From mboxrd@z Thu Jan 1 00:00:00 1970 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=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 B4DC4C43460 for ; Wed, 14 Apr 2021 08:40:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8F751613C8 for ; Wed, 14 Apr 2021 08:40:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232007AbhDNIk3 (ORCPT ); Wed, 14 Apr 2021 04:40:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41514 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244679AbhDNIih (ORCPT ); Wed, 14 Apr 2021 04:38:37 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E67F6C061574 for ; Wed, 14 Apr 2021 01:38:14 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id lr1-20020a17090b4b81b02900ea0a3f38c1so2686784pjb.0 for ; Wed, 14 Apr 2021 01:38:14 -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=ziD1BQdNKZSqD9NFOROVnnc3R2EFM0orDAwFpUzsN4A=; b=C0vWj0hcBIafvHaGDWKGXb8qFbK28K+6CTcbRx+jBhqGxVEenk0ZpfI0OEJ3GBjUn1 OI3le/p6rRWJtcT/v150Mb1TBw0aVJ4I4ujf8XZJ6QCEcWxfboN3sWqrCM1RMVPgD/7m LGkG0VLXouLy5TRv1hH1BP9Xpzl7X+4Qz8jbA= 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=ziD1BQdNKZSqD9NFOROVnnc3R2EFM0orDAwFpUzsN4A=; b=Vq8NYo9uZ76298NwY6dq4yuHQi0xaY+4sELyHocZj3G8jPpz0PXV0I5y24QKmrxEUr yjPpEf8tQ4A8qK0yDrtW+ihiEv40FQSBSMAGGQGM1N2AjnaICazKCaVj+K4rLnViySKx j8R2D+cCc5drvSORlsleZwZ0TnL6A0ZsBgBonoeWDtPsv6cQdeR1wg2DahKmtSwKAKWJ /TKrrllrDzezHNkClEmCa5tglvEkr/X4t08ILv0B0lW1TX1u7jSdtI50O2cjueJ4J4Uc hwIgTIyrSkqMGCbdu4psQX+IqcxzMcJXmgSDw+NY2QnJr3lvdJfOjzBvAujDTrNkAyql jTJQ== X-Gm-Message-State: AOAM532RNc1723yZ5NkFxabY6pENQFQmto9M2XVkYRCBRbclpSBBuJgv F9TkKvu1VseeGsbJoheAly5P+g== X-Google-Smtp-Source: ABdhPJxSlTkPVFR0T8QT7aqFYNKg9cTSJzvySRAavLQ24KU4Uo3AyiacyaFpCBzs8QBA2CP0H23BOA== X-Received: by 2002:a17:902:f2d1:b029:eb:2e32:8804 with SMTP id h17-20020a170902f2d1b02900eb2e328804mr7489637plc.40.1618389494389; Wed, 14 Apr 2021 01:38:14 -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 g24sm8901582pfh.164.2021.04.14.01.38.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Apr 2021 01:38:13 -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 Subject: [PATCH v18 0/5] add power control in i2c Date: Wed, 14 Apr 2021 16:38:04 +0800 Message-Id: <20210414083809.1932133-1-hsinyi@chromium.org> X-Mailer: git-send-email 2.31.1.295.g9ea45b61b8-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-i2c@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 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 (4): 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 .../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/i2c/busses/i2c-mt65xx.c | 7 ++ drivers/i2c/i2c-core-base.c | 88 +++++++++++++++++++ drivers/misc/eeprom/at24.c | 6 +- include/linux/i2c.h | 2 + 8 files changed, 114 insertions(+), 2 deletions(-) -- 2.31.1.295.g9ea45b61b8-goog