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=-11.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 69458C433B4 for ; Mon, 5 Apr 2021 20:54:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39DAD613C4 for ; Mon, 5 Apr 2021 20:54:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237351AbhDEUzD (ORCPT ); Mon, 5 Apr 2021 16:55:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:57930 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236040AbhDEUzC (ORCPT ); Mon, 5 Apr 2021 16:55:02 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 69DB161019; Mon, 5 Apr 2021 20:54:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1617656096; bh=TZECcf04A+kZXqwkIon0Qe2mhbm/d9UADh5U5/niO2Q=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tg2M6LMYvMaN/q6MpkbS21TzTuSuzQiCGU4H4i75lMhc33tS97B/r/edS235IjCUo +reYZogjlEfW7l8FA3Likvu9ad9ZaLFIMEdRuiuhpOyrLTivoW7FNSOEouZi0a1eiY +Gy53dj8p0y0dmK340MKn0SBJ8zKzfruMgWCExBjHWMHLR7HVfeF4vS98yoe1F8a6f MV9icQ5zGSv1lvhhi8N8/Ec03LRuPmx2vF0Y6bFcoaMfyWK96zLQffDUkcAq3dp9GR OzZhcoRd6x6nJl5Unm49oRCpMYgwsvV0teqI0zey3TW376GFD+UrqN1+o6vwOmfUJi 9s2zKPJCNE77g== Date: Mon, 5 Apr 2021 22:54:52 +0200 From: Wolfram Sang To: Sanket Goswami Cc: jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, Shyam Sundar S K , Nehal Bakulchandra Shah Subject: Re: [PATCH v4] i2c: designware: Add driver support for AMD NAVI GPU Message-ID: <20210405205452.GD3945@kunai> Mail-Followup-To: Wolfram Sang , Sanket Goswami , jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, Shyam Sundar S K , Nehal Bakulchandra Shah References: <20210331140730.2058967-1-Sanket.Goswami@amd.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="9UV9rz0O2dU/yYYn" Content-Disposition: inline In-Reply-To: <20210331140730.2058967-1-Sanket.Goswami@amd.com> Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org --9UV9rz0O2dU/yYYn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 31, 2021 at 07:37:30PM +0530, Sanket Goswami wrote: > The Latest AMD NAVI GPU card has an integrated Type-C controller and > Designware I2C with PCI Interface. The PD controller for USB Type-C can > be accessed over I2C. The client driver is part of the USB Type-C UCSI > driver. >=20 > Also, there exists a couple of notable IP limitations that are dealt as > workarounds: > - I2C transaction work on a polling mode as IP does not generate > interrupt. > - I2C read command sent twice to address the IP issues. > - AMD NAVI GPU based products are already in the commercial market, > hence some of the I2C parameters are statically programmed as they > can not be part of the ACPI table. >=20 > Reviewed-by: Shyam Sundar S K > Co-developed-by: Nehal Bakulchandra Shah > Signed-off-by: Nehal Bakulchandra Shah > Signed-off-by: Sanket Goswami Applied to for-next, thanks! --9UV9rz0O2dU/yYYn Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmBreRwACgkQFA3kzBSg KbZpmQ/+M/EzdpGfiogWWOy774LR7sr7Ie5c1RuEa4hbEFdltiTs997CJ09Xofsw VJigg6qFdYMFIRB8K2fdMN++hlHu4kPVK3TGtHcQ9pWT66eCiCQ9Wj1yhcQgJL1U yKU+BNyX/S/FBfYqEZMXymB0pTyoXYpbHdIE3PUGdqhvTrkpW6qvckkVgq4zVndn SD2M6c0VPNG+6Q/E+ghR/HczZYuzQnzvJb7pFdJ9nYcbIv3je9AURh7QMrkHCVNH hfyYTxEWNRHYkvhjiVkBEKrQFVb15xomVpi+ANSKTiFbFJ3/CaVeROJ6xja/83ZF J1yJ96B4Yt34jKycwuhOATOCGGh14lztbVfDNYL4mOjy96+ElxAqEENpSJ+mIMSH uLqkEj5g/Rbot+KRy+gUNaQJ/3v4uo3B7XgvQNYHnXKOE9qvklupy4e8qEn4D0lm B0N1u/pfNe4VdI3b3mfKVHCa0qjg7BII7IIQZVSaeiKB++r53Hhrp5fY9dSFOWxa zfbIS5k5LNykqxJI4QMkg8ivPraHategI8GofGj46xmd2t9jTLfI+qCLp/y3RY93 9dmSEteXy/CKth4ua3M9NJ96pCYt8we078Tko6ethIgsdPN7UKZXNBvJj82yJ5+A 3wBTQMl4yIQQx0rVXdBaxh06Af3Iq7nEn5u2A2sJcOFwH2sEl20= =J46Q -----END PGP SIGNATURE----- --9UV9rz0O2dU/yYYn--