From patchwork Sat Nov 12 20:07:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Elder X-Patchwork-Id: 13041363 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 D2D50C433FE for ; Sat, 12 Nov 2022 20:07:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234989AbiKLUH2 (ORCPT ); Sat, 12 Nov 2022 15:07:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234889AbiKLUH0 (ORCPT ); Sat, 12 Nov 2022 15:07:26 -0500 Received: from mail-io1-xd35.google.com (mail-io1-xd35.google.com [IPv6:2607:f8b0:4864:20::d35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 24AA414D0D for ; Sat, 12 Nov 2022 12:07:24 -0800 (PST) Received: by mail-io1-xd35.google.com with SMTP id e189so5749158iof.1 for ; Sat, 12 Nov 2022 12:07:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; 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=aloX78xpt1ZUhhk2B4r0yIdFbVyMyxb0348xtj6qFfc=; b=TT3fdj5lcRdlBtkMD5vkH+ZZoUO3bL/WA3FBAh0BI7eO+orVVn1dNt7qAlAegJ0Lss UemR8GUQyxIv6pQufwfd6UaPhavZRdvi5PuzA+bLQD8c0BQ6fXIN0qqeIdt6J4ZGj+X2 wisjKxowPvttRKTgiyUy0zTgxcSrpgXShkJdmGUIzojI84JPdhWW8f3LMw5ZZiy+rbgD 5+x7Yzr9FaF8OTiZplpQB9FKZaWoHRgzKN+sPJvtgSwoPK36TE0xHYB3qBjORbGKZj3n j4F4BTi/qO0yIJamHJMEEJDHFLAcxb97dlxm6RtK2OaRVmMV0GFoqx4kgNT0q3PGxS2p xGeQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=aloX78xpt1ZUhhk2B4r0yIdFbVyMyxb0348xtj6qFfc=; b=RS6Q1bkPMAXEcszEj/T3E6DdOFrMm8Xsj4bY9apnty2Tt26SMOVQeYZTyhwqhYi8q2 xSS1KDiJz11AUpa0m79HJvODf2o1kbqEl2YdnaEfO4vEQuJ4lnUfA8HyMQY9Ar73tmvA /w/C5zDKQ0Pleuv8fbwUD3wqrISYwkONdT0x6yaXUh9rA4fFcXorhx82gAgo2DwHW0O1 /WWFt30LfGNVntkvwt2Rh0TyD+pm6lvvkgc1uintZG8k8EuTR1Yr+4OxNe0SkZ/YD2Go dVBIdI5DtYXN8wIrpCW8VJ3N8fJsVwxRSyIm0bTvnhCTtbXAR++/yfWNqIbdKfFE0oA7 zHpg== X-Gm-Message-State: ANoB5pkwkX5yKmvgQ3+fhlGidCyUg/jSl/k42ggMLLn7fjxRQt0ngxDk Be5zar6pWm5aVBGerQzWS5nY0Q== X-Google-Smtp-Source: AA0mqf6APkEFWbXx0Gjx1yZuFZlNO85CoDgOGY5sIPjDA9FD9GgcyhdrRotiIbkSLtIq/1ZHGINVDw== X-Received: by 2002:a6b:6318:0:b0:6ca:6cbb:cb83 with SMTP id p24-20020a6b6318000000b006ca6cbbcb83mr3221089iog.44.1668283643477; Sat, 12 Nov 2022 12:07:23 -0800 (PST) Received: from presto.localdomain ([98.61.227.136]) by smtp.gmail.com with ESMTPSA id j28-20020a02cb1c000000b00363dee286edsm2036870jap.60.2022.11.12.12.07.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 12 Nov 2022 12:07:22 -0800 (PST) From: Alex Elder To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: andersson@kernel.org, konrad.dybcio@linaro.org, agross@kernel.org, elder@kernel.org, linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 1/5] dt-bindings: net: qcom,ipa: deprecate modem-init Date: Sat, 12 Nov 2022 14:07:13 -0600 Message-Id: <20221112200717.1533622-2-elder@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221112200717.1533622-1-elder@linaro.org> References: <20221112200717.1533622-1-elder@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org GSI firmware for IPA must be loaded during initialization, either by the AP or by the modem. The loader is currently specified based on whether the Boolean modem-init property is present. Instead, use a new property with an enumerated value to indicate explicitly how GSI firmware gets loaded. With this in place, a third approach can be added in an upcoming patch. The new qcom,gsi-loader property has two defined values: - self: The AP loads GSI firmware - modem: The modem loads GSI firmware The modem-init property must still be supported, but is now marked deprecated. Signed-off-by: Alex Elder --- .../devicetree/bindings/net/qcom,ipa.yaml | 59 +++++++++++++++---- 1 file changed, 46 insertions(+), 13 deletions(-) diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml index e752b76192df0..0dfd6c721e045 100644 --- a/Documentation/devicetree/bindings/net/qcom,ipa.yaml +++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml @@ -124,12 +124,22 @@ properties: - const: ipa-clock-enabled-valid - const: ipa-clock-enabled + qcom,gsi-loader: + enum: + - self + - modem + description: + This indicates how GSI firmware should be loaded. If the AP loads + and validates GSI firmware, this property has value "self". If the + modem does this, this property has value "modem". + modem-init: + deprecated: true type: boolean description: - If present, it indicates that the modem is responsible for - performing early IPA initialization, including loading and - validating firwmare used by the GSI. + This is the older (deprecated) way of indicating how GSI firmware + should be loaded. If present, the modem loads GSI firmware; if + absent, the AP loads GSI firmware. memory-region: maxItems: 1 @@ -155,15 +165,36 @@ required: - interconnects - qcom,smem-states -# If modem-init is not present, the AP loads GSI firmware, and -# memory-region must be specified -if: - not: - required: - - modem-init -then: - required: - - memory-region +allOf: + # If qcom,gsi-loader is present, modem-init must not be present + - if: + required: + - qcom,gsi-loader + then: + properties: + modem-init: false + + # If qcom,gsi-loader is "self", the AP loads GSI firmware, and + # memory-region must be specified + if: + properties: + qcom,gsi-loader: + contains: + const: self + then: + required: + - memory-region + else: + # If qcom,gsi-loader is not present, we use deprecated behavior. + # If modem-init is not present, the AP loads GSI firmware, and + # memory-region must be specified. + if: + not: + required: + - modem-init + then: + required: + - memory-region additionalProperties: false @@ -196,7 +227,9 @@ examples: ipa@1e40000 { compatible = "qcom,sdm845-ipa"; - modem-init; + qcom,gsi-loader = "self"; + memory-region = <&ipa_fw_mem>; + firmware-name = "qcom/sc7180-trogdor/modem-nolte/mba.mbn"; iommus = <&apps_smmu 0x720 0x3>; reg = <0x1e40000 0x7000>,