From patchwork Fri Oct 23 23:22:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 11854649 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E835E1744 for ; Fri, 23 Oct 2020 23:23:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C7D472137B for ; Fri, 23 Oct 2020 23:23:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="mp/78y+G" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758582AbgJWXX2 (ORCPT ); Fri, 23 Oct 2020 19:23:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758578AbgJWXX2 (ORCPT ); Fri, 23 Oct 2020 19:23:28 -0400 Received: from mail-pg1-x542.google.com (mail-pg1-x542.google.com [IPv6:2607:f8b0:4864:20::542]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D240EC0613D5 for ; Fri, 23 Oct 2020 16:23:27 -0700 (PDT) Received: by mail-pg1-x542.google.com with SMTP id r10so2520828pgb.10 for ; Fri, 23 Oct 2020 16:23:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=d8xAtwDVMhNalLtWYZPCO9wz9pojtecxgYkkAm7a2YE=; b=mp/78y+GJ0rc6wdkGEh20lyDMfXAtkv4947P3Lkr8AilrLo9WP0oBIeknsHvQAe0el HEcgpmS7KrMrOHe9XqHuqCHhRnQy2hZnwyDji2aXxGt8lRYiA+RCr4HDTDe3/WMb5AmO wEuDDF+XTo2+MHfz9KDQBACMF+CVBN+1nmVWQ= 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:mime-version:content-transfer-encoding; bh=d8xAtwDVMhNalLtWYZPCO9wz9pojtecxgYkkAm7a2YE=; b=CQ0iaTcqMx0OYGdBb3+MqBjyPu16V0mtnFtAey0ew8gn3jUdnoC8y+4AXfwQqxIlMK 3zxbv+8KKuboB5ZjYrdhSsBciIvZ5jvhgm9190T+BPE+X8/jQHbxqHwSwnf3RDxnHWIn a7BrVQU4EYaqQzx33QJJ1X41IKVm4fnzhnF44RklNrejpoS02+WFlzkFEklpsG01vcRx yrVpcKaewjBXHDufjOf01j6HR+7JO4aJ69uVvs++mL81LcpsN7J3MLzy8ndk6DVdierU Wkyjhn6+gwzQHCOsLGzbbw3b2tk8UIolvppnCuusV9nJV9ZNGzBY3zc7vPcsU+xubqaV 3n8A== X-Gm-Message-State: AOAM531Y3sdUDFmBvgGQ1y15SqCz51AFM8Jjk3n4W5jtJ+5H08qr1tVM bDbaEOJWKOYvCLQFv+L+LYw8ew== X-Google-Smtp-Source: ABdhPJx1sO6DuIlMnW+hVd4EBOhapt9SdD8UJIqqO1NSna53HQ08BKrQi3asON0KdwrvPVKG6PMS1w== X-Received: by 2002:a63:c55:: with SMTP id 21mr3663254pgm.392.1603495407402; Fri, 23 Oct 2020 16:23:27 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:1:42b0:34ff:fe3d:58e6]) by smtp.gmail.com with ESMTPSA id v17sm3789476pjy.40.2020.10.23.16.23.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Oct 2020 16:23:26 -0700 (PDT) From: Douglas Anderson To: jkosina@suse.cz, benjamin.tissoires@redhat.com, gregkh@linuxfoundation.org Cc: andrea@borgia.bo.it, kai.heng.feng@canonical.com, linux-input@vger.kernel.org, swboyd@chromium.org, hdegoede@redhat.com, Douglas Anderson , Dmitry Torokhov , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/3] dt-bindings: HID: i2c-hid: Introduce bindings for the Goodix GT7375P Date: Fri, 23 Oct 2020 16:22:53 -0700 Message-Id: <20201023162220.v2.2.Ibb28033c81d87fcc13a6ba28c6ea7ac154d65f93@changeid> X-Mailer: git-send-email 2.29.0.rc1.297.gfa9743e501-goog In-Reply-To: <20201023162220.v2.1.I45b53fe84e2215946f900f5b28bab1aa9d029ac7@changeid> References: <20201023162220.v2.1.I45b53fe84e2215946f900f5b28bab1aa9d029ac7@changeid> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org This adds new bindings for the Goodix GT7375P touchscreen. While this touchscreen works with generic "i2c-over-hid", the current advice is to give it its own compatible string. The cleanest way to do this is to give it its own bindings. Among other things, this has the advantage that we can list the two possible i2c addresses for this device, which gives extra checking. Signed-off-by: Douglas Anderson --- Changes in v2: - ("dt-bindings: HID: i2c-hid: Introduce bindings for the Goodix GT7375P") new in v2. .../bindings/input/goodix,gt7375p.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/goodix,gt7375p.yaml diff --git a/Documentation/devicetree/bindings/input/goodix,gt7375p.yaml b/Documentation/devicetree/bindings/input/goodix,gt7375p.yaml new file mode 100644 index 000000000000..b5008f89e26c --- /dev/null +++ b/Documentation/devicetree/bindings/input/goodix,gt7375p.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/goodix,gt7375p.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Goodix GT7375P touchscreen + +maintainers: + - Benjamin Tissoires + - Douglas Anderson + +description: + Supports the Goodix GT7375P touchscreen. + +properties: + compatible: + items: + - const: goodix,gt7375p + + reg: + enum: + - 0x5d + - 0x14 + + interrupts: + maxItems: 1 + + reset-gpios: + true + + vdd-supply: + description: The 3.3V supply to the touchscreen. + +required: + - compatible + - reg + - interrupts + - reset-gpios + - vdd-supply + +additionalProperties: false + +examples: + - | + #include + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + ap_ts: touchscreen@5d { + compatible = "hid-over-i2c"; + reg = <0x5d>; + + interrupt-parent = <&tlmm>; + interrupts = <9 IRQ_TYPE_LEVEL_LOW>; + + reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>; + vdd-supply = <&pp3300_ts>; + }; + };