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=-17.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_SANE_2 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 BD6A8C43460 for ; Mon, 17 May 2021 08:12:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A13F60C3D for ; Mon, 17 May 2021 08:12:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235378AbhEQIN1 (ORCPT ); Mon, 17 May 2021 04:13:27 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:54365 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S231919AbhEQIN0 (ORCPT ); Mon, 17 May 2021 04:13:26 -0400 X-UUID: 883adc4170cf43f8a0473e3efb14c757-20210517 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=zLyMCemFhgBqwL7usnjoYVnjjOx47JZAGAfTiTk0jK0=; b=SOhGF5CB8cCEMbD/alFbXeOENjeSw8RaHJnVpmpdCfcENYrzKlS+DjATgqU1VAALHPp1fgHRNWk5tdvlMlaYF1TLxmFD4uzvLPoVjFmkj/79uME+E6UgBAZL9pcVl2ni/rhW3nLt8zUwO3pYjnb2gbaUYlgijNk14hI95HMwwbc=; X-UUID: 883adc4170cf43f8a0473e3efb14c757-20210517 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 116137431; Mon, 17 May 2021 16:06:58 +0800 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 17 May 2021 16:06:56 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 17 May 2021 16:06:53 +0800 Message-ID: <1621238813.24305.5.camel@mhfsdcap03> Subject: Re: [PATCH v21 3/5] i2c: mediatek: mt65xx: add optional vbus-supply From: Qii Wang To: Hsin-Yi Wang CC: Wolfram Sang , Matthias Brugger , Rob Herring , "Bartosz Golaszewski" , , , , , , "Greg Kroah-Hartman" , Mark Brown , Marek Szyprowski , "Bibby Hsieh" , Arnd Bergmann Date: Mon, 17 May 2021 16:06:53 +0800 In-Reply-To: <20210507131406.2224177-4-hsinyi@chromium.org> References: <20210507131406.2224177-1-hsinyi@chromium.org> <20210507131406.2224177-4-hsinyi@chromium.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gRnJpLCAyMDIxLTA1LTA3IGF0IDIxOjE0ICswODAwLCBIc2luLVlpIFdhbmcgd3JvdGU6DQo+ IEFkZCB2YnVzLXN1cHBseSB3aGljaCBwcm92aWRlcyBwb3dlciB0byBTQ0wvU0RBLiBQYXNzIHRo aXMgcmVndWxhdG9yDQo+IGludG8gY29yZSBzbyBpdCBjYW4gYmUgdHVybmVkIG9uL29mZiBmb3Ig bG93IHBvd2VyIG1vZGUgc3VwcG9ydC4NCj4gDQo+IFNpZ25lZC1vZmYtYnk6IEhzaW4tWWkgV2Fu ZyA8aHNpbnlpQGNocm9taXVtLm9yZz4NCg0KUmV2aWV3ZWQtYnk6IFFpaSBXYW5nIDxxaWkud2Fu Z0BtZWRpYXRlay5jb20+DQoNCj4gLS0tDQo+ICBkcml2ZXJzL2kyYy9idXNzZXMvaTJjLW10NjV4 eC5jIHwgNyArKysrKysrDQo+ICAxIGZpbGUgY2hhbmdlZCwgNyBpbnNlcnRpb25zKCspDQo+IA0K PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9pMmMvYnVzc2VzL2kyYy1tdDY1eHguYyBiL2RyaXZlcnMv aTJjL2J1c3Nlcy9pMmMtbXQ2NXh4LmMNCj4gaW5kZXggNWRkZmE0ZTU2ZWUyLi4yMmQxZDE0YjVk ZTUgMTAwNjQ0DQo+IC0tLSBhL2RyaXZlcnMvaTJjL2J1c3Nlcy9pMmMtbXQ2NXh4LmMNCj4gKysr IGIvZHJpdmVycy9pMmMvYnVzc2VzL2kyYy1tdDY1eHguYw0KPiBAQCAtMTIyMCw2ICsxMjIwLDEz IEBAIHN0YXRpYyBpbnQgbXRrX2kyY19wcm9iZShzdHJ1Y3QgcGxhdGZvcm1fZGV2aWNlICpwZGV2 KQ0KPiAgCWkyYy0+YWRhcC5xdWlya3MgPSBpMmMtPmRldl9jb21wLT5xdWlya3M7DQo+ICAJaTJj LT5hZGFwLnRpbWVvdXQgPSAyICogSFo7DQo+ICAJaTJjLT5hZGFwLnJldHJpZXMgPSAxOw0KPiAr CWkyYy0+YWRhcC5idXNfcmVndWxhdG9yID0gZGV2bV9yZWd1bGF0b3JfZ2V0X29wdGlvbmFsKCZw ZGV2LT5kZXYsICJ2YnVzIik7DQo+ICsJaWYgKElTX0VSUihpMmMtPmFkYXAuYnVzX3JlZ3VsYXRv cikpIHsNCj4gKwkJaWYgKFBUUl9FUlIoaTJjLT5hZGFwLmJ1c19yZWd1bGF0b3IpID09IC1FTk9E RVYpDQo+ICsJCQlpMmMtPmFkYXAuYnVzX3JlZ3VsYXRvciA9IE5VTEw7DQo+ICsJCWVsc2UNCj4g KwkJCXJldHVybiBQVFJfRVJSKGkyYy0+YWRhcC5idXNfcmVndWxhdG9yKTsNCj4gKwl9DQo+ICAN Cj4gIAlyZXQgPSBtdGtfaTJjX3BhcnNlX2R0KHBkZXYtPmRldi5vZl9ub2RlLCBpMmMpOw0KPiAg CWlmIChyZXQpDQoNCg== 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=-15.