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from nwd2mta1.analog.com (137.71.25.55) by CY1NAM02FT023.mail.protection.outlook.com (10.152.74.237) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.1471.13 via Frontend Transport; Wed, 9 Jan 2019 09:14:30 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta1.analog.com (8.13.8/8.13.8) with ESMTP id x099ETj4001228 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Wed, 9 Jan 2019 01:14:29 -0800 Received: from mircea-Latitude-E6540.analog.com (10.50.1.101) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Wed, 9 Jan 2019 04:14:29 -0500 From: Mircea Caprioru To: CC: , , , , , Mircea Caprioru Subject: [PATCH] iio: dac: ad5686: Add support for AD5674R/AD5679R Date: Wed, 9 Jan 2019 11:14:16 +0200 Message-ID: <20190109091416.12060-1-mircea.caprioru@analog.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 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Jan 2019 09:14:30.3786 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1939a768-33bb-4eff-230a-08d67612dcf2 X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a;Ip=[137.71.25.55];Helo=[nwd2mta1.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR03MB2477 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The AD5674R/AD5679R are low power, 16-channel, 12-/16-bit buffered voltage output digital-to-analog converters (DACs). They include a 2.5 V internal reference (enabled by default). These devices are very similar to AD5684R/AD5686R, except that they have 16 channels. Signed-off-by: Mircea Caprioru --- drivers/iio/dac/Kconfig | 6 +++--- drivers/iio/dac/ad5686-spi.c | 7 ++++-- drivers/iio/dac/ad5686.c | 42 ++++++++++++++++++++++++++++++++++-- drivers/iio/dac/ad5686.h | 2 ++ 4 files changed, 50 insertions(+), 7 deletions(-) diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig index 851b61eaf3da..f28daf67db6a 100644 --- a/drivers/iio/dac/Kconfig +++ b/drivers/iio/dac/Kconfig @@ -148,9 +148,9 @@ config AD5686_SPI depends on SPI select AD5686 help - Say yes here to build support for Analog Devices AD5672R, AD5676, - AD5676R, AD5684, AD5684R, AD5684R, AD5685R, AD5686, AD5686R. - Voltage Output Digital to Analog Converter. + Say yes here to build support for Analog Devices AD5672R, AD5674R, + AD5676, AD5676R, AD5679R, AD5684, AD5684R, AD5684R, AD5685R, AD5686, + AD5686R Voltage Output Digital to Analog Converter. To compile this driver as a module, choose M here: the module will be called ad5686. diff --git a/drivers/iio/dac/ad5686-spi.c b/drivers/iio/dac/ad5686-spi.c index 665fa6bd9ced..4d857c8da2d2 100644 --- a/drivers/iio/dac/ad5686-spi.c +++ b/drivers/iio/dac/ad5686-spi.c @@ -1,7 +1,8 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * AD5672R, AD5676, AD5676R, AD5681R, AD5682R, AD5683, AD5683R, - * AD5684, AD5684R, AD5685R, AD5686, AD5686R + * AD5672R, AD5674R, AD5676, AD5676R, AD5679R, + * AD5681R, AD5682R, AD5683, AD5683R, AD5684, + * AD5684R, AD5685R, AD5686, AD5686R * Digital to analog converters driver * * Copyright 2018 Analog Devices Inc. @@ -102,8 +103,10 @@ static int ad5686_spi_remove(struct spi_device *spi) static const struct spi_device_id ad5686_spi_id[] = { {"ad5310r", ID_AD5310R}, {"ad5672r", ID_AD5672R}, + {"ad5674r", ID_AD5674R}, {"ad5676", ID_AD5676}, {"ad5676r", ID_AD5676R}, + {"ad5679r", ID_AD5679R}, {"ad5681r", ID_AD5681R}, {"ad5682r", ID_AD5682R}, {"ad5683", ID_AD5683}, diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c