From patchwork Fri Nov 19 09:42:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Satya Priya Kakitapalli (Temp)" X-Patchwork-Id: 12628571 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83281C433EF for ; Fri, 19 Nov 2021 09:43:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 661C961B7D for ; Fri, 19 Nov 2021 09:43:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234574AbhKSJqL (ORCPT ); Fri, 19 Nov 2021 04:46:11 -0500 Received: from alexa-out-sd-02.qualcomm.com ([199.106.114.39]:18892 "EHLO alexa-out-sd-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234588AbhKSJqL (ORCPT ); Fri, 19 Nov 2021 04:46:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1637314989; x=1668850989; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=yo4mjE0N6Mc1vvj8+tfPuqf9+Q2K7nHzoBTKE2y475Q=; b=OmTiERF1VIKpIA5oHyL7g/oUMJ7buVMCUAIS362Dw/BJkpXAvkn/yOqD tGfJlDMBrTBSk69Vg+LHHIWh8Z2XAbuk+P5CQo2uTw4XU5LTy4/HiMJ3d Un91Dy1YZajuX34k3f2OKiSdd4Nw4sY1+d+2ukiJC70k8aSGSM64VZm2O 0=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-02.qualcomm.com with ESMTP; 19 Nov 2021 01:43:09 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg-SD-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 01:43:09 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:09 -0800 Received: from c-skakit-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:04 -0800 From: Satya Priya To: Bjorn Andersson , Rob Herring CC: Liam Girdwood , Mark Brown , , , , Das Srinagesh , , "Lee Jones" , , , Satya Priya Subject: [PATCH V4 1/6] dt-bindings: regulator: Add "regulator-min-dropout-voltage-microvolt" Date: Fri, 19 Nov 2021 15:12:28 +0530 Message-ID: <1637314953-4215-2-git-send-email-quic_c_skakit@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> References: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add "regulator-min-dropout-voltage-microvolt" property. Signed-off-by: Satya Priya --- Changes in V4: - This is newly added in V4. Documentation/devicetree/bindings/regulator/regulator.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/regulator.yaml b/Documentation/devicetree/bindings/regulator/regulator.yaml index a6ae9ec..fdb37d3 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.yaml +++ b/Documentation/devicetree/bindings/regulator/regulator.yaml @@ -224,6 +224,10 @@ properties: description: Maximum difference between current and target voltages that can be changed safely in a single step. + regulator-min-dropout-voltage-microvolt: + description: Specifies the minimum voltage in microvolts that the + parent supply regulator must output, above the output of this regulator. + patternProperties: ".*-supply$": description: Input supply phandle(s) for this node From patchwork Fri Nov 19 09:42:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Satya Priya Kakitapalli (Temp)" X-Patchwork-Id: 12628573 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C529C433EF for ; Fri, 19 Nov 2021 09:43:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 023C461B97 for ; Fri, 19 Nov 2021 09:43:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234593AbhKSJqU (ORCPT ); Fri, 19 Nov 2021 04:46:20 -0500 Received: from alexa-out.qualcomm.com ([129.46.98.28]:9079 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234511AbhKSJqR (ORCPT ); Fri, 19 Nov 2021 04:46:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1637314996; x=1668850996; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=BcplSZiXO69TfrBfgwdkyGUDoJG/hLdly04h+Z6mP/M=; b=dz6goQerYU58KHbg1+D9lqsWV+u++P/opvZ/tYZLTTlC4u6EOzbJ12V5 