| Message ID | 20220801214718.16943-1-prabhakar.mahadev-lad.rj@bp.renesas.com |
|---|---|
| Headers | show |
| Series | Add driver for CSI2 and CRU modules found on Renesas RZ/G2L SoC | expand |
On 01/08/2022 23:47, Lad Prabhakar wrote: > Document the CSI-2 block which is part of CRU found in Renesas > RZ/G2L SoC. > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > --- > RFC v2 -> v1 Too many "media" in the subject prefixes. > * Fixed review comments pointed by Rob and Jacopo. > > RFC v1 -> RFC v2 > * New patch > --- > .../bindings/media/renesas,rzg2l-csi2.yaml | 149 ++++++++++++++++++ > 1 file changed, 149 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml > > diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml > new file mode 100644 > index 000000000000..f82f88c096df > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml > @@ -0,0 +1,149 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +# Copyright (C) 2022 Renesas Electronics Corp. > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/media/renesas,rzg2l-csi2.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Renesas RZ/G2L (and alike SoC's) MIPI CSI-2 receiver > + > +maintainers: > + - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > + > +description: > + The CSI-2 receiver device provides MIPI CSI-2 capabilities for the Renesas RZ/G2L > + (and alike SoCs). MIPI CSI-2 is part of the CRU block which is used in conjunction > + with the Image Processing module, which provides the video capture capabilities. > + > +properties: > + compatible: > + oneOf: > + - items: > + - enum: > + - renesas,r9a07g044-csi2 # RZ/G2{L,LC} > + - renesas,r9a07g054-csi2 # RZ/V2L > + - const: renesas,rzg2l-csi2 > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + interrupt-names: > + const: csi2_link > + > + clocks: > + items: > + - description: Internal clock for connecting CRU and MIPI > + - description: CRU Main clock > + - description: CPU Register access clock > + > + clock-names: > + items: > + - const: sysclk > + - const: vclk > + - const: pclk > + > + power-domains: > + maxItems: 1 > + > + resets: > + items: > + - description: CRU_CMN_RSTB reset terminal > + > + reset-names: > + const: cmn-rstb > + > + ports: > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port@0: > + $ref: /schemas/graph.yaml#/$defs/port-base > + unevaluatedProperties: false > + description: > + Input port node, single endpoint describing the CSI-2 transmitter. > + > + properties: > + endpoint: > + $ref: video-interfaces.yaml# > + unevaluatedProperties: false > + > + properties: > + data-lanes: > + minItems: 1 > + maxItems: 4 > + items: > + maximum: 4 > + > + required: > + - clock-lanes > + - data-lanes > + > + port@1: > + $ref: /schemas/graph.yaml#/properties/port > + description: > + Output port node, Image Processing block connected to the CSI-2 receiver. > + > + required: > + - port@0 > + - port@1 > + > +required: > + - compatible > + - reg > + - interrupts > + - clocks > + - clock-names > + - power-domains > + - resets > + - reset-names > + - ports > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/r9a07g044-cpg.h> > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + > + csi20: csi2@10830400 { Node name just "csi" https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation > + compatible = "renesas,r9a07g044-csi2", "renesas,rzg2l-csi2"; > + reg = <0x10830400 0xfc00>; Please use 4-space indentation for example DTS. > + interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>; > + clocks = <&cpg CPG_MOD R9A07G044_CRU_SYSCLK>, > + <&cpg CPG_MOD R9A07G044_CRU_VCLK>, > + <&cpg CPG_MOD R9A07G044_CRU_PCLK>; > + clock-names = "sysclk", "vclk", "pclk"; > + power-domains = <&cpg>; > + resets = <&cpg R9A07G044_CRU_CMN_RSTB>; > + reset-names = "cmn-rstb"; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + csi2_in: endpoint { > + clock-lanes = <0>; > + data-lanes = <1 2>; > + remote-endpoint = <&ov5645_ep>; > + }; > + }; > + > + port@1 { > + #address-cells = <1>; > + #size-cells = <0>; > + > + reg = <1>; > + > + csi2cru: endpoint@0 { > + reg = <0>; > + remote-endpoint = <&crucsi2>; > + }; > + }; > + }; > + }; Best regards, Krzysztof
