From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (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 798C53F88B8; Mon, 15 Jun 2026 14:30:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781533852; cv=none; b=bZOYXj9yCS9tBKT+tCnqYR6Al+mjdT0xZ4obE7LaLt4f/wdeCc9F35CSTBcSVWJVoYxhegO3I1lMrWZqBQK5qjRCf2GobchJD2QzU6fgUYfWwzxkfto7PNPQ3T6imYMtnAeR5cAppvhD0AkZEQ1bPHh9uyER5arjxU6yhUhmacQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781533852; c=relaxed/simple; bh=eeKfuNDktYjoBS3dmFiTkel/+BwxgBfVU25t5KzqhsU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=mSSiSwB/J9UCXEnw3rdfeGfwPG8wNXwV+KM2JQUnGx3s/G24Gw4md+iMhQBv4GkPd3o7aR+0cvekauVW7lG8FhRyRYfQmEfxK739emFe3Phsw4Fpmy8tNAW0VfJKk3rEkTMijDzJqSG20pJtXvtKIJgalqP/HOnx4KzAddTlgYI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=k7MOjS2i; arc=none smtp.client-ip=192.198.163.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="k7MOjS2i" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1781533850; x=1813069850; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=eeKfuNDktYjoBS3dmFiTkel/+BwxgBfVU25t5KzqhsU=; b=k7MOjS2iO3QQ4JdonELUcxOr+bR0mSvGa9tSoIiILGjkzon5riOF779p PizU6HLQm3sWL3TAsdfA+FbY7/uWiV/dMgYUu5NB4NIlyIdKfnJB+f507 HySfeMMmW2ErzyGzh/gmbJ14sIl9mbGrnR+kuPFZKZYubYS3NBwQa1Uxi /r7jmXOBbEnNVsYw/RrKJ06E2NUx7XhTdLuEKnckDckTQhpjAmWVpEKMa PgZfWk562bH16gkTO1SAtr10hpGGleFeVfJZJ57Yy3pvuR+H22JnAO8Cp WfewZB1cRKtF4hgI7GqJ71B285BjbUBJRHpM4tWSFGpybzAJRTuZ2uPMm A==; X-CSE-ConnectionGUID: HQ+usF8kT7CZnhZxpX+RRw== X-CSE-MsgGUID: o7OdfnndSLaZ0IjXjf207A== X-IronPort-AV: E=McAfee;i="6800,10657,11818"; a="82312242" X-IronPort-AV: E=Sophos;i="6.24,206,1774335600"; d="scan'208";a="82312242" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jun 2026 07:30:43 -0700 X-CSE-ConnectionGUID: 8O33OnCSSiaC1yGI5gSpng== X-CSE-MsgGUID: 0zr5w2RgRNOnZZ+ge9rOZA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,206,1774335600"; d="scan'208";a="251410643" Received: from ettammin-mobl3.ger.corp.intel.com (HELO localhost) ([10.245.245.235]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jun 2026 07:30:40 -0700 Date: Mon, 15 Jun 2026 17:30:37 +0300 From: Andy Shevchenko To: Salih Erim Cc: jic23@kernel.org, andy@kernel.org, dlechner@baylibre.com, nuno.sa@analog.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, conall.ogriofa@amd.com, michal.simek@amd.com, linux@roeck-us.net, erimsalih@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v7 3/5] iio: adc: versal-sysmon: add I2C driver Message-ID: References: <20260614233722.2603459-1-salih.erim@amd.com> <20260614233722.2603459-4-salih.erim@amd.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260614233722.2603459-4-salih.erim@amd.com> Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Mon, Jun 15, 2026 at 12:37:20AM +0100, Salih Erim wrote: > Add an I2C transport driver for the Versal SysMon block. The SysMon > provides an I2C slave interface that allows an external master to > read voltage and temperature measurements through the same register > map used by the MMIO path. > > The I2C command frame is an 8-byte structure containing a 4-byte data > payload, a 2-byte register offset, and a 1-byte instruction field. > Read operations send the frame with a read instruction, then receive > a 4-byte response containing the register value. > > Events are not supported on the I2C path because there is no > interrupt line and the I2C regmap backend cannot be called from > atomic context. ... > +static const struct regmap_config sysmon_i2c_regmap_config = { > + .reg_bits = 32, > + .val_bits = 32, > + .reg_stride = SYSMON_REG_STRIDE, > + .max_register = SYSMON_MAX_REG, > + .reg_read = sysmon_i2c_reg_read, > + .reg_write = sysmon_i2c_reg_write, > +}; No cache? -- With Best Regards, Andy Shevchenko