From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) (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 0F5D7137923; Wed, 2 Jul 2025 08:04:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751443496; cv=none; b=HRVIFZoEBhhfY8tQEISLFOIIVZlT2aV3RznnqFFPyyeLJiOBBYssg4Yub2W970akvZwVAz2bllGradTFRg9yslz75ChgR5aPgXBUtodMJO4CF7pxgelF3GvobByWvjIg0FT/0xewKCA7GNEsqxEflbawtX9ufsAYuvWhQRoDl/U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751443496; c=relaxed/simple; bh=l0pSZlRPG8LstMnELObDfWKePkirOAxhEP7OlBTiROU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bRFRLg1eH/Jym3et1O/TXWijKNa8YyKlhry77y3fmv5x80fXgWYMFr5cprQ+88vYmk77ZYtaDTXIDix9NxwBtQyW2jBcQnT2BWc/IgTJkaj6inGfWq96QiZMzysnZNF3gmEEyTvFadOqTg6jWD77Mn3w8TtAEMDIFs8y+YiBq8w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=cM49nz4T; arc=none smtp.client-ip=192.198.163.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="cM49nz4T" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1751443495; x=1782979495; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=l0pSZlRPG8LstMnELObDfWKePkirOAxhEP7OlBTiROU=; b=cM49nz4TBTComOWsfLgZfKYPbq8Gd0mwC6WIw6UFT+wwbWjL0MApbrWB T3/PP8yng5/OSEvDerrVnnf+c7m81SaiUC4iKTU8y1TQQEMOdaxTK+Uw4 t+qmtOxvBc5YX91KVsvcv2C5ig6Png8iqMd7hEjQMwOPqIyeWvWQ2EHik 7OgqHQIAz+ShPiHQG+jcmhD1f8s2lhjGdUdd3GytfWzVE/WuUTF2RBlFT lrhyMnQ37QJ/JCOOjouwb5LLFkx3WZ9Qy09mwavpzIdxDTkdvcjm/aLH5 CWfb4F6QmHV0n67KP3+iH/QTLsZlkdJ420N1Ps5xDwnzPF9J30GEegVld w==; X-CSE-ConnectionGUID: jLaDj3QgSPKpONs/K6xi7w== X-CSE-MsgGUID: zEu/3CbLRgSKr2oIWkYOMQ== X-IronPort-AV: E=McAfee;i="6800,10657,11481"; a="57536231" X-IronPort-AV: E=Sophos;i="6.16,281,1744095600"; d="scan'208";a="57536231" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2025 01:04:54 -0700 X-CSE-ConnectionGUID: ZjpuVCdBQyWgkIfdFROO8Q== X-CSE-MsgGUID: 9nb3zhAlSeq/KFRxve4Q5Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,281,1744095600"; d="scan'208";a="154556266" Received: from smile.fi.intel.com ([10.237.72.52]) by fmviesa008.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2025 01:04:51 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.98.2) (envelope-from ) id 1uWsSW-0000000BrMJ-28tk; Wed, 02 Jul 2025 11:04:48 +0300 Date: Wed, 2 Jul 2025 11:04:48 +0300 From: Andy Shevchenko To: David Lechner Cc: Michael Hennerich , Jonathan Cameron , Nuno =?iso-8859-1?Q?S=E1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mark Brown , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-spi@vger.kernel.org Subject: Re: [PATCH v3 00/12] iio: adc: ad7173: add SPI offload support Message-ID: References: <20250701-iio-adc-ad7173-add-spi-offload-support-v3-0-42abb83e3dac@baylibre.com> Precedence: bulk X-Mailing-List: linux-iio@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: <20250701-iio-adc-ad7173-add-spi-offload-support-v3-0-42abb83e3dac@baylibre.com> Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Tue, Jul 01, 2025 at 04:37:48PM -0500, David Lechner wrote: > Here comes another series for adding SPI offload support to an ADC. > > The primary target is AD411x, but since this uses the ad_sigma_delta > shared module, a lot of this series is focused on that. > > To start with, we have some cleanups to the ad_sigma_delta code, so feel > free to pick these up as they are ready as they generally stand on their > own. > > Then before adding proper SPI offload support, we make use of > spi_optimize_message() to reduce CPU usage of all users of this driver > during buffered reads. > > Also there is a new dt-binding and driver for a special SPI offload > trigger FPGA IP core that is used in this particular setup. > > Then finally actual SPI offload support is added to the ad_sigma_delta > module and the ad7173 driver. > > This was tested using EVAL-AD4112ARDZ on a DE10-Nano. This version LGTM, Reviewed-by: Andy Shevchenko -- With Best Regards, Andy Shevchenko