From patchwork Mon Mar 22 10:30:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maulik Shah X-Patchwork-Id: 12154373 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 65756C433E2 for ; Mon, 22 Mar 2021 10:32:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39CBA619AE for ; Mon, 22 Mar 2021 10:32:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230153AbhCVKcG (ORCPT ); Mon, 22 Mar 2021 06:32:06 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:50061 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230320AbhCVKbR (ORCPT ); Mon, 22 Mar 2021 06:31:17 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1616409077; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=Z0AeLhHSXJJ4eQali/z66O65y911KYkpjBlrNTVRIrQ=; b=iv9rhSheZqwdBwHRnAU7k8wUuLni4GrQ/wxP8O3KYITIlrC4gXRj3tgepOfPg/LOqVMnfN/V lMM3P+28ZmHOXJeUesAf1aX5cz6BeHtdjfmSSeiMz/QvG7zN9eIFWqweAerFTbFFfWFBALfj t/zQ+ha5QFahgPZZhpeMwuwWqvw= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n02.prod.us-west-2.postgun.com with SMTP id 605871d421031618f6ac6c33 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Mon, 22 Mar 2021 10:30:44 GMT Sender: mkshah=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id EDF79C43463; Mon, 22 Mar 2021 10:30:43 +0000 (UTC) Received: from mkshah-linux.qualcomm.com (unknown [202.46.22.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: mkshah) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5CDE7C433CA; Mon, 22 Mar 2021 10:30:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5CDE7C433CA Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=mkshah@codeaurora.org From: Maulik Shah To: swboyd@chromium.org, bjorn.andersson@linaro.org, maz@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, dianders@chromium.org, rnayak@codeaurora.org, lsrao@codeaurora.org, Maulik Shah , devicetree@vger.kernel.org Subject: [PATCH v2] dt-bindings: interrupt-controller: Convert bindings to yaml for qcom,pdc Date: Mon, 22 Mar 2021 16:00:15 +0530 Message-Id: <1616409015-27682-1-git-send-email-mkshah@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This change converts PDC interrupt controller bindings to yaml. Cc: devicetree@vger.kernel.org Signed-off-by: Maulik Shah --- This change depends on [1] which adds sc7280 compatible for PDC Changes in v2: - Document optional PDC's GIC interface reg - Update example to mention optional reg. [1] https://patchwork.kernel.org/project/linux-arm-msm/list/?series=449725 --- .../bindings/interrupt-controller/qcom,pdc.txt | 76 ----------------- .../bindings/interrupt-controller/qcom,pdc.yaml | 96 ++++++++++++++++++++++ 2 files changed, 96 insertions(+), 76 deletions(-) delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt create mode 100644 Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt deleted file mode 100644 index 98d89e5..0000000 --- a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt +++ /dev/null @@ -1,76 +0,0 @@ -PDC interrupt controller - -Qualcomm Technologies Inc. SoCs based on the RPM Hardened architecture have a -Power Domain Controller (PDC) that is on always-on domain. In addition to -providing power control for the power domains, the hardware also has an -interrupt controller that can be used to help detect edge low interrupts as -well detect interrupts when the GIC is non-operational. - -GIC is parent interrupt controller at the highest level. Platform interrupt -controller PDC is next in hierarchy, followed by others. Drivers requiring -wakeup capabilities of their device interrupts routed through the PDC, must -specify PDC as their interrupt controller and request the PDC port associated -with the GIC interrupt. See example below. - -Properties: - -- compatible: - Usage: required - Value type: - Definition: Should contain "qcom,-pdc" and "qcom,pdc" - - "qcom,sc7180-pdc": For SC7180 - - "qcom,sc7280-pdc": For SC7280 - - "qcom,sdm845-pdc": For SDM845 - - "qcom,sdm8250-pdc": For SM8250 - - "qcom,sdm8350-pdc": For SM8350 - -- reg: - Usage: required - Value type: - Definition: Specifies the base physical address for PDC hardware. - -- interrupt-cells: - Usage: required - Value type: - Definition: Specifies the number of cells needed to encode an interrupt - source. - Must