From: Adam Michaelis <adam.michaelis@rockwellcollins.com>
To: linux-iio@vger.kernel.org
Cc: lars@metafoo.de, michael.hennerich@analog.com, jic23@kernel.org,
knaack.h@gmx.de, pmeerw@pmeerw.net, robh+dt@kernel.org,
mark.rutland@arm.com, charles-antoine.couret@essensium.com,
devicetree@vger.kernel.org, brandon.maier@rockwellcollins.com,
clayton.shotwell@rockwellcollins.com,
Adam Michaelis <adam.michaelis@rockwellcollins.com>
Subject: [PATCH 4/6] dt-bindings: iio: ad7949: Add cfg-readback option
Date: Wed, 1 May 2019 16:17:01 -0500 [thread overview]
Message-ID: <1556745423-11368-4-git-send-email-adam.michaelis@rockwellcollins.com> (raw)
In-Reply-To: <1556745423-11368-1-git-send-email-adam.michaelis@rockwellcollins.com>
Adding optional parameter to the ad7949 to indicate that the part should
be configured to include the configuration register value used when
acquiring the current sample value.
Signed-off-by: Adam Michaelis <adam.michaelis@rockwellcollins.com>
---
Documentation/devicetree/bindings/iio/adc/ad7949.txt | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/adc/ad7949.txt b/Documentation/devicetree/bindings/iio/adc/ad7949.txt
index 14ee9a2cb2a5..cd3572828243 100644
--- a/Documentation/devicetree/bindings/iio/adc/ad7949.txt
+++ b/Documentation/devicetree/bindings/iio/adc/ad7949.txt
@@ -18,6 +18,8 @@ Optional properties:
7: External reference, temperature sensor disabled, buffer enabled
- vref-supply: The regulator supply for ADC reference voltage. Required
if external reference selected by 'adi,reference-select'.
+ - adi,cfg-readback: If defined, set bit in configuration register to
+ read-back the configuration used for the current sample value.
Examples:
adc@0 {
@@ -32,3 +34,10 @@ adc@0 {
reg = <0>;
adi,reference-select = <0>;
};
+
+adc@0 {
+ compatible = "adi,ad7949";
+ reg = <0>;
+ adi,reference-select = <1>;
+ adi,cfg-readback;
+};
--
1.9.1
next prev parent reply other threads:[~2019-05-01 21:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-01 21:16 [PATCH 1/6] iio: ad7949: Support internal Vref Adam Michaelis
2019-05-01 21:16 ` [PATCH 2/6] dt-bindings: iio: ad7949: Add adi,reference-select Adam Michaelis
2019-05-05 12:22 ` Jonathan Cameron
2019-05-06 19:28 ` Adam Michaelis
2019-05-07 18:21 ` Adam Michaelis
2019-05-11 10:38 ` Jonathan Cameron
2019-05-13 14:51 ` [External] " Adam Michaelis
2019-05-01 21:17 ` [PATCH 3/6] iio: ad7949: Support configuration read-back Adam Michaelis
2019-05-01 21:17 ` Adam Michaelis [this message]
2019-05-01 21:17 ` [PATCH 5/6] iio: ad7949: Fix SPI interfacing for 14-bit messages Adam Michaelis
2019-05-01 21:17 ` [PATCH 6/6] iio: ad7949: Fix dummy read cycle placement Adam Michaelis
2019-05-02 6:30 ` [PATCH 1/6] iio: ad7949: Support internal Vref Couret Charles-Antoine
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