From: Hugues Fruchet <hugues.fruchet@st.com>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans Verkuil <hverkuil@xs4all.nl>
Cc: <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-media@vger.kernel.org>,
Benjamin Gaignard <benjamin.gaignard@linaro.org>,
Yannick Fertre <yannick.fertre@st.com>,
Hugues Fruchet <hugues.fruchet@st.com>
Subject: [PATCH v5 1/8] dt-bindings: Document STM32 DCMI bindings
Date: Fri, 5 May 2017 17:31:20 +0200 [thread overview]
Message-ID: <1493998287-5828-2-git-send-email-hugues.fruchet@st.com> (raw)
In-Reply-To: <1493998287-5828-1-git-send-email-hugues.fruchet@st.com>
This adds documentation of device tree bindings for the STM32 DCMI
(Digital Camera Memory Interface).
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
---
.../devicetree/bindings/media/st,stm32-dcmi.txt | 46 ++++++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
new file mode 100644
index 0000000..f8baf65
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
@@ -0,0 +1,46 @@
+STMicroelectronics STM32 Digital Camera Memory Interface (DCMI)
+
+Required properties:
+- compatible: "st,stm32-dcmi"
+- reg: physical base address and length of the registers set for the device
+- interrupts: should contain IRQ line for the DCMI
+- resets: reference to a reset controller,
+ see Documentation/devicetree/bindings/reset/st,stm32-rcc.txt
+- clocks: list of clock specifiers, corresponding to entries in
+ the clock-names property
+- clock-names: must contain "mclk", which is the DCMI peripherial clock
+- pinctrl: the pincontrol settings to configure muxing properly
+ for pins that connect to DCMI device.
+ See Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt.
+- dmas: phandle to DMA controller node,
+ see Documentation/devicetree/bindings/dma/stm32-dma.txt
+- dma-names: must contain "tx", which is the transmit channel from DCMI to DMA
+
+DCMI supports a single port node with parallel bus. It should contain one
+'port' child node with child 'endpoint' node. Please refer to the bindings
+defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+
+ dcmi: dcmi@50050000 {
+ compatible = "st,stm32-dcmi";
+ reg = <0x50050000 0x400>;
+ interrupts = <78>;
+ resets = <&rcc STM32F4_AHB2_RESET(DCMI)>;
+ clocks = <&rcc 0 STM32F4_AHB2_CLOCK(DCMI)>;
+ clock-names = "mclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&dcmi_pins>;
+ dmas = <&dma2 1 1 0x414 0x3>;
+ dma-names = "tx";
+ port {
+ dcmi_0: endpoint {
+ remote-endpoint = <...>;
+ bus-width = <8>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ pclk-sample = <1>;
+ };
+ };
+ };
+
--
1.9.1
next prev parent reply other threads:[~2017-05-05 15:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-05 15:31 [PATCH v5 0/8] Add support for DCMI camera interface of STMicroelectronics STM32 SoC series Hugues Fruchet
2017-05-05 15:31 ` Hugues Fruchet [this message]
2017-05-05 15:31 ` [PATCH v5 2/8] [media] stm32-dcmi: STM32 DCMI camera interface driver Hugues Fruchet
2017-05-06 8:54 ` Hans Verkuil
2017-05-09 7:36 ` Hugues FRUCHET
2017-05-05 15:31 ` [PATCH v5 3/8] ARM: dts: stm32: Enable DCMI support on STM32F429 MCU Hugues Fruchet
2017-05-05 15:31 ` [PATCH v5 4/8] ARM: dts: stm32: Enable DCMI camera interface on STM32F429-EVAL board Hugues Fruchet
2017-05-05 15:31 ` [PATCH v5 5/8] ARM: dts: stm32: Enable STMPE1600 gpio expander of " Hugues Fruchet
2017-05-05 15:31 ` [PATCH v5 6/8] ARM: dts: stm32: Enable OV2640 camera support " Hugues Fruchet
2017-05-05 15:31 ` [PATCH v5 7/8] ARM: configs: stm32: STMPE1600 GPIO expander Hugues Fruchet
2017-05-05 15:31 ` [PATCH v5 8/8] ARM: configs: stm32: DCMI + OV2640 camera support Hugues Fruchet
2017-06-12 10:03 ` [PATCH v5 0/8] Add support for DCMI camera interface of STMicroelectronics STM32 SoC series Alexandre Torgue
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