index a332b93ca2c4..6dd2759b9092 100644 --- a/drivers/iio/dac/ad5686.c +++ b/drivers/iio/dac/ad5686.c @@ -71,7 +71,7 @@ static ssize_t ad5686_write_dac_powerdown(struct iio_dev *indio_dev, int ret; struct ad5686_state *st = iio_priv(indio_dev); unsigned int val, ref_bit_msk; - u8 shift; + u8 shift, address = 0; ret = strtobool(buf, &readin); if (ret) @@ -94,6 +94,9 @@ static ssize_t ad5686_write_dac_powerdown(struct iio_dev *indio_dev, case AD5686_REGMAP: shift = 0; ref_bit_msk = 0; + /* AD5674R/AD5679R have 16 channels and 2 powerdown registers */ + if (chan->channel > 0x7) + address = 0x8; break; case AD5693_REGMAP: shift = 13; @@ -107,7 +110,8 @@ static ssize_t ad5686_write_dac_powerdown(struct iio_dev *indio_dev, if (!st->use_internal_vref) val |= ref_bit_msk; - ret = st->write(st, AD5686_CMD_POWERDOWN_DAC, 0, val); + ret = st->write(st, AD5686_CMD_POWERDOWN_DAC, + address, val >> (address * 2)); return ret ? ret : len; } @@ -226,10 +230,32 @@ static struct iio_chan_spec name[] = { \ AD5868_CHANNEL(7, 7, bits, _shift), \ } +#define DECLARE_AD5679_CHANNELS(name, bits, _shift) \ +static struct iio_chan_spec name[] = { \ + AD5868_CHANNEL(0, 0, bits, _shift), \ + AD5868_CHANNEL(1, 1, bits, _shift), \ + AD5868_CHANNEL(2, 2, bits, _shift), \ + AD5868_CHANNEL(3, 3, bits, _shift), \ + AD5868_CHANNEL(4, 4, bits, _shift), \ + AD5868_CHANNEL(5, 5, bits, _shift), \ + AD5868_CHANNEL(6, 6, bits, _shift), \ + AD5868_CHANNEL(7, 7, bits, _shift), \ + AD5868_CHANNEL(8, 8, bits, _shift), \ + AD5868_CHANNEL(9, 9, bits, _shift), \ + AD5868_CHANNEL(10, 10, bits, _shift), \ + AD5868_CHANNEL(11, 11, bits, _shift), \ + AD5868_CHANNEL(12, 12, bits, _shift), \ + AD5868_CHANNEL(13, 13, bits, _shift), \ + AD5868_CHANNEL(14, 14, bits, _shift), \ + AD5868_CHANNEL(15, 15, bits, _shift), \ +} + DECLARE_AD5693_CHANNELS(ad5310r_channels, 10, 2); DECLARE_AD5693_CHANNELS(ad5311r_channels, 10, 6); DECLARE_AD5676_CHANNELS(ad5672_channels, 12, 4); +DECLARE_AD5679_CHANNELS(ad5674r_channels, 12, 4); DECLARE_AD5676_CHANNELS(ad5676_channels, 16, 0); +DECLARE_AD5679_CHANNELS(ad5679r_channels, 16, 0); DECLARE_AD5686_CHANNELS(ad5684_channels, 12, 4); DECLARE_AD5686_CHANNELS(ad5685r_channels, 14, 2); DECLARE_AD5686_CHANNELS(ad5686_channels, 16, 0); @@ -262,6 +288,12 @@ static const struct ad5686_chip_info ad5686_chip_info_tbl[] = { .num_channels = 8, .regmap_type = AD5686_REGMAP, }, + [ID_AD5674R] = { + .channels = ad5674r_channels, + .int_vref_mv = 2500, + .num_channels = 16, + .regmap_type = AD5686_REGMAP, + }, [ID_AD5675R] = { .channels = ad5676_channels, .int_vref_mv = 2500, @@ -279,6 +311,12 @@ static const struct ad5686_chip_info ad5686_chip_info_tbl[] = { .num_channels = 8, .regmap_type = AD5686_REGMAP, }, + [ID_AD5679R] = { + .channels = ad5679r_channels, + .int_vref_mv = 2500, + .num_channels = 16, + .regmap_type = AD5686_REGMAP, + }, [ID_AD5681R] = { .channels = ad5691r_channels, .int_vref_mv = 2500, diff --git a/drivers/iio/dac/ad5686.h b/drivers/iio/dac/ad5686.h index 19f6917d4738..4c3e171ce0cc 100644 --- a/drivers/iio/dac/ad5686.h +++ b/drivers/iio/dac/ad5686.h @@ -54,9 +54,11 @@ enum ad5686_supported_device_ids { ID_AD5311R, ID_AD5671R, ID_AD5672R, + ID_AD5674R, ID_AD5675R, ID_AD5676, ID_AD5676R, + ID_AD5679R, ID_AD5681R, ID_AD5682R, ID_AD5683,