From patchwork Wed Apr 14 17:29:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hsin-Yi Wang X-Patchwork-Id: 421209 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=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 73BCBC433ED for ; Wed, 14 Apr 2021 17:29:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 47CD0611AD for ; Wed, 14 Apr 2021 17:29:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350257AbhDNR3p (ORCPT ); Wed, 14 Apr 2021 13:29:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45614 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233810AbhDNR3o (ORCPT ); Wed, 14 Apr 2021 13:29:44 -0400 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B9078C06175F for ; Wed, 14 Apr 2021 10:29:22 -0700 (PDT) Received: by mail-pl1-x635.google.com with SMTP id c2so3075525plz.0 for ; Wed, 14 Apr 2021 10:29:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1Mc9V/D86U6BEgIVG5fSvnzsnM5e5tTTmQuVaPnzWOE=; b=I+jfFQqNi9/cilXzuSk6QG3M59Lt49okHGRHlubvLVjAI91piLtl8VNAc4/BfaPVFk XaU5JTTJewUdvBdO5DRSzYJoTrk334pEPmYXthPFZKGaXM0GbIQxibJe7BK1zsGNZEZp iaoZlNOa/SIbvvmTcc/kGpzVFB49NHkAluesQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1Mc9V/D86U6BEgIVG5fSvnzsnM5e5tTTmQuVaPnzWOE=; b=WpfwsqqWUfUNAheIDPCjUgKFQWHksFXlOJBMSNBw99enIPyNCpwnsp2YcgtPaNr+lY 1exMYxhuNBLn671nMgBLJEI6FtMS9/b19N/OeXn+TSJm+B+AUbm1P8AWZJzCvQO7uAyb 1ndYlAQq0lnYTl9UO/XwD0pk2xMpYAGau2C8ECEbnbXsDRIxK9kLmTuHgig30iI/TIED ity2sWeVzCw1++MxmRnvKbECoAV8R93GpqRUzrXza0tGa8oDx/vVC/SnuPKBM3xodABF iH+04yxeWx+3j0tb5sFVm6uhGUPPv7scnwUm8PW1FsJSWM2xkfslvtT22F0dNDHEPKpz kKnA== X-Gm-Message-State: AOAM531Vl3bmXdLmdtud0nbOCkyAhpfkTmf8EK9aIxpSUSzi/rojaEDJ 1HclX2uHAGjVRPnpv6RNzVcnAQ== X-Google-Smtp-Source: ABdhPJx59RC39LfClSHgnlQasDDu7sVxpdQzTbo5+kAxp9cQhaHMPuG2TyZuMZw0VJ7OVAVgHWGybw== X-Received: by 2002:a17:902:7589:b029:e8:c011:1f28 with SMTP id j9-20020a1709027589b02900e8c0111f28mr38384074pll.35.1618421361888; Wed, 14 Apr 2021 10:29:21 -0700 (PDT) Received: from hsinyi-z840.tpe.corp.google.com ([2401:fa00:1:10:bae3:4af0:9792:1539]) by smtp.gmail.com with ESMTPSA id e31sm63460pjk.4.2021.04.14.10.29.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Apr 2021 10:29:21 -0700 (PDT) From: Hsin-Yi Wang To: Wolfram Sang , Matthias Brugger , Rob Herring , Bartosz Golaszewski Cc: linux-i2c@vger.kernel.org, Qii Wang , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Mark Brown , Marek Szyprowski , Bibby Hsieh , Arnd Bergmann , Jani Nikula , Joonas Lahtinen , intel-gfx@lists.freedesktop.org Subject: [PATCH v19 0/6] add power control in i2c Date: Thu, 15 Apr 2021 01:29:10 +0800 Message-Id: <20210414172916.2689361-1-hsinyi@chromium.org> X-Mailer: git-send-email 2.31.1.295.g9ea45b61b8-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Although in the most platforms, the power of eeprom and i2c are alway on, some platforms disable the eeprom and i2c power in order to meet low power request. This patch add the pm_runtime ops to control power to support all platforms. Changes since v18: - Fix a function name conflict with drivers/gpu/drm/i915/selftests/i915_gem.c Changes since v17: - Add a patch to fix unbalanced regulator disabling. - Add dts patch. Changes since v16: - request regulator in device instead of in the core. - control regulator only if it's provided. Changes since v15: - Squash the fix[1] for v15. [1] https://patchwork.ozlabs.org/project/linux-i2c/patch/20200522101327.13456-1-m.szyprowski@samsung.com/ Changes since v14: - change the return value in normal condition - access the variable after NULL pointer checking - add ack tag Changes since v13: - fixup some logic error Changes since v12: - rebase onto v5.7-rc1 - change the property description in binding Changes since v11: - use suspend_late/resume_early instead of suspend/resume - rebase onto v5.6-rc1 Changes since v10: - fixup some worng codes Changes since v9: - fixup build error - remove redundant code Changes since v8: - fixup some wrong code - remove redundant message [... snip ...] Bibby Hsieh (1): i2c: core: support bus regulator controlling in adapter Hsin-Yi Wang (5): dt-binding: i2c: mt65xx: add vbus-supply property i2c: mediatek: mt65xx: add optional vbus-supply misc: eeprom: at24: check suspend status before disable regulator arm64: dts: mt8183: add supply name for eeprom drm/i915/selftests: Rename functions names .../devicetree/bindings/i2c/i2c-mt65xx.txt | 1 + .../dts/mediatek/mt8183-kukui-kakadu.dtsi | 4 + .../dts/mediatek/mt8183-kukui-kodama.dtsi | 4 + .../boot/dts/mediatek/mt8183-kukui-krane.dtsi | 4 + drivers/gpu/drm/i915/selftests/i915_gem.c | 10 +-- drivers/i2c/busses/i2c-mt65xx.c | 7 ++ drivers/i2c/i2c-core-base.c | 88 +++++++++++++++++++ drivers/misc/eeprom/at24.c | 6 +- include/linux/i2c.h | 2 + 9 files changed, 119 insertions(+), 7 deletions(-)