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[2620:137:e000::1:20]) by mx.google.com with ESMTP id w8-20020a170902e88800b001b8c4168e20si3398569plg.58.2023.08.07.00.00.24; Mon, 07 Aug 2023 00:00:38 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231254AbjHGG3d (ORCPT + 99 others); Mon, 7 Aug 2023 02:29:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231290AbjHGG3X (ORCPT ); Mon, 7 Aug 2023 02:29:23 -0400 Received: from mg.richtek.com (mg.richtek.com [220.130.44.152]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 596E51FDF; Sun, 6 Aug 2023 23:28:54 -0700 (PDT) X-MailGates: (SIP:2,PASS,NONE)(compute_score:DELIVER,40,3) Received: from 192.168.10.47 by mg.richtek.com with MailGates ESMTPS Server V6.0(3962136:0:AUTH_RELAY) (envelope-from ) (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256/256); Mon, 07 Aug 2023 14:28:11 +0800 (CST) Received: from ex3.rt.l (192.168.10.46) by ex4.rt.l (192.168.10.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Mon, 7 Aug 2023 14:28:11 +0800 Received: from linuxcarl2.richtek.com (192.168.10.154) by ex3.rt.l (192.168.10.45) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Mon, 7 Aug 2023 14:28:11 +0800 From: Alina Yu To: , , , , CC: , , Subject: [PATCH v7 1/2] regulator: dt-bindings: rtq2208: Add Richtek RTQ2208 SubPMIC Date: Mon, 7 Aug 2023 14:28:06 +0800 Message-ID: <1691389687-31211-2-git-send-email-alina_yu@richtek.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1691389687-31211-1-git-send-email-alina_yu@richtek.com> References: <1691389687-31211-1-git-send-email-alina_yu@richtek.com> MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1773552678507802756 X-GMAIL-MSGID: 1773552678507802756 Add bindings for Richtek RTQ2208 IC controlled SubPMIC Signed-off-by: Alina Yu Reviewed-by: Krzysztof Kozlowski --- v6 - Add "additionalProperties: false" to regulator node v5 - Revise filename from $id - Remove "regulator-compatible" for ldos - Add missing "high" for "richtek,mtp-sel-high" - Remove "regulator-mode" property - Add and modify "unevaluatedProperties: false" and "additionalProperties: false" - Remove "richtek,fixed-uV" - Remove redundant space in "buck-a" and "ldo2" v4 - Modify filename to "richtek,rtq2208" - Add more desciptions for "regulator-allowed-modes" --- .../bindings/regulator/richtek,rtq2208.yaml | 197 +++++++++++++++++++++ 1 file changed, 197 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml diff --git a/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml b/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml new file mode 100644 index 0000000..609c066 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml @@ -0,0 +1,197 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/richtek,rtq2208.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Richtek RTQ2208 SubPMIC Regulator + +maintainers: + - Alina Yu + +description: | + RTQ2208 is a highly integrated power converter that offers functional safety dual + multi-configurable synchronous buck converters and two LDOs. + + Bucks support "regulator-allowed-modes" and "regulator-mode". The former defines the permitted + switching operation in normal mode; the latter defines the operation in suspend to RAM mode. + + No matter the RTQ2208 is configured to normal or suspend to RAM mode, there are two switching + operation modes for all buck rails, automatic power saving mode (Auto mode) and forced continuous + conduction mode (FCCM). + + The definition of modes is in the datasheet which is available in below link + and their meaning is:: + 0 - Auto mode for power saving, which reducing the switching frequency at light load condition + to maintain high frequency. + 1 - FCCM to meet the strict voltage regulation accuracy, which keeping constant switching frequency. + + Datasheet will be available soon at + https://www.richtek.com/assets/Products + +properties: + compatible: + enum: + - richtek,rtq2208 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + richtek,mtp-sel-high: + type: boolean + description: + vout register selection based on this boolean value. + false - Using DVS0 register setting to adjust vout + true - Using DVS1 register setting to adjust vout + + regulators: + type: object + additionalProperties: false + + patternProperties: + "^buck-[a-h]$": + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + description: + description for buck-[a-h] regulator. + + properties: + regulator-allowed-modes: + description: + two buck modes in different switching accuracy. + 0 - Auto mode + 1 - FCCM + items: + enum: [0, 1] + + "^ldo[1-2]$": + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + description: + regulator description for ldo[1-2]. + +required: + - compatible + - reg + - regulators + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pmic@10 { + compatible = "richtek,rtq2208"; + reg = <0x10>; + interrupts-extended = <&gpio26 0 IRQ_TYPE_LEVEL_LOW>; + richtek,mtp-sel-high; + + regulators { + buck-a { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <2050000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <1>; + }; + }; + buck-b { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <2050000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <1>; + }; + }; + buck-c { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <2050000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <1>; + }; + }; + buck-d { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <2050000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <1>; + }; + }; + buck-e { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <2050000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <1>; + }; + }; + buck-f { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <2050000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <1>; + }; + }; + buck-g { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <2050000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <1>; + }; + }; + buck-h { + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <2050000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <1>; + }; + }; + ldo1 { + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + ldo2 { + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + }; + }; + };