wFWbhLi7TwY6pwhh3gT+KSagazHtda3dGOR7E84Bhj9fM3/cson+Gn24p DaVl68npqdU7paBzw/L/SkTVjuaqfjt+lqMeEMXiYQ7YXQ15EoLDhUkBs 0=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 19 Nov 2021 01:43:14 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 01:43:14 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:13 -0800 Received: from c-skakit-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:09 -0800 From: Satya Priya To: Bjorn Andersson , Rob Herring CC: Liam Girdwood , Mark Brown , , , , Das Srinagesh , , "Lee Jones" , , , Satya Priya Subject: [PATCH V4 2/6] dt-bindings: regulator: Add pm8008 regulator bindings Date: Fri, 19 Nov 2021 15:12:29 +0530 Message-ID: <1637314953-4215-3-git-send-email-quic_c_skakit@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> References: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add bindings for pm8008 pmic regulators. Signed-off-by: Satya Priya --- Changes in V2: - Moved this patch before "mfd: pm8008: Add pm8008 regulator node" to resolve dtschema errors. Removed regulator-min-microvolt and regulator-max-microvolt properties. Changes in V3: - As per Rob's comments added standard unit suffix for mindropout property, added blank lines where required and added description for reg property. Changes in V4: - Changed compatible string to "com,pm8008-regulators" - Moved "regulator-min-dropout-voltage-microvolt" to regulator.yaml as separate patch. .../bindings/regulator/qcom,pm8008-regulator.yaml | 68 ++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/qcom,pm8008-regulator.yaml diff --git a/Documentation/devicetree/bindings/regulator/qcom,pm8008-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,pm8008-regulator.yaml new file mode 100644 index 0000000..38ee970 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/qcom,pm8008-regulator.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/qcom,pm8008-regulator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Technologies, Inc. PM8008 Regulator bindings + +maintainers: + - Satya Priya + +description: + Qualcomm Technologies, Inc. PM8008 is an I2C controlled PMIC + containing 7 LDO regulators. + +properties: + compatible: + const: qcom,pm8008-regulators + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + vdd_l1_l2-supply: + description: Input supply phandle of ldo1 and ldo2 regulators. + + vdd_l3_l4-supply: + description: Input supply phandle of ldo3 and ldo4 regulators. + + vdd_l5-supply: + description: Input supply phandle of ldo5 regulator. + + vdd_l6-supply: + description: Input supply phandle of ldo6 regulator. + + vdd_l7-supply: + description: Input supply phandle of ldo7 regulator. + +patternProperties: + "^l[1-7]@[0-9a-f]+$": + type: object + + $ref: "regulator.yaml#" + + description: PM8008 regulator peripherals of PM8008 regulator device + + properties: + reg: + maxItems: 1 + description: Base address of the regulator. + + regulator-name: true + + required: + - reg + - regulator-name + + unevaluatedProperties: false + +required: + - compatible + - "#address-cells" + - "#size-cells" + +additionalProperties: false +... From patchwork Fri Nov 19 09:42:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Satya Priya Kakitapalli (Temp)" X-Patchwork-Id: 12628575 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89C36C4332F for ; Fri, 19 Nov 2021 09:43:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71B7961B72 for ; Fri, 19 Nov 2021 09:43:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234622AbhKSJqV (ORCPT ); Fri, 19 Nov 2021 04:46:21 -0500 Received: from alexa-out-sd-02.qualcomm.com ([199.106.114.39]:18913 "EHLO alexa-out-sd-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232417AbhKSJqU (ORCPT ); Fri, 19 Nov 2021 04:46:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1637314999; x=1668850999; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=X1tDE7vkHYpL0hMd/tCBbkY1HuSgxqvSZmK9kvK9ZwE=; b=uzEmhRmsvy3E8q+DVOJBHZeRDLnXF0WIXo6Oj4ipOiZqqzmkMkPEzffG dQe89k0xWY/Pu7aeCtzOz3sfeIsO9fnQqrXHL+GjbLddQof8BauvGACoB UAonKsHimOhd3nGObHJZygRsYn6jlMjGkJ5X7EcIxcfN+T+OdNzTRcSUJ c=; Received: from unknown (HELO ironmsg03-sd.qualcomm.com) ([10.53.140.143]) by alexa-out-sd-02.qualcomm.com with ESMTP; 19 Nov 2021 01:43:19 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg03-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 01:43:18 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:18 -0800 Received: from c-skakit-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:13 -0800 From: Satya Priya To: Bjorn Andersson , Rob Herring CC: Liam Girdwood , Mark Brown , , , , Das Srinagesh , , "Lee Jones" , , , Satya Priya Subject: [PATCH V4 3/6] dt-bindings: mfd: pm8008: Add pm8008 regulator node Date: Fri, 19 Nov 2021 15:12:30 +0530 Message-ID: <1637314953-4215-4-git-send-email-quic_c_skakit@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> References: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add pm8008-regulator node and example. Signed-off-by: Satya Priya Reviewed-by: Stephen Boyd --- Changes in V2: - As per Rob's comments changed "pm8008[a-z]?-regulator" to "^pm8008[a-z]?-regulators". Changes in V3: - Fixed bot errors. - As per stephen's comments, changed "^pm8008[a-z]?-regulators$" to "regulators". Changes in V4: - Changed compatible string to "qcom,pm8008-regulators" .../devicetree/bindings/mfd/qcom,pm8008.yaml | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml b/Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml index ec3138c..ab6166d 100644 --- a/Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml +++ b/Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml @@ -44,6 +44,10 @@ properties: "#size-cells": const: 0 + regulators: + type: object + $ref: "../regulator/qcom,pm8008-regulator.yaml#" + patternProperties: "^gpio@[0-9a-f]+$": type: object @@ -122,6 +126,26 @@ examples: interrupt-controller; #interrupt-cells = <2>; }; + + regulators { + compatible = "qcom,pm8008-regulators"; + #address-cells = <1>; + #size-cells = <0>; + + vdd_l1_l2-supply = <&vreg_s8b_1p2>; + vdd_l3_l4-supply = <&vreg_s1b_1p8>; + vdd_l5-supply = <&vreg_bob>; + vdd_l6-supply = <&vreg_bob>; + vdd_l7-supply = <&vreg_bob>; + + pm8008_l1: l1@4000 { + reg = <0x4000>; + regulator-name = "pm8008_l1"; + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1300000>; + regulator-min-dropout-voltage-microvolt = <96000>; + }; + }; }; }; From patchwork Fri Nov 19 09:42:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Satya Priya Kakitapalli (Temp)" X-Patchwork-Id: 12628577 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7E57C433FE for ; Fri, 19 Nov 2021 09:43:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C61D061B5E for ; Fri, 19 Nov 2021 09:43:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232417AbhKSJqZ (ORCPT ); Fri, 19 Nov 2021 04:46:25 -0500 Received: from alexa-out-sd-02.qualcomm.com ([199.106.114.39]:18913 "EHLO alexa-out-sd-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234511AbhKSJqY (ORCPT ); Fri, 19 Nov 2021 