From patchwork Thu Apr 6 22:20:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fred Treven X-Patchwork-Id: 670859 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 39E24C77B6C for ; Thu, 6 Apr 2023 22:20:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230410AbjDFWU1 (ORCPT ); Thu, 6 Apr 2023 18:20:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230311AbjDFWU0 (ORCPT ); Thu, 6 Apr 2023 18:20:26 -0400 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D178CB7; Thu, 6 Apr 2023 15:20:24 -0700 (PDT) Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 336ELPfU025565; Thu, 6 Apr 2023 17:20:21 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=PODMain02222019; bh=LAZYYn6LQbqCkIbcPih7UrJPEovcL14E2ocGUEtKXJo=; b=BPh9I+7meyR69avxecV27H6uBIqFM78sPNT9ENfi5FGUiLkHiBZNlr+vLthHIo71ry0X 1+L6SaKIe4A9xXSPT2YDyKkC0LdYdO405+BZZc62lErV0s78udLVVBV+0Gu0PoyjPC9Z xtrMC5A1OLoxWj0EhP1WgLsQWWEWQb77f5gh9niSOmf74mYMfx+3ItmMb8QzPYsXqCz3 E8f0TNWPBCWqAq+r/TJ40a7IsfWTEErVQvrODvwhFn035Uib9fmbov+LgnFk8OY7Xpz6 lSRMNxB4+nai8FIJWce4YQvlQNKFzoTydMRLF0tHsifU1FLifkOJJid/MmSSSGgkS0kQ LQ== Received: from ausex01.ad.cirrus.com ([141.131.3.19]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3pph1r9v9r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 06 Apr 2023 17:20:20 -0500 Received: from ausex02.ad.cirrus.com (141.131.37.96) by ausex01.ad.cirrus.com (141.131.37.95) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 6 Apr 2023 17:20:20 -0500 Received: from ftrev.crystal.cirrus.com (141.131.38.212) by anon-ausex02.ad.cirrus.com (141.131.37.96) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Thu, 6 Apr 2023 17:20:20 -0500 From: Fred Treven To: , , , , , , , , CC: Fred Treven Subject: [PATCH 2/2] dt-bindings: input: cirrus,cs40l26: Add bindings Date: Thu, 6 Apr 2023 17:20:13 -0500 Message-ID: <1680819613-29256-1-git-send-email-fred.treven@cirrus.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: IBdmHK_zs5ET-5jl22vSb-bY6JDIHBhR X-Proofpoint-GUID: IBdmHK_zs5ET-5jl22vSb-bY6JDIHBhR X-Proofpoint-Spam-Reason: orgsafe Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add devicetree bindings for CS40L26 driver. Signed-off-by: Fred Treven --- .../devicetree/bindings/input/cs40l26.yaml | 92 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 93 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/cs40l26.yaml diff --git a/Documentation/devicetree/bindings/input/cs40l26.yaml b/Documentation/devicetree/bindings/input/cs40l26.yaml new file mode 100644 index 000000000000..1036a374baa0 --- /dev/null +++ b/Documentation/devicetree/bindings/input/cs40l26.yaml @@ -0,0 +1,92 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/cs40l26.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cirrus Logic CS40L26 Boosted Haptic Amplifier + +maintainers: + - Fred Treven + +description: + CS40L26 is a Boosted Haptic Driver with Integrated DSP and Waveform Memory + with Advanced Closed Loop Algorithms and LRA protection + +properties: + compatible: + enum: + - cirrus,cs40l26a + - cirrus,cs40l26b + - cirrus,cs40l27a + - cirrus,cs40l27b + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + description: + Property describing the interrupt line the devices /ALERT pin is connected to. + The device only has one interrupt source. + + VA-supply: + description: Regulator for VA analog voltage + + VP-supply: + description: Regulator for VP peak voltage + + cirrus,bst-ipk-microamp: + description: + Maximum amount of current that can be drawn by the device's boost + converter in uA. Accepted values are between 1600000 uA and 4800000 uA in + 50000 uA increments. + minimum: 1600000 + maximum: 4800000 + default: 4500000 + + cirrus,bst-ctl-microvolt: + description: + Maximum target voltage to which the class H algorithm may increase the + VBST supply, expressed in uV. Valid values range from 2550000 to 11000000 + (inclusive) in steps of 50000. If this value is specified as zero or VP + rises above this value, VBST is bypassed to VP. If this value is omitted, + the maximum target voltage remains at 11 V. + minimum: 2550000 + maximum: 11000000 + default: 11000000 + + cirrus,bst-exploratory-mode-disable: + description: + Disable boost exploratory mode if this boolean is present in the + devicetree. Boost exploratory mode allows the device to overshoot + the set peak current limit. This has potential to damage the boost + inductor. Disabling this mode will prevent this from happening; it will + also prevent the device from detecting boost inductor short errors. + (Default) Enabled + type: boolean + + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + i2c { + cs40l26: cs40l26@58 { + compatible = "cirrus,cs40l26a"; + reg = <0x58>; + interrupt-parent = <&gpio0>; + interrupts = <57 8>; + reset-gpios = <&gpio0 54 0>; + VA-supply = <&dummy_vreg>; + VP-supply = <&dummy_vreg>; + cirrus,bst-ctl-microvolt = <2600000>; // Max boost voltage = 2.6V + cirrus,bst-ipk-microamp = <1650000>; // Max boost current = 1.65A + cirrus,bst-exploratory-mode-disabled; // Disable exploratory mode + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 7051386d5a13..3cd9f0c8e38d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4934,6 +4934,7 @@ L: patches@opensource.cirrus.com S: Supported W: https://github.com/CirrusLogic/linux-drivers/wiki T: git https://github.com/CirrusLogic/linux-drivers.git +F: Documentation/devicetree/bindings/input/cs40l26.yaml F: drivers/input/misc/cs40l* F: include/linux/input/cs40l*