From patchwork Fri Dec 9 17:12:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 13070032 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 E9E45C4708D for ; Fri, 9 Dec 2022 17:13:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229840AbiLIRNW (ORCPT ); Fri, 9 Dec 2022 12:13:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229470AbiLIRNO (ORCPT ); Fri, 9 Dec 2022 12:13:14 -0500 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B190A3D917 for ; Fri, 9 Dec 2022 09:13:12 -0800 (PST) Received: by mail-pj1-x1029.google.com with SMTP id fa4-20020a17090af0c400b002198d1328a0so8730138pjb.0 for ; Fri, 09 Dec 2022 09:13:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=9fhG6NLEcguqmAuYDYowfad0qz2/TgWDY6TZ0P8EmmE=; b=DwMtscjRx2e9DHcQ3qHJBjwp3qAxJlfIMS7enPtgMEzR0WF/RbYk4r3FVE2Y5EfIzG WAGNKS+jVOFYh1j1/PSLbDGHWYpgFeChoeBPE+l5nrxDcJWnXc80fBL82aZsQVbLtwGK EUe0yfSxwRf7jVat/QqcytPkeiqkhal6zYe9U= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=9fhG6NLEcguqmAuYDYowfad0qz2/TgWDY6TZ0P8EmmE=; b=def2i5OSU02IkTpshz7VsK49JXDO/IcokkwIi5F7TvG0jfd4WnuQlrwiIL6I/8xOF6 h+giaaLZ+WsboVQAL3ryFHFOFIUVuCINfuLly9UUOXhxIjHa/5lPHbdZeMGSjvv+srcJ U6PgN/fL5LkS0Tis/noGjFlzgT76n+nC7xGtySkjD9nZsV7UWgePfeYWGpzsOtNM285C CCbwdKvMwzJwD+Rlh4fK6EdN7iiDMtdLEwZntEX17m4OQhwTFhta3l0KI4/Dh7EQoF0o kuMviQE1pfP/QdZKuDEHw0nSt94FxkBg7iJEAlDqOcTH6diFpBFDK8Lj1X1AWUYAKGgX Cidg== X-Gm-Message-State: ANoB5pkPP/CU8W0mnCeGaO59q1hNNa8KPJjp8BKIpe6L5+hI33oHU43v DsdwwQ0lo66dQnQIVWA7MDCPkg== X-Google-Smtp-Source: AA0mqf5OyDHM0ikRuMBlseFYWLgr+l1YbcjXZ6ndqQTpvFks/CfHeWVr8qYzZCB34RzoZUjMcZEwkQ== X-Received: by 2002:a17:902:ab54:b0:189:6bda:e98f with SMTP id ij20-20020a170902ab5400b001896bdae98fmr6187571plb.58.1670605992266; Fri, 09 Dec 2022 09:13:12 -0800 (PST) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:9a82:7898:7bf4:b4f]) by smtp.gmail.com with ESMTPSA id j16-20020a170902da9000b00189c62eac37sm1597503plx.32.2022.12.09.09.13.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Dec 2022 09:13:11 -0800 (PST) From: Douglas Anderson To: Bjorn Andersson Cc: swboyd@chromium.org, Dmitry Torokhov , mka@chromium.org, Yunlong Jia , linux-arm-msm@vger.kernel.org, Konrad Dybcio , linux-input@vger.kernel.org, Douglas Anderson , Andy Gross , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 0/4] arm64: dts: qcom: sc7180: Make pazquel360's touchscreen work Date: Fri, 9 Dec 2022 09:12:36 -0800 Message-Id: <20221209171240.1614904-1-dianders@chromium.org> X-Mailer: git-send-email 2.39.0.rc1.256.g54fd8350bd-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This series of patches adds / fixes problems with pazquel360's touchscreen. A few notes here: 1. Originally the touchscreen was supposed to be added as part of the first landing of the pazquel360 device tree. ...but the fact that Yunlong changed email addresses seems to have messed up Bjorn's scripts. What landed was v3 [1] instead of v5 [2]. The pazquel360 part of this series is that diff (minus the incorrect 'hid-descr-addr' property). 2. We delayed sending the fixup till now because soon after the series landed upstream we found that some laptops were having trouble initting the touchscreen in cases where the eDP/touchscreen regulator was left on by the bootloader. We've been struggling to make sense of all of this. As part of this investigation we landed a85fbd649844 ("Input: elants_i2c - properly handle the reset GPIO when power is off") but that wasn't enough. That fix, together with the fixes in this series, is enough though. 3. In v1 and v2, this series included an elan driver patch too. That's landed, so v3 is just device tree stuff. It turns out that with _just_ the device tree changes things are actually working OK but the timing is tight, so getting a little extra breathing room from the Linux driver was nice. 4. Despite the fact that we did debugging here on pazquel360, many of the changes here are made in general for trogdor devices. I believe that this will make the timing more correct on those devices even if we weren't actually seeing problems. [1] https://lore.kernel.org/r/20220901024827.v3.2.Iea2d2918adfff2825b87d428b5732717425c196f@changeid [2] https://lore.kernel.org/r/20220923083657.v5.3.Iea2d2918adfff2825b87d428b5732717425c196f@changeid Changes in v3: - Removed hid-descr-addr Changes in v2: - Fix typo in commit message (Matthias) Douglas Anderson (4): arm64: dts: qcom: sc7180: Bump up trogdor ts_reset_l drive strength arm64: dts: qcom: sc7180: Add trogdor eDP/touchscreen regulator off-on-time arm64: dts: qcom: sc7180: Start the trogdor eDP/touchscreen regulator on arm64: dts: qcom: sc7180: Add pazquel360 touschreen .../dts/qcom/sc7180-trogdor-homestar.dtsi | 18 +++++++++++++++++ .../qcom/sc7180-trogdor-parade-ps8640.dtsi | 20 +++++++++++++++++++ .../dts/qcom/sc7180-trogdor-pazquel360.dtsi | 19 ++++++++++++++++++ .../dts/qcom/sc7180-trogdor-ti-sn65dsi86.dtsi | 20 +++++++++++++++++++ arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 10 +++++++++- 5 files changed, 86 insertions(+), 1 deletion(-)