04:46:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1637315003; x=1668851003; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=lv07KPtfsjmqAY5d++JN/zTOqSU49Gs4xzbVspvUiuA=; b=gqpfqEx9/NKbJRG6CKTZ2I2uA04CqV+Ib2qB9B+SbsplMj6z0VaGlIdT +ua6dxvZs4JkodPNGii4MUPEnQuTOq/9L5t1NJ/dAoQoI6Vwy2m3EXOIK 2rlvUP3XOypMM2FSkj2hmp09VWYJcbNJUIEZzlNKkGXkDZOOXX7sGMSWp U=; Received: from unknown (HELO ironmsg03-sd.qualcomm.com) ([10.53.140.143]) by alexa-out-sd-02.qualcomm.com with ESMTP; 19 Nov 2021 01:43:23 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg03-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 01:43:23 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:22 -0800 Received: from c-skakit-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:18 -0800 From: Satya Priya To: Bjorn Andersson , Rob Herring CC: Liam Girdwood , Mark Brown , , , , Das Srinagesh , , "Lee Jones" , , , Satya Priya Subject: [PATCH V4 4/6] regulator: Add a regulator driver for the PM8008 PMIC Date: Fri, 19 Nov 2021 15:12:31 +0530 Message-ID: <1637314953-4215-5-git-send-email-quic_c_skakit@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> References: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Qualcomm Technologies, Inc. PM8008 is an I2C controlled PMIC containing 7 LDO regulators. Add a PM8008 regulator driver to support PMIC regulator management via the regulator framework. Signed-off-by: Satya Priya --- Changes in V2: - As per Mark's comments - Using regmap helpers for regulator enable/disable and is_enabled APIs - Changed pr_err to dev_err wherever possible. - Removed init_voltage property as it is not used. - Removed if check for registering LDOs - Other minor changes. Changes in V3: - As per Stephen's comments, - Removed unused includes - Removed PM8008_MAX_LDO macro. - Removed pm8008_read/write APIs, using regmap_bulk_read/write APIs - Using le16_to_cpu/cpu_to_le16 APIs in pm8008_regulator_get/set_voltage - Consolidated all probe related functions into single probe function. - Added of_parse_cb call back and removed regulator-name matching loop. - Fixed other minor nits. Changes in V4: - Removed unused members like rdev and of_node from pm8008_regulator struct. - Replaced set_voltage with set_voltage_sel - Removed init_data configuration as it is not needed. - Removed few other unused assignments from probe drivers/regulator/Kconfig | 9 ++ drivers/regulator/Makefile | 1 + drivers/regulator/qcom-pm8008-regulator.c | 258 ++++++++++++++++++++++++++++++ 3 files changed, 268 insertions(+) create mode 100644 drivers/regulator/qcom-pm8008-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 6be9b1c..61e3e98 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -916,6 +916,15 @@ config REGULATOR_PWM This driver supports PWM controlled voltage regulators. PWM duty cycle can increase or decrease the voltage. +config REGULATOR_QCOM_PM8008 + tristate "Qualcomm Technologies, Inc. PM8008 PMIC regulators" + depends on MFD_QCOM_PM8008 + help + Select this option to get support for the voltage regulators + of Qualcomm Technologies, Inc. PM8008 PMIC chip. PM8008 has 7 LDO + regulators. This driver provides support for basic operations like + set/get voltage and enable/disable. + config REGULATOR_QCOM_RPM tristate "Qualcomm RPM regulator driver" depends on MFD_QCOM_RPM diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index b07d2a2..4fac16b6 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -100,6 +100,7 @@ obj-$(CONFIG_REGULATOR_MT6380) += mt6380-regulator.o obj-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o obj-$(CONFIG_REGULATOR_MTK_DVFSRC) += mtk-dvfsrc-regulator.o