From: Julien Stephan <jstephan@baylibre.com>
To: "Lars-Peter Clausen" <lars@metafoo.de>,
"Michael Hennerich" <Michael.Hennerich@analog.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"David Lechner" <dlechner@baylibre.com>,
"Jonathan Cameron" <jic23@kernel.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Liam Girdwood" <lgirdwood@gmail.com>,
"Mark Brown" <broonie@kernel.org>
Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel test robot <lkp@intel.com>,
Julien Stephan <jstephan@baylibre.com>
Subject: [PATCH v5 7/7] iio: adc: ad7380: add support for ad738x-4 4 channels variants
Date: Tue, 19 Mar 2024 11:11:28 +0100 [thread overview]
Message-ID: <20240319-adding-new-ad738x-driver-v5-7-ce7df004ceb3@baylibre.com> (raw)
In-Reply-To: <20240319-adding-new-ad738x-driver-v5-0-ce7df004ceb3@baylibre.com>
Add support for ad7380/1/2/3-4 parts which are 4 channels
variants from ad7380/1/2/3
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
---
drivers/iio/adc/ad7380.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 74 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ad7380.c b/drivers/iio/adc/ad7380.c
index 3aca41ce9a14..cf9d2ace5f20 100644
--- a/drivers/iio/adc/ad7380.c
+++ b/drivers/iio/adc/ad7380.c
@@ -8,6 +8,9 @@
* Datasheets of supported parts:
* ad7380/1 : https://www.analog.com/media/en/technical-documentation/data-sheets/AD7380-7381.pdf
* ad7383/4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7383-7384.pdf
+ * ad7380-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7380-4.pdf
+ * ad7381-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7381-4.pdf
+ * ad7383/4-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7383-4-ad7384-4.pdf
*/
#include <linux/bitfield.h>
@@ -29,7 +32,7 @@
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
-#define MAX_NUM_CHANNELS 2
+#define MAX_NUM_CHANNELS 4
/* 2.5V internal reference voltage */
#define AD7380_INTERNAL_REF_MV 2500
@@ -106,27 +109,53 @@ static const struct iio_chan_spec name[] = { \
IIO_CHAN_SOFT_TIMESTAMP(2), \
}
+#define DEFINE_AD7380_4_CHANNEL(name, bits, diff) \
+static const struct iio_chan_spec name[] = { \
+ AD7380_CHANNEL(0, bits, diff), \
+ AD7380_CHANNEL(1, bits, diff), \
+ AD7380_CHANNEL(2, bits, diff), \
+ AD7380_CHANNEL(3, bits, diff), \
+ IIO_CHAN_SOFT_TIMESTAMP(4), \
+}
+
/* fully differential */
DEFINE_AD7380_2_CHANNEL(ad7380_channels, 16, 1);
DEFINE_AD7380_2_CHANNEL(ad7381_channels, 14, 1);
+DEFINE_AD7380_4_CHANNEL(ad7380_4_channels, 16, 1);
+DEFINE_AD7380_4_CHANNEL(ad7381_4_channels, 14, 1);
/* pseudo differential */
DEFINE_AD7380_2_CHANNEL(ad7383_channels, 16, 0);
DEFINE_AD7380_2_CHANNEL(ad7384_channels, 14, 0);
+DEFINE_AD7380_4_CHANNEL(ad7383_4_channels, 16, 0);
+DEFINE_AD7380_4_CHANNEL(ad7384_4_channels, 14, 0);
static const char * const ad7380_2_channel_vcm_supplies[] = {
"aina", "ainb",
};
+static const char * const ad7380_4_channel_vcm_supplies[] = {
+ "aina", "ainb", "ainc", "aind",
+};
+
/* Since this is simultaneous sampling, we don't allow individual channels. */
static const unsigned long ad7380_2_channel_scan_masks[] = {
GENMASK(1, 0),
0
};
+static const unsigned long ad7380_4_channel_scan_masks[] = {
+ GENMASK(3, 0),
+ 0
+};
+
static const struct ad7380_timing_specs ad7380_timing = {
.t_csh_ns = 10,
};
+static const struct ad7380_timing_specs ad7380_4_timing = {
+ .t_csh_ns = 20,
+};
+
static const struct ad7380_chip_info ad7380_chip_info = {
.name = "ad7380",
.channels = ad7380_channels,
@@ -163,6 +192,42 @@ static const struct ad7380_chip_info ad7384_chip_info = {
.timing_specs = &ad7380_timing,
};
+static const struct ad7380_chip_info ad7380_4_chip_info = {
