From patchwork Wed Jan 8 17:29:22 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Angelo Dureghello X-Patchwork-Id: 13931413 Received: from mail-wr1-f42.google.com (mail-wr1-f42.google.com [209.85.221.42]) (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 73CAF202F97 for ; Wed, 8 Jan 2025 17:30:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736357445; cv=none; b=HUhQgcNEn+DgDTwwFJ/iiR9blEDoAM0NRHEwW6LdJ9VbRMw/+Ty7nTBmZOg3j0XREMB8RELLuCyR5AiyQwopbSZATsxCwwxZccq6a0bbHdgajceXnFYSDopi4kAnAsN2qmv8yWru9uvhSKCcgZGmhLHxToANyvk44p5dI7x1zoo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736357445; c=relaxed/simple; bh=AhVYyfcJyUQuknu+k6SdzE03Oz9o2XZyVIS6TgjYN9k=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Lu4+Kp4Ht7tX6F0VZGMtAuJn/KO4gkWK57flMwqp29RVqpwCSTlpb1L/PjUoUBX7GwHt15C0UTkjdqIcZEb3sgWOiIHMWehfuM63wSmNyWNd6RPbfdHBi5hddM/SboU/sapkYZdNtGEmIb+AZQQeAR2cZu16Hj+UsesSaYIjOrQ= 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=yls+ca7I; arc=none smtp.client-ip=209.85.221.42 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="yls+ca7I" Received: by mail-wr1-f42.google.com with SMTP id ffacd0b85a97d-385ef8b64b3so42568f8f.0 for ; Wed, 08 Jan 2025 09:30:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1736357442; x=1736962242; 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=yW2QdAEBTAIXZ0FwhrlcyQ2UztjJ2op9sufvOiml2fo=; b=yls+ca7IH+kAgA1RZj9pj4FKS3rOktfhWqa+iCwQfZo3d7mOkYAOS8aDi397ceBCTS 4H/iwHpgcNo14MSE0djxbMWt01Gevd04Qg/owcM1t6BlQyPQi1lE7KhNw2jmN1V2oYuw CQqqs7upNth528bte3MbE8cP1wCM0AYIUOTu5bp+EZEW6nbMO2MRVbjmEVHiHSLKlZbr 6eBnd+Vy8yWNkeRObu5ekjUZKbF6y4ozxNe21ahTw+JsU0NxuYVQk1c3IYRwHMwKITCK th5nYMB8cSkSt09i6VircdoOPPgVZTNGWrYKx/RpWAOEfq1ObZkh/YGTKzrYX7bVjTBf gxag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736357442; x=1736962242; 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=yW2QdAEBTAIXZ0FwhrlcyQ2UztjJ2op9sufvOiml2fo=; b=hTGuJcpoF+VKb7ZXMiizVqgn6UeOjj+F/6ZKinRXxDn40AzsQFGx5Omnm7mG50tX6x YEgSJoKHsMLf8884V2UBRUxq12Z2c0uTM+/oGY2umjKIHGBfHzpL9Nmid7hNGCIV+KjH xvsq1heeDUXDYdxf8Ahbr3pX/HvrJ9mvA7MpsmamTuG5xi1CzEPLt/TZRTeYEYqqjA/w bZ50JNeqK8U1CB9Glio2JIclIln35m3oHZlv3G4p7lY2HtuoEnGxfKTq/l2eKl5B/f9+ WFR5asylK5RYJeDVotw6ltN0hOWqAZyPdxSObspuD4yhFvcvI4anm2P1TdBo8TZS6lMY VnIQ== X-Forwarded-Encrypted: i=1; AJvYcCX90cU4hvWRntLzvtelEl3Mwen5O7RuoWXm6hKM+MGDIWDO32MHHWW7jVwXKsTr9i8SBBr9gqYgC0g=@vger.kernel.org X-Gm-Message-State: AOJu0YwQDk1FW70FtF1DwDbNvmn9PdTU9noGt3QC58PQrXqrKpyUYhhj vnUzrw9hSyAjhbZkaUqgebt9IxOs1po7wDH1Eyj0iBt2JYD5PuQH+zQec5Um0/8= X-Gm-Gg: ASbGncvoUMcHap5Q3X6TKkAO+8T4lfwaKuxSanu8tB5rQCuPOWk/GerCx5CWwC326Br UbVxXbMQ+g0dRr0PxNZQ+/DAtq2sx3BAieYe32+Xwyw3suAH1jqa2faqNE6h9UMJqbvHP90j4AB XZRhUFMmPVIQB+CMLYXUWN4ckfisL+KWE2yEw1RT8apWohGLP/dMKBhdy3PmSQ7c5NXfr7y2f0g hyVek+kiTeYDHA09m0s1+flliDS8nLpJ2b3NMgDu6sNAyGGvDt5idaYqyw= X-Google-Smtp-Source: AGHT+IELdA96ehkDADF185V5g/Df7b6lGEqYEK4L8hpBP5+JsHgb8jVH/uZYHGv/eMK8ObED+oHDSw== X-Received: by 2002:a5d:64ce:0:b0:385:f6de:6266 with SMTP id ffacd0b85a97d-38a872eacdemr2600226f8f.24.1736357441570; Wed, 08 Jan 2025 09:30:41 -0800 (PST) Received: from [127.0.1.1] ([87.13.70.66]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38a1c8330d4sm52782599f8f.29.2025.01.08.09.30.