RA1oo+Jc6SlZNAnv6 HMi59cFDI7fajeJCX6zy9/VDju2JIaa5Fzyx+FrW+BGjsRTkk7o8yov5/DHzX+SF2h7m ZZIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=aYMF8YUhot7LiLw3oFS3/mzi/UrWf4Gg+68yZs/PTjs=; b=IPKzOmgiPFrcFeKaPSOr27A370mPVCjZN3BM1ogLI6mAqCggC/Ij59xtIJo25sshoG +a/NEilmYL3P72y9LnDDZ6RHxtUauV1xdG+Glcn29VI+L6HZsL+ameBenw2MHOsSVvZD gEXm8bAh4sTJQy5qmmFMrpMGyy7qXTN+NPun0+UKsgbB7u4pjnavpYI9LINE/aFc0/CS LlalN1Qfq69PUgAxzu8AcHi+pKuxeu4XccBRznXmR3J06CLtUGjZsb/SZnTxw4MNGdAa geY0s2PQfvX7KPbpzE9dEc5ZWIx7A5vLo3KLuB99wQya3B/7LEB9pt6aI30mZcFrqw8j VynA== X-Gm-Message-State: AOAM533iS03Abjx4vANUQQJw7rP3XqDPu+DA4vseTrWZDd6mbfZ6yI5o ACAh/s9b/5RvHYTPdc1faJEMRQh2eaw= X-Google-Smtp-Source: ABdhPJw7afLAjpJsItQsnX3qt0rEIAvvOvZk+nKKPPFz9OcVyn+axZGQ/zVVsYCjoQRpV5oByTFdOg== X-Received: by 2002:a65:46cc:: with SMTP id n12mr24887487pgr.80.1591709219129; Tue, 09 Jun 2020 06:26:59 -0700 (PDT) Received: from fmin-OptiPlex-7060.nreal.work ([103.206.191.42]) by smtp.gmail.com with ESMTPSA id b5sm2624348pjz.34.2020.06.09.06.26.56 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 09 Jun 2020 06:26:58 -0700 (PDT) From: dillon.minfei@gmail.com To: robh+dt@kernel.org, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, p.zabel@pengutronix.de, pierre-yves.mordret@st.com, philippe.schenker@toradex.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, dillon min Subject: [PATCH v4 3/4] ARM: dts: stm32: enable stmpe811 on stm32429-disco board Date: Tue, 9 Jun 2020 21:26:42 +0800 Message-Id: <1591709203-12106-4-git-send-email-dillon.minfei@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1591709203-12106-1-git-send-email-dillon.minfei@gmail.com> References: <1591709203-12106-1-git-send-email-dillon.minfei@gmail.com> Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org From: dillon min Enable the stmpe811 touch screen on stm32429-disco board. Signed-off-by: dillon min --- arch/arm/boot/dts/stm32f429-disco.dts | 47 +++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts index 30c0f6717871..fad1ec10efb6 100644 --- a/arch/arm/boot/dts/stm32f429-disco.dts +++ b/arch/arm/boot/dts/stm32f429-disco.dts @@ -49,6 +49,8 @@ #include "stm32f429.dtsi" #include "stm32f429-pinctrl.dtsi" #include +#include +#include / { model = "STMicroelectronics STM32F429i-DISCO board"; @@ -127,3 +129,48 @@ pinctrl-names = "default"; status = "okay"; }; + +&i2c3 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c3_pins>; + clock-frequency = <100000>; + status = "okay"; + + stmpe811@41 { + compatible = "st,stmpe811"; + reg = <0x41>; + interrupts = <15 IRQ_TYPE_EDGE_FALLING>; + interrupt-parent = <&gpioa>; + /* 3.25 MHz ADC clock speed */ + st,adc-freq = <1>; + /* 12-bit ADC */ + st,mod-12b = <1>; + /* internal ADC reference */ + st,ref-sel = <0>; + /* ADC converstion time: 80 clocks */ + st,sample-time = <4>; + + stmpe_touchscreen { + compatible = "st,stmpe-ts"; + /* 8 sample average control */ + st,ave-ctrl = <3>; + /* 7 length fractional part in z */ + st,fraction-z = <7>; + /* + * 50 mA typical 80 mA max touchscreen drivers + * current limit value + */ + st,i-drive = <1>; + /* 1 ms panel driver settling time */ + st,settling = <3>; + /* 5 ms touch detect interrupt delay */ + st,touch-det-delay = <5>; + }; + + stmpe_adc { + compatible = "st,stmpe-adc"; + /* forbid to use ADC channels 3-0 (touch) */ + st,norequest-mask = <0x0F>; + }; + }; +};