[PATCH v3 0/2] iio: adc: ad4080: add support for AD4082, AD4085 and AD4088

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* [PATCH v3 0/2] iio: adc: ad4080: add support for AD4082, AD4085 and AD4088
@ 2026-02-16 15:11 Antoniu Miclaus
  2026-02-16 15:11 ` [PATCH v3 1/2] dt-bindings: iio: adc: adi,ad4080: " Antoniu Miclaus
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Antoniu Miclaus @ 2026-02-16 15:11 UTC (permalink / raw)
  To: Antoniu Miclaus, Lars-Peter Clausen, Michael Hennerich,
	Jonathan Cameron, David Lechner, Nuno Sá,
	Andy Shevchenko, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
	linux-iio, devicetree, linux-kernel

Add support for AD4082, AD4085 and AD4088 SAR ADCs to the existing
ad4080 driver:

- AD4082: 20-bit SAR ADC with LVDS CNV clock count max of 8
- AD4085: 16-bit SAR ADC with LVDS CNV clock count max of 8
- AD4088: 14-bit SAR ADC with LVDS CNV clock count max of 8

These devices share the same register map as AD4080 but differ in
resolution and LVDS CNV clock count maximum values.

Changes in v3:
  - Merged individual per-device dt-bindings patches into a single
    patch.
  - Merged individual per-device driver patches into a single patch.
  - Collected Acked-by tag.

Antoniu Miclaus (2):
  dt-bindings: iio: adc: adi,ad4080: add support for AD4082, AD4085 and
    AD4088
  iio: adc: ad4080: add support for AD4082, AD4085 and AD4088

 .../bindings/iio/adc/adi,ad4080.yaml          |  3 ++
 drivers/iio/adc/ad4080.c                      | 45 +++++++++++++++++++
 2 files changed, 48 insertions(+)

-- 
2.43.0


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH v3 1/2] dt-bindings: iio: adc: adi,ad4080: add support for AD4082, AD4085 and AD4088
  2026-02-16 15:11 [PATCH v3 0/2] iio: adc: ad4080: add support for AD4082, AD4085 and AD4088 Antoniu Miclaus
@ 2026-02-16 15:11 ` Antoniu Miclaus
  2026-02-16 15:11 ` [PATCH v3 2/2] iio: adc: ad4080: " Antoniu Miclaus
  2026-02-22 13:21 ` [PATCH v3 0/2] " Jonathan Cameron
  2 siblings, 0 replies; 4+ messages in thread
From: Antoniu Miclaus @ 2026-02-16 15:11 UTC (permalink / raw)
  To: Antoniu Miclaus, Lars-Peter Clausen, Michael Hennerich,
	Jonathan Cameron, David Lechner, Nuno Sá,
	Andy Shevchenko, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
	linux-iio, devicetree, linux-kernel
  Cc: Conor Dooley

Add device tree binding support for AD4082, AD4085 and AD4088 SAR ADCs.
Add adi,ad4082, adi,ad4085 and adi,ad4088 to the compatible enum.

A fallback compatible string is not appropriate for these devices as they
differ in LVDS CNV clock count maximum from their base variants:
  - AD4082 (20-bit) vs AD4080: lvds_cnv_clk_cnt_max 8 vs 7
  - AD4085 (16-bit) vs AD4084: lvds_cnv_clk_cnt_max 8 vs 2
  - AD4088 (14-bit) vs AD4087: lvds_cnv_clk_cnt_max 8 vs 1

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
---
Changes in v3:
  - Merged individual per-device dt-bindings patches into a single
    patch adding AD4082, AD4085 and AD4088.
  - Collected Acked-by tag.

 Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml
index ccd6a0ac1539..79df2696ef24 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad4080.yaml
@@ -27,10 +27,13 @@ properties:
     enum:
       - adi,ad4080
       - adi,ad4081
+      - adi,ad4082
       - adi,ad4083
       - adi,ad4084
+      - adi,ad4085
       - adi,ad4086
       - adi,ad4087
+      - adi,ad4088
 
   reg:
     maxItems: 1
-- 
2.43.0


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH v3 2/2] iio: adc: ad4080: add support for AD4082, AD4085 and AD4088
  2026-02-16 15:11 [PATCH v3 0/2] iio: adc: ad4080: add support for AD4082, AD4085 and AD4088 Antoniu Miclaus
  2026-02-16 15:11 ` [PATCH v3 1/2] dt-bindings: iio: adc: adi,ad4080: " Antoniu Miclaus
@ 2026-02-16 15:11 ` Antoniu Miclaus
  2026-02-22 13:21 ` [PATCH v3 0/2] " Jonathan Cameron
  2 siblings, 0 replies; 4+ messages in thread
From: Antoniu Miclaus @ 2026-02-16 15:11 UTC (permalink / raw)
  To: Antoniu Miclaus, Lars-Peter Clausen, Michael Hennerich,
	Jonathan Cameron, David Lechner, Nuno Sá,
	Andy Shevchenko, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
	linux-iio, devicetree, linux-kernel
  Cc: Andy Shevchenko

