From nobody Wed Oct 8 14:18:29 2025 Received: from mail-oi1-f172.google.com (mail-oi1-f172.google.com [209.85.167.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6CAD22EE60B for ; Fri, 27 Jun 2025 23:41:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751067699; cv=none; b=LiyZMMlx7SUFgSGBbFWp2+Uz1S4qFsas98+kHf6fsgS2ffNAZ6sRs4HEUQVfx4B+0iND93tNi69RMPsMb0nkhZBds7GXm0bEPBIMotZPCnj5LPLEvm1SfveBafPmR1b3AzBRc3MJNPdXJPhy5UN85BL3OYB1gdgCavcCjLLg5Bc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751067699; c=relaxed/simple; bh=x4deODr2J/B/ZfZk3+/1/BV8bYxvy5G2y6ggy6cAeUc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Dgr/MG+QFzGbhmZ/gbACW2LhxAsD5C4qIr76Hxf6zFHwUHY7msKYsQCL1zyhDxGLC+OD+kc/DKRPKWWWkWA0RVDCkS8kmKbA0ZQGvt6+u1jSgJw8jArJ1c89X+5PFDv87TgjBKYiKPRySK/dD33t/mgwayayTt7YUIHM7mSgKV4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=HZ4p/gRd; arc=none smtp.client-ip=209.85.167.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="HZ4p/gRd" Received: by mail-oi1-f172.google.com with SMTP id 5614622812f47-408d14c7e92so323909b6e.3 for ; Fri, 27 Jun 2025 16:41:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1751067696; x=1751672496; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=suln3ZPyOtbgf+467Jl0jyyrQzWY3/ACSgQiyK4V5QE=; b=HZ4p/gRdPh9Joh/7m7D6Fva0cJ36VmR9Bp/hrTC+77N5yUItE5lJfdPEJFXWEev5m6 947NppeOafZKWiNccQ5/xdDqSnjNzkMqLdnYksmz+Oc+0xkTfw9bvkmA4/MgL+wsVuje DvTCyKfnGMADWcwkjesHei2uzo68Dv0NeDS3rgB7yWSE5n25Nuuptd33rZwXbZYHEicU RQiFij1aE8HSUvApcvQNVitDrVSGDjmgJnA2bY6Mm/GjeIHo0eKCtaqwbII6uVd58yeh UeTIVdDoDw+FM7RHdcq6Xd9frmLkIvZrbPAXiFM0nPOSnmIG+Ddv8HTt+ejPIYucfODg +nZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751067696; x=1751672496; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=suln3ZPyOtbgf+467Jl0jyyrQzWY3/ACSgQiyK4V5QE=; b=LF2GmKbxo4utpBpR56Vpr74w7pIk+WRTKeWHEx0u41Yrt1QKAlp2/PGkidczvgHgzZ nDZzlM8EBFBT7dbqCUinrOpvIIVtWgIScrWX+2QsWmxRB8uYrwdBKqQQ2tRWgpnUW+F6 RlQUXskVZ+JnCp9mjMaAuPguKeX/4767JLLNzV9oER3ch0Zl9d3IT9J7EooN3+bjzAAI dPrdPuYRw7uGJYAiCYABb8VY225ZL2AgICwAwxGZfnQ0jdkLtGhLMUj+cdCRdpJRUH57 ES3eLe5CV6GniMh+a0Fag4corDwSwUzePlabTWSf8MHLj43g0YXiFVfN8AE+2EodVy5M 9RSA== X-Forwarded-Encrypted: i=1; AJvYcCWAT7oQn0DWK5ND8sEcsgwAPhLcDR2ASkiLmPAYLty/ay87ucbdM95fufvCSKnW78NuD10Q30UwNRot40U=@vger.kernel.org X-Gm-Message-State: AOJu0YzLG8uKPjtC1g7H91QLfV5TioqwKHD2ZrHfx4jdNWr3dQ4n/V7s Q3MfD9EpheVRvGLAAJH1okUD0s4veCaMrELKk/71t1NEW5F9bw+Cie/MX1UrcftYkfY= X-Gm-Gg: ASbGncu2hXKW3a1WsKKVJwOPgFM3wxxltlLVLR3ofshAsF9MHC/fAHN/smLP+yW+Kw1 KG7CNTlskqnZtN5M7+w/PGzLjo+Q8IZ7n5Y3fMXLad/6qU5stSjeojaKdIubszLBVeMcKOqSXFE zRE40RwBPFoTWP4F7Ax8lNcV8b0X9le+TaHQmR3yopmeZBF0F2zLhioLNIBzf5paJ76+EkprjuR Rdow/d6Mb0e+/R+j7qCnVUQVA8IKmnhovUmUD2oUoORRldmkiwAhPZQtuF6EqLxEUNMktunclhu RaHCTYM1JR8xD+ObAc5IEx0TGtnMcvfdEqkgI0dHUtyYNHXteBR8QnMuPyZQULgnF1k= X-Google-Smtp-Source: AGHT+IEszVnxwzyUu8l9k/WvR7kBjoiy6AXFg08wYNDhVx48W7AflOGCRwyijBhqehZP+bmW1LpC8g== X-Received: by 2002:a05:6808:16a0:b0:409:f8e:7274 with SMTP id 5614622812f47-40b33e1f70emr3785765b6e.18.1751067696431; Fri, 27 Jun 2025 16:41:36 -0700 (PDT) Received: from [127.0.1.1] ([2600:8803:e7e4:1d00:1715:453e:e133:7d6]) by smtp.gmail.com with ESMTPSA id 5614622812f47-40b322ae4e9sm568483b6e.17.2025.06.27.16.41.