Hi Krzysztof, Thank you for the review. On Tue, Aug 2, 2022 at 8:36 AM Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote: > > On 01/08/2022 23:47, Lad Prabhakar wrote: > > Document the CSI-2 block which is part of CRU found in Renesas > > RZ/G2L SoC. > > > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > --- > > RFC v2 -> v1 > > Too many "media" in the subject prefixes. > I followed the pattern seen by "git log --oneline Documentation/devicetree/bindings/media/", but I do agree I can drop the extra "media" after "dt-bindings:" > > * Fixed review comments pointed by Rob and Jacopo. > > > > RFC v1 -> RFC v2 > > * New patch > > --- > > .../bindings/media/renesas,rzg2l-csi2.yaml | 149 ++++++++++++++++++ > > 1 file changed, 149 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml > > > > diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml > > new file mode 100644 > > index 000000000000..f82f88c096df > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml > > @@ -0,0 +1,149 @@ > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > > +# Copyright (C) 2022 Renesas Electronics Corp. > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/media/renesas,rzg2l-csi2.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Renesas RZ/G2L (and alike SoC's) MIPI CSI-2 receiver > > + > > +maintainers: > > + - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > + > > +description: > > + The CSI-2 receiver device provides MIPI CSI-2 capabilities for the Renesas RZ/G2L > > + (and alike SoCs). MIPI CSI-2 is part of the CRU block which is used in conjunction > > + with the Image Processing module, which provides the video capture capabilities. > > + > > +properties: > > + compatible: > > + oneOf: > > + - items: > > + - enum: > > + - renesas,r9a07g044-csi2 # RZ/G2{L,LC} > > + - renesas,r9a07g054-csi2 # RZ/V2L > > + - const: renesas,rzg2l-csi2 > > + > > + reg: > > + maxItems: 1 > > + > > + interrupts: > > + maxItems: 1 > > + > > + interrupt-names: > > + const: csi2_link > > + > > + clocks: > > + items: > > + - description: Internal clock for connecting CRU and MIPI > > + - description: CRU Main clock > > + - description: CPU Register access clock > > + > > + clock-names: > > + items: > > + - const: sysclk > > + - const: vclk > > + - const: pclk > > + > > + power-domains: > > + maxItems: 1 > > + > > + resets: > > + items: > > + - description: CRU_CMN_RSTB reset terminal > > + > > + reset-names: > > + const: cmn-rstb > > + > > + ports: > > + $ref: /schemas/graph.yaml#/properties/ports > > + > > + properties: > > + port@0: > > + $ref: /schemas/graph.yaml#/$defs/port-base > > + unevaluatedProperties: false > > + description: > > + Input port node, single endpoint describing the CSI-2 transmitter. > > + > > + properties: > > + endpoint: > > + $ref: video-interfaces.yaml# > > + unevaluatedProperties: false > > + > > + properties: > > + data-lanes: > > + minItems: 1 > > + maxItems: 4 > > + items: > > + maximum: 4 > > + > > + required: > > + - clock-lanes > > + - data-lanes > > + > > + port@1: > > + $ref: /schemas/graph.yaml#/properties/port > > + description: > > + Output port node, Image Processing block connected to the CSI-2 receiver. > > + > > + required: > > + - port@0 > > + - port@1 > > + > > +required: > > + - compatible > > + - reg > > + - interrupts > > + - clocks > > + - clock-names > > + - power-domains > > + - resets > > + - reset-names > > + - ports > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + #include <dt-bindings/clock/r9a07g044-cpg.h> > > + #include <dt-bindings/interrupt-controller/arm-gic.h> > > + > > + csi20: csi2@10830400 { > > Node name just "csi" > > https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation > OK will replace it with csi. > > > + compatible = "renesas,r9a07g044-csi2", "renesas,rzg2l-csi2"; > > + reg = <0x10830400 0xfc00>; > > Please use 4-space indentation for example DTS. > Sure will do. Cheers, Prabhakar > > + interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&cpg CPG_MOD R9A07G044_CRU_SYSCLK>, > > + <&cpg CPG_MOD R9A07G044_CRU_VCLK>, > > + <&cpg CPG_MOD R9A07G044_CRU_PCLK>; > > + clock-names = "sysclk", "vclk", "pclk"; > > + power-domains = <&cpg>; > > + resets = <&cpg R9A07G044_CRU_CMN_RSTB>; > > + reset-names = "cmn-rstb"; > > + > > + ports { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + port@0 { > > + reg = <0>; > > + > > + csi2_in: endpoint { > > + clock-lanes = <0>; > > + data-lanes = <1 2>; > > + remote-endpoint = <&ov5645_ep>; > > + }; > > + }; > > + > > + port@1 { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + reg = <1>; > > + > > + csi2cru: endpoint@0 { > > + reg = <0>; > > + remote-endpoint = <&crucsi2>; > > + }; > > + }; > > + }; > > + }; > > > Best regards, > Krzysztof
On Mon, Aug 1, 2022 at 10:47 PM Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > Hi All, > > This patch series aims to add driver support to CRU module found > on Renesas RZ/G2L SoC. > > The Camera Data Receiving Unit (CRU) consists of a MIPI CSI-2 > block and an Image Processing block. The Image Processing block > can receive video data received from the external Digital Parallel > Interface or MIPI CSI-2 block, and perform appropriate image > processing for each. > > More details: > * https://renesas.info/wiki/File:CRU.png > * https://www.renesas.com/document/mah/rzg2l-group-rzg2lc-group-users-manual-hardware-0?language=en&r=1467981 > > Currently the driver has been tested using yavta and Gstreamer > on RZ/G2L SMARC EVK using the ov5645 sensor on CSI2 interface > only. > > RFC v2: https://patchwork.kernel.org/project/linux-renesas-soc/cover/20220121010543.31385-1-prabhakar.mahadev-lad.rj@bp.renesas.com/ > > RFC v1: https://patchwork.kernel.org/project/linux-renesas-soc/cover/20211207012351.15754-1-prabhakar.mahadev-lad.rj@bp.renesas.com/ > > Cheers, > Prabhakar > > Lad Prabhakar (4): > media: dt-bindings: media: Document RZ/G2L CSI-2 block > media: dt-bindings: media: Document RZ/G2L CRU > media: platform: Add Renesas RZ/G2L MIPI CSI-2 receiver driver > media: platform: Add Renesas RZ/G2L CRU driver > > .../bindings/media/renesas,rzg2l-cru.yaml | 142 ++++ > .../bindings/media/renesas,rzg2l-csi2.yaml | 149 ++++ > drivers/media/platform/renesas/Kconfig | 1 + > drivers/media/platform/renesas/Makefile | 1 + > .../media/platform/renesas/rzg2l-cru/Kconfig | 34 + > .../media/platform/renesas/rzg2l-cru/Makefile | 6 + > .../platform/renesas/rzg2l-cru/rzg2l-core.c | 371 +++++++++ > .../platform/renesas/rzg2l-cru/rzg2l-cru.h | 144 ++++ > .../platform/renesas/rzg2l-cru/rzg2l-csi2.c | 702 +++++++++++++++++ > .../platform/renesas/rzg2l-cru/rzg2l-csi2.h | 49 ++ > .../platform/renesas/rzg2l-cru/rzg2l-dma.c | 728 ++++++++++++++++++ > .../platform/renesas/rzg2l-cru/rzg2l-v4l2.c | 354 +++++++++ > 12 files changed, 2681 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml > create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml > create mode 100644 drivers/media/platform/renesas/rzg2l-cru/Kconfig > create mode 100644 drivers/media/platform/renesas/rzg2l-cru/Makefile > create mode 100644 drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c > create mode 100644 drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h > create mode 100644 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c > create mode 100644 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.h > create mode 100644 drivers/media/platform/renesas/rzg2l-cru/rzg2l-dma.c > create mode 100644 drivers/media/platform/renesas/rzg2l-cru/rzg2l-v4l2.c > Gentle ping, request to review the driver code. Cheers, Prabhakar