Add support for the AD4082, AD4085 and AD4088 SAR ADCs. These devices
share the same resolution as their base variants but differ in LVDS CNV
clock count maximum:
  - AD4082 (20-bit, like AD4080): lvds_cnv_clk_cnt_max 8 vs 7
  - AD4085 (16-bit, like AD4084): lvds_cnv_clk_cnt_max 8 vs 2
  - AD4088 (14-bit, like AD4087): lvds_cnv_clk_cnt_max 8 vs 1

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
---
Changes in v3:
  - Merged individual per-device driver patches into a single patch
    adding AD4082, AD4085 and AD4088.

 drivers/iio/adc/ad4080.c | 45 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/drivers/iio/adc/ad4080.c b/drivers/iio/adc/ad4080.c
index 7cf3b6ed7940..fc261d3d7687 100644
--- a/drivers/iio/adc/ad4080.c
+++ b/drivers/iio/adc/ad4080.c
@@ -127,10 +127,13 @@
 #define AD4080_SPI_READ						BIT(7)
 #define AD4080_CHIP_ID						0x0050
 #define AD4081_CHIP_ID						0x0051
+#define AD4082_CHIP_ID						0x0052
 #define AD4083_CHIP_ID						0x0053
 #define AD4084_CHIP_ID						0x0054
+#define AD4085_CHIP_ID						0x0055
 #define AD4086_CHIP_ID						0x0056
 #define AD4087_CHIP_ID						0x0057
+#define AD4088_CHIP_ID						0x0058
 
 #define AD4080_LVDS_CNV_CLK_CNT_MAX				7
 
@@ -442,14 +445,20 @@ static const struct iio_chan_spec ad4080_channel = AD4080_CHANNEL_DEFINE(20, 32)
 
 static const struct iio_chan_spec ad4081_channel = AD4080_CHANNEL_DEFINE(20, 32);
 
+static const struct iio_chan_spec ad4082_channel = AD4080_CHANNEL_DEFINE(20, 32);
+
 static const struct iio_chan_spec ad4083_channel = AD4080_CHANNEL_DEFINE(16, 16);
 
 static const struct iio_chan_spec ad4084_channel = AD4080_CHANNEL_DEFINE(16, 16);
 
+static const struct iio_chan_spec ad4085_channel = AD4080_CHANNEL_DEFINE(16, 16);
+
 static const struct iio_chan_spec ad4086_channel = AD4080_CHANNEL_DEFINE(14, 16);
 
 static const struct iio_chan_spec ad4087_channel = AD4080_CHANNEL_DEFINE(14, 16);
 
+static const struct iio_chan_spec ad4088_channel = AD4080_CHANNEL_DEFINE(14, 16);
+
 static const struct ad4080_chip_info ad4080_chip_info = {
 	.name = "ad4080",
 	.product_id = AD4080_CHIP_ID,
@@ -470,6 +479,16 @@ static const struct ad4080_chip_info ad4081_chip_info = {
 	.lvds_cnv_clk_cnt_max = 2,
 };
 
+static const struct ad4080_chip_info ad4082_chip_info = {
+	.name = "ad4082",
+	.product_id = AD4082_CHIP_ID,
+	.scale_table = ad4080_scale_table,
+	.num_scales = ARRAY_SIZE(ad4080_scale_table),
+	.num_channels = 1,
+	.channels = &ad4082_channel,
+	.lvds_cnv_clk_cnt_max = 8,
+};
+
 static const struct ad4080_chip_info ad4083_chip_info = {
 	.name = "ad4083",
 	.product_id = AD4083_CHIP_ID,
@@ -490,6 +509,16 @@ static const struct ad4080_chip_info ad4084_chip_info = {
 	.lvds_cnv_clk_cnt_max = 2,
 };
 
+static const struct ad4080_chip_info ad4085_chip_info = {
+	.name = "ad4085",
+	.product_id = AD4085_CHIP_ID,
+	.scale_table = ad4080_scale_table,
+	.num_scales = ARRAY_SIZE(ad4080_scale_table),
+	.num_channels = 1,
+	.channels = &ad4085_channel,
+	.lvds_cnv_clk_cnt_max = 8,
+};
+
 static const struct ad4080_chip_info ad4086_chip_info = {
 	.name = "ad4086",
 	.product_id = AD4086_CHIP_ID,
@@ -510,6 +539,16 @@ static const struct ad4080_chip_info ad4087_chip_info = {
 	.lvds_cnv_clk_cnt_max = 1,
 };
 