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Jun 2025 16:41:36 -0700 (PDT) From: David Lechner Date: Fri, 27 Jun 2025 18:40:07 -0500 Subject: [PATCH v2 11/11] iio: adc: ad7173: add SPI offload support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250627-iio-adc-ad7173-add-spi-offload-support-v2-11-f49c55599113@baylibre.com> References: <20250627-iio-adc-ad7173-add-spi-offload-support-v2-0-f49c55599113@baylibre.com> In-Reply-To: <20250627-iio-adc-ad7173-add-spi-offload-support-v2-0-f49c55599113@baylibre.com> To: Michael Hennerich , Jonathan Cameron , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mark Brown Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-spi@vger.kernel.org, David Lechner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2110; i=dlechner@baylibre.com; h=from:subject:message-id; bh=x4deODr2J/B/ZfZk3+/1/BV8bYxvy5G2y6ggy6cAeUc=; b=owEBbQGS/pANAwAKAcLMIAH/AY/AAcsmYgBoXywbZ3akr4Chs8YgOyK+7h+O6cqelf/VMExPK 4GiksjiiRWJATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaF8sGwAKCRDCzCAB/wGP wHDwB/9daIu7wU8HmfXqqf/0QoDpVWOj5ADrc2WMoNjPFQEftaBGFOm1rdoqqyMt84oatVzP9KA 6ALLKPtnKhspuD5eQjHfWV//yErQA9TnClFJWADMyEogkYmtAuvPgfu3ecUSUmNSjDpazTAgOUG ckEBGtC3uLJMRkfD0n2yHBQsKkGsH0vp3hUELYKuFa9jaghzPjeSMMOt8LEopm6s88kr4mN1Xmn 7AYQZLcA22rDmwTc2D1ADD9bIaIXNDJ3dEDtFm26TYaEvZxrTbZIyZf19oaL8kjQ0ILRpvsZ7t/ hp2//OOeTLp9S/OPoBYpN33mGe0MUxCbMqx8M1ek69qsP3Pr X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 Enable SPI offload support for the AD7173 ADC driver. The scan_type used for SPI offload is assuming that we are using the ad411x_ad717x HDL project [1] which always stores data words in 32-bits. Link: https://analogdevicesinc.github.io/hdl/projects/ad411x_ad717x/index.h= tml [1] Signed-off-by: David Lechner --- drivers/iio/adc/ad7173.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c index 010339c2b7044da4b36dc894a38a145c2fcccd6a..580d4bf3366b193fa0f13d0a288= 86d390e1295b8 100644 --- a/drivers/iio/adc/ad7173.c +++ b/drivers/iio/adc/ad7173.c @@ -748,6 +748,7 @@ static const struct ad_sigma_delta_info ad7173_sigma_de= lta_info_4_slots =3D { .set_mode =3D ad7173_set_mode, .has_registers =3D true, .has_named_irqs =3D true, + .supports_spi_offload =3D true, .addr_shift =3D 0, .read_mask =3D BIT(6), .status_ch_mask =3D GENMASK(3, 0), @@ -764,6 +765,7 @@ static const struct ad_sigma_delta_info ad7173_sigma_de= lta_info_8_slots =3D { .set_mode =3D ad7173_set_mode, .has_registers =3D true, .has_named_irqs =3D true, + .supports_spi_offload =3D true, .addr_shift =3D 0, .read_mask =3D BIT(6), .status_ch_mask =3D GENMASK(3, 0), @@ -1585,6 +1587,11 @@ static int ad7173_fw_parse_channel_config(struct iio= _dev *indio_dev) if (st->info->data_reg_only_16bit) chan_arr[chan_index].scan_type =3D ad4113_scan_type; =20 + if (ad_sigma_delta_has_spi_offload(&st->sd)) { + chan_arr[chan_index].scan_type.storagebits =3D 32; + chan_arr[chan_index].scan_type.endianness =3D IIO_CPU; + } + chan_index++; } =20 @@ -1675,6 +1682,12 @@ static int ad7173_fw_parse_channel_config(struct iio= _dev *indio_dev) if (st->info->data_reg_only_16bit) chan_arr[chan_index].scan_type =3D ad4113_scan_type; =20 + /* Assuming SPI offload is ad411x_ad717x HDL project. */ + if (ad_sigma_delta_has_spi_offload(&st->sd)) { + chan_arr[chan_index].scan_type.storagebits =3D 32; + chan_arr[chan_index].scan_type.endianness =3D IIO_CPU; + } + chan_index++; } return 0; --=20 2.43.0