From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f46.google.com (mail-ot1-f46.google.com [209.85.210.46]) (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 0B9052620E9 for ; Fri, 20 Jun 2025 22:21:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750458102; cv=none; b=gJt80iH06WPjEce/pEZZFJ4ejHKtoNI3F2x98v63fjXkWiJcmqtRO9dvmEiWhMPtVDV0E9wYptHR3sPE1p7294/NW+lnVkwCvff8mFBx0w4R+iXUPnvMjCC/RMjTQ34IG6KUnyXEn7YGXdeOBFGJc2IMR1vP2iUA8QaU/GoBzcE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750458102; 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=dHJfI+aRZyFucObJcAmIJyMxSbBhRcwaiVcV6ed9z9wQwW2ubeclmgZT5ao4my3b4KFzPPR1LYXV07WGtBVIRMUpsAosXTD/cTVLs6JXEOScgu2ldt0oLr4YAh90gCkQwPdsrHKfGu/IoqJXMLQnFAPBYbXHh1K9NKmAaeuzlj0= 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=wBXFihOF; arc=none smtp.client-ip=209.85.210.46 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="wBXFihOF" Received: by mail-ot1-f46.google.com with SMTP id 46e09a7af769-72c09f8369cso645417a34.3 for ; Fri, 20 Jun 2025 15:21:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1750458099; x=1751062899; 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=wBXFihOFLTvQbqVvK/Mu067ef9/6E2ZX887LJFi74M12RFxgU5ZYf71gHFk23oR/F5 maAQPC6xg4P+hloJfIaL1S55ZBt684Uhs2dmFhxfpDfH3JYZHHR14U962m0qNVXpjh9z ZNKKbazxwBlFhLntOzByyrBv8hltAOEF6nYc6HcfoRqMKDEMeN12oRFuBQBYhGm7VNaz v9RnpVjEYH2cCPEYTuJjwupP+8gF1OaqoPHEcTw9BQdWeodO3tpCeDdW1+giQYPcGYwz W3l6Sru/woLlVgSxY9dfPtVTExJAmb9K0mw9XD2aCElZ1lulin3waH3yS3ouQ8ll/GQM C3Lg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750458099; x=1751062899; 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=IChAt2zEN5x7cGSyZRgF06lKvYyOnnrcjgXEErmA0o5ELHyWZgHmlfGtqqLjx4jPeW QDnqfphM229dPclqrj8KCg+MLpzY4GaAPmC78SS3t5gfA6FvP2R/CR6Qxqxl4AyAkKMf sUh43aOAhf8Ycj4EQGDx1K/5tQ8yFfCJg0L6Khxlw8e2rha0SE0msU//7b8g6MrIoeaD C68TYaJ43ENC7iGNSKUr1p8zadooqFzf0r0GRK68uR54LFRTWb6BkwjYhH5ar9FbTyya 0X6VZoD5UQ1TABAS9mB0F3WuOeOYjWR8rtW5cDsDEIOOyBJNGQwROuV+CXDxmpTB5fN5 TvNg== X-Gm-Message-State: AOJu0Yx44RMbS6fIpRzCJzLw3nY/CRQD6fXk/m7NshJlakGG9hkJDtqC U4TT2T3xkgoMwaxE+utyd9JE3HKk9LArL5ORnI/5P1F0GX9qIWgiwtGl59a5I8gJgfE= X-Gm-Gg: ASbGnculb2UA4qMc9Kn1fBJnP/QoFZLuyukLOrg1frp+5XfjrxHyqBhrSAcOO+onJC8 iJyNxNDyeU5JIraMQ7ccU231Zv+WEUF5v2XCV1dHTkm5Aq95ERtS0qX01ovbCTihtoclHGh2CLq CdBMFZIu2WObnRznsbrN5zEB9rMna0DAL33GzkgNekRVhhOTRsrrNRtSyyS8EMK/cJn9R1fAuXs FbuQvDq7w9cK4PeEfwRUYMtSj4KrSQs1koHgo6TMyM8af5wWngvD38NKlf30gVXdviHM/F6xP0/ hwHH/abEibWjsAC0WQII1lTXsCrjQYdFP1lkr905wCJFCMumCJDkB9ytI4ivFw+u35PB X-Google-Smtp-Source: AGHT+IFFZ+omLsO7ZuSN1mPRtGWTSm0ZzIFm+TkweJtrK0ojyctWLeY95qYERn4eblsassMxLl2d4g== X-Received: by 2002:a05:6871:d082:b0:2d4:e420:926c with SMTP id 586e51a60fabf-2eed96fd963mr3180391fac.0.1750458098820; Fri, 20 Jun 2025 15:21:38 -0700 (PDT) Received: from [127.0.1.1] ([2600:8803:e7e4:1d00:c4bf:cf27:203c:f8b0]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-2ef481fe06esm7561fac.35.2025.06.20.15.21.