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Subject[PATCH] dt-bindings: media: Convert stm32 dcmi bindings to json-schema
Date
Convert the STM32 dcmi binding to DT schema format using json-schema

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
---
.../devicetree/bindings/media/st,stm32-dcmi.txt | 45 ----------
.../devicetree/bindings/media/st,stm32-dcmi.yaml | 97 ++++++++++++++++++++++
2 files changed, 97 insertions(+), 45 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml

diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
deleted file mode 100644
index 3122ded82eb4..000000000000
--- a/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
+++ /dev/null
@@ -1,45 +0,0 @@
-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.yaml.
-- 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>;
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
new file mode 100644
index 000000000000..50e8cfed06f3
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
@@ -0,0 +1,97 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/st,stm32-dcmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Digital Camera Memory Interface (DCMI) binding
+
+maintainers:
+ - Hugues Fruchet <hugues.fruchet@st.com>
+
+properties:
+ compatible:
+ const: st,stm32-dcmi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Module Clock
+
+ clock-names:
+ items:
+ - const: mclk
+
+ pinctrl-names: true
+
+ dmas:
+ description:
+ One DMA channel specifier following the convention outlined
+ in bindings/dma/dma.txt
+ maxItems: 1
+
+ dma-names:
+ description:
+ There must be one channel named "tx" for transmit
+ maxItems: 1
+ additionalItems: true
+ items:
+ - const: tx
+
+ resets:
+ maxItems: 1
+
+ port:
+ type: object
+ description:
+ 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.
+
+patternProperties:
+ "^pinctrl-[0-9]+$": true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - dmas
+ - dma-names
+ - port
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ #include <dt-bindings/reset/stm32mp1-resets.h>
+ dcmi: dcmi@4c006000 {
+ compatible = "st,stm32-dcmi";
+ reg = <0x4c006000 0x400>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&rcc CAMITF_R>;
+ clocks = <&rcc DCMI>;
+ clock-names = "mclk";
+ dmas = <&dmamux1 75 0x400 0x0d>;
+ dma-names = "tx";
+
+ port {
+ dcmi_0: endpoint {
+ remote-endpoint = <&ov5640_0>;
+ bus-width = <8>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ pclk-sample = <1>;
+ };
+ };
+ };
+
+...
--
2.15.0
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