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jan 2025 09:30:40 -0800 (PST) From: Angelo Dureghello X-Google-Original-From: Angelo Dureghello Date: Wed, 08 Jan 2025 18:29:22 +0100 Subject: [PATCH v2 8/9] iio: dac: ad3552r-hs: add ad3541/2r support Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250108-wip-bl-ad3552r-axi-v0-iio-testing-carlos-v2-8-2dac02f04638@baylibre.com> References: <20250108-wip-bl-ad3552r-axi-v0-iio-testing-carlos-v2-0-2dac02f04638@baylibre.com> In-Reply-To: <20250108-wip-bl-ad3552r-axi-v0-iio-testing-carlos-v2-0-2dac02f04638@baylibre.com> To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Mihail Chindris , Nuno Sa , David Lechner Cc: Jonathan Cameron , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Angelo Dureghello X-Mailer: b4 0.14.1 From: Angelo Dureghello A new fpga HDL has been developed from ADI to support ad354xr devices. Add support for ad3541r and ad3542r with following additions: - use common device_info structures for hs and non hs drivers, - DMA buffering, use DSPI mode for ad354xr and QSPI for ad355xr, - change samplerate to respect number of lanes. Signed-off-by: Angelo Dureghello --- drivers/iio/dac/ad3552r-common.c | 4 + drivers/iio/dac/ad3552r-hs.c | 240 ++++++++++++++++++++++++++++++++------- drivers/iio/dac/ad3552r.h | 3 + 3 files changed, 206 insertions(+), 41 deletions(-) diff --git a/drivers/iio/dac/ad3552r-common.c b/drivers/iio/dac/ad3552r-common.c index 36920ec95836..fa3050dc2efa 100644 --- a/drivers/iio/dac/ad3552r-common.c +++ b/drivers/iio/dac/ad3552r-common.c @@ -44,6 +44,7 @@ const struct ad3552r_model_data ad3541r_model_data = { .ranges_table = ad3542r_ch_ranges, .num_ranges = ARRAY_SIZE(ad3542r_ch_ranges), .requires_output_range = true, + .num_spi_data_lanes = 2, }; EXPORT_SYMBOL_NS_GPL(ad3541r_model_data, "IIO_AD3552R"); @@ -54,6 +55,7 @@ const struct ad3552r_model_data ad3542r_model_data = { .ranges_table = ad3542r_ch_ranges, .num_ranges = ARRAY_SIZE(ad3542r_ch_ranges), .requires_output_range = true, + .num_spi_data_lanes = 2, }; EXPORT_SYMBOL_NS_GPL(ad3542r_model_data, "IIO_AD3552R"); @@ -64,6 +66,7 @@ const struct ad3552r_model_data ad3551r_model_data = { .ranges_table = ad3552r_ch_ranges, .num_ranges = ARRAY_SIZE(ad3552r_ch_ranges), .requires_output_range = false, + .num_spi_data_lanes = 4, }; EXPORT_SYMBOL_NS_GPL(ad3551r_model_data, "IIO_AD3552R"); @@ -74,6 +77,7 @@ const struct ad3552r_model_data ad3552r_model_data = { .ranges_table = ad3552r_ch_ranges, .num_ranges = ARRAY_SIZE(ad3552r_ch_ranges), .requires_output_range = false, + .num_spi_data_lanes = 4, }; EXPORT_SYMBOL_NS_GPL(ad3552r_model_data, "IIO_AD3552R"); diff --git a/drivers/iio/dac/ad3552r-hs.c b/drivers/iio/dac/ad3552r-hs.c index bfb6228c9b9b..5995bab6a9b1 100644 --- a/drivers/iio/dac/ad3552r-hs.c +++ b/drivers/iio/dac/ad3552r-hs.c @@ -19,6 +19,31 @@ #include "ad3552r.h" #include "ad3552r-hs.h" +/* + * Important notes for register map access: + * ======================================== + * + * Register address space is divided in 2 regions, primary (config) and + * secondary (DAC). Primary region can only be accessed in simple SPI mode, + * with exception for ad355x models where setting QSPI pin high allows QSPI + * access to both the regions. + * + * Due to the fact that ad3541/2r do not implement QSPI, for proper device + * detection, HDL keeps "QSPI" pin level low at boot (see ad3552r manual, rev B + * table 7, pin 31, digital input). For this reason, actually the working mode + * between SPI, DSPI and QSPI must be set via software, configuring the target + * DAC appropriately, together with the backend api to configure the bus mode + * accordingly. + * + * Also, important to note that none of the three modes allow to read in DDR. + * + * In non-buffering operations, mode is set to simple SPI SDR for all primary + * and secondary region r/w accesses, to avoid to switch the mode each time DAC + * register is accessed (raw accesses, r/w), and to be able to dump registers + * content (possible as non DDR only). + * In buffering mode, driver sets best possible mode, D/QSPI and DDR. + */ + struct ad3552r_hs_state { const struct ad3552r_model_data *model_data; struct gpio_desc *reset_gpio; @@ -27,6 +52,8 @@ struct ad3552r_hs_state { bool single_channel; struct ad3552r_ch_data ch_data[AD3552R_MAX_CH]; struct ad3552r_hs_platform_data *data; + /* INTERFACE_CONFIG_D register cache, in DDR we cannot read values. */ + u32 config_d; }; static int ad3552r_qspi_update_reg_bits(struct ad3552r_hs_state *st, @@ -56,15 +83,19 @@ static int ad3552r_hs_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_SAMP_FREQ: /* - * Using 4 lanes (QSPI), then using 2 as DDR mode is - * considered always on (considering buffering mode always). + * Using a "num_spi_data_lanes" variable since ad3541/2 have + * only DSPI interface, while ad355x is QSPI. Then using 2 as + * DDR mode is considered always on (considering buffering + * mode always). */ *val = DIV_ROUND_CLOSEST(st->data->bus_sample_data_clock_hz * - 4 * 2, chan->scan_type.realbits); + st->model_data->num_spi_data_lanes * 2, + chan->scan_type.realbits); return IIO_VAL_INT; case IIO_CHAN_INFO_RAW: + /* For RAW accesses, stay always in simple-spi. */ ret = st->data->bus_reg_read(st->back, AD3552R_REG_ADDR_CH_DAC_16B(chan->channel), val, 2); @@ -93,6 +124,7 @@ static int ad3552r_hs_write_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: + /* For RAW accesses, stay always in simple-spi. */ iio_device_claim_direct_scoped(return -EBUSY, indio_dev) { return st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_CH_DAC_16B(chan->channel), @@ -104,6 +136,42 @@ static int ad3552r_hs_write_raw(struct iio_dev *indio_dev, } } +static int ad3552r_hs_set_bus_io_mode_hs(struct ad3552r_hs_state *st) +{ + int bus_mode; + + if (st->model_data->num_spi_data_lanes == 4) + bus_mode = AD3552R_IO_MODE_QSPI; + else + bus_mode = AD3552R_IO_MODE_DSPI; + + return st->data->bus_set_io_mode(st->back, bus_mode); +} + +static int ad3552r_hs_set_target_io_mode_hs(struct ad3552r_hs_state *st) +{ + int mode_target; + + /* + * Best access for secondary reg area, QSPI where possible, + * else as DSPI. + */ + if (st->model_data->num_spi_data_lanes == 4) + mode_target = AD3552R_QUAD_SPI; + else + mode_target = AD3552R_DUAL_SPI; + + /* + * Better to not use update here, since generally it is already + * set as DDR mode, and it's not possible to read in DDR mode. + */ + return st->data->bus_reg_write(st->back, + AD3552R_REG_ADDR_TRANSFER_REGISTER, + FIELD_PREP(AD3552R_MASK_MULTI_IO_MODE, + mode_target) | + AD3552R_MASK_STREAM_LENGTH_KEEP_VALUE, 1); +} + static int ad3552r_hs_buffer_postenable(struct iio_dev *indio_dev) { struct ad3552r_hs_state *st = iio_priv(indio_dev); @@ -132,6 +200,11 @@ static int ad3552r_hs_buffer_postenable(struct iio_dev *indio_dev) return -EINVAL; } + /* + * With ad3541/2r supoport, QSPI pin is held low at reset from HDL, + * streaming start sequence must respect strictly the order below. + */ + /* Primary region access, set streaming mode (now in SPI + SDR). */ ret = ad3552r_qspi_update_reg_bits(st, AD3552R_REG_ADDR_INTERFACE_CONFIG_B, @@ -139,48 +212,114 @@ static int ad3552r_hs_buffer_postenable(struct iio_dev *indio_dev) if (ret) return ret; - ret = st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_STREAM_MODE, + /* + * Set target loop len, 0x2c 0r 0x2a, descending loop, + * and keeping loop len value so it's not cleared hereafter when + * enabling streaming mode (cleared by CS_ up). + */ + ret = ad3552r_qspi_update_reg_bits(st, + AD3552R_REG_ADDR_TRANSFER_REGISTER, + AD3552R_MASK_STREAM_LENGTH_KEEP_VALUE, + AD3552R_MASK_STREAM_LENGTH_KEEP_VALUE, 1); + if (ret) + goto exit_err_streaming; + + ret = st->data->bus_reg_write(st->back, + AD3552R_REG_ADDR_STREAM_MODE, loop_len, 1); if (ret) - return ret; + goto exit_err_streaming; - /* Inform DAC chip to switch into DDR mode */ - ret = ad3552r_qspi_update_reg_bits(st, - AD3552R_REG_ADDR_INTERFACE_CONFIG_D, - AD3552R_MASK_SPI_CONFIG_DDR, - AD3552R_MASK_SPI_CONFIG_DDR, 1); + /* + * Registers dump for debug purposes is only possible until here, + * read in primary region must be SPI SDR (DDR read is never possible, + * D/QSPI SDR read in primary region is also not possible). + */ + + /* Setting DDR now, caching current config_d. */ + ret = st->data->bus_reg_read(st->back, + AD3552R_REG_ADDR_INTERFACE_CONFIG_D, + &st->config_d, 1); if (ret) - return ret; + goto exit_err_streaming; + + st->config_d |= AD3552R_MASK_SPI_CONFIG_DDR; + ret = st->data->bus_reg_write(st->back, + AD3552R_REG_ADDR_INTERFACE_CONFIG_D, + st->config_d, 1); + + if (ret) + goto exit_err_streaming; - /* Inform DAC IP to go for DDR mode from now on */ ret = iio_backend_ddr_enable(st->back); - if (ret) { - dev_err(st->dev, "could not set DDR mode, not streaming"); - goto exit_err; - } + if (ret) + goto exit_err_ddr_mode_target; + /* + * From here onward mode is DDR, so reading any register is not + * possible anymore, including calling "ad3552r_qspi_update_reg_bits" + * function. + */ + + /* Set target to best high speed mode (D or QSPI). */ + ret = ad3552r_hs_set_target_io_mode_hs(st); + if (ret) + goto exit_err_ddr_mode; + + /* Set bus to best high speed mode (D or QSPI). */ + ret = ad3552r_hs_set_bus_io_mode_hs(st); + if (ret) + goto exit_err_bus_mode_target; + + /* + * Backend setup must be done now only, or related register values + * will be disrupted by previous bus accesses. + */ ret = iio_backend_data_transfer_addr(st->back, val); if (ret) - goto exit_err; + goto exit_err_bus_mode_target; ret = iio_backend_data_format_set(st->back, 0, &fmt); if (ret) - goto exit_err; + goto exit_err_bus_mode_target; ret = iio_backend_data_stream_enable(st->back); if (ret) - goto exit_err; + goto exit_err_bus_mode_target; return 0; -exit_err: - ad3552r_qspi_update_reg_bits(st, - AD3552R_REG_ADDR_INTERFACE_CONFIG_D, - AD3552R_MASK_SPI_CONFIG_DDR, - 0, 1); +exit_err_bus_mode_target: + /* Back to simple SPI, not using update to avoid read. */ + st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_TRANSFER_REGISTER, + FIELD_PREP(AD3552R_MASK_MULTI_IO_MODE, + AD3552R_SPI) | + AD3552R_MASK_STREAM_LENGTH_KEEP_VALUE, 1); + /* + * Back bus to simple SPI, this must be executed together with above + * target mode unwind, and can be done only after it. + */ + st->data->bus_set_io_mode(st->back, AD3552R_IO_MODE_SPI); + +exit_err_ddr_mode: iio_backend_ddr_disable(st->back); +exit_err_ddr_mode_target: + /* + * Back to SDR. + * In DDR we cannot read, whatever the mode is, so not using update. + */ + st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_INTERFACE_CONFIG_D, + FIELD_PREP(AD3552R_MASK_SDO_DRIVE_STRENGTH, 1), + 1); + +exit_err_streaming: + /* Back to single instruction mode, disabling loop. */ + st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_INTERFACE_CONFIG_B, + AD3552R_MASK_SINGLE_INST | + AD3552R_MASK_SHORT_INSTRUCTION, 1); + return ret; } @@ -193,11 +332,22 @@ static int ad3552r_hs_buffer_predisable(struct iio_dev *indio_dev) if (ret) return ret; - /* Inform DAC to set in SDR mode */ - ret = ad3552r_qspi_update_reg_bits(st, - AD3552R_REG_ADDR_INTERFACE_CONFIG_D, - AD3552R_MASK_SPI_CONFIG_DDR, - 0, 1); + /* + * Set us to simple SPI, even if still in ddr, so to be able + * to write in primary region. + */ + ret = st->data->bus_set_io_mode(st->back, AD3552R_IO_MODE_SPI); + if (ret) + return ret; + + /* + * Back to SDR + * (in DDR we cannot read, whatever the mode