obj-$(CONFIG_REGULATOR_QCOM_LABIBB) += qcom-labibb-regulator.o +obj-$(CONFIG_REGULATOR_QCOM_PM8008) += qcom-pm8008-regulator.o obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o obj-$(CONFIG_REGULATOR_QCOM_RPMH) += qcom-rpmh-regulator.o obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o diff --git a/drivers/regulator/qcom-pm8008-regulator.c b/drivers/regulator/qcom-pm8008-regulator.c new file mode 100644 index 0000000..38d258e --- /dev/null +++ b/drivers/regulator/qcom-pm8008-regulator.c @@ -0,0 +1,258 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2021, The Linux Foundation. All rights reserved. */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define STARTUP_DELAY_USEC 20 +#define VSET_STEP_MV 8 +#define VSET_STEP_UV (VSET_STEP_MV * 1000) + +#define LDO_ENABLE_REG(base) ((base) + 0x46) +#define ENABLE_BIT BIT(7) + +#define LDO_STATUS1_REG(base) ((base) + 0x08) +#define VREG_READY_BIT BIT(7) + +#define LDO_VSET_LB_REG(base) ((base) + 0x40) + +#define LDO_STEPPER_CTL_REG(base) ((base) + 0x3b) +#define DEFAULT_VOLTAGE_STEPPER_RATE 38400 +#define STEP_RATE_MASK GENMASK(1, 0) + +struct regulator_data { + const char *name; + const char *supply_name; + int min_uv; + int max_uv; + int min_dropout_uv; + const struct linear_range *voltage_range; +}; + +struct pm8008_regulator { + struct device *dev; + struct regmap *regmap; + struct regulator_desc rdesc; + u16 base; + int step_rate; +}; + +static const struct linear_range nldo_ranges[] = { + REGULATOR_LINEAR_RANGE(528000, 0, 122, 8000), +}; + +static const struct linear_range pldo_ranges[] = { + REGULATOR_LINEAR_RANGE(1504000, 0, 237, 8000), +}; + +static const struct regulator_data reg_data[] = { + /* name parent min_uv max_uv headroom_uv */ + { "l1", "vdd_l1_l2", 528000, 1504000, 225000, nldo_ranges }, + { "l2", "vdd_l1_l2", 528000, 1504000, 225000, nldo_ranges }, + { "l3", "vdd_l3_l4", 1504000, 3400000, 200000, pldo_ranges }, + { "l4", "vdd_l3_l4", 1504000, 3400000, 200000, pldo_ranges }, + { "l5", "vdd_l5", 1504000, 3400000, 300000, pldo_ranges }, + { "l6", "vdd_l6", 1504000, 3400000, 300000, pldo_ranges }, + { "l7", "vdd_l7", 1504000, 3400000, 300000, pldo_ranges }, + { } +}; + +static int pm8008_regulator_get_voltage(struct regulator_dev *rdev) +{ + struct pm8008_regulator *pm8008_reg = rdev_get_drvdata(rdev); + __le16 mV; + int rc; + + rc = regmap_bulk_read(pm8008_reg->regmap, + LDO_VSET_LB_REG(pm8008_reg->base), (void *)&mV, 2); + if (rc < 0) { + dev_err(&rdev->dev, "failed to read regulator voltage rc=%d\n", rc); + return rc; + } + + return le16_to_cpu(mV) * 1000; +} + +static inline int pm8008_write_voltage(struct pm8008_regulator *pm8008_reg, + int mV) +{ + int rc; + u16 vset_raw; + + vset_raw = cpu_to_le16(mV); + + rc = regmap_bulk_write(pm8008_reg->regmap, + LDO_VSET_LB_REG(pm8008_reg->base), + (const void *)&vset_raw, sizeof(vset_raw)); + if (rc < 0) { + dev_err(pm8008_reg->dev, "failed to write voltage rc=%d\n", rc); + return rc; + } + + return 0; +} + +static int pm8008_regulator_set_voltage_time(struct regulator_dev *rdev, + int old_uV, int new_uv) +{ + struct pm8008_regulator *pm8008_reg = rdev_get_drvdata(rdev); + + return DIV_ROUND_UP(abs(new_uv - old_uV), pm8008_reg->step_rate); +} + +static int pm8008_regulator_set_voltage(struct regulator_dev *rdev, + unsigned int selector) +{ + struct pm8008_regulator *pm8008_reg = rdev_get_drvdata(rdev); + int rc, mV; + + /* voltage control register is set with voltage in millivolts */ + mV = DIV_ROUND_UP(regulator_list_voltage_linear_range(rdev, selector), + 1000); + if (mV < 