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Date: Mon, 18 Oct 2021 13:04:40 +0800 From: dillon.minfei@...il.com To: mchehab@...nel.org, mchehab+huawei@...nel.org, hverkuil-cisco@...all.nl, ezequiel@...labora.com, gnurou@...il.com, pihsun@...omium.org, mcoquelin.stm32@...il.com, alexandre.torgue@...s.st.com, mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org, gabriel.fernandez@...com, gabriel.fernandez@...s.st.com Cc: patrice.chotard@...s.st.com, hugues.fruchet@...s.st.com, linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org, devicetree@...r.kernel.org, Dillon Min <dillon.minfei@...il.com> Subject: [PATCH v5 02/10] media: dt-bindings: media: add document for STM32 DMA2d bindings From: Dillon Min <dillon.minfei@...il.com> This adds documentation of device tree bindings for the STM32 DMA2D Signed-off-by: Dillon Min <dillon.minfei@...il.com> Reviewed-by: Rob Herring <robh@...nel.org> --- v5: no change. .../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@...il.com> + +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@...2b000 { + 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
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