+static const struct ad4080_chip_info ad4088_chip_info = {
+	.name = "ad4088",
+	.product_id = AD4088_CHIP_ID,
+	.scale_table = ad4080_scale_table,
+	.num_scales = ARRAY_SIZE(ad4080_scale_table),
+	.num_channels = 1,
+	.channels = &ad4088_channel,
+	.lvds_cnv_clk_cnt_max = 8,
+};
+
 static int ad4080_setup(struct iio_dev *indio_dev)
 {
 	struct ad4080_state *st = iio_priv(indio_dev);
@@ -666,10 +705,13 @@ static int ad4080_probe(struct spi_device *spi)
 static const struct spi_device_id ad4080_id[] = {
 	{ "ad4080", (kernel_ulong_t)&ad4080_chip_info },
 	{ "ad4081", (kernel_ulong_t)&ad4081_chip_info },
+	{ "ad4082", (kernel_ulong_t)&ad4082_chip_info },
 	{ "ad4083", (kernel_ulong_t)&ad4083_chip_info },
 	{ "ad4084", (kernel_ulong_t)&ad4084_chip_info },
+	{ "ad4085", (kernel_ulong_t)&ad4085_chip_info },
 	{ "ad4086", (kernel_ulong_t)&ad4086_chip_info },
 	{ "ad4087", (kernel_ulong_t)&ad4087_chip_info },
+	{ "ad4088", (kernel_ulong_t)&ad4088_chip_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, ad4080_id);
@@ -677,10 +719,13 @@ MODULE_DEVICE_TABLE(spi, ad4080_id);
 static const struct of_device_id ad4080_of_match[] = {
 	{ .compatible = "adi,ad4080", &ad4080_chip_info },
 	{ .compatible = "adi,ad4081", &ad4081_chip_info },
+	{ .compatible = "adi,ad4082", &ad4082_chip_info },
 	{ .compatible = "adi,ad4083", &ad4083_chip_info },
 	{ .compatible = "adi,ad4084", &ad4084_chip_info },
+	{ .compatible = "adi,ad4085", &ad4085_chip_info },
 	{ .compatible = "adi,ad4086", &ad4086_chip_info },
 	{ .compatible = "adi,ad4087", &ad4087_chip_info },
+	{ .compatible = "adi,ad4088", &ad4088_chip_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ad4080_of_match);
-- 
2.43.0


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH v3 0/2] iio: adc: ad4080: add support for AD4082, AD4085 and AD4088
  2026-02-16 15:11 [PATCH v3 0/2] iio: adc: ad4080: add support for AD4082, AD4085 and AD4088 Antoniu Miclaus
  2026-02-16 15:11 ` [PATCH v3 1/2] dt-bindings: iio: adc: adi,ad4080: " Antoniu Miclaus
  2026-02-16 15:11 ` [PATCH v3 2/2] iio: adc: ad4080: " Antoniu Miclaus
@ 2026-02-22 13:21 ` Jonathan Cameron
  2 siblings, 0 replies; 4+ messages in thread
From: Jonathan Cameron @ 2026-02-22 13:21 UTC (permalink / raw)
  To: Antoniu Miclaus
  Cc: Lars-Peter Clausen, Michael Hennerich, David Lechner,
	Nuno Sá,
	Andy Shevchenko, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
	linux-iio, devicetree, linux-kernel

On Mon, 16 Feb 2026 17:11:09 +0200
Antoniu Miclaus <antoniu.miclaus@analog.com> wrote:

> Add support for AD4082, AD4085 and AD4088 SAR ADCs to the existing
> ad4080 driver:
> 
> - AD4082: 20-bit SAR ADC with LVDS CNV clock count max of 8
> - AD4085: 16-bit SAR ADC with LVDS CNV clock count max of 8
> - AD4088: 14-bit SAR ADC with LVDS CNV clock count max of 8
> 
> These devices share the same register map as AD4080 but differ in
> resolution and LVDS CNV clock count maximum values.
> 
> Changes in v3:
>   - Merged individual per-device dt-bindings patches into a single
>     patch.
>   - Merged individual per-device driver patches into a single patch.
>   - Collected Acked-by tag.
> 
> Antoniu Miclaus (2):
>   dt-bindings: iio: adc: adi,ad4080: add support for AD4082, AD4085 and
>     AD4088
>   iio: adc: ad4080: add support for AD4082, AD4085 and AD4088
> 
>  .../bindings/iio/adc/adi,ad4080.yaml          |  3 ++
>  drivers/iio/adc/ad4080.c                      | 45 +++++++++++++++++++
>  2 files changed, 48 insertions(+)
> 

Applied to the testing branch of iio.git. I'll be rebasing on rc1 in the next
few days then pushing out for linux-next to pick up

Thanks,

Jonathan

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2026-02-22 13:21 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2026-02-16 15:11 [PATCH v3 0/2] iio: adc: ad4080: add support for AD4082, AD4085 and AD4088 Antoniu Miclaus
2026-02-16 15:11 ` [PATCH v3 1/2] dt-bindings: iio: adc: adi,ad4080: " Antoniu Miclaus
2026-02-16 15:11 ` [PATCH v3 2/2] iio: adc: ad4080: " Antoniu Miclaus
2026-02-22 13:21 ` [PATCH v3 0/2] " Jonathan Cameron

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