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_SANE_2 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 B50CAC433B4 for ; Mon, 17 May 2021 08:19:34 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 3CA02610A1 for ; Mon, 17 May 2021 08:19:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3CA02610A1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Date:CC:To:From: Subject:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ZmB5Ma7VWNgOgBvtrToOeoknfz5fnlVwbxE306TgGGA=; b=UDLBHs5iggfQ9CTwmiWFJDZ4M SvKTveArvZIuG/6MU6J699oGX9iV2UYwJXEjuwwM8tfisV4r8Wf3qWLpTj2k1DtIuAr3zoqHL8dLq UaM9NTLvWbcf6NFO8p5BRvS/swD6VxY8EbbLU/WIEtVxmN91qMEgFz380o/+ToRRu82iGE1DnEoEb fWME+Mu3E8zo11RdcSO+5CCXjFznhltTmLcPl5ueLUqnDbfsXZA+E5jF7Fj5sgYdfdYWyAcPyhYcj 052dimu3iNLMpiCWybrAt0Ekqnj9N3Zy/MrT5t0ai5v+l/biKAOqz1NEQHWAOCCaW/ub4DewW9Ke7 WlTL3mSFA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1liYT7-00ECg6-JD; Mon, 17 May 2021 08:19:17 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1liYHN-00EAMu-Ve; Mon, 17 May 2021 08:07:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject: Message-ID:Sender:Reply-To:Content-ID:Content-Description; bh=zLyMCemFhgBqwL7usnjoYVnjjOx47JZAGAfTiTk0jK0=; b=W6VE8eAuwD4CvCdsa9Ig3iyb/6 6zL21QgnnNovA2HtfpHSk+WXXcym/l1MiomOyErPH7o+yCEW4iGhWEgOHtNUCx3+36tV31AR8xFOz NSWNamCHKMfp77MX5YWcnxEPxcE+nXXUy2K2IVDKDF479Z221DVCK/rZ2AfoRnhLHBkEo1x1+YUU3 LQ6UOay6eoUrVbdLXHydOl4sbKFVch54KTl6k9u4mO+FBfkbcZxPeKxTDIJGGpItK4bpeT6zfReR0 2bjUvKznXv0sP1gEvA13iCH1pyJms7cwVxBW+KP4VO8s9Ef0LZUS+G4STB7zeSH3a3fyuhEPaFsdg 3ZProfig==; Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1liYHI-00DZr0-GO; Mon, 17 May 2021 08:07:08 +0000 X-UUID: 885cf9712d714dd3abe67dadca2e7a48-20210517 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=zLyMCemFhgBqwL7usnjoYVnjjOx47JZAGAfTiTk0jK0=; b=psCxGPqpqOzkAfdtwOkYznbslWDrNMU7GUj+x0fm7PPH8QEoRYeBWFPQE2Fw3Zijxqbs6SojQLvKEAgMovxAxGz2SeotV6Njo5fZ5vN1ZUHNERvMYiYdOtTCr/tGc96vq2RdEU3+BUEsf1PY2cFbY+9HT3FVd6PcA6cfLplDUD8=; X-UUID: 885cf9712d714dd3abe67dadca2e7a48-20210517 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 896944106; Mon, 17 May 2021 01:06:59 -0700 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 17 May 2021 01:06:58 -0700 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 17 May 2021 16:06:56 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 17 May 2021 16:06:53 +0800 Message-ID: <1621238813.24305.5.camel@mhfsdcap03> Subject: Re: [PATCH v21 3/5] i2c: mediatek: mt65xx: add optional vbus-supply From: Qii Wang To: Hsin-Yi Wang CC: Wolfram Sang , Matthias Brugger , Rob Herring , Bartosz Golaszewski , , , , , , "Greg Kroah-Hartman" , Mark Brown , Marek Szyprowski , Bibby Hsieh , Arnd Bergmann Date: Mon, 17 May 2021 16:06:53 +0800 In-Reply-To: <20210507131406.2224177-4-hsinyi@chromium.org> References: <20210507131406.2224177-1-hsinyi@chromium.org> <20210507131406.2224177-4-hsinyi@chromium.org> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210517_010704_572471_78E952E0 X-CRM114-Status: GOOD ( 16.58 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Fri, 2021-05-07 at 21:14 +0800, Hsin-Yi Wang wrote: > 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 Reviewed-by: Qii 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 5ddfa4e56ee2..22d1d14b5de5 100644 > --- a/drivers/i2c/busses/i2c-mt65xx.c > +++ b/drivers/i2c/busses/i2c-mt65xx.c > @@ -1220,6 +1220,13 @@ 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) _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek 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=-15.