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>, <benjamin.gaignard@linaro.org>,
<benjamin.gaignard@st.com>
Subject: [PATCH 4/7] Documentation: dt: iio: stm32-adc: optional dma support
Date: Thu, 19 Jan 2017 14:34:11 +0100 [thread overview]
Message-ID: <1484832854-6314-5-git-send-email-fabrice.gasnier@st.com> (raw)
In-Reply-To: <1484832854-6314-1-git-send-email-fabrice.gasnier@st.com>
STM32 ADC can use dma. Add dt documentation for optional dma support.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
index 49ed82e..5dfc88e 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
@@ -53,6 +53,11 @@ Required properties:
- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers" in
Documentation/devicetree/bindings/iio/iio-bindings.txt
+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.
+
Example:
adc: adc@40012000 {
compatible = "st,stm32f4-adc-core";
@@ -77,6 +82,8 @@ Example:
interrupt-parent = <&adc>;
interrupts = <0>;
st,adc-channels = <8>;
+ dmas = <&dma2 0 0 0x400 0x0>;
+ dma-names = "rx";
};
...
other adc child nodes follow...
--
1.9.1
next prev parent reply other threads:[~2017-01-19 13:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-19 13:34 [PATCH 0/7] Add support for triggered buffer mode to STM32 ADC Fabrice Gasnier
2017-01-19 13:34 ` [PATCH 1/7] iio: adc: stm32: add support for triggered buffer mode Fabrice Gasnier
2017-01-22 12:53 ` Jonathan Cameron
[not found] ` <2c683b78-6c78-3224-0646-37793deba0e9@st.com>
2017-01-28 14:02 ` Jonathan Cameron
2017-01-19 13:34 ` [PATCH 2/7] iio: adc: stm32: Enable use of stm32 timer triggers Fabrice Gasnier
2017-01-19 23:31 ` kbuild test robot
2017-01-21 12:55 ` Jonathan Cameron
2017-01-22 12:55 ` Jonathan Cameron
2017-01-24 14:37 ` Fabrice Gasnier
2017-01-28 12:46 ` Jonathan Cameron
2017-01-19 13:34 ` [PATCH 3/7] iio: adc: stm32: add trigger polarity extended attribute Fabrice Gasnier
2017-01-22 12:58 ` Jonathan Cameron
2017-01-24 14:41 ` Fabrice Gasnier
2017-01-19 13:34 ` Fabrice Gasnier [this message]
2017-01-21 20:54 ` [PATCH 4/7] Documentation: dt: iio: stm32-adc: optional dma support Rob Herring
2017-01-19 13:34 ` [PATCH 5/7] iio: adc: stm32: add " Fabrice Gasnier
2017-01-22 13:14 ` Jonathan Cameron
2017-01-24 14:43 ` Fabrice Gasnier
2017-01-24 18:25 ` Jonathan Cameron
2017-01-19 13:34 ` [PATCH 6/7] ARM: dts: stm32: Enable dma by default on stm32f4 adc Fabrice Gasnier
2017-01-19 13:34 ` [PATCH 7/7] ARM: dts: stm32: Enable pwm1 and pwm3 for stm32f469-eval Fabrice Gasnier
2017-01-20 0:09 ` kbuild test robot
2017-01-20 10:19 ` Alexandre Torgue
2017-01-20 10:36 ` Fabrice Gasnier
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