0) + return mV; + + rc = pm8008_write_voltage(pm8008_reg, mV); + if (rc < 0) + return rc; + + dev_dbg(&rdev->dev, "voltage set to %d\n", mV * 1000); + return 0; +} + +static const struct regulator_ops pm8008_regulator_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_voltage_sel = pm8008_regulator_set_voltage, + .get_voltage = pm8008_regulator_get_voltage, + .list_voltage = regulator_list_voltage_linear, + .set_voltage_time = pm8008_regulator_set_voltage_time, +}; + +static int pm8008_regulator_of_parse(struct device_node *node, + const struct regulator_desc *desc, + struct regulator_config *config) +{ + struct pm8008_regulator *pm8008_reg = config->driver_data; + struct device *dev = config->dev; + int rc; + unsigned int reg; + + rc = of_property_read_u32(node, "regulator-min-dropout-voltage-microvolt", + &pm8008_reg->rdesc.min_dropout_uV); + if (rc) { + dev_err(dev, "failed to read min-dropout voltage rc=%d\n", rc); + return rc; + } + + /* get slew rate */ + rc = regmap_bulk_read(pm8008_reg->regmap, + LDO_STEPPER_CTL_REG(pm8008_reg->base), ®, 1); + if (rc < 0) { + dev_err(dev, "%s: failed to read step rate configuration rc=%d\n", + pm8008_reg->rdesc.name, rc); + return rc; + } + reg &= STEP_RATE_MASK; + pm8008_reg->step_rate = DEFAULT_VOLTAGE_STEPPER_RATE >> reg; + + return 0; +} + +static int pm8008_regulator_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *parent_node = pdev->dev.of_node; + struct device_node *child_node; + struct regulator_dev *rdev; + struct pm8008_regulator *pm8008_reg; + struct regmap *regmap; + struct regulator_config reg_config = {}; + const struct regulator_data *reg; + int rc; + u32 base; + + regmap = dev_get_regmap(dev->parent, NULL); + if (!regmap) { + dev_err(dev, "parent regmap is missing\n"); + return -EINVAL; + } + + for (reg = ®_data[0]; reg->name; reg++) { + pm8008_reg = devm_kzalloc(dev, sizeof(*pm8008_reg), GFP_KERNEL); + + pm8008_reg->regmap = regmap; + + child_node = of_get_child_by_name(parent_node, reg->name); + if (!child_node) { + dev_err(dev, "child node %s not found\n", reg->name); + return -ENODEV; + } + + pm8008_reg->dev = dev; + + rc = of_property_read_u32(child_node, "reg", &base); + if (rc < 0) { + dev_err(dev, "%s: failed to get regulator base rc=%d\n", + reg->name, rc); + return rc; + } + pm8008_reg->base = base; + + pm8008_reg->rdesc.type = REGULATOR_VOLTAGE; + pm8008_reg->rdesc.ops = &pm8008_regulator_ops; + pm8008_reg->rdesc.name = reg->name; + pm8008_reg->rdesc.supply_name = reg->supply_name; + pm8008_reg->rdesc.of_match = reg->name; + pm8008_reg->rdesc.of_parse_cb = pm8008_regulator_of_parse; + pm8008_reg->rdesc.uV_step = VSET_STEP_UV; + pm8008_reg->rdesc.min_uV = reg->min_uv; + pm8008_reg->rdesc.n_voltages + = ((reg->max_uv - reg->min_uv) + / pm8008_reg->rdesc.uV_step) + 1; + pm8008_reg->rdesc.linear_ranges = reg->voltage_range; + pm8008_reg->rdesc.n_linear_ranges = 1; + pm8008_reg->rdesc.enable_reg = LDO_ENABLE_REG(base); + pm8008_reg->rdesc.enable_mask = ENABLE_BIT; + pm8008_reg->rdesc.min_dropout_uV = reg->min_dropout_uv; + + reg_config.dev = dev; + reg_config.driver_data = pm8008_reg; + + rdev = devm_regulator_register(dev, &pm8008_reg->rdesc, ®_config); + if (IS_ERR(rdev)) { + rc = PTR_ERR(rdev); + dev_err(dev, "%s: failed to register regulator rc=%d\n", reg->name, rc); + return rc; + } + } + return 0; +} + +static const struct of_device_id pm8008_regulator_match_table[] = { + { .compatible = "qcom,pm8008-regulators", }, + { } +}; +MODULE_DEVICE_TABLE(of, pm8008_regulator_match_table); + +static struct