From patchwork Tue Nov 26 20:47:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein via B4 Relay X-Patchwork-Id: 13886354 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C9FD1DE894; Tue, 26 Nov 2024 20:48:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732654094; cv=none; b=dw03nrOroGeRj1sduec2WrPzYEo5Ixw2xHzfjblUW3sVrlxAkkxzyBCSHh8iYeUkqpLBUY5iv94VpuF2PubZkYfeAioLXwaqfF5Pi4mHlQqM4dEBuw2E1UBIyrgC/TCAleXFnwPBSaRuIObGMSYFU2douBTulc5SnIPQlRJ42xU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732654094; c=relaxed/simple; bh=nPlVVBDGKjV5+b5plwup/oaCwem/vGJJlIuA9WfZlTQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=u06sTQD1TTv93mUwSryC0BXSyXW/m0EtVU+A2fJOL+WHHICjTch12fOyd1jGuP2QkLFBf7yAQ23O/TLc7djNM8L5SvxovJZG0i3oXpG8xvD+6YJ5iRxfPc3YxrF14S3d+uIVf4s1f5fMwJ8QKasD7375m56x0ql0S9iHWHsPxdY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=p375jSE/; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="p375jSE/" Received: by smtp.kernel.org (Postfix) with ESMTPS id B69C5C4CED0; Tue, 26 Nov 2024 20:48:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732654093; bh=nPlVVBDGKjV5+b5plwup/oaCwem/vGJJlIuA9WfZlTQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=p375jSE/nhXtMxzvEOS9mugsU2ApN2vVdpuN9R4/WGM07+3cDR4KMSZ1FHNvh1/8L mGU4Yk19FQw3WXOe9K4jdRKyYJqPNlB507wa57oOxm8xes2D0Bn5XIpd//ZpRvDvTK J9k4ZSuTPm2L9ZKhturx9xqqP9qtJbEqZjWtueQQA9dfChBzOi1FhhsZyJwaPNFzEx G5uPkfjBD4ClIrN2Tk7Xq4z/yUDDhmRqKJbnNaeHWXNFyS8ZW1bmlZrEmeKbxV52EC ZAGTz3cNm+KE080l7XHoANzMB7xnijTu5TsR2I8caY3/PaOZZHNcwWpkB9FprjkTnY J6Yd/ECCPBP0g== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4BD0D65553; Tue, 26 Nov 2024 20:48:13 +0000 (UTC) From: Sasha Finkelstein via B4 Relay Date: Tue, 26 Nov 2024 21:47:59 +0100 Subject: [PATCH 1/4] dt-bindings: input: touchscreen: Add Z2 controller Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241126-z2-v1-1-c43c4cc6200d@gmail.com> References: <20241126-z2-v1-0-c43c4cc6200d@gmail.com> In-Reply-To: <20241126-z2-v1-0-c43c4cc6200d@gmail.com> To: Hector Martin , Sven Peter , Alyssa Rosenzweig , Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Henrik Rydberg Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sasha Finkelstein X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1732654092; l=2804; i=fnkl.kernel@gmail.com; s=20241124; h=from:subject:message-id; bh=UHvXgMi/23w7qON+PGUGo++6lr9MH2GBkiekDOSsTok=; b=v2an5Zj1C0uzlwCBhHF2ZQWwt6rSGPADVo45ZAjcVatoE2WRViXstwZvsJUf7P6F9MtmnBKza 2GOjGYozUJwDVOHKJNJtRTlkyNCJtsYdABKic9dSMOvOWgu8iwJqldS X-Developer-Key: i=fnkl.kernel@gmail.com; a=ed25519; pk=aSkp1PdZ+eF4jpMO6oLvz/YfT5XkBUneWwyhQrOgmsU= X-Endpoint-Received: by B4 Relay for fnkl.kernel@gmail.com/20241124 with auth_id=283 X-Original-From: Sasha Finkelstein Reply-To: fnkl.kernel@gmail.com From: Sasha Finkelstein Add bindings for touchscreen controllers attached using the Z2 protocol. Those are present in most Apple devices. Signed-off-by: Sasha Finkelstein --- .../input/touchscreen/apple,z2-multitouch.yaml | 83 ++++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/Documentation/devicetree/bindings/input/touchscreen/apple,z2-multitouch.yaml b/Documentation/devicetree/bindings/input/touchscreen/apple,z2-multitouch.yaml new file mode 100644 index 0000000000000000000000000000000000000000..0387e2178b91d5658dfd60cb44099a8048dc97df --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/apple,z2-multitouch.yaml @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/touchscreen/apple,z2-multitouch.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple touchscreens attached using the Z2 protocol + +maintainers: + - Sasha Finkelstein + +description: A series of touschscreen controllers used in Apple products + +allOf: + - $ref: touchscreen.yaml# + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +properties: + compatible: + items: + - enum: + - apple,j293-touchbar + - apple,j493-touchbar + - const: apple,z2-touchbar + - const: apple,z2-multitouch + + interrupts: + maxItems: 1 + + reset-gpios: + maxItems: 1 + + cs-gpios: + maxItems: 1 + description: | + J293 has a hardware quirk where the CS line is unusable and has + to the be driven by a GPIO pin instead + + firmware-name: + maxItems: 1 + + label: + maxItems: 1 + + touchscreen-size-x: true + touchscreen-size-y: true + +required: + - compatible + - interrupts + - reset-gpios + - firmware-name + - label + - touchscreen-size-x + - touchscreen-size-y + +unevaluatedProperties: false + +examples: + - | + #include + #include + + spi { + #address-cells = <1>; + #size-cells = <0>; + + touchscreen@0 { + compatible = "apple,j293-touchbar", "apple,z2-touchbar", + "apple,z2-multitouch"; + reg = <0>; + spi-max-frequency = <11500000>; + reset-gpios = <&pinctrl_ap 139 0>; + cs-gpios = <&pinctrl_ap 109 0>; + interrupts-extended = <&pinctrl_ap 194 IRQ_TYPE_EDGE_FALLING>; + firmware-name = "apple/dfrmtfw-j293.bin"; + touchscreen-size-x = <23045>; + touchscreen-size-y = <640>; + label = "MacBookPro17,1 Touch Bar"; + }; + }; + +...