linux-kernel - [PATCH V2] iio: adc: ad7476: Add LTC2314-14 support

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Date:   Wed, 16 Dec 2020 10:23:04 +0200
From:   Mircea Caprioru <mircea.caprioru@...log.com>
To:     <jic23@...nel.org>
CC:     <Michael.Hennerich@...log.com>, <alexandru.ardelean@...log.com>,
        <lars@...afoo.de>, <gregkh@...uxfoundation.org>,
        <linux-kernel@...r.kernel.org>, <linux-iio@...r.kernel.org>,
        Dragos Bogdan <dragos.bogdan@...log.com>,
        Mircea Caprioru <mircea.caprioru@...log.com>
Subject: [PATCH V2] iio: adc: ad7476: Add LTC2314-14 support

From: Dragos Bogdan <dragos.bogdan@...log.com>

The LTC2314-14 is a 14-bit, 4.5Msps, serial sampling A/D converter that draws only
6.2mA from a wide range analog supply adjustable from 2.7V to 5.25V.

Signed-off-by: Dragos Bogdan <dragos.bogdan@...log.com>
Signed-off-by: Mircea Caprioru <mircea.caprioru@...log.com>
---
Changelog v2
- fix conflict with ADS7868 device in chip_info_tbl

 drivers/iio/adc/ad7476.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index 66c55ae67791..6bb4711b0f61 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -67,6 +67,7 @@ enum ad7476_supported_device_ids {
 	ID_ADS7866,
 	ID_ADS7867,
 	ID_ADS7868,
+	ID_LTC2314_14,
 };
 
 static void ad7091_convst(struct ad7476_state *st)
@@ -249,6 +250,9 @@ static const struct ad7476_chip_info ad7476_chip_info_tbl[] = {
 	[ID_ADS7868] = {
 		.channel[0] = ADS786X_CHAN(8),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
+	[ID_LTC2314_14] = {
+		.channel[0] = AD7940_CHAN(14),
+		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 };
 
@@ -365,6 +369,7 @@ static const struct spi_device_id ad7476_id[] = {
 	{"ads7866", ID_ADS7866},
 	{"ads7867", ID_ADS7867},
 	{"ads7868", ID_ADS7868},
+	{"ltc2314-14", ID_LTC2314_14},
 	{}
 };
 MODULE_DEVICE_TABLE(spi, ad7476_id);
-- 
2.17.1