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Message-ID: <20240816212741.GA2225734-robh@kernel.org>
Date: Fri, 16 Aug 2024 15:27:41 -0600
From: Rob Herring <robh@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>,
"moderated list:ARM/FREESCALE LAYERSCAPE ARM ARCHITECTURE" <linux-arm-kernel@...ts.infradead.org>,
imx@...ts.linux.dev
Subject: Re: [PATCH v2 1/1] dt-bindings: board: convert fsl-board.txt to yaml
On Tue, Aug 13, 2024 at 12:36:29PM -0400, Frank Li wrote:
> Convert binding doc fsl-board.txt to yaml format. split to 3 part
> fsl,bcsr.yaml, fsl,fpga-qixis.yaml, fsl,fpga-qixis-i2c.yaml
>
> Additional change for fsl,fpga-qixis.yaml
> - Add childnode mdio-mux-emi*
> - Add compatible string fsl,ls1043aqds-fpga, fsl,ls1043ardb-fpga,
> fsl,ls1046aqds-fpga, fsl,ls1046ardb-fpga, fsl,ls208xaqds-fpga,
> fsl,ls1043ardb-cpld, fsl,ls1046ardb-cpld, fsl,ls1088aqds-fpga,
> fsl,ls1088ardb-fpga, fsl,ls2080aqds-fpga, fsl,ls2080ardb-fpga.
> - Change address to 32bit in example.
>
> Additional change for fsl,fpga-qixis-i2c.yaml
> - Add mux-controller
> - Add compatible string fsl,ls1028aqds-fpga, fsl,lx2160aqds-fpga
>
> Fix below warning:
>
> arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dtb: /soc/i2c@...0000/fpga@66: failed to match any schema with compatible: ['fsl,ls1028aqds-fpga', 'fsl,fpga-qixis-i2c', 'simple-mfd']
>
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
> Change from v1 to v2
> - drop description in fsl,bcsr.yaml
> - bsc9132qds is too old, their dts have not simple-mfd.
> - split qixis-i2c compatible to two group, one with simple-mfd and the
> other one without simple-mfd.
> - Add new full example for ls1028
> - Remove [0-9], keep @ for mdio-mux-emi. Dts need be update to avoid
> warning
> - fix typo dt-binding in subject
> ---
> .../devicetree/bindings/board/fsl,bcsr.yaml | 32 ++++++++
> .../bindings/board/fsl,fpga-qixis-i2c.yaml | 70 ++++++++++++++++
> .../bindings/board/fsl,fpga-qixis.yaml | 81 +++++++++++++++++++
> .../devicetree/bindings/board/fsl-board.txt | 81 -------------------
> .../boot/dts/freescale/fsl-ls1043a-qds.dts | 2 +-
> 5 files changed, 184 insertions(+), 82 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/board/fsl,bcsr.yaml
> create mode 100644 Documentation/devicetree/bindings/board/fsl,fpga-qixis-i2c.yaml
> create mode 100644 Documentation/devicetree/bindings/board/fsl,fpga-qixis.yaml
> delete mode 100644 Documentation/devicetree/bindings/board/fsl-board.txt
>
> diff --git a/Documentation/devicetree/bindings/board/fsl,bcsr.yaml b/Documentation/devicetree/bindings/board/fsl,bcsr.yaml
> new file mode 100644
> index 0000000000000..df3dd8399671f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/board/fsl,bcsr.yaml
> @@ -0,0 +1,32 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/board/fsl,bcsr.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Board Control and Status
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +properties:
> + compatible:
> + enum:
> + - fsl,mpc8360mds-bcsr
> +
> + reg:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + board@...00000 {
> + compatible = "fsl,mpc8360mds-bcsr";
> + reg = <0xf8000000 0x8000>;
> + };
> +
> diff --git a/Documentation/devicetree/bindings/board/fsl,fpga-qixis-i2c.yaml b/Documentation/devicetree/bindings/board/fsl,fpga-qixis-i2c.yaml
> new file mode 100644
> index 0000000000000..28b37772fb656
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/board/fsl,fpga-qixis-i2c.yaml
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/board/fsl,fpga-qixis-i2c.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale on-board FPGA connected on I2C bus
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - enum:
> + - fsl,bsc9132qds-fpga
> + - const: fsl,fpga-qixis-i2c
> + - items:
> + - enum:
> + - fsl,ls1028aqds-fpga
> + - fsl,lx2160aqds-fpga
> + - const: fsl,fpga-qixis-i2c
> + - const: simple-mfd
> +
> + interrupts:
> + maxItems: 1
> +
> + reg:
> + maxItems: 1
> +
> + mux-controller:
> + $ref: /schemas/mux/reg-mux.yaml
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + board-control@66 {
> + compatible = "fsl,bsc9132qds-fpga", "fsl,fpga-qixis-i2c";
> + reg = <0x66>;
> + };
> + };
> +
> + - |
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + board-control@66 {
> + compatible = "fsl,ls1028aqds-fpga", "fsl,fpga-qixis-i2c",
> + "simple-mfd";
> + reg = <0x66>;
> +
> + mux-controller {
> + compatible = "reg-mux";
> + #mux-control-cells = <1>;
> + mux-reg-masks = <0x54 0xf0>; /* 0: reg 0x54, bits 7:4 */
> + };
> + };
> + };
> +
> diff --git a/Documentation/devicetree/bindings/board/fsl,fpga-qixis.yaml b/Documentation/devicetree/bindings/board/fsl,fpga-qixis.yaml
> new file mode 100644
> index 0000000000000..4d4eb45ce64cd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/board/fsl,fpga-qixis.yaml
> @@ -0,0 +1,81 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/board/fsl,fpga-qixis.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale on-board FPGA/CPLD
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - const: fsl,p1022ds-fpga
> + - const: fsl,fpga-ngpixis
> + - items:
> + - enum:
> + - fsl,ls1088aqds-fpga
> + - fsl,ls1088ardb-fpga
> + - fsl,ls2080aqds-fpga
> + - fsl,ls2080ardb-fpga
> + - const: fsl,fpga-qixis
> + - items:
> + - enum:
> + - fsl,ls1043aqds-fpga
> + - fsl,ls1043ardb-fpga
> + - fsl,ls1046aqds-fpga
> + - fsl,ls1046ardb-fpga
> + - fsl,ls208xaqds-fpga
> + - const: fsl,fpga-qixis
> + - const: simple-mfd
> + - enum:
> + - fsl,ls1043ardb-cpld
> + - fsl,ls1046ardb-cpld
> + - fsl,t1040rdb-cpld
> + - fsl,t1042rdb-cpld
> + - fsl,t1042rdb_pi-cpld
> +
> + interrupts:
> + maxItems: 1
> +
> + reg:
> + maxItems: 1
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 1
> +
> + ranges:
> + maxItems: 1
> +
> +patternProperties:
> + '^mdio-mux-emi@[a-f0-9]+$':
If we're going to update the dts file, this should be 'mdio-mux@'. I'll
fix this when applying. The rest looks good.
Note that p5040ds.dts has 2 nodes at the same reg address, but different
bit offsets. The way we handle that is adding the register starting bit
offset to the unit-address like this:
mdio-mux@9,1 (mux-mask 0x6)
mdio-mux@9,3 (mux-mask 0x78)
Rob
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