+ .name = "ad7380-4",
+ .channels = ad7380_4_channels,
+ .num_channels = ARRAY_SIZE(ad7380_4_channels),
+ .available_scan_masks = ad7380_4_channel_scan_masks,
+ .timing_specs = &ad7380_4_timing,
+};
+
+static const struct ad7380_chip_info ad7381_4_chip_info = {
+ .name = "ad7381-4",
+ .channels = ad7381_4_channels,
+ .num_channels = ARRAY_SIZE(ad7381_4_channels),
+ .available_scan_masks = ad7380_4_channel_scan_masks,
+ .timing_specs = &ad7380_4_timing,
+};
+
+static const struct ad7380_chip_info ad7383_4_chip_info = {
+ .name = "ad7383-4",
+ .channels = ad7383_4_channels,
+ .num_channels = ARRAY_SIZE(ad7383_4_channels),
+ .vcm_supplies = ad7380_4_channel_vcm_supplies,
+ .num_vcm_supplies = ARRAY_SIZE(ad7380_4_channel_vcm_supplies),
+ .available_scan_masks = ad7380_4_channel_scan_masks,
+ .timing_specs = &ad7380_4_timing,
+};
+
+static const struct ad7380_chip_info ad7384_4_chip_info = {
+ .name = "ad7384-4",
+ .channels = ad7384_4_channels,
+ .num_channels = ARRAY_SIZE(ad7384_4_channels),
+ .vcm_supplies = ad7380_4_channel_vcm_supplies,
+ .num_vcm_supplies = ARRAY_SIZE(ad7380_4_channel_vcm_supplies),
+ .available_scan_masks = ad7380_4_channel_scan_masks,
+ .timing_specs = &ad7380_4_timing,
+};
+
struct ad7380_state {
const struct ad7380_chip_info *chip_info;
struct spi_device *spi;
@@ -514,6 +579,10 @@ static const struct of_device_id ad7380_of_match_table[] = {
{ .compatible = "adi,ad7381", .data = &ad7381_chip_info },
{ .compatible = "adi,ad7383", .data = &ad7383_chip_info },
{ .compatible = "adi,ad7384", .data = &ad7384_chip_info },
+ { .compatible = "adi,ad7380-4", .data = &ad7380_4_chip_info },
+ { .compatible = "adi,ad7381-4", .data = &ad7381_4_chip_info },
+ { .compatible = "adi,ad7383-4", .data = &ad7383_4_chip_info },
+ { .compatible = "adi,ad7384-4", .data = &ad7384_4_chip_info },
{ }
};
@@ -522,6 +591,10 @@ static const struct spi_device_id ad7380_id_table[] = {
{ "ad7381", (kernel_ulong_t)&ad7381_chip_info },
{ "ad7383", (kernel_ulong_t)&ad7383_chip_info },
{ "ad7384", (kernel_ulong_t)&ad7384_chip_info },
+ { "ad7380-4", (kernel_ulong_t)&ad7380_4_chip_info },
+ { "ad7381-4", (kernel_ulong_t)&ad7381_4_chip_info },
+ { "ad7383-4", (kernel_ulong_t)&ad7383_4_chip_info },
+ { "ad7384-4", (kernel_ulong_t)&ad7384_4_chip_info },
{ }
};
MODULE_DEVICE_TABLE(spi, ad7380_id_table);
--
2.44.0
next prev parent reply other threads:[~2024-03-19 10:11 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-19 10:11 [PATCH v5 0/7] iio: adc: add new ad7380 driver Julien Stephan
2024-03-19 10:11 ` [PATCH v5 1/7] dt-bindings: iio: adc: Add binding for AD7380 ADCs Julien Stephan
2024-03-19 10:11 ` [PATCH v5 2/7] iio: adc: ad7380: new driver " Julien Stephan
2024-03-24 12:42 ` Jonathan Cameron
2024-03-19 10:11 ` [PATCH v5 3/7] dt-bindings: iio: adc: ad7380: add pseudo-differential parts Julien Stephan
2024-03-19 17:10 ` Conor Dooley
2024-03-19 10:11 ` [PATCH v5 4/7] iio: adc: ad7380: add support for " Julien Stephan
2024-03-24 13:01 ` Jonathan Cameron
2024-03-25 14:08 ` David Lechner
2024-03-25 20:06 ` Jonathan Cameron
2024-03-25 20:14 ` David Lechner
2024-03-19 10:11 ` [PATCH v5 5/7] iio: adc: ad7380: prepare for parts with more channels Julien Stephan
2024-03-24 13:07 ` Jonathan Cameron
2024-03-19 10:11 ` [PATCH v5 6/7] dt-bindings: iio: adc: ad7380: add support for ad738x-4 4 channels variants Julien Stephan
2024-03-19 17:24 ` Conor Dooley
2024-03-19 10:11 ` Julien Stephan [this message]
2024-03-24 13:10 ` [PATCH v5 7/7] " Jonathan Cameron
2024-03-25 15:01 ` David Lechner
2024-03-25 19:04 ` Jonathan Cameron
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