From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f48.google.com (mail-ej1-f48.google.com [209.85.218.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 54CFC2F1FDE for ; Sun, 3 May 2026 16:52:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.48 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777827182; cv=none; b=rztjCgCRAcuw+n1+3KBMMEJ6/MMlGZ1ypUSOlPSZzT5zGhK11Ttn8nxjCCNF4GsOvr2AYOQeDqTNF7keR1QRVctOCoFxRwahtkaP6TS/QJwqSArYe/hOX8NK5cETfyvEorltz02eNkrPZxs2flHORVHfAVtB7g65SOWQtTf4HFQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777827182; c=relaxed/simple; bh=a8DDUbGKi4KbjMV3e+HbsPy4j0FsEQ2efqEYjbF/y8s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IM3/vEUHQmnTNVguJmFPDpYp2wUAVzhm9Bgdag9WNMpbwBEEKIjj3k3WgvYx6KBwFZ9MBAlNzOBcf74X/dChPBjTtPfv4L23WDj0cj9PqRYF2HXkHjPFvt8wfZIQojBAdcsuc35vD5Rr5ICj4xqOXlbBitTMOppwby73b5Wtm6A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=nXzoqrbK; arc=none smtp.client-ip=209.85.218.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nXzoqrbK" Received: by mail-ej1-f48.google.com with SMTP id a640c23a62f3a-bc1f3a393c0so37243466b.0 for ; Sun, 03 May 2026 09:52:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1777827173; x=1778431973; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=tQY9b9kLzwLVCnnN7VEZw07BRk2Ugr4r9Iyui3/2atE=; b=nXzoqrbKeazpalkf6bard9fkpZCr2La6Wxtomb0DBOhEDzvpi9jUWM1XDCOVQwU7fx CfU9+Lu4t8dkQUnBAUyZ+35fNgKEGcod30gMh1pYhXWqZ9H4nYDQZDNqZopXk1vC3kOa 0QhBiKUQjUujXXurfW/RosMNu/D6Y1pF8aMJnI4II9UpqBxnXXf7Emgk4YZ5VLO7V1FD EOecFeEEn2LVzuDrnTSJx9xf/ihguSVS2Cni+BSkqg86G8wOQJyPhg/+/ksNBfs+t41V MtfOSsQEG2bQBUEP+bZIH4UQM7sf9LZ4NedvjQ9xFyXrezYxmQUB536d1UquKMt2KYfs Q+WQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777827173; x=1778431973; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=tQY9b9kLzwLVCnnN7VEZw07BRk2Ugr4r9Iyui3/2atE=; b=QJVUjjVU1w7pO+AdZ/+vwrnS9TJEIoSxjd1el2cinMwFMabm2OD/TM5kNp9Ly39Jmn y+vC9iOiTA+9phbpzoaQbUODKyqG6EOCmTQEBlNSfiHoszwalOwYpWwGQhuFYlKPTnDy s9nIPDY/mCR+AD8n3mxV5VwyQNpCkeargYbTJFTBIapknj9YW0xwJxI2IU4W7CV6YSRN msagV3qE/Zgv/rfrkynB44NF1U4ln7UNlSQwe0pCuRV5YSlAUS0Gcy7kLXvnXtYbSPzY QIC+0jGIburhJORvhhgFR/teEhLl2oAamWGpa4Xdu9s2KKPhOiODU2rElClJXEP1+XDp 1XDA== X-Forwarded-Encrypted: i=1; AFNElJ+6zZbzS58BuqnajWD74/f8W1mmKJ5odiVv00ML7I6zeAoGA+vmiSkmLNiME+AfZEw5raHWKnsZ1YqlZVg=@vger.kernel.org X-Gm-Message-State: AOJu0Ywd4w0mKcC4dmM08Xhw6V9tLHfatIWHixfnZTx8OlCwQ7IAByDc LRAI11Z3ByJH1fOupWl995nhCCf9T5qruq90/9OASvepVVya+ODaRHgd X-Gm-Gg: AeBDieueyquMQyiDnS2Rf7Qag49CJTaDL8leF519hm67LYrKEEELqJTys5dU3P4eDY/ Da4PXq4iAJWroecsacSkQOV0iwpN/hl3IyseXTOXkL41r0pN4Pl8xQVgbjpNkgmjXIKy6UN3Kuk nPYHiVhDeteKXMWqtFuUBdRW1LIU6k3/4DjJ+X8xa1SHdbMS+KwCgwyHz2sqovsfCbmn/5c0ClN 3sM1Uyj/DdAHCi5keRUYM2jh5GQO5BYETk1FGVNb/FWQnP3KJz7Q/kWx8elQXY1YoN21TEvnOe9 KH+SMMJpHqh2FkYtknhSZYI/WKI19eRM5ta1z65bVOPOZCHzKTU5wt4utYojxJawt4BJRftRnFE tHPBVawo3PIObQyWgabS95a/3Z1QbZs+L43qmXfdcVwjevy6X0dI1dKS0CR0v23zHmBMQeB5F1Y zlA1o4i9UZCYBsA6+snZxQ2QpyMLClnKKBjw== X-Received: by 2002:a17:907:25c6:b0:bbe:7709:5a8c with SMTP id a640c23a62f3a-bbff8ed4865mr297216666b.1.1777827173127; Sun, 03 May 2026 09:52:53 -0700 (PDT) Received: from xeon ([188.163.112.56]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bbe69f6b7f6sm316772566b.3.2026.05.03.09.52.