be 2. - The first element of the tuple is the PDC pin for the - interrupt. - The second element is the trigger type. - -- interrupt-controller: - Usage: required - Value type: - Definition: Identifies the node as an interrupt controller. - -- qcom,pdc-ranges: - Usage: required - Value type: - Definition: Specifies the PDC pin offset and the number of PDC ports. - The tuples indicates the valid mapping of valid PDC ports - and their hwirq mapping. - The first element of the tuple is the starting PDC port. - The second element is the GIC hwirq number for the PDC port. - The third element is the number of interrupts in sequence. - -Example: - - pdc: interrupt-controller@b220000 { - compatible = "qcom,sdm845-pdc"; - reg = <0xb220000 0x30000>; - qcom,pdc-ranges = <0 512 94>, <94 641 15>, <115 662 7>; - #interrupt-cells = <2>; - interrupt-parent = <&intc>; - interrupt-controller; - }; - -DT binding of a device that wants to use the GIC SPI 514 as a wakeup -interrupt, must do - - - wake-device { - interrupts-extended = <&pdc 2 IRQ_TYPE_LEVEL_HIGH>; - }; - -In this case interrupt 514 would be mapped to port 2 on the PDC as defined by -the qcom,pdc-ranges property. diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml new file mode 100644 index 0000000..8b4151c --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/qcom,pdc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Technologies, Inc. PDC interrupt controller + +maintainers: + - Maulik Shah + +description: | + Qualcomm Technologies, Inc. SoCs based on the RPM Hardened architecture have a + Power Domain Controller (PDC) that is on always-on domain. In addition to + providing power control for the power domains, the hardware also has an + interrupt controller that can be used to help detect edge low interrupts as + well detect interrupts when the GIC is non-operational. + + GIC is parent interrupt controller at the highest level. Platform interrupt + controller PDC is next in hierarchy, followed by others. Drivers requiring + wakeup capabilities of their device interrupts routed through the PDC, must + specify PDC as their interrupt controller and request the PDC port associated + with the GIC interrupt. See example below. + +properties: + compatible: + items: + - enum: + # Should contain "qcom,-pdc" and "qcom,pdc" + - qcom,sc7180-pdc #For SC7180 + - qcom,sc7280-pdc #For SC7280 + - qcom,sdm845-pdc #For SDM845 + - qcom,sm8250-pdc #For SM8250 + - qcom,sm8350-pdc #For SM8350 + - const: qcom,pdc + + reg: + description: | + Specifies the base physical address for PDC hardware followed by optional + PDC's GIC interface registers that need to be configured for wakeup capable + GPIOs routed to the PDC. + minItems: 1 + maxItems: 2 + + '#interrupt-cells': + # Specifies the number of cells needed to encode an interrupt. + # The first element of the tuple is the PDC pin for the interrupt. + # The second element is the trigger type. + const: 2 + + interrupt-controller: true + + qcom,pdc-ranges: + description: | + Specifies the PDC pin offset and the number of PDC ports. + The tuples indicates the valid mapping of valid PDC ports + and their hwirq mapping. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + items: + - description: | + "a" The first element of the tuple is the starting PDC port. + - description: | + "b" The second element is the GIC SPI number for the PDC port. + - description: | + "c" The third element is the number of interrupts in sequence. + +required: + - compatible + - reg + - '#interrupt-cells' + - interrupt-controller + - qcom,pdc-ranges + +additionalProperties: false + +examples: + - | + pdc: interrupt-controller@b220000 { + compatible = "qcom,sdm845-pdc", "qcom,pdc"; + reg = <0xb220000 0x30000>, <0x17c000f0 0x60>; + qcom,pdc-ranges = <0 512 94>, <94 641 15>, <115 662 7>; + #interrupt-cells = <2>; + interrupt-parent = <&intc>; + interrupt-controller; + }; + + # DT binding of a device that wants to use the GIC SPI 514 as a wakeup + # interrupt, must do - + # wake-device { + # interrupts-extended = <&pdc 2 IRQ_TYPE_LEVEL_HIGH>; + # }; + + # In this case interrupt 514 would be mapped to port 2 on the PDC as defined + # by the qcom,pdc-ranges property. +...