From patchwork Fri Dec 9 02:06:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 13069164 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 BB4C3C4332F for ; Fri, 9 Dec 2022 02:06:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230102AbiLICG3 (ORCPT ); Thu, 8 Dec 2022 21:06:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36410 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229779AbiLICG1 (ORCPT ); Thu, 8 Dec 2022 21:06:27 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4FAF7D07E for ; Thu, 8 Dec 2022 18:06:26 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id b13-20020a17090a5a0d00b0021906102d05so3441512pjd.5 for ; Thu, 08 Dec 2022 18:06:26 -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=FS1or+ESDzH1o6ptNvHwAIRTD0TlQD7xITLX41K53Jg=; b=bg0AHeRjVkHV4Ayw7htxZ+TvjKtKgD6b29SnzACkNPnoYgwu42MecOxPDbxuOmO5mF z9SXrH91PAK5dJs7P+KZTTbffBSyTau9vlEaxQuGsphp2feedVLOnkD1/NU12Srf1tGG P8a707xGeo0i/xRyrg46TgNSeeE2Cgs2Gwp2k= 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=FS1or+ESDzH1o6ptNvHwAIRTD0TlQD7xITLX41K53Jg=; b=mGCUq71hImR7VfeUToW/h7biifmXSmvi4x2P14DnbnUW6VlR0PBUEWw8FZyHSiZYst UYbr74KTGmF/UNEfH3ZZU/hc28XsjOROjHCGZdVSfWaFzJMzebsQBnOjIxSGB+/OIVzM RGaL/4/qA6cyzLT5D/CEj/SSsssM+qN/pTi0rQsTvunhh8MbOd/e0kvv0ttt0dYsXQpZ ZVvHG8tQD7S4GJ45ltIcU6tLh7ZxmXFOHDsRPmQtHtVennSXXDdi/hSbas7UhKv/BYv6 lZ+9rTnLEZzT3y2m670QS1xC04BiNiJZean2bXAlDy90M2bTQ+VxAJJVXcT26sOK0f8o cr2g== X-Gm-Message-State: ANoB5pkUBt0pu79FzeOFKM2WZGdvB6xB1gtpc3ijqUmXfFVEoXJacriU vtUylC3BlVhWiS86GNaBFcTBUg== X-Google-Smtp-Source: AA0mqf5cZ+ajHa2LZIGsjgn7Kfhiu0E+xom3phksHn7SWU30IPZvQjh/pHJEKH32eNqvWsl8Iy8sSg== X-Received: by 2002:a05:6a20:1010:b0:a2:ed21:d820 with SMTP id a16-20020a056a20101000b000a2ed21d820mr7037169pzd.42.1670551586213; Thu, 08 Dec 2022 18:06:26 -0800 (PST) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:9a82:7898:7bf4:b4f]) by smtp.gmail.com with ESMTPSA id h3-20020a17090a648300b00218ddc8048bsm233473pjj.34.2022.12.08.18.06.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Dec 2022 18:06:25 -0800 (PST) From: Douglas Anderson To: Bjorn Andersson , Dmitry Torokhov Cc: linux-arm-msm@vger.kernel.org, mka@chromium.org, Yunlong Jia , Konrad Dybcio , linux-input@vger.kernel.org, swboyd@chromium.org, Douglas Anderson , Andy Gross , Johnny Chuang , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/5] arm64: dts: qcom: sc7180: Make pazquel360's touchscreen work Date: Thu, 8 Dec 2022 18:06:07 -0800 Message-Id: <20221209020612.1303267-1-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-input@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. 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. This series is mostly device tree changes with one more change to the Elan driver. They are fine to land in separate trees. 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 is 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 v2: - Fix typo in commit message (Matthias) - Fix typo in commit message (Matthias) - udelay -> usleep_range (Patches Robot, Dmitry) Douglas Anderson (5): 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 Input: elants_i2c: Delay longer with reset asserted .../dts/qcom/sc7180-trogdor-homestar.dtsi | 18 ++++++++++++++++ .../qcom/sc7180-trogdor-parade-ps8640.dtsi | 20 ++++++++++++++++++ .../dts/qcom/sc7180-trogdor-pazquel360.dtsi | 21 +++++++++++++++++++ .../dts/qcom/sc7180-trogdor-ti-sn65dsi86.dtsi | 20 ++++++++++++++++++ arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 10 ++++++++- drivers/input/touchscreen/elants_i2c.c | 4 ++-- 6 files changed, 90 insertions(+), 3 deletions(-)