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 03 May 2026 09:52:52 -0700 (PDT) From: Svyatoslav Ryhel To: Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Svyatoslav Ryhel Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] dt-bindings: input: Document Imagis ISA1200 haptic motor driver Date: Sun, 3 May 2026 19:52:42 +0300 Message-ID: <20260503165243.215979-2-clamor95@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260503165243.215979-1-clamor95@gmail.com> References: <20260503165243.215979-1-clamor95@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Document the Imagis ISA1200 haptic motor driver, used primarily in mobile handheld devices and capable of supporting up to two motors. The exact datasheet for the ISA1200 is not available; all data was modeled based on available downstream kernel sources for various devices and fragments of information scattered across the internet. Tested-by: Linus Walleij # Samsung GT-I9070 Janice Signed-off-by: Svyatoslav Ryhel --- .../bindings/input/imagis,isa1200.yaml | 140 ++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/imagis,isa1200.yaml diff --git a/Documentation/devicetree/bindings/input/imagis,isa1200.yaml b/Documentation/devicetree/bindings/input/imagis,isa1200.yaml new file mode 100644 index 000000000000..bbe6f99d39c1 --- /dev/null +++ b/Documentation/devicetree/bindings/input/imagis,isa1200.yaml @@ -0,0 +1,140 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/imagis,isa1200.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Imagis ISA1200 haptic motor driver + +maintainers: + - Svyatoslav Ryhel + - Linus Walleij + +description: + The ISA1200 is a high-performance enhanced haptic motor driver designed + for mobile hand-held devices. It supports various voltages for both ERM + (Eccentric Rotating Mass) and LRA (Linear Resonant Actuator) type + actuators. Thanks to an embedded LDO, battery power can be used directly + in handheld applications. + +properties: + compatible: + const: imagis,isa1200 + + reg: + maxItems: 1 + + control-gpios: + description: + One or two GPIOs flagged as active high linked to HEN and LEN pins + maxItems: 2 + + clocks: + maxItems: 1 + + pwms: + maxItems: 1 + + vdd-supply: + description: + Regulator for 2.4V - 5.5V power supply + + vddp-supply: + description: + Regulator for 2.4V - 3.6V IO power supply + + imagis,clk-div: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Divider for the external input clock/PWM + enum: [128, 256, 512, 1024] + default: 128 + + imagis,pll-div: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Divider for the internal PLL clock + minimum: 1 + maximum: 15 + default: 1 + + imagis,mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Defines the motor type isa1200 drives + 0 - LRA (Linear Resonant Actuator) + 1 - ERM (Eccentric Rotating Mass) + enum: [0, 1] + default: 0 + + imagis,period-ns: + description: + Period of the internal PWM channel in nanoseconds. + minimum: 10000 + maximum: 30000 + + imagis,duty-cycle-ns: + description: + Duty cycle of the external/internal PWM channel in nanoseconds, + defaults to 50% of the channel's period + + ldo: + $ref: /schemas/regulator/regulator.yaml# + type: object + description: + Embedded LDO regulator with voltage range 2.3V - 3.8V + unevaluatedProperties: false + + required: + - regulator-min-microvolt + - regulator-max-microvolt + +required: + - compatible + - reg + - ldo + +anyOf: + - required: + - clocks + - imagis,period-ns + - required: + - pwms + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + haptic-engine@49 { + compatible = "imagis,isa1200"; + reg = <0x49>; + + clocks = <&isa1200_refclk>; + + control-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>, + <&gpio 23 GPIO_ACTIVE_HIGH>; + + vdd-supply = <&vdd_3v3_vbat>; + vddp-supply = <&vdd_2v8_vvib>; + + imagis,clk-div = <256>; + imagis,pll-div = <2>; + + imagis,mode = <0>; /* LRA_MODE */ + + imagis,period-ns = <13400>; + imagis,duty-cycle-ns = <100>; + + ldo { + regulator-name = "vdd_vib"; + regulator-min-microvolt = <2300000>; + regulator-max-microvolt = <2300000>; + }; + }; + }; -- 2.51.0