Re: [V4,1/8] dt-bindings: mediatek: Add mediatek,mt8195-jpgdec compatible

From: AngeloGioacchino Del Regno  <angelogioacchino.delregno@collabora.com>
To: Irui Wang <irui.wang@mediatek.com>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Tzung-Bi Shih <tzungbi@chromium.org>,
	nicolas.dufresne@collabora.com, wenst@chromium.org
Cc: Project_Global_Chrome_Upstream_Group@mediatek.com,
	linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org,
	Tomasz Figa <tfiga@chromium.org>,
	xia.jiang@mediatek.com, maoguang.meng@mediatek.com,
	kyrie wu <kyrie.wu@mediatek.com>,
	srv_heupstream@mediatek.com
Subject: Re: [V4,1/8] dt-bindings: mediatek: Add mediatek,mt8195-jpgdec compatible
Date: Tue, 5 Jul 2022 15:00:14 +0200	[thread overview]
Message-ID: <7d5986ad-40a4-f15b-8d14-aad5248379b3@collabora.com> (raw)
In-Reply-To: <20220627025540.8901-2-irui.wang@mediatek.com>

Il 27/06/22 04:55, Irui Wang ha scritto:
> From: kyrie wu <kyrie.wu@mediatek.com>
> 
> Add mediatek,mt8195-jpgdec compatible to binding document.
> 
> Signed-off-by: kyrie wu <kyrie.wu@mediatek.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#
> +

...snip...

> +
> +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 {

Additionally to Rob's review, which I of course fully agree on, this example
devicetree does *not* work on MT8195.

[   13.015716] mtk-jpegdec-hw 1a040000.jpgdec: Adding to iommu group 1

[   13.025383] mtk-jpegdec-hw 1a050000.jpgdec: Adding to iommu group 1

[   13.034814] mtk-jpegdec-hw 1b040000.jpgdec: Adding to iommu group 1

[   13.041672] mtk-jpeg soc:jpgdec_master: invalid resource

[   13.049758] mtk-jpeg: probe of soc:jpgdec_master failed with error -22

Regards,
Angelo

> +                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@1a040000 {
> +                    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@1a050000 {
> +                    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@1b040000 {
> +                    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>;
> +                };
> +        };
> +    };