From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: To: jic23@cam.ac.uk CC: linux-iio@vger.kernel.org, drivers@analog.com, device-drivers-devel@blackfin.uclinux.org, Michael Hennerich Subject: [PATCH] staging: iio: dac: Add support for AD5541A, AD5512A digital to analog convertors Date: Fri, 19 Nov 2010 14:56:08 +0100 Message-ID: <1290174968-10461-1-git-send-email-michael.hennerich@analog.com> MIME-Version: 1.0 Content-Type: text/plain List-ID: From: Michael Hennerich Signed-off-by: Michael Hennerich --- drivers/staging/iio/dac/Kconfig | 6 +++--- drivers/staging/iio/dac/ad5446.c | 27 +++++++++++++++++++++++++-- drivers/staging/iio/dac/ad5446.h | 2 ++ 3 files changed, 30 insertions(+), 5 deletions(-) diff --git a/drivers/staging/iio/dac/Kconfig b/drivers/staging/iio/dac/Kconfig index 88914e9..9c497cc 100644 --- a/drivers/staging/iio/dac/Kconfig +++ b/drivers/staging/iio/dac/Kconfig @@ -11,11 +11,11 @@ config AD5624R_SPI AD5664R convertors (DAC). This driver uses the common SPI interface. config AD5446 - tristate "Analog Devices AD5444, AD5446 DAC SPI driver" + tristate "Analog Devices AD5444, AD5446 and AD5541A, AD5512A DAC SPI driver" depends on SPI help - Say yes here to build support for Analog Devices AD5444 and AD5446 - multiplying DACs. + Say yes here to build support for Analog Devices AD5444, AD5446 + and AD5541A, AD5512A DACs. To compile this driver as a module, choose M here: the module will be called ad5446. diff --git a/drivers/staging/iio/dac/ad5446.c b/drivers/staging/iio/dac/ad5446.c index c70243a..154a7c2 100644 --- a/drivers/staging/iio/dac/ad5446.c +++ b/drivers/staging/iio/dac/ad5446.c @@ -43,8 +43,17 @@ static ssize_t ad5446_write(struct device *dev, } mutex_lock(&dev_info->mlock); - st->data = cpu_to_be16(AD5446_LOAD | - (val << st->chip_info->res_shift)); + switch (spi_get_device_id(st->spi)->driver_data) { + case ID_AD5444: + case ID_AD5446: + st->data = cpu_to_be16(AD5446_LOAD | + (val << st->chip_info->res_shift)); + break; + case ID_AD5542A: + case ID_AD5512A: + st->data = cpu_to_be16(val << st->chip_info->res_shift); + break; + } ret = spi_sync(st->spi, &st->msg); mutex_unlock(&dev_info->mlock); @@ -103,6 +112,18 @@ static const struct ad5446_chip_info ad5446_chip_info_tbl[] = { .res_shift = 0, .sign = 'u', /* IIO_SCAN_EL_TYPE_UNSIGNED */ }, + [ID_AD5542A] = { + .bits = 16, + .storagebits = 16, + .res_shift = 0, + .sign = 'u', /* IIO_SCAN_EL_TYPE_UNSIGNED */ + }, + [ID_AD5512A] = { + .bits = 12, + .storagebits = 16, + .res_shift = 4, + .sign = 'u', /* IIO_SCAN_EL_TYPE_UNSIGNED */ + }, }; static int __devinit ad5446_probe(struct spi_device *spi) @@ -196,6 +217,8 @@ static int ad5446_remove(struct spi_device *spi) static const struct spi_device_id ad5446_id[] = { {"ad5444", ID_AD5444}, {"ad5446", ID_AD5446}, + {"ad5542a", ID_AD5542A}, + {"ad5512a", ID_AD5512A}, {} }; diff --git a/drivers/staging/iio/dac/ad5446.h b/drivers/staging/iio/dac/ad5446.h index 3456382..0a655f1 100644 --- a/drivers/staging/iio/dac/ad5446.h +++ b/drivers/staging/iio/dac/ad5446.h @@ -39,6 +39,8 @@ struct ad5446_state { enum ad5446_supported_device_ids { ID_AD5444, ID_AD5446, + ID_AD5542A, + ID_AD5512A, }; #endif /* IIO_ADC_AD5446_H_ */ -- 1.6.0.2