Subject: [PATCH v3 1/2] dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY

From: Ramuthevar Vadivel Murugan <[email protected]>

Add a YAML schema to use the host controller driver with the
eMMC PHY on Intel's Lightning Mountain SoC.

Signed-off-by: Ramuthevar Vadivel Murugan <[email protected]>
---
changes in v3:
- resolve 'make dt_binding_check' warnings

changes in v2:
As per Rob Herring review comments, the following updates
- change GPL-2.0 -> (GPL-2.0-only OR BSD-2-Clause)
- filename is the compatible string plus .yaml
- LGM: Lightning Mountain
- update maintainer
- add intel,syscon under property list
- keep one example instead of two
---
.../bindings/phy/intel,lgm-emmc-phy.yaml | 59 ++++++++++++++++++++++
1 file changed, 59 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
new file mode 100644
index 000000000000..9342e33d8b02
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel Lightning Mountain(LGM) eMMC PHY Device Tree Bindings
+
+maintainers:
+ - Ramuthevar Vadivel Murugan <[email protected]>
+
+properties:
+ "#phy-cells":
+ const: 0
+
+ compatible:
+ const: intel,lgm-emmc-phy
+
+ reg:
+ maxItems: 1
+
+ syscon:
+ items:
+ $ref: "/schemas/types.yaml#definitions/phandle"
+
+ clocks:
+ items:
+ - description: e-MMC phy module clock
+
+ clock-names:
+ items:
+ - const: emmcclk
+
+ resets:
+ maxItems: 1
+
+required:
+ - "#phy-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - ref
+
+additionalProperties: false
+
+examples:
+ - |
+ emmc_phy: emmc_phy {
+ compatible = "intel,lgm-emmc-phy";
+ reg = <0xe0020000 0x100>;
+ intel,syscon = <&sysconf>;
+ clocks = <&emmc>;
+ clock-names = "emmcclk";
+ #phy-cells = <0>;
+ };
+
+...
--
2.11.0


2019-08-21 13:38:54

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH v3 1/2] dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY

On Wed, Aug 21, 2019 at 5:11 AM Ramuthevar,Vadivel MuruganX
<[email protected]> wrote:
>
> From: Ramuthevar Vadivel Murugan <[email protected]>
>
> Add a YAML schema to use the host controller driver with the
> eMMC PHY on Intel's Lightning Mountain SoC.
>
> Signed-off-by: Ramuthevar Vadivel Murugan <[email protected]>
> ---
> changes in v3:
> - resolve 'make dt_binding_check' warnings
>
> changes in v2:
> As per Rob Herring review comments, the following updates
> - change GPL-2.0 -> (GPL-2.0-only OR BSD-2-Clause)
> - filename is the compatible string plus .yaml
> - LGM: Lightning Mountain
> - update maintainer
> - add intel,syscon under property list
> - keep one example instead of two
> ---
> .../bindings/phy/intel,lgm-emmc-phy.yaml | 59 ++++++++++++++++++++++
> 1 file changed, 59 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
>
> diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
> new file mode 100644
> index 000000000000..9342e33d8b02
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Intel Lightning Mountain(LGM) eMMC PHY Device Tree Bindings
> +
> +maintainers:
> + - Ramuthevar Vadivel Murugan <[email protected]>
> +
> +properties:
> + "#phy-cells":
> + const: 0
> +
> + compatible:
> + const: intel,lgm-emmc-phy
> +
> + reg:
> + maxItems: 1
> +
> + syscon:

intel,syscon like the example. You must have used 5.2 as on 5.3-rc the
example will fail validation.

> + items:

Drop items as there is only 1.

> + $ref: "/schemas/types.yaml#definitions/phandle"
> +
> + clocks:
> + items:
> + - description: e-MMC phy module clock
> +
> + clock-names:
> + items:
> + - const: emmcclk
> +
> + resets:
> + maxItems: 1
> +
> +required:
> + - "#phy-cells"
> + - compatible
> + - reg
> + - clocks
> + - clock-names
> + - resets
> + - ref

Not documented.

> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + emmc_phy: emmc_phy {
> + compatible = "intel,lgm-emmc-phy";
> + reg = <0xe0020000 0x100>;
> + intel,syscon = <&sysconf>;
> + clocks = <&emmc>;
> + clock-names = "emmcclk";
> + #phy-cells = <0>;
> + };
> +
> +...
> --
> 2.11.0
>

Subject: Re: [PATCH v3 1/2] dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY

Hi Rob,

On 21/8/2019 9:35 PM, Rob Herring wrote:
> On Wed, Aug 21, 2019 at 5:11 AM Ramuthevar,Vadivel MuruganX
> <[email protected]> wrote:
>> From: Ramuthevar Vadivel Murugan <[email protected]>
>>
>> Add a YAML schema to use the host controller driver with the
>> eMMC PHY on Intel's Lightning Mountain SoC.
>>
>> Signed-off-by: Ramuthevar Vadivel Murugan <[email protected]>
>> ---
>> changes in v3:
>> - resolve 'make dt_binding_check' warnings
>>
>> changes in v2:
>> As per Rob Herring review comments, the following updates
>> - change GPL-2.0 -> (GPL-2.0-only OR BSD-2-Clause)
>> - filename is the compatible string plus .yaml
>> - LGM: Lightning Mountain
>> - update maintainer
>> - add intel,syscon under property list
>> - keep one example instead of two
>> ---
>> .../bindings/phy/intel,lgm-emmc-phy.yaml | 59 ++++++++++++++++++++++
>> 1 file changed, 59 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
>> new file mode 100644
>> index 000000000000..9342e33d8b02
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
>> @@ -0,0 +1,59 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Intel Lightning Mountain(LGM) eMMC PHY Device Tree Bindings
>> +
>> +maintainers:
>> + - Ramuthevar Vadivel Murugan <[email protected]>
>> +
>> +properties:
>> + "#phy-cells":
>> + const: 0
>> +
>> + compatible:
>> + const: intel,lgm-emmc-phy
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + syscon:
> intel,syscon like the example. You must have used 5.2 as on 5.3-rc the
> example will fail validation.
Thanks for the review comments,  used 5.3 for validation, after
addressing the below comments
once again validate on both 5.2 and 5.3 as well.
>> + items:
> Drop items as there is only 1.
agreed
>> + $ref: "/schemas/types.yaml#definitions/phandle"
>> +
>> + clocks:
>> + items:
>> + - description: e-MMC phy module clock
>> +
>> + clock-names:
>> + items:
>> + - const: emmcclk
>> +
>> + resets:
>> + maxItems: 1
>> +
>> +required:
>> + - "#phy-cells"
>> + - compatible
>> + - reg
>> + - clocks
>> + - clock-names
>> + - resets
>> + - ref
> Not documented.

Agreed, will update

With Best Regards
Vadivel
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + emmc_phy: emmc_phy {
>> + compatible = "intel,lgm-emmc-phy";
>> + reg = <0xe0020000 0x100>;
>> + intel,syscon = <&sysconf>;
>> + clocks = <&emmc>;
>> + clock-names = "emmcclk";
>> + #phy-cells = <0>;
>> + };
>> +
>> +...
>> --
>> 2.11.0
>>