From patchwork Wed Apr 14 17:29:13 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: 12203447 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,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 5F53BC433B4 for ; Wed, 14 Apr 2021 17:29:33 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2CB9261166 for ; Wed, 14 Apr 2021 17:29:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2CB9261166 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CD4F26E8FE; Wed, 14 Apr 2021 17:29:32 +0000 (UTC) Received: from mail-pj1-x1036.google.com (mail-pj1-x1036.google.com [IPv6:2607:f8b0:4864:20::1036]) by gabe.freedesktop.org (Postfix) with ESMTPS id 891006E4D7 for ; Wed, 14 Apr 2021 17:29:31 +0000 (UTC) Received: by mail-pj1-x1036.google.com with SMTP id nm3-20020a17090b19c3b029014e1bbf6c60so7007766pjb.4 for ; Wed, 14 Apr 2021 10:29:31 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=plmO0AdMl820K1E1EewPUIFFIYm0UYQ8GWMNCMfiNMs=; b=LWWkG7tf2pAAxOYa62M6wF4DR6wuiuWheoc5zSNFuwA0w62Prt2SPX7h0tg3QF4d2V 44nkwDeNFfIzGlhxsD0/euzgJwjZy8/voyo4Fri/H5W/ug6v0hmlUPQH+WHtMo0TjM9m zGTvuXagrcNpxaxXK+HoZoVJQf5Z62gbvDiKQ= 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=plmO0AdMl820K1E1EewPUIFFIYm0UYQ8GWMNCMfiNMs=; b=J7YCiN6MReSKMT6Tj6Y49gXJcBprYfs7OO2xVM5X5aOJu4y2Ij8z7b7tIIxDnmLZHm fKTEScYjgSM3P0rbyUSD1sqc81ZRxGhL1vkKFFDcutpTUQSn/bwGBV9AUuu2ZEq8EF82 MDNScnBsWc+Gr0Dj1wVI4ugPafnPstQm7HPYzAOjopIgvy6UCs20IqvtLkk/JIk7y9Cf 8I/RxCYcP5TLeTXAhAnGMdY4W3tQAi0aDM/YEEMd6lyYER42eeM5IwPqAksbhvWUW221 PFYd5JJ1Em1gBgD3TknBrOvfR5PePZExUSX/wZ/Gw4p4o7BMszAHkOQ6jMURct6xNRoA rcYQ== X-Gm-Message-State: AOAM5330EQraPxprOWYYBEs4053zkPc28rLw1HqlFVV8YIaDa3cALR93 MCjOsTpOABuSiscYxlOIHK7+nQ== X-Google-Smtp-Source: ABdhPJzqi2vvW8j/Szl8iVKwjP6K0nUzELS0dvdFZgmCztvcUb4kX2kyyJdsJNS5/ctFp046mYN23w== X-Received: by 2002:a17:902:fe91:b029:eb:ad8:c5f with SMTP id x17-20020a170902fe91b02900eb0ad80c5fmr15248007plm.63.1618421371078; Wed, 14 Apr 2021 10:29:31 -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.4.2021.04.14.10.29.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Apr 2021 10:29:30 -0700 (PDT) From: Hsin-Yi Wang To: Wolfram Sang , Matthias Brugger , Rob Herring , Bartosz Golaszewski Date: Thu, 15 Apr 2021 01:29:13 +0800 Message-Id: <20210414172916.2689361-4-hsinyi@chromium.org> X-Mailer: git-send-email 2.31.1.295.g9ea45b61b8-goog In-Reply-To: <20210414172916.2689361-1-hsinyi@chromium.org> References: <20210414172916.2689361-1-hsinyi@chromium.org> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v19 3/6] i2c: mediatek: mt65xx: add optional vbus-supply X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Qii Wang , Arnd Bergmann , Greg Kroah-Hartman , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, Mark Brown , linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org, Bibby Hsieh , linux-arm-kernel@lists.infradead.org, Marek Szyprowski Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Add vbus-supply which provides power to SCL/SDA. Pass this regulator into core so it can be turned on/off for low power mode support. Signed-off-by: Hsin-Yi Wang --- drivers/i2c/busses/i2c-mt65xx.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 2ffd2f354d0a..82f2b6716005 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -1215,6 +1215,13 @@ static int mtk_i2c_probe(struct platform_device *pdev) i2c->adap.quirks = i2c->dev_comp->quirks; i2c->adap.timeout = 2 * HZ; i2c->adap.retries = 1; + i2c->adap.bus_regulator = devm_regulator_get_optional(&pdev->dev, "vbus"); + if (IS_ERR(i2c->adap.bus_regulator)) { + if (PTR_ERR(i2c->adap.bus_regulator) == -ENODEV) + i2c->adap.bus_regulator = NULL; + else + return PTR_ERR(i2c->adap.bus_regulator); + } ret = mtk_i2c_parse_dt(pdev->dev.of_node, i2c); if (ret)