linux-kernel - [PATCH] iio: dac: ad5686: Add support for AD5673R/AD5677R

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Message-ID: <20210216092855.11619-1-alexandru.ardelean@analog.com>
Date:   Tue, 16 Feb 2021 11:28:55 +0200
From:   Alexandru Ardelean <alexandru.ardelean@...log.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <jic23@...nel.org>, <mircea.caprioru@...log.com>,
        Alexandru Ardelean <alexandru.ardelean@...log.com>
Subject: [PATCH] iio: dac: ad5686: Add support for AD5673R/AD5677R

From: Mircea Caprioru <mircea.caprioru@...log.com>

The AD5673R/AD5677R 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 AD5674R/AD5679R, except that they
have an i2c interface.

Signed-off-by: Mircea Caprioru <mircea.caprioru@...log.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>
---
 drivers/iio/dac/Kconfig      |  5 +++--
 drivers/iio/dac/ad5686.c     | 12 ++++++++++++
 drivers/iio/dac/ad5686.h     |  2 ++
 drivers/iio/dac/ad5696-i2c.c |  6 ++++--
 4 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index cea07b4cced1..75e1f2b48638 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -142,8 +142,9 @@ config AD5696_I2C
 	select AD5686
 	help
 	  Say yes here to build support for Analog Devices AD5311R, AD5338R,
-	  AD5671R, AD5675R, AD5691R, AD5692R, AD5693, AD5693R, AD5694, AD5694R,
-	  AD5695R, AD5696, and AD5696R Digital to Analog converters.
+	  AD5671R, AD5673R, AD5675R, AD5677R, AD5691R, AD5692R, AD5693, AD5693R,
+	  AD5694, AD5694R, AD5695R, AD5696, and AD5696R Digital to Analog
+	  converters.
 
 	  To compile this driver as a module, choose M here: the module will be
 	  called ad5696.
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index 7d6792ac1020..99a95282ac57 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -301,6 +301,12 @@ static const struct ad5686_chip_info ad5686_chip_info_tbl[] = {
 		.num_channels = 8,
 		.regmap_type = AD5686_REGMAP,
 	},
+	[ID_AD5673R] = {
+		.channels = ad5674r_channels,
+		.int_vref_mv = 2500,
+		.num_channels = 16,
+		.regmap_type = AD5686_REGMAP,
+	},
 	[ID_AD5674R] = {
 		.channels = ad5674r_channels,
 		.int_vref_mv = 2500,
@@ -324,6 +330,12 @@ static const struct ad5686_chip_info ad5686_chip_info_tbl[] = {
 		.num_channels = 8,
 		.regmap_type = AD5686_REGMAP,
 	},
+	[ID_AD5677R] = {
+		.channels = ad5679r_channels,
+		.int_vref_mv = 2500,
+		.num_channels = 16,
+		.regmap_type = AD5686_REGMAP,
+	},
 	[ID_AD5679R] = {
 		.channels = ad5679r_channels,
 		.int_vref_mv = 2500,
diff --git a/drivers/iio/dac/ad5686.h b/drivers/iio/dac/ad5686.h
index d9c8ba413fe9..f89a6f92b427 100644
--- a/drivers/iio/dac/ad5686.h
+++ b/drivers/iio/dac/ad5686.h
@@ -55,10 +55,12 @@ enum ad5686_supported_device_ids {
 	ID_AD5338R,
 	ID_AD5671R,
 	ID_AD5672R,
+	ID_AD5673R,
 	ID_AD5674R,
 	ID_AD5675R,
 	ID_AD5676,
 	ID_AD5676R,
+	ID_AD5677R,
 	ID_AD5679R,
 	ID_AD5681R,
 	ID_AD5682R,
diff --git a/drivers/iio/dac/ad5696-i2c.c b/drivers/iio/dac/ad5696-i2c.c
index a39eda7c02d2..24a6a4a5a2e0 100644
--- a/drivers/iio/dac/ad5696-i2c.c
+++ b/drivers/iio/dac/ad5696-i2c.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * AD5671R, AD5675R, AD5691R, AD5692R, AD5693, AD5693R,
- * AD5694, AD5694R, AD5695R, AD5696, AD5696R
+ * AD5338R, AD5671R, AD5673R, AD5675R, AD5677R, AD5691R, AD5692R, AD5693,
+ * AD5693R, AD5694, AD5694R, AD5695R, AD5696, AD5696R
  * Digital to analog converters driver
  *
  * Copyright 2018 Analog Devices Inc.
@@ -74,7 +74,9 @@ static const struct i2c_device_id ad5686_i2c_id[] = {
 	{"ad5311r", ID_AD5311R},
 	{"ad5338r", ID_AD5338R},
 	{"ad5671r", ID_AD5671R},
+	{"ad5673r", ID_AD5673R},
 	{"ad5675r", ID_AD5675R},
+	{"ad5677r", ID_AD5677R},
 	{"ad5691r", ID_AD5691R},
 	{"ad5692r", ID_AD5692R},
 	{"ad5693", ID_AD5693},
-- 
2.17.1