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Date: Wed, 30 Oct 2019 11:41:06 +0100
From: Hans Verkuil <hverkuil@...all.nl>
To: Benjamin Gaignard <benjamin.gaignard@...com>, mchehab@...nel.org,
robh+dt@...nel.org, mark.rutland@....com, alexandre.torgue@...com,
yannick.fertre@...com, philippe.cornu@...com, hugues.fruchet@...com
Cc: linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] dt-bindings: media: Convert stm32 dcmi bindings to
json-schema
On 10/14/19 11:20 AM, Benjamin Gaignard wrote:
> Convert the STM32 dcmi binding to DT schema format using json-schema
It looks like the MAINTAINERS entry isn't updated. Can you post a separate patch for that?
Hans
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
> ---
> changes in v3:
> -use (GPL-2.0-only OR BSD-2-Clause) license
>
> changes in v2:
> - use BSD-2-Clause license
> - remove useless dma descriptions
> - fix clock property
> - add additionalProperties: false
> - fix reset indentation
>
> .../devicetree/bindings/media/st,stm32-dcmi.txt | 45 -----------
> .../devicetree/bindings/media/st,stm32-dcmi.yaml | 86 ++++++++++++++++++++++
> 2 files changed, 86 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@...50000 {
> - 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..3fe778cb5cc3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
> @@ -0,0 +1,86 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%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@...com>
> +
> +properties:
> + compatible:
> + const: st,stm32-dcmi
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + clock-names:
> + items:
> + - const: mclk
> +
> + dmas:
> + maxItems: 1
> +
> + dma-names:
> + 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.
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - clocks
> + - clock-names
> + - resets
> + - dmas
> + - dma-names
> + - port
> +
> +additionalProperties: false
> +
> +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@...06000 {
> + 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>;
> + };
> + };
> + };
> +
> +...
>
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