From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1240E25DAE8 for ; Mon, 14 Apr 2025 09:02:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744621351; cv=none; b=p3ERyeH1zpLSlhra4+xPQEWBOx91L2MYi4LEA8u8+rUO91VkMrjWDfw3Lodlmk6LVqTSyfaj7kngXiNHf0YQW7d6cyGzyJUCrbbNDKS3vtw+2D/qpAzaYo0v6iagRY4fmLqi83bh2mqTlijRg1XXeYY8m/s8lF0FsUBi0+PgSu8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744621351; c=relaxed/simple; bh=4cdmsK/uKkETSIQWqBZBqK8Pu/M5h3AKl5Q2xtRimGE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=kHBSqHyLRgtgqFNwwss9LEj1FIpdLksLbaIzk59zHzoJdhz+7VckPqT/46osVl7pmVtxWxViSR/NzUyL7TTg02kYEMGRW3SJeXmrPTYND/AsjFwxzThKo1aH4ASW2MqzaslZg+XXiSo4z8hzNMmgF7RJtzszECLQ9A2izyM+eDg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=Xhc4bTJc; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="Xhc4bTJc" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=W7tY p7DaFnPYvh9NFhMVf7+0v1O7F86Kuk3J1L7NfeM=; b=Xhc4bTJcWnmY0cOrfGvD tH17PA18r1buEb60Jf91fChtWchhxpfuQypXHtJ3Vzrwrx/4KRxdPw0OIyWUud8b wkC6ztt3L8XKvBbBysHbV5ubvcZb9jo/rT3V507PD8vIJS4+92nWEh3qiHTEZtNK mTIeF8yFvkziIWxddpVxuXpMaEzrOMR435jI6KYsMoh+FSk0qUMnRdI7imRhn2lq lHTLrS1EtFhoMtAfXzfcHnD4pt88FFcMCnlSSd88+pgxU7d9xTVkj9YncVPF7SYY MSQ8fm491SU9eJXW1So226CfPiDf1FUCTeLqOIvW05mpRKuMuHN6iQ6TbLEkk0Kh 6Q== Received: (qmail 2217783 invoked from network); 14 Apr 2025 11:02:27 +0200 Received: by mail.zeus03.de with UTF8SMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 14 Apr 2025 11:02:27 +0200 X-UD-Smtp-Session: l3s3148p1@JauqT7kyUsIujnth Date: Mon, 14 Apr 2025 11:02:26 +0200 From: Wolfram Sang To: ende.tan@starfivetech.com Cc: linux-i2c@vger.kernel.org, jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, jsd@semihalf.com, andi.shyti@kernel.org, linux-kernel@vger.kernel.org, leyfoon.tan@starfivetech.com, endeneer@gmail.com Subject: Re: [v2,1/1] i2c: designware: Add SMBus Quick Command support Message-ID: Mail-Followup-To: Wolfram Sang , ende.tan@starfivetech.com, linux-i2c@vger.kernel.org, jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, jsd@semihalf.com, andi.shyti@kernel.org, linux-kernel@vger.kernel.org, leyfoon.tan@starfivetech.com, endeneer@gmail.com References: <20250412093414.39351-1-ende.tan@starfivetech.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="cAFb+b2Ay2PJZQ6f" Content-Disposition: inline In-Reply-To: <20250412093414.39351-1-ende.tan@starfivetech.com> --cAFb+b2Ay2PJZQ6f Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > +#define DW_IC_TAR_SMBUS_QUICK_CMD BIT(16) This bit does not exist on the instance in the Renesas RZ/N1D SoC. So, this patch needs some versioning which HW can do this and which can't. --cAFb+b2Ay2PJZQ6f Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmf8zyIACgkQFA3kzBSg KbbELA//TTYJN4MKwx8+ExUBG89h5ugoycN6+mPOqUPssOX7Skq32IaWN0t6Lvj1 qF7bHlbPbg6hb3S1pK/Igbs1rTXh09zwTabACAzrY76tli3VM7n/qrETXO8Y7xz7 X5lUGnFbqjQP+ZWVObIcaABvR+hHoJTvgcYRktGmGebe8Qxflf39S0mK742MPzV/ pRqVHnvK5+ZbQWcv/yFl1Gj72DKAE/pyNxCkESZMRSTEte/Y15DekTZqTGrHWugY edYcrHaW3cPkf6+4GEFzItz4hc00VK3Z7sXM8Izd5UW3br78mEWlXdYtSVGwFjp9 0lTu99UbCZShDbQDN9YVuUaD7d36KsVWMPYokUllrgbdhJQhEmBmyd6VUk1EuJTQ D2/OHJcQCJGPndqdQ+/W6g/lifug66ADp1prwDnJ46s1zugz0rtXduSJEr0jS5zy qlTUBMzP+C8WjiNlmeguhRlnqhr4rpBcTQYmVMYUW7WGSdAOO92x9uVeaL3o6wJ3 xxXGKUvKZG5eC/uVPMI9ARK2XEiu1I/JjOExKVZbWY7w8RfOYNJP1Snwtub7ScRe E4KnVAsBwCxTrsYZNu8IBCfpQ0mWiZgM2MFKsVJhMvFFNFHXWj2J/VksHBQnaDtA I0yhZQBjz1aZKar8DEwL31vMtqVzhFgWa/Vo/or/LydPB6VHcNU= =JMav -----END PGP SIGNATURE----- --cAFb+b2Ay2PJZQ6f--