platform_driver pm8008_regulator_driver = { + .driver = { + .name = "qcom,pm8008-regulators", + .of_match_table = pm8008_regulator_match_table, + }, + .probe = pm8008_regulator_probe, +}; + +module_platform_driver(pm8008_regulator_driver); + +MODULE_DESCRIPTION("Qualcomm PM8008 PMIC Regulator Driver"); +MODULE_LICENSE("GPL v2"); From patchwork Fri Nov 19 09:42:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Satya Priya Kakitapalli (Temp)" X-Patchwork-Id: 12628595 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4E1AC433F5 for ; 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19 Nov 2021 01:43:28 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg08-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 01:43:27 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:27 -0800 Received: from c-skakit-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:22 -0800 From: Satya Priya To: Bjorn Andersson , Rob Herring CC: Liam Girdwood , Mark Brown , , , , Das Srinagesh , , "Lee Jones" , , , Satya Priya Subject: [PATCH V4 5/6] arm64: dts: qcom: pm8008: Add base dts file Date: Fri, 19 Nov 2021 15:12:32 +0530 Message-ID: <1637314953-4215-6-git-send-email-quic_c_skakit@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> References: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add base DTS file for pm8008 with chip and ldo nodes. Signed-off-by: Satya Priya --- Changes in V4: - This is newly added in V4, to add all the pm8008 common stuff. arch/arm64/boot/dts/qcom/pm8008.dtsi | 57 ++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 arch/arm64/boot/dts/qcom/pm8008.dtsi diff --git a/arch/arm64/boot/dts/qcom/pm8008.dtsi b/arch/arm64/boot/dts/qcom/pm8008.dtsi new file mode 100644 index 0000000..e23478c --- /dev/null +++ b/arch/arm64/boot/dts/qcom/pm8008.dtsi @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: BSD-3-Clause +// Copyright (c) 2021, The Linux Foundation. All rights reserved. + +pm8008_chip: pm8008@8 { + compatible = "qcom,pm8008"; + reg = <0x8>; + #address-cells = <1>; + #size-cells = <0>; +}; + +pm8008_ldo: pm8008@9 { + compatible = "qcom,pm8008"; + reg = <0x9>; + #address-cells = <1>; + #size-cells = <0>; + + pm8008_regulators: regulators { + compatible = "qcom,pm8008-regulators"; + #address-cells = <1>; + #size-cells = <0>; + + pm8008_l1: l1@4000 { + reg = <0x4000>; + regulator-name = "pm8008_l1"; + }; + + pm8008_l2: l2@4100 { + reg = <0x4100>; + regulator-name = "pm8008_l2"; + }; + + pm8008_l3: l3@4200 { + reg = <0x4200>; + regulator-name = "pm8008_l3"; + }; + + pm8008_l4: l4@4300 { + reg = <0x4300>; + regulator-name = "pm8008_l4"; + }; + + pm8008_l5: l5@4400 { + reg = <0x4400>; + regulator-name = "pm8008_l5"; + }; + + pm8008_l6: l6@4500 { + reg = <0x4500>; + regulator-name = "pm8008_l6"; + }; + + pm8008_l7: l7@4600 { + reg = <0x4600>; + regulator-name = "pm8008_l7"; + }; + }; +}; From patchwork Fri Nov 19 09:42:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Satya Priya Kakitapalli (Temp)" X-Patchwork-Id: 12628597 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A5983C43219 for ; Fri, 19 Nov 2021 09:43:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8F36461B31 for ; Fri, 19 Nov 2021 09:43:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234680AbhKSJqe (ORCPT ); Fri, 19 Nov 2021 04:46:34 -0500 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:50364 "EHLO alexa-out-sd-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234671AbhKSJqe (ORCPT ); Fri, 19 Nov 2021 