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Jun 2025 15:21:38 -0700 (PDT) From: David Lechner Date: Fri, 20 Jun 2025 17:20:15 -0500 Subject: [PATCH 9/9] iio: adc: ad7173: add SPI offload support 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="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250620-iio-adc-ad7173-add-spi-offload-support-v1-9-0766f6297430@baylibre.com> References: <20250620-iio-adc-ad7173-add-spi-offload-support-v1-0-0766f6297430@baylibre.com> In-Reply-To: <20250620-iio-adc-ad7173-add-spi-offload-support-v1-0-0766f6297430@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/AAcsmYgBoVd7X1mOWlAqdTIO8E8YQGWhnDdCYn3sWy4agB JECUdf0nY+JATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaFXe1wAKCRDCzCAB/wGP wIXeB/0cCZLaVXucuun4F3NuAOcZU4Z6XVqoy07XZgydMW8uAoRFh9Smjm8a2yuZ89fNsezuGDs p2VD/kJxzwjq29+7Dh7rAMJK9R6QQHvl/JS5jC09PQz8G2xWut4W7gDLfVVYEui6pNRrzB4pDON BO151qy8G+Nu2VrofSepYqirPoFAJDaC1akxcLPrBjuPxTlrbBVYIyBg07xyPyJaeXD1JhoBoB1 OvTWmEVak1PusFL/ETcJsuqtt4F4v4Fax0ueYutobWoern8Q9aHu7Uvon0JR5Nk9omjsAH3gfZT HefEfAdSDzo9otlQIPhuHy/Dw8qW2N0sioE4LURsFoIVL0g+ 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.html [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..580d4bf3366b193fa0f13d0a28886d390e1295b8 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_delta_info_4_slots = { .set_mode = ad7173_set_mode, .has_registers = true, .has_named_irqs = true, + .supports_spi_offload = true, .addr_shift = 0, .read_mask = BIT(6), .status_ch_mask = GENMASK(3, 0), @@ -764,6 +765,7 @@ static const struct ad_sigma_delta_info ad7173_sigma_delta_info_8_slots = { .set_mode = ad7173_set_mode, .has_registers = true, .has_named_irqs = true, + .supports_spi_offload = true, .addr_shift = 0, .read_mask = BIT(6), .status_ch_mask = 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 = ad4113_scan_type; + if (ad_sigma_delta_has_spi_offload(&st->sd)) { + chan_arr[chan_index].scan_type.storagebits = 32; + chan_arr[chan_index].scan_type.endianness = IIO_CPU; + } + chan_index++; } @@ -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 = ad4113_scan_type; + /* Assuming SPI offload is ad411x_ad717x HDL project. */ + if (ad_sigma_delta_has_spi_offload(&st->sd)) { + chan_arr[chan_index].scan_type.storagebits = 32; + chan_arr[chan_index].scan_type.endianness = IIO_CPU; + } + chan_index++; } return 0; -- 2.43.0