From: Fabrice Gasnier <fabrice.gasnier@st.com>
To: <jic23@kernel.org>, <linux@armlinux.org.uk>, <robh+dt@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <linux-iio@vger.kernel.org>, <mark.rutland@arm.com>,
<mcoquelin.stm32@gmail.com>, <alexandre.torgue@st.com>,
<lars@metafoo.de>, <knaack.h@gmx.de>, <pmeerw@pmeerw.net>,
<fabrice.gasnier@st.com>
Subject: [PATCH 1/2] dt-bindings: iio: stm32-adc: add option to set resolution
Date: Wed, 15 Feb 2017 17:55:56 +0100 [thread overview]
Message-ID: <1487177757-19427-2-git-send-email-fabrice.gasnier@st.com> (raw)
In-Reply-To: <1487177757-19427-1-git-send-email-fabrice.gasnier@st.com>
Add documentation for 'st,adc-res' dt optional property.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
index 5dfc88e..45f7ff2 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
@@ -57,6 +57,9 @@ Optional properties:
- dmas: Phandle to dma channel for this ADC instance.
See ../../dma/dma.txt for details.
- dma-names: Must be "rx" when dmas property is being used.
+- st,adc-res: Resolution (bits) to use for conversions. Must match device
+ available resolutions (e.g. can be 6, 8, 10 or 12 on stm32f4). Default
+ is maximum resolution if unset.
Example:
adc: adc@40012000 {
@@ -84,6 +87,7 @@ Example:
st,adc-channels = <8>;
dmas = <&dma2 0 0 0x400 0x0>;
dma-names = "rx";
+ st,adc-res = <8>;
};
...
other adc child nodes follow...
--
1.9.1
next prev parent reply other threads:[~2017-02-15 16:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-15 16:55 [PATCH 0/2] iio: allow to set STM32 ADC resolution Fabrice Gasnier
2017-02-15 16:55 ` Fabrice Gasnier [this message]
2017-02-19 12:09 ` [PATCH 1/2] dt-bindings: iio: stm32-adc: add option to set resolution Jonathan Cameron
2017-02-24 16:04 ` Fabrice Gasnier
2017-02-25 15:11 ` Jonathan Cameron
2017-02-28 8:21 ` Fabrice Gasnier
2017-02-28 8:34 ` Lars-Peter Clausen
2017-02-28 10:14 ` Fabrice Gasnier
2017-03-05 11:14 ` Jonathan Cameron
2017-02-27 14:29 ` Rob Herring
2017-02-15 16:55 ` [PATCH 2/2] iio: adc: stm32: add dt " Fabrice Gasnier
2017-02-19 12:09 ` Jonathan Cameron
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