[PATCH v2 2/9] media: dt-bindings: media: add document for STM32 DMA2d bindings

From: dillon . minfei
Date: Thu Jul 15 2021 - 05:24:47 EST


From: Dillon Min <dillon.minfei@xxxxxxxxx>

This adds documentation of device tree bindings for the STM32 DMA2D

Signed-off-by: Dillon Min <dillon.minfei@xxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
v2: add Reviewed-by tag.

.../devicetree/bindings/media/st,stm32-dma2d.yaml | 71 ++++++++++++++++++++++
1 file changed, 71 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dma2d.yaml

diff --git a/Documentation/devicetree/bindings/media/st,stm32-dma2d.yaml b/Documentation/devicetree/bindings/media/st,stm32-dma2d.yaml
new file mode 100644
index 000000000000..f97b4a246605
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/st,stm32-dma2d.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/st,stm32-dma2d.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Chrom-Art Accelerator DMA2D binding
+
+description:
+ Chrom-ART Accelerator(DMA2D), graphical hardware accelerator
+ enabling enhanced graphical user interface with minimum CPU load
+
+ It can perform the following operations.
+
+ - Filling a part or the whole of a destination image with a specific color.
+ - Copying a part or the whole of a source image into a part or the whole of
+ a destination image.
+ - Copying a part or the whole of a source image into a part or the whole of
+ a destination image with a pixel format conversion.
+ - Blending a part and/or two complete source images with different pixel
+ format and copy the result into a part or the whole of a destination image
+ with a different color format. (TODO)
+
+
+maintainers:
+ - Dillon Min <dillon.minfei@xxxxxxxxx>
+
+properties:
+ compatible:
+ const: st,stm32-dma2d
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: dma2d
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/stm32fx-clock.h>
+ #include <dt-bindings/mfd/stm32f4-rcc.h>
+ dma2d: dma2d@4002b000 {
+ compatible = "st,stm32-dma2d";
+ reg = <0x4002b000 0xc00>;
+ interrupts = <90>;
+ resets = <&rcc STM32F4_AHB1_RESET(DMA2D)>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(DMA2D)>;
+ clock-names = "dma2d";
+ };
+
+...
--
2.7.4