| Message ID | 20221129103509.9958-9-hayashi.kunihiko@socionext.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | dt-bidnings: soc: Introduce UniPhier miscelaneous register blocks | expand |
On 01/12/2022 10:30, Kunihiko Hayashi wrote: > Hi Krzysztof, > > On 2022/11/29 19:35, Kunihiko Hayashi wrote: >> Add DT binding schema for components belonging to the platform-specific >> AHCI glue layer implemented in UniPhier SoCs. >> >> This AHCI glue layer works as a sideband logic for the host controller, >> including core reset, PHYs, and some signals to the controller. >> >> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> > > (snip) > >> +examples: >> + - | >> + sata-controller@65700000 { >> + compatible = "socionext,uniphier-pxs3-ahci-glue", "simple-mfd"; >> + reg = <0x65b00000 0x400>; >> + #address-cells = <1>; >> + #size-cells = <1>; >> + ranges = <0 0x65700000 0x100>; > > In PATCH 7/8, you suggested that the node name of "USB glue layer" should > changes to the generic node name "usb@...". > > However, in case of this "AHCI glue layer", I can't change "sata-controller" > to the generic node name "sata@...", because ata/sata-common.yaml has pattern > "^sata(@.*)?$", and the changed node matches this pattern unintentionally. > > This layer isn't a sata host controller, so it's hard to give a generic name > to this node. I'd like you opinion. Yeah, I think it's fine. We do not have good names for such nodes. Best regards, Krzysztof
On 2022/12/02 21:08, Krzysztof Kozlowski wrote: > On 01/12/2022 10:30, Kunihiko Hayashi wrote: >> Hi Krzysztof, >> >> On 2022/11/29 19:35, Kunihiko Hayashi wrote: >>> Add DT binding schema for components belonging to the platform-specific >>> AHCI glue layer implemented in UniPhier SoCs. >>> >>> This AHCI glue layer works as a sideband logic for the host controller, >>> including core reset, PHYs, and some signals to the controller. >>> >>> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> >> >> (snip) >> >>> +examples: >>> + - | >>> + sata-controller@65700000 { >>> + compatible = "socionext,uniphier-pxs3-ahci-glue", "simple-mfd"; >>> + reg = <0x65b00000 0x400>; >>> + #address-cells = <1>; >>> + #size-cells = <1>; >>> + ranges = <0 0x65700000 0x100>; >> >> In PATCH 7/8, you suggested that the node name of "USB glue layer" should >> changes to the generic node name "usb@...". >> >> However, in case of this "AHCI glue layer", I can't change >> "sata-controller" >> to the generic node name "sata@...", because ata/sata-common.yaml has >> pattern >> "^sata(@.*)?$", and the changed node matches this pattern unintentionally. >> >> This layer isn't a sata host controller, so it's hard to give a generic >> name >> to this node. I'd like you opinion. > > Yeah, I think it's fine. We do not have good names for such nodes. OK, I leave the name for this node. Thank you, --- Best Regards Kunihiko Hayashi
diff --git a/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-ahci-glue.yaml b/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-ahci-glue.yaml new file mode 100644 index 000000000000..bf37be8a778d --- /dev/null +++ b/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-ahci-glue.yaml @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/socionext/socionext,uniphier-ahci-glue.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Socionext UniPhier SoC AHCI glue layer + +maintainers: + - Kunihiko Hayashi <hayashi.kunihiko@socionext.com> + +description: |+ + AHCI glue layer implemented on Socionext UniPhier SoCs is a sideband + logic handling signals to AHCI host controller inside AHCI component. + +properties: + compatible: + items: + - enum: + - socionext,uniphier-pro4-ahci-glue + - socionext,uniphier-pxs2-ahci-glue + - socionext,uniphier-pxs3-ahci-glue + - const: simple-mfd + + reg: + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 1 + + ranges: true + +patternProperties: + "^reset-controller@[0-9a-f]+$": + $ref: /schemas/reset/socionext,uniphier-glue-reset.yaml# + + "phy@[0-9a-f]+$": + $ref: /schemas/phy/socionext,uniphier-ahci-phy.yaml# + +required: + - compatible + - reg + +additionalProperties: + type: object + +examples: + - | + sata-controller@65700000 { + compatible = "socionext,uniphier-pxs3-ahci-glue", "simple-mfd"; + reg = <0x65b00000 0x400>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x65700000 0x100>; + + reset-controller@0 { + compatible = "socionext,uniphier-pxs3-ahci-reset"; + reg = <0x0 0x4>; + clock-names = "link"; + clocks = <&sys_clk 28>; + reset-names = "link"; + resets = <&sys_rst 28>; + #reset-cells = <1>; + }; + + phy@10 { + compatible = "socionext,uniphier-pxs3-ahci-phy"; + reg = <0x10 0x10>; + clock-names = "link", "phy"; + clocks = <&sys_clk 28>, <&sys_clk 30>; + reset-names = "link", "phy"; + resets = <&sys_rst 28>, <&sys_rst 30>; + #phy-cells = <0>; + }; + };
Add DT binding schema for components belonging to the platform-specific AHCI glue layer implemented in UniPhier SoCs. This AHCI glue layer works as a sideband logic for the host controller, including core reset, PHYs, and some signals to the controller. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> --- .../socionext,uniphier-ahci-glue.yaml | 78 +++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-ahci-glue.yaml