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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2F7AC4332F for ; Wed, 15 Dec 2021 18:37:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343849AbhLOShd (ORCPT ); Wed, 15 Dec 2021 13:37:33 -0500 Received: from mail-ot1-f50.google.com ([209.85.210.50]:40682 "EHLO mail-ot1-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234977AbhLOShc (ORCPT ); Wed, 15 Dec 2021 13:37:32 -0500 Received: by mail-ot1-f50.google.com with SMTP id v15-20020a9d604f000000b0056cdb373b82so26004432otj.7; Wed, 15 Dec 2021 10:37:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=1SeB84S69bpsa1PObCsguFCuIUK1jo7w+NpM6xYNgYQ=; b=Rnh2ScQCEF00qB4lnQkgT6Nun2wNiZfwDmLuy0wYrDYy+qOaCiqPB6tHmOABQl9oF4 p5K9YDLXEkUMwBybvJfcOoAyliXQYgt5T69oUtOJP0YUQHxMAQDwn29yaICiANKtspbL PVUbhgB21M+ye3BM69lHum+ZWUSBaXyG3bT9LGZBNdKhDNA1yebRGHN2jlm6EuSeVsQA H1bh//6AxYcgAwUZGrpFeCygDc/4RWvICkOV1JfHMGmKZLhaFR2hRV43F9kZTmeEIfLU tJQr4O1CCFuy3q31qHOppyyi7EG4eYZQwsTGv7qX7Giio+MENpC3+9/82HG4IBR8vkLg vjKQ== X-Gm-Message-State: AOAM532aknhuKlGSoEH2mzmpkDO2G1U8T4zU05auxUXuOZNJ6vvEAPwa xqglP1yEN766dWiUpFjemA== X-Google-Smtp-Source: ABdhPJwjTsE+G4GlNjpU1uHHk79mPFLVzI/DID9ltvFzWeKtA+cshnlVlgrxc/OfhJkOkys0N0IFIw== X-Received: by 2002:a05:6830:1ddd:: with SMTP id a29mr9883407otj.311.1639593451526; Wed, 15 Dec 2021 10:37:31 -0800 (PST) Received: from robh.at.kernel.org (66-90-148-213.dyn.grandenetworks.net. [66.90.148.213]) by smtp.gmail.com with ESMTPSA id b22sm474096oib.41.2021.12.15.10.37.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Dec 2021 10:37:30 -0800 (PST) Received: (nullmailer pid 1614869 invoked by uid 1000); Wed, 15 Dec 2021 18:37:29 -0000 Date: Wed, 15 Dec 2021 12:37:29 -0600 From: Rob Herring To: Akhil R Cc: andy.shevchenko@gmail.com, christian.koenig@amd.com, digetx@gmail.com, dri-devel@lists.freedesktop.org, jonathanh@nvidia.com, ldewangan@nvidia.com, linaro-mm-sig@lists.linaro.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-tegra@vger.kernel.org, p.zabel@pengutronix.de, sumit.semwal@linaro.org, thierry.reding@gmail.com, devicetree@vger.kernel.org Subject: Re: [PATCH 1/2] dt-bindings: i2c: tegra: Add SMBus feature properties Message-ID: References: <1639062321-18840-1-git-send-email-akhilrajeev@nvidia.com> <1639062321-18840-2-git-send-email-akhilrajeev@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1639062321-18840-2-git-send-email-akhilrajeev@nvidia.com> Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org On Thu, Dec 09, 2021 at 08:35:20PM +0530, Akhil R wrote: > Tegra I2C can use a gpio as an smbus-alert. Document the usage of > the same. > > Signed-off-by: Akhil R > --- > Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt > index 3f2f990..71ee79b 100644 > --- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt > +++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt > @@ -70,6 +70,10 @@ Required properties: > - rx > - tx > > +optional properties: > +- smbalert-gpio: Must contain an entry for the gpio to be used as smbus alert. > + It will be used only if optional smbus-alert property is present. There's already a standard way to do this with interrupts. And GPIOs can be interrupts usually. > + > Example: > > i2c@7000c000 { > -- > 2.7.4 > >