is, so not using update). + */ + st->config_d &= ~AD3552R_MASK_SPI_CONFIG_DDR; + ret = st->data->bus_reg_write(st->back, + AD3552R_REG_ADDR_INTERFACE_CONFIG_D, + st->config_d, 1); if (ret) return ret; @@ -205,11 +355,21 @@ static int ad3552r_hs_buffer_predisable(struct iio_dev *indio_dev) if (ret) return ret; - /* Back to single instruction mode, disabling loop. */ + /* + * Back to simple SPI for secondary region too now, + * so to be able to dump/read registers there too if needed. + */ ret = ad3552r_qspi_update_reg_bits(st, - AD3552R_REG_ADDR_INTERFACE_CONFIG_B, - AD3552R_MASK_SINGLE_INST, - AD3552R_MASK_SINGLE_INST, 1); + AD3552R_REG_ADDR_TRANSFER_REGISTER, + AD3552R_MASK_MULTI_IO_MODE, + AD3552R_SPI, 1); + if (ret) + return ret; + + /* Back to single instruction mode, disabling loop. */ + ret = ad3552r_update_reg_bits(st, AD3552R_REG_ADDR_INTERFACE_CONFIG_B, + AD3552R_MASK_SINGLE_INST, + AD3552R_MASK_SINGLE_INST, 1); if (ret) return ret; @@ -319,6 +479,7 @@ static int ad3552r_hs_setup(struct ad3552r_hs_state *st) if (ret) return ret; + /* HDL starts with DDR enabled, disabling it. */ ret = iio_backend_ddr_disable(st->back); if (ret) return ret; @@ -352,6 +513,8 @@ static int ad3552r_hs_setup(struct ad3552r_hs_state *st) "Chip ID mismatch, detected 0x%x but expected 0x%x\n", id, st->model_data->chip_id); + dev_info(st->dev, "chip id %s detected", st->model_data->model_name); + /* Clear reset error flag, see ad3552r manual, rev B table 38. */ ret = st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_ERR_STATUS, AD3552R_MASK_RESET_STATUS, 1); @@ -364,14 +527,6 @@ static int ad3552r_hs_setup(struct ad3552r_hs_state *st) if (ret) return ret; - ret = st->data->bus_reg_write(st->back, - AD3552R_REG_ADDR_TRANSFER_REGISTER, - FIELD_PREP(AD3552R_MASK_MULTI_IO_MODE, - AD3552R_QUAD_SPI) | - AD3552R_MASK_STREAM_LENGTH_KEEP_VALUE, 1); - if (ret) - return ret; - ret = iio_backend_data_source_set(st->back, 0, IIO_BACKEND_EXTERNAL); if (ret) return ret; @@ -528,6 +683,9 @@ static int ad3552r_hs_probe(struct platform_device *pdev) } static const struct of_device_id ad3552r_hs_of_id[] = { + { .compatible = "adi,ad3541r", .data = &ad3541r_model_data }, + { .compatible = "adi,ad3542r", .data = &ad3542r_model_data }, + { .compatible = "adi,ad3551r", .data = &ad3551r_model_data }, { .compatible = "adi,ad3552r", .data = &ad3552r_model_data }, { } }; diff --git a/drivers/iio/dac/ad3552r.h b/drivers/iio/dac/ad3552r.h index 23f038464a0c..9d450019ece9 100644 --- a/drivers/iio/dac/ad3552r.h +++ b/drivers/iio/dac/ad3552r.h @@ -132,6 +132,8 @@ #define AD3552R_MAX_RANGES 5 #define AD3542R_MAX_RANGES 5 +#define AD3552R_SPI 0 +#define AD3552R_DUAL_SPI 1 #define AD3552R_QUAD_SPI 2 extern const s32 ad3552r_ch_ranges[AD3552R_MAX_RANGES][2]; @@ -156,6 +158,7 @@ struct ad3552r_model_data { const s32 (*ranges_table)[2]; int num_ranges; bool requires_output_range; + int num_spi_data_lanes; }; struct ad3552r_ch_data {