linux-kernel - [PATCH AUTOSEL 4.19 137/177] iio: dac: ad5446: Add support for new AD5600 DAC

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Message-Id: <20191210213221.11921-137-sashal@kernel.org>
Date:   Tue, 10 Dec 2019 16:31:41 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Stefan Popa <stefan.popa@...log.com>,
        Alexandru Ardelean <alexandru.ardelean@...log.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Sasha Levin <sashal@...nel.org>, linux-iio@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 137/177] iio: dac: ad5446: Add support for new AD5600 DAC

From: Stefan Popa <stefan.popa@...log.com>

[ Upstream commit 6376cbe549fffb378403cee78efd26b8a2c8e450 ]

The AD5600 is a single channel, 16-bit resolution, voltage output digital
to analog converter (DAC). The AD5600 uses a 3-wire SPI interface. It is
part of the AD5541 family of DACs.

The ad5446 IIO driver implements support for some of these DACs (in the
AD5441 family), so the change is a simple entry in this driver.

Link: https://www.analog.com/media/en/technical-documentation/data-sheets/AD5600.pdf

Signed-off-by: Stefan Popa <stefan.popa@...log.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/iio/dac/Kconfig  | 4 ++--
 drivers/iio/dac/ad5446.c | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index 80beb64e9e0c6..69f4cfa6494b5 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -59,8 +59,8 @@ config AD5446
 	help
 	  Say yes here to build support for Analog Devices AD5300, AD5301, AD5310,
 	  AD5311, AD5320, AD5321, AD5444, AD5446, AD5450, AD5451, AD5452, AD5453,
-	  AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5601, AD5602, AD5611, AD5612,
-	  AD5620, AD5621, AD5622, AD5640, AD5641, AD5660, AD5662 DACs
+	  AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5600, AD5601, AD5602, AD5611,
+	  AD5612, AD5620, AD5621, AD5622, AD5640, AD5641, AD5660, AD5662 DACs
 	  as well as Texas Instruments DAC081S101, DAC101S101, DAC121S101.
 
 	  To compile this driver as a module, choose M here: the
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index fd26a4272fc5b..d3ce5def4f659 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -328,6 +328,7 @@ enum ad5446_supported_spi_device_ids {
 	ID_AD5541A,
 	ID_AD5512A,
 	ID_AD5553,
+	ID_AD5600,
 	ID_AD5601,
 	ID_AD5611,
 	ID_AD5621,
@@ -382,6 +383,10 @@ static const struct ad5446_chip_info ad5446_spi_chip_info[] = {
 		.channel = AD5446_CHANNEL(14, 16, 0),
 		.write = ad5446_write,
 	},
+	[ID_AD5600] = {
+		.channel = AD5446_CHANNEL(16, 16, 0),
+		.write = ad5446_write,
+	},
 	[ID_AD5601] = {
 		.channel = AD5446_CHANNEL_POWERDOWN(8, 16, 6),
 		.write = ad5446_write,
@@ -449,6 +454,7 @@ static const struct spi_device_id ad5446_spi_ids[] = {
 	{"ad5542a", ID_AD5541A}, /* ad5541a and ad5542a are compatible */
 	{"ad5543", ID_AD5541A}, /* ad5541a and ad5543 are compatible */
 	{"ad5553", ID_AD5553},
+	{"ad5600", ID_AD5600},
 	{"ad5601", ID_AD5601},
 	{"ad5611", ID_AD5611},
 	{"ad5621", ID_AD5621},
-- 
2.20.1