04:46:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1637315012; x=1668851012; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=gjNQXd45TcMbMNCM6PFG/zGDQLeKq6DMiiQVQ+Ek21c=; b=vXsgZo3eJ9pB1FyxzJ9l19k11iYvqu1OSLl+1GDxdrURNTd9nIOXtC3A SuHEfJA+Wj/aHtl+7Uz//4wXkK95OPpx46iDmzNO3F7F374irA3IM838o 8qsMjP0wBPFOqFyGTTjw/pX/8l1q+9YZW75NJZVqd1jE3yKJj5tfHp07+ o=; Received: from unknown (HELO ironmsg04-sd.qualcomm.com) ([10.53.140.144]) by alexa-out-sd-01.qualcomm.com with ESMTP; 19 Nov 2021 01:43:32 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg04-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 01:43:32 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:31 -0800 Received: from c-skakit-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 19 Nov 2021 01:43:27 -0800 From: Satya Priya To: Bjorn Andersson , Rob Herring CC: Liam Girdwood , Mark Brown , , , , Das Srinagesh , , "Lee Jones" , , , Satya Priya Subject: [PATCH V4 6/6] arm64: dts: qcom: sc7280: Add pm8008 regulators support for sc7280-idp Date: Fri, 19 Nov 2021 15:12:33 +0530 Message-ID: <1637314953-4215-7-git-send-email-quic_c_skakit@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> References: <1637314953-4215-1-git-send-email-quic_c_skakit@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add pm8008 regulators support for sc7280 idp. Signed-off-by: Satya Priya --- Changes in V2: - As per Stephen's comments, replaced '_' with '-' for node names. Changes in V3: - Changed the regulator node names as l1, l2 etc - Changed "pm8008-regulators" to "regulators" - Changed "qcom,min-dropout-voltage" to "regulator-min-dropout-voltage-microvolt" Changes in V4: - Moved all common stuff to pm8008.dtsi and added board specific configurations here. arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 73 ++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi index d623d71..f86368d 100644 --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi @@ -309,6 +309,69 @@ }; }; +&i2c1 { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + #include "pm8008.dtsi" +}; + +&pm8008_chip { + pinctrl-names = "default"; + pinctrl-0 = <&pm8008_active>; +}; + +&pm8008_regulators { + vdd_l1_l2-supply = <&vreg_s8b_1p2>; + vdd_l3_l4-supply = <&vreg_s1b_1p8>; + vdd_l5-supply = <&vreg_bob>; + vdd_l6-supply = <&vreg_bob>; + vdd_l7-supply = <&vreg_bob>; +}; + +&pm8008_l1 { + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1300000>; + regulator-min-dropout-voltage-microvolt = <96000>; +}; + +&pm8008_l2 { + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1250000>; + regulator-min-dropout-voltage-microvolt = <24000>; +}; + +&pm8008_l3 { + regulator-min-microvolt = <1650000>; + regulator-max-microvolt = <3000000>; + regulator-min-dropout-voltage-microvolt = <224000>; +}; + +&pm8008_l4 { + regulator-min-microvolt = <1504000>; + regulator-max-microvolt = <1600000>; + regulator-min-dropout-voltage-microvolt = <0>; +}; + +&pm8008_l5 { + regulator-min-microvolt = <2600000>; + regulator-max-microvolt = <3000000>; + regulator-min-dropout-voltage-microvolt = <104000>; +}; + +&pm8008_l6 { + regulator-min-microvolt = <2600000>; + regulator-max-microvolt = <3000000>; + regulator-min-dropout-voltage-microvolt = <112000>; +}; + +&pm8008_l7 { + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3544000>; + regulator-min-dropout-voltage-microvolt = <96000>; +}; + &qfprom { vcc-supply = <&vreg_l1c_1p8>; }; @@ -437,6 +500,16 @@ }; }; +&pm8350c_gpios { + pm8008_active: pm8008_active { + pins = "gpio4"; + function = "normal"; + bias-disable; + output-high; + power-source = <0>; + }; +}; + &qspi_cs0 { bias-disable; };