From patchwork Fri Jan 15 17:06:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 364128 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77182C433E0 for ; Fri, 15 Jan 2021 17:08:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 459B7238EF for ; Fri, 15 Jan 2021 17:08:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731151AbhAORIa (ORCPT ); Fri, 15 Jan 2021 12:08:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728314AbhAORI0 (ORCPT ); Fri, 15 Jan 2021 12:08:26 -0500 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9069EC061798 for ; Fri, 15 Jan 2021 09:07:11 -0800 (PST) Received: by mail-pl1-x634.google.com with SMTP id s15so5009655plr.9 for ; Fri, 15 Jan 2021 09:07:11 -0800 (PST) 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=VvtlNUY05ZRZXw1HkORLQwU8MetpDw7Is/Hf+MOi1N8=; b=AfIDkQOnt6kOO2TACfRsIWQjT5bpOShsBMdgrJ55dE8+KG5o2Gb7WSU7jFgiUyz7v+ pqidjVNUwod92goMvJLqWMIfS65ZrrmVwK9KqyqIc1k40v4LWY9Bxp2e0EUHIFyU7knW f0VH+w5k9X2PZ5VKBjGp621dTV1m2leI7ww30= 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=VvtlNUY05ZRZXw1HkORLQwU8MetpDw7Is/Hf+MOi1N8=; b=HKIT8iVLlkGkLHfJf9xRTC8Kogk+A+XLiBR5eIkJd54IKeSaQMqi+x019SM27u6eaS vuSo/0AD8mNBjYjHZOjmOu7zfTAMUFhs3Jhi79Bf1oTtndOUB8NCYL8nD267Uc0GA3++ eM/ZlrX+YW5WIHYo+/h6kocCdw05I6Q0ywWsUl25/nZanSlJVNMw7bCOMgo8RnvO1IrX dqYAfaJyu3mUl9Kd0zV3zcLzOEYyUv0yBLUJVjhRhH8AXcdc+QnIzigVtRoh8T41P1tI sMMlDav9iZM8J1yGg0cB54SDrz8SCVGWncXLkIgvBzHrqG3ejtLE2Z2D3OPUCvLX6nV4 snuw== X-Gm-Message-State: AOAM533isDlcBEuZ3gRAuS3BB7OcK23Qer8XQlDt7wYHPKTkyK+z7ZAg ++RsfXLnM+l8BjBzd7H/jgaSog== X-Google-Smtp-Source: ABdhPJyFtWNYz1haJTm7CHTsmdWi6mAz16QXK0dcJU/2QxgPESAqU3D2/r7Ut9q0pMXQpc8FGma+Dw== X-Received: by 2002:a17:90a:1057:: with SMTP id y23mr11352188pjd.97.1610730431157; Fri, 15 Jan 2021 09:07:11 -0800 (PST) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:1:42b0:34ff:fe3d:58e6]) by smtp.gmail.com with ESMTPSA id t23sm8813329pfc.0.2021.01.15.09.07.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Jan 2021 09:07:10 -0800 (PST) From: Douglas Anderson To: jkosina@suse.cz, benjamin.tissoires@redhat.com, gregkh@linuxfoundation.org, Dmitry Torokhov Cc: swboyd@chromium.org, linux-input@vger.kernel.org, hdegoede@redhat.com, andrea@borgia.bo.it, kai.heng.feng@canonical.com, robh+dt@kernel.org, Douglas Anderson , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v9 3/4] dt-bindings: input: HID: i2c-hid: Introduce bindings for the Goodix GT7375P Date: Fri, 15 Jan 2021 09:06:39 -0800 Message-Id: <20210115090518.v9.3.Ibb28033c81d87fcc13a6ba28c6ea7ac154d65f93@changeid> X-Mailer: git-send-email 2.30.0.284.gd98b1dd5eaa7-goog In-Reply-To: <20210115170641.903392-1-dianders@chromium.org> References: <20210115170641.903392-1-dianders@chromium.org> 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's communications are based on the generic "i2c-over-hid" protocol, it needs special power sequencing and thus gets its own compatible and bindings. Signed-off-by: Douglas Anderson Reviewed-by: Rob Herring --- (no changes since v5) Changes in v5: - Added mention of i2c-hid in the yaml itself as per Rob. - Adjusted subject as per Rob. Changes in v3: - Fixed compatible in example. - Removed Benjamin as a maintainer. - Updated description. Changes in v2: - ("dt-bindings: HID: i2c-hid: Introduce bindings for the Goodix GT7375P") new in v2. .../bindings/input/goodix,gt7375p.yaml | 65 +++++++++++++++++++ 1 file changed, 65 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..fe1c5016f7f3 --- /dev/null +++ b/Documentation/devicetree/bindings/input/goodix,gt7375p.yaml @@ -0,0 +1,65 @@ +# 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: + - Douglas Anderson + +description: + Supports the Goodix GT7375P touchscreen. + This touchscreen uses the i2c-hid protocol but has some non-standard + power sequencing required. + +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 = "goodix,gt7375p"; + reg = <0x5d>; + + interrupt-parent = <&tlmm>; + interrupts = <9 IRQ_TYPE_LEVEL_LOW>; + + reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>; + vdd-supply = <&pp3300_ts>; + }; + };