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 5FE38C4332F for ; Wed, 24 Nov 2021 08:11:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241256AbhKXIOt (ORCPT ); Wed, 24 Nov 2021 03:14:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238955AbhKXIOs (ORCPT ); Wed, 24 Nov 2021 03:14:48 -0500 Received: from mail-io1-xd2e.google.com (mail-io1-xd2e.google.com [IPv6:2607:f8b0:4864:20::d2e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60332C061574; Wed, 24 Nov 2021 00:11:39 -0800 (PST) Received: by mail-io1-xd2e.google.com with SMTP id m9so2194729iop.0; Wed, 24 Nov 2021 00:11:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=2X5/LFLLoXcHwnJiEqimMyAM3gnORo1QfzmyY4+BjE4=; b=npeCSbzYQg6nrUVVZQQ8tgSeTCGq09gYMzHWIG0nLkIXzBo5vgZx6H3/iEUg/F86HW TXWRlrdMfyukSte1IudpCHD3Qs+RqObFVGnEo0PSRcJCdOVDMnfNEn5CrQQ2j9ldGs4m 2ycv4mNR6Um+nxdxUFga3qN7G/84kL/MHYOxzf6i4Yhws4gqzOHqlcHg9ZI0jqSLV2kR n57OBWBuVQvVMDbIfM10hp5DLBApDFXngA4DKKZzPQVCnpTXRdfbI+VuZbgw73V5nRdU 8Q5S9kQJrihbPG0W1hddydAFBWPjhv2vAOX+YMO0/FYkifW4Rf1yxUAcqowzIHFeoQO8 HMtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=2X5/LFLLoXcHwnJiEqimMyAM3gnORo1QfzmyY4+BjE4=; b=isHaDxOKb9A9RXFXyBHgGXo48HYkzdVyHhb3RDTGM7o5xHk9I5nKesLS3a/RBCaIkZ LND015zHAc2GUlNSCYXRQE8ADWOysgWpoHubKs9M5RfenZsRgQFH1anilze1R+JZ2v0E Y08NZHxlDvq8N1WIecFU+dsUk+O3c2UOnCgBrVnreq7jx/VjM7V/kiSorLP7/4T4mTH+ QhBJZslUq/KDIqGI1+qmsvubG856DQvwgfgojEtSLtqjMer461TQkmjoeS3/EyM8mdrU 1sYki9zPA3iwaKkifVzxc3MWXGoo2wlfNirfeOGquWTV4I8oGnma5HsxMCGSAyF3baTe BH0Q== X-Gm-Message-State: AOAM531izeO/YzssB12zEwKphyIOD/lmIPLm0vdeqECybLDHliUxTp/d XmJKzjG+hyHBU1cabJ0r3VHLOqlA8kjYHYO5YOU= X-Google-Smtp-Source: ABdhPJzW+77DXfhD6ZDT96Rg0Qdwq2dVRlgLowhSu0150wCdHrY0rjX6LZy9nWoS6+vd6IY7LS+U9jMgylZH7nxoqfs= X-Received: by 2002:a05:6638:32a2:: with SMTP id f34mr12973174jav.63.1637741498831; Wed, 24 Nov 2021 00:11:38 -0800 (PST) MIME-Version: 1.0 References: <20211110122948.188683-1-alistair@alistair23.me> <20211110122948.188683-4-alistair@alistair23.me> <20211116000634.767dcdc0@aktux> <00d68181-ad3b-17d2-0150-00029d399f0f@roeck-us.net> In-Reply-To: <00d68181-ad3b-17d2-0150-00029d399f0f@roeck-us.net> From: Alistair Francis Date: Wed, 24 Nov 2021 18:11:00 +1000 Message-ID: Subject: Re: [PATCH v15 3/8] mfd: simple-mfd-i2c: Enable support for the silergy,sy7636a To: Guenter Roeck Cc: Andreas Kemnade , Alistair Francis , Lee Jones , Mark Brown , Sascha Hauer , lgirdwood@gmail.com, Rob Herring , Linux Kernel Mailing List , rui.zhang@intel.com, devicetree , linux-arm-kernel , Sascha Hauer , linux-hwmon@vger.kernel.org, amitk@kernel.org, linux-pm@vger.kernel.org, dl-linux-imx , Shawn Guo Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 24, 2021 at 1:39 AM Guenter Roeck wrote: > > On 11/23/21 4:14 AM, Alistair Francis wrote: > > On Tue, Nov 16, 2021 at 9:10 AM Andreas Kemnade = wrote: > >> > >> Hi, > >> > >> this all creates a lot of question marks... > >> One of my main question is whether sy7636a =3D sy7636 (at least the > >> driver in the kobo vendor kernels does not have the "A" at the end, > >> whic does not necessarily mean a difference). > >> > >> https://www.silergy.com/products/panel_pmic > >> lists only a SY7636ARMC, so chances are good that the letters were jus= t > >> stripped away by the driver developers. Printing on chip package is > >> cryptic so it is not that helpful. It is just "BWNBDA" > > > > I don't have a definite answer for you. But I think it's sy7636a > > > > The page you linked to above lists SY7636ARMC as well as SY7627RMC, > > SY7570RMC. That makes me think that the RMC is a generic suffix and > > this actual IC is the SY7636A. > > > > Almost all chips have an ordering suffix, indicating things like > temperature range or packaging. The datasheet says: > > Ordering Information > SY7636 =E2=96=A1(=E2=96=A1=E2=96=A1)=E2=96=A1 > | Temperature Code (C) > | Package Code (RM) > | Optional Spec Code (A) > > The datasheet otherwise refers to the chip as SY7636A. To me this seems like SY7636A is the correct name then. Alistair > > Guenter