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_SANE_2 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 AFB70C433B4 for ; Mon, 17 May 2021 08:21:25 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 32651610A1 for ; Mon, 17 May 2021 08:21:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 32651610A1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Date:CC:To:From: Subject:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4k5e5FI+zjlNSXx1WbZgPFVcM+1vtgIL4M4MjJhEi0Y=; b=a/1ZE8UdyTT4tl3I5Stze3PpN PadGI7OKDypevBf97abB+lSqvkWGQMhVADNw+KdJwBMLeyVsMnnpXOOqypsB7rViQwaA9JnbGYTpL m8djJoYMN2dfWYXUG7SjFKeV+rIPh5s9kFiN/dfoFgfqbSZeDGjamWdOK38r6E0bLhOk4W1lEY4w6 JQq+STrPiKpGwdiUnt5Mv5Xh+v4jl2IBjr6wK7C6edKlvPT/2HHijziaBfH/OICjNztVRJFvbSAII cMxJE+ziJQ13dQW4WivL4umfSOeI7my3LoEspnWBsA/ZLorzncdMv5Ol1XPTLIdix6Px02K13zKIU xqNA7BYzA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1liYTB-00ECgj-RW; Mon, 17 May 2021 08:19:22 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1liYHN-00EAMu-Ve; Mon, 17 May 2021 08:07:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject: Message-ID:Sender:Reply-To:Content-ID:Content-Description; bh=zLyMCemFhgBqwL7usnjoYVnjjOx47JZAGAfTiTk0jK0=; b=W6VE8eAuwD4CvCdsa9Ig3iyb/6 6zL21QgnnNovA2HtfpHSk+WXXcym/l1MiomOyErPH7o+yCEW4iGhWEgOHtNUCx3+36tV31AR8xFOz NSWNamCHKMfp77MX5YWcnxEPxcE+nXXUy2K2IVDKDF479Z221DVCK/rZ2AfoRnhLHBkEo1x1+YUU3 LQ6UOay6eoUrVbdLXHydOl4sbKFVch54KTl6k9u4mO+FBfkbcZxPeKxTDIJGGpItK4bpeT6zfReR0 2bjUvKznXv0sP1gEvA13iCH1pyJms7cwVxBW+KP4VO8s9Ef0LZUS+G4STB7zeSH3a3fyuhEPaFsdg 3ZProfig==; Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1liYHI-00DZr0-GO; Mon, 17 May 2021 08:07:08 +0000 X-UUID: 885cf9712d714dd3abe67dadca2e7a48-20210517 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=zLyMCemFhgBqwL7usnjoYVnjjOx47JZAGAfTiTk0jK0=; b=psCxGPqpqOzkAfdtwOkYznbslWDrNMU7GUj+x0fm7PPH8QEoRYeBWFPQE2Fw3Zijxqbs6SojQLvKEAgMovxAxGz2SeotV6Njo5fZ5vN1ZUHNERvMYiYdOtTCr/tGc96vq2RdEU3+BUEsf1PY2cFbY+9HT3FVd6PcA6cfLplDUD8=; X-UUID: 885cf9712d714dd3abe67dadca2e7a48-20210517 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 896944106; Mon, 17 May 2021 01:06:59 -0700 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 17 May 2021 01:06:58 -0700 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 17 May 2021 16:06:56 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 17 May 2021 16:06:53 +0800 Message-ID: <1621238813.24305.5.camel@mhfsdcap03> Subject: Re: [PATCH v21 3/5] i2c: mediatek: mt65xx: add optional vbus-supply From: Qii Wang To: Hsin-Yi Wang CC: Wolfram Sang , Matthias Brugger , Rob Herring , Bartosz Golaszewski , , , , , , "Greg Kroah-Hartman" , Mark Brown , Marek Szyprowski , Bibby Hsieh , Arnd Bergmann Date: Mon, 17 May 2021 16:06:53 +0800 In-Reply-To: <20210507131406.2224177-4-hsinyi@chromium.org> References: <20210507131406.2224177-1-hsinyi@chromium.org> <20210507131406.2224177-4-hsinyi@chromium.org> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210517_010704_572471_78E952E0 X-CRM114-Status: GOOD ( 16.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 2021-05-07 at 21:14 +0800, Hsin-Yi Wang wrote: > 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 Reviewed-by: Qii 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 5ddfa4e56ee2..22d1d14b5de5 100644 > --- a/drivers/i2c/busses/i2c-mt65xx.c > +++ b/drivers/i2c/busses/i2c-mt65xx.c > @@ -1220,6 +1220,13 @@ 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) _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel