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Date: Fri, 1 Jul 2022 09:29:03 -0600
From: Rob Herring <robh@...nel.org>
To: Irui Wang <irui.wang@...iatek.com>
Cc: Hans Verkuil <hverkuil-cisco@...all.nl>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Tzung-Bi Shih <tzungbi@...omium.org>,
angelogioacchino.delregno@...labora.com,
nicolas.dufresne@...labora.com, wenst@...omium.org,
Project_Global_Chrome_Upstream_Group@...iatek.com,
linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org,
Tomasz Figa <tfiga@...omium.org>, xia.jiang@...iatek.com,
maoguang.meng@...iatek.com, kyrie wu <kyrie.wu@...iatek.com>,
srv_heupstream@...iatek.com
Subject: Re: [V4,1/8] dt-bindings: mediatek: Add mediatek,mt8195-jpgdec
compatible
On Mon, Jun 27, 2022 at 10:55:33AM +0800, Irui Wang wrote:
> From: kyrie wu <kyrie.wu@...iatek.com>
>
> Add mediatek,mt8195-jpgdec compatible to binding document.
>
> Signed-off-by: kyrie wu <kyrie.wu@...iatek.com>
> ---
> .../media/mediatek,mt8195-jpegdec.yaml | 176 ++++++++++++++++++
> 1 file changed, 176 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml
>
> diff --git a/Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml b/Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml
> new file mode 100644
> index 000000000000..8a255e8e2e09
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,mt8195-jpegdec.yaml
> @@ -0,0 +1,176 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/mediatek,mt8195-jpegdec.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek JPEG Encoder Device Tree Bindings
s/Device Tree Bindings//
> +
> +maintainers:
> + - kyrie wu <kyrie.wu@...iatek.corp-partner.google.com>
> +
> +description: |-
Don't need '|-'
> + MediaTek JPEG Decoder is the JPEG decode hardware present in MediaTek SoCs
> +
> +properties:
> + compatible:
> + items:
> + - const: mediatek,mt8195-jpgdec
> +
> + mediatek,jpegdec-multi-core:
> + type: boolean
> + description: |
Don't need '|'
> + Indicates whether the jpeg encoder has multiple cores or not.
Can't this be implied from the child nodes?
> +
> + power-domains:
> + maxItems: 1
> +
> + iommus:
> + maxItems: 6
> + description: |
> + Points to the respective IOMMU block with master port as argument, see
> + Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
> + Ports are according to the HW.
> +
> + "#address-cells":
> + const: 2
> +
> + "#size-cells":
> + const: 2
> +
> + ranges: true
> +
> +# Required child node:
> +patternProperties:
> + "^jpgdec@[0-9a-f]+$":
> + type: object
> + description: |
> + The jpeg decoder hardware device node which should be added as subnodes to
> + the main jpeg node.
> +
> + properties:
> + compatible:
> + const: mediatek,mt8195-jpgdec-hw
> +
> + reg:
> + maxItems: 1
> +
> + hw_id:
So a similar, but different property from the video codec? Either way,
this property should go. We don't do indexes in DT.
Why do you need this?
> + description: |
> + MT8195 decoding hardware id value. MT8195 has three decoding hardwares,
> + which is represented by this parameter.
> +
> + iommus:
> + minItems: 1
> + maxItems: 32
> + description: |
> + List of the hardware port in respective IOMMU block for current Socs.
> + Refer to bindings/iommu/mediatek,iommu.yaml.
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + clock-names:
> + items:
> + - const: jpgdec
> +
> + power-domains:
> + maxItems: 1
> +
> + required:
> + - compatible
> + - reg
> + - hw_id
> + - iommus
> + - interrupts
> + - clocks
> + - clock-names
> + - power-domains
> +
> + additionalProperties: false
> +
> +required:
> + - compatible
> + - power-domains
> + - iommus
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/memory/mt8195-memory-port.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/clock/mt8195-clk.h>
> + #include <dt-bindings/power/mt8195-power.h>
> +
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + jpgdec_master {
> + compatible = "mediatek,mt8195-jpgdec";
> + mediatek,jpegdec-multi-core;
> + power-domains = <&spm MT8195_POWER_DOMAIN_VDEC1>;
> + iommus = <&iommu_vpp M4U_PORT_L19_JPGDEC_WDMA0>,
> + <&iommu_vpp M4U_PORT_L19_JPGDEC_BSDMA0>,
> + <&iommu_vpp M4U_PORT_L19_JPGDEC_WDMA1>,
> + <&iommu_vpp M4U_PORT_L19_JPGDEC_BSDMA1>,
> + <&iommu_vpp M4U_PORT_L19_JPGDEC_BUFF_OFFSET1>,
> + <&iommu_vpp M4U_PORT_L19_JPGDEC_BUFF_OFFSET0>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + jpgdec@...40000 {
> + compatible = "mediatek,mt8195-jpgdec-hw";
> + reg = <0 0x1a040000 0 0x10000>;/* JPGDEC_C0 */
> + hw_id = <0>;
> + iommus = <&iommu_vdo M4U_PORT_L19_JPGDEC_WDMA0>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_BSDMA0>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_WDMA1>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_BSDMA1>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_BUFF_OFFSET1>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_BUFF_OFFSET0>;
> + interrupts = <GIC_SPI 343 IRQ_TYPE_LEVEL_HIGH 0>;
> + clocks = <&vencsys CLK_VENC_JPGDEC>;
> + clock-names = "jpgdec";
> + power-domains = <&spm MT8195_POWER_DOMAIN_VDEC0>;
> + };
> +
> + jpgdec@...50000 {
> + compatible = "mediatek,mt8195-jpgdec-hw";
> + reg = <0 0x1a050000 0 0x10000>;/* JPGDEC_C1 */
> + hw_id = <1>;
> + iommus = <&iommu_vdo M4U_PORT_L19_JPGDEC_WDMA0>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_BSDMA0>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_WDMA1>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_BSDMA1>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_BUFF_OFFSET1>,
> + <&iommu_vdo M4U_PORT_L19_JPGDEC_BUFF_OFFSET0>;
> + interrupts = <GIC_SPI 344 IRQ_TYPE_LEVEL_HIGH 0>;
> + clocks = <&vencsys CLK_VENC_JPGDEC_C1>;
> + clock-names = "jpgdec";
> + power-domains = <&spm MT8195_POWER_DOMAIN_VDEC1>;
> + };
> +
> + jpgdec@...40000 {
> + compatible = "mediatek,mt8195-jpgdec-hw";
> + reg = <0 0x1b040000 0 0x10000>;/* JPGDEC_C2 */
> + hw_id = <2>;
> + iommus = <&iommu_vpp M4U_PORT_L20_JPGDEC_WDMA0>,
> + <&iommu_vpp M4U_PORT_L20_JPGDEC_BSDMA0>,
> + <&iommu_vpp M4U_PORT_L20_JPGDEC_WDMA1>,
> + <&iommu_vpp M4U_PORT_L20_JPGDEC_BSDMA1>,
> + <&iommu_vpp M4U_PORT_L20_JPGDEC_BUFF_OFFSET1>,
> + <&iommu_vpp M4U_PORT_L20_JPGDEC_BUFF_OFFSET0>;
> + interrupts = <GIC_SPI 348 IRQ_TYPE_LEVEL_HIGH 0>;
> + clocks = <&vencsys_core1 CLK_VENC_CORE1_JPGDEC>;
> + clock-names = "jpgdec";
> + power-domains = <&spm MT8195_POWER_DOMAIN_VDEC2>;
> + };
> + };
> + };
> --
> 2.18.0
>
>
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