From patchwork Fri Nov 18 08:45:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 626201 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 7993BC43217 for ; Fri, 18 Nov 2022 08:45:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230523AbiKRIpg (ORCPT ); Fri, 18 Nov 2022 03:45:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241426AbiKRIpT (ORCPT ); Fri, 18 Nov 2022 03:45:19 -0500 Received: from mail-wr1-x429.google.com (mail-wr1-x429.google.com [IPv6:2a00:1450:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 290CB942F5 for ; Fri, 18 Nov 2022 00:45:10 -0800 (PST) Received: by mail-wr1-x429.google.com with SMTP id bs21so8177576wrb.4 for ; Fri, 18 Nov 2022 00:45:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=cc:to:message-id:date:from:content-transfer-encoding:mime-version :subject:from:to:cc:subject:date:message-id:reply-to; bh=ora/VunEn0YneVtDdkAbPmkCHMtwr9PRQnKVi+QQtuk=; b=PWKvBm09nWluf8q9xZx5T063ULZCTCSLwTivRmIV5S0KnyAMfLueWTage9HLdTGNpE NZ31+jMT4SZ6ehGHptyA0JqxUwstvDhii2cpOQyashKNJ6P9VgY9JtGt7ob6HIF7Hirq Xr2aYb49CXySFC8LF3YwI6BC8EqFUmeTlJb18c8lsOh+6vNIu6m8D2JRg1KJUkt1w0uE o7Fp5EtGGH7naQRjScYV9uqS17tUy8GFBtpN7P7tYI3BxScD6mq/BjBWCNwEZWPPbWPt fl0sLxBmTDWR2SJRnqp5D4tp8J6vOQesalACJlkG3t2e00cWrImVViLf4nWBdh0mVfCb TGvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:message-id:date:from:content-transfer-encoding:mime-version :subject:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ora/VunEn0YneVtDdkAbPmkCHMtwr9PRQnKVi+QQtuk=; b=RsoRVbRMianaj+inXZFasxj9uoUdek1sK3Ilc5kowUODWm2TgYPo2tjrYUO0CyPQ4a ZI2U2d0upet+4R3NNqeqp4bKnXUQ0lDdXaTJ+5vVlEEjdqUspLlRz3Yc5he1qxO1BFMd asWNg+iO9ke2Rn+dSHE3AmNVmvDcHnyYKxsS1jKwh/pFf/aT0nfNjSWGx+MUzVb9Fgh/ nvN2u9HPre3GpjGz817bktoQLhJWMBERpzeBonJn5bqQeGuD6zY+EyIvdJzvWsQvyJBw Bu5FS4tz4JhYLhCGfzYHBLhGPqhOp8oTUQfTkjy3F+/KfJwVuiqOmB3sk/RlktfwTrRH TRNQ== X-Gm-Message-State: ANoB5pmT7B3Nu9h60TdpspZ0fc0ZWPTy0BOLWWmKcFfWWbYUedq7lt3m kRAOh3iSFSjVaQ73RHQbO9RjaA== X-Google-Smtp-Source: AA0mqf6eeEHhhxK6RxscWgzRkeJS+Z73karOL8G1Cll4V/G4ET6dxlzUFdmwBPGLNNNQKDtjBb6y9g== X-Received: by 2002:adf:ce0f:0:b0:22e:2e22:6698 with SMTP id p15-20020adfce0f000000b0022e2e226698mr3805864wrn.296.1668761108653; Fri, 18 Nov 2022 00:45:08 -0800 (PST) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:52eb:f6ff:feb3:451a]) by smtp.gmail.com with ESMTPSA id v18-20020a5d6112000000b00236e834f050sm2960284wrt.35.2022.11.18.00.45.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Nov 2022 00:45:08 -0800 (PST) Subject: [PATCH v2 0/6] soc: qcom: add support for the I2C Master Hub MIME-Version: 1.0 X-b4-tracking: H4sIABBGd2MC/52NTQrCMBCFryJZO5IJ6Z8r7yEukjo2gSaRTFuQ0rs7eARXj+/B+96umGokVtfTri ptkWPJAuZ8UmNweSKIT2FltDGIaCG7mnipJU/AqW8aDetbmFyCaEZIjheqEFYP1rru5XGwXUNKfN4x ga8uj0GMeZ1nKUPkpdTP739Difs/VxuChtZaO6BuHdr+NkdZl0upk3ocx/EF0WZInegAAAA= From: Neil Armstrong Date: Fri, 18 Nov 2022 09:45:04 +0100 Message-Id: <20221114-narmstrong-sm8550-upstream-i2c-master-hub-v2-0-aadaa6997b28@linaro.org> To: Rob Herring , Krzysztof Kozlowski , Bjorn Andersson , Konrad Dybcio , Andy Gross Cc: linux-kernel@vger.kernel.org, Konrad Dybcio , Neil Armstrong , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-i2c@vger.kernel.org X-Mailer: b4 0.10.1 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The I2C Master Hub is a stripped down version of the GENI Serial Engine QUP Wrapper Controller but only supporting I2C serial engines without DMA support. The I2C Master Hub only supports a variant of the I2C serial engine with: - a separate "core" clock - no DMA support - non discoverable fixed FIFO size Since DMA isn't supported, the wrapper doesn't need the Master AHB clock and the iommus property neither. This patchset adds the bindings changes to the QUPv3 wrapper and I2C serial element bindings to reflect the different resources requirements. In order to reuse the QUPv3 wrapper and I2C serial element driver support, the I2C Master Hub requirements are expressed in new desc structs passed as device match data. To: Andy Gross To: Bjorn Andersson To: Konrad Dybcio To: Rob Herring To: Krzysztof Kozlowski Cc: linux-arm-msm@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-i2c@vger.kernel.org Signed-off-by: Neil Armstrong --- Changes in v2: - Fixed all commits messages to remove "This" and fix grammar - Fixed the bindings by moving the if in allOf:if - Fixed the bindings by adding minItems: & maxItems: instead of true - Added a warning about clock count in patch 3 - Added Reviewed-by from Konrad on patches 3, 4 & 5 - Link to v1: https://lore.kernel.org/r/20221114-narmstrong-sm8550-upstream-i2c-master-hub-v1-0-64449106a148@linaro.org --- Neil Armstrong (6): dt-bindings: qcom: geni-se: document I2C Master Hub wrapper variant dt-bindings: i2c: qcom-geni: document I2C Master Hub serial I2C engine soc: qcom: geni-se: add desc struct to specify clocks from device match data soc: qcom: geni-se: add support for I2C Master Hub wrapper variant i2c: qcom-geni: add desc struct to prepare support for I2C Master Hub variant i2c: qcom-geni: add support for I2C Master Hub variant .../bindings/i2c/qcom,i2c-geni-qcom.yaml | 64 ++++++++++++++++---- .../devicetree/bindings/soc/qcom/qcom,geni-se.yaml | 44 ++++++++++++-- drivers/i2c/busses/i2c-qcom-geni.c | 58 +++++++++++++++++- drivers/soc/qcom/qcom-geni-se.c | 69 +++++++++++++++++----- 4 files changed, 202 insertions(+), 33 deletions(-) --- base-commit: 094226ad94f471a9f19e8f8e7140a09c2625abaa change-id: 20221114-narmstrong-sm8550-upstream-i2c-master-hub-44a7fb19475e Best regards,