[v4,10/13] dt-bindings: iio: temperature: ltc2983: describe broken mux delay property
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From: Cosmin Tanislav <demonsingur@gmail.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>,
Michael Hennerich <Michael.Hennerich@analog.com>,
=?utf-8?q?Nuno_S=C3=A1?= <nuno.sa@analog.com>,
Jonathan Cameron <jic23@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, Cosmin Tanislav <cosmin.tanislav@analog.com>
Subject: [PATCH v4 10/13] dt-bindings: iio: temperature: ltc2983: describe
broken mux delay property
Date: Thu, 3 Nov 2022 15:00:38 +0200
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Commit Message
Cosmin Tanislav
Nov. 3, 2022, 1 p.m. UTC
From: Cosmin Tanislav <cosmin.tanislav@analog.com> The 'adi,mux-delay-config-us' property is broken. It was supposed to be in us, but the value is actually written directly to the register. Describe the fact that it is broken and how it actually works. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> --- .../devicetree/bindings/iio/temperature/adi,ltc2983.yaml | 3 +++ 1 file changed, 3 insertions(+)
Comments
On Thu, 03 Nov 2022 15:00:38 +0200, Cosmin Tanislav wrote: > From: Cosmin Tanislav <cosmin.tanislav@analog.com> > > The 'adi,mux-delay-config-us' property is broken. It was supposed to > be in us, but the value is actually written directly to the register. > Describe the fact that it is broken and how it actually works. > > Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> > --- > .../devicetree/bindings/iio/temperature/adi,ltc2983.yaml | 3 +++ > 1 file changed, 3 insertions(+) > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml index 676801b036cf..467e165e9b0b 100644 --- a/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml +++ b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml @@ -29,6 +29,9 @@ properties: Extra delay prior to each conversion, in addition to the internal 1ms delay, for the multiplexer to switch input configurations and excitation values. + + This property is supposed to be in microseconds, but to maintain + compatibility, this value will be multiplied by 100 before usage. maximum: 255 default: 0