From patchwork Fri Dec 11 17:35:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 342346 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=-18.8 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=ham 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 BB6EBC4361B for ; Fri, 11 Dec 2020 19:22:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 809082405B for ; Fri, 11 Dec 2020 19:22:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405582AbgLKRiR (ORCPT ); Fri, 11 Dec 2020 12:38:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2395343AbgLKRhP (ORCPT ); Fri, 11 Dec 2020 12:37:15 -0500 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9DE8CC0617A7 for ; Fri, 11 Dec 2020 09:36:00 -0800 (PST) Received: by mail-pf1-x444.google.com with SMTP id b26so7418641pfi.3 for ; Fri, 11 Dec 2020 09:36:00 -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=mcajmBZLh3V7JZmymLtTRNiBfRuCQpoxfH0au10GVAI=; b=N1nJjyTFfjMds4zMRb8/0go3TTug2Sh7Q3C6Tky8usTP5ayoupM8fDqupu5p9tAleM mxdLIxY3OqF3lZnhU4xY20iKWCAe+EQEpZ+UC9WMXJC5A7wGYktcR11oTiPhNKvq2veU GJkJ7lJJOraxlZM8crBrbJjJZfnFP48iIIoVQ= 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=mcajmBZLh3V7JZmymLtTRNiBfRuCQpoxfH0au10GVAI=; b=VN6/RXgVyL2z7qUDNMPvdxTR2JHp4PXGFtSgHxvjH2A2l7THrR3hlVpygzhnlxzAAH CKp/dT3Rx7+ah2fpXk/6P1QKA+gdUD6Kzd4CKsy7Ovx9LsF3nNQVNU/YBmH8aNoNQIq9 dU7UId7NsrE6IOspQfA9T6LukDOwae+7GIqhoSF0cb5v2TSdRNQewxkju2yz87405vI7 hb2SrfV4v9U18orjgapdUpPWG5NIIojusKikBiGU3+jaHAXxlN1ubl8sBBdX++u7zwL3 xA9ldl5mdT1vgspWydx8+zHAqc5JktfVeRQH2R5VmhRBzD/eGkTlRfpccULAuTLVoWfK 5Tmw== X-Gm-Message-State: AOAM532N5nuYTaxnxv+h+CfFPOcAqJ/bbajaWdupbkggTbPAHWzwBsL7 ZZIr9Vo0aM4P1wk/FG9IlcDXXg== X-Google-Smtp-Source: ABdhPJwbVKboISP/X6FXJGfRrNYIwh7kNfEkjlT0nINMx6ate+sQAGwmp5PxKqkAY948T8WbAJnN7Q== X-Received: by 2002:a62:2c9:0:b029:19d:d3f7:7dba with SMTP id 192-20020a6202c90000b029019dd3f77dbamr12561187pfc.40.1607708160195; Fri, 11 Dec 2020 09:36:00 -0800 (PST) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:1:42b0:34ff:fe3d:58e6]) by smtp.gmail.com with ESMTPSA id r185sm11402765pfc.53.2020.12.11.09.35.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Dec 2020 09:35:59 -0800 (PST) From: Douglas Anderson To: jkosina@suse.cz, benjamin.tissoires@redhat.com, gregkh@linuxfoundation.org, Dmitry Torokhov Cc: hdegoede@redhat.com, swboyd@chromium.org, robh+dt@kernel.org, linux-input@vger.kernel.org, andrea@borgia.bo.it, kai.heng.feng@canonical.com, Douglas Anderson , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 3/4] dt-bindings: input: HID: i2c-hid: Introduce bindings for the Goodix GT7375P Date: Fri, 11 Dec 2020 09:35:25 -0800 Message-Id: <20201211092956.v7.3.Ibb28033c81d87fcc13a6ba28c6ea7ac154d65f93@changeid> X-Mailer: git-send-email 2.29.2.576.ga3fc446d84-goog In-Reply-To: <20201211173526.1516653-1-dianders@chromium.org> References: <20201211173526.1516653-1-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>; + }; + };