Convert txt bindings of Rockchip EMMC PHY to dtschema to allow
for validation.

Signed-off-by: Shresth Prasad <shresthprasad7@gmail.com>
---
Tested against `rockchip/rk3399-firefly.dtb`, `rockchip/rk3399-orangepi.dtb`
and `rockchip/rk3399-pinebook-pro.dtb`.

 .../bindings/phy/rockchip,emmc-phy.yaml       | 78 +++++++++++++++++++
 .../bindings/phy/rockchip-emmc-phy.txt        | 43 ----------
 2 files changed, 78 insertions(+), 43 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/phy/rockchip,emmc-phy.yaml
 delete mode 100644 Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt

diff --git a/Documentation/devicetree/bindings/phy/rockchip,emmc-phy.yaml b/Documentation/devicetree/bindings/phy/rockchip,emmc-phy.yaml
new file mode 100644
index 000000000000..bd8485c77bfe
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/rockchip,emmc-phy.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/rockchip,emmc-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip EMMC PHY
+
+maintainers:
+  - Shresth Prasad <shresthprasad7@gmail.com>
+
+properties:
+  "#phy-cells":
+    const: 0
+
+  compatible:
+    const: rockchip,rk3399-emmc-phy
+
+  reg:
+    description:
+      PHY register address offset and length in "general register files"
+    maxItems: 1
+
+  clock-names:
+    description: |
+      Although this is not a required property (because most boards can get
+      basic functionality without having access to it), it is strongly
+      suggested.
+    const: emmcclk
+
+  clocks:
+    description:
+      Should have a phandle to the card clock exported by the SDHCI driver.
+    maxItems: 1
+
+  drive-impedance-ohm:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Specifies the drive impedance in Ohm.
+    enum: [33, 40, 50, 66, 100]
+    default: 50
+
+  rockchip,enable-strobe-pulldown:
+    type: boolean
+    description: |
+      Enable internal pull-down for the strobe
+      line.  If not set, pull-down is not used.
+
+  rockchip,output-tapdelay-select:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Specifies the phyctrl_otapdlysec register.
+    default: 0x4
+    maximum: 0xf
+
+required:
+  - "#phy-cells"
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    grf {
+      compatible = "rockchip,rk3399-grf", "syscon", "simple-mfd";
+      #address-cells = <1>;
+      #size-cells = <1>;
+
+      emmcphy: phy@f780 {
+        #phy-cells = <0>;
+        compatible = "rockchip,rk3399-emmc-phy";
+        reg = <0xf780 0x20>;
+        clocks = <&sdhci>;
+        clock-names = "emmcclk";
+        drive-impedance-ohm = <50>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
deleted file mode 100644
index 57d28c0d5696..000000000000
--- a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-Rockchip EMMC PHY
------------------------
-
-Required properties:
- - compatible: rockchip,rk3399-emmc-phy
- - #phy-cells: must be 0
- - reg: PHY register address offset and length in "general
-   register files"
-
-Optional properties:
- - clock-names: Should contain "emmcclk".  Although this is listed as optional
-		(because most boards can get basic functionality without having
-		access to it), it is strongly suggested.
-		See ../clock/clock-bindings.txt for details.
- - clocks: Should have a phandle to the card clock exported by the SDHCI driver.
- - drive-impedance-ohm: Specifies the drive impedance in Ohm.
-                        Possible values are 33, 40, 50, 66 and 100.
-                        If not set, the default value of 50 will be applied.
- - rockchip,enable-strobe-pulldown: Enable internal pull-down for the strobe
-                                    line.  If not set, pull-down is not used.
- - rockchip,output-tapdelay-select: Specifies the phyctrl_otapdlysec register.
-                                    If not set, the register defaults to 0x4.
-                                    Maximum value 0xf.
-
-Example:
-
-
-grf: syscon@ff770000 {
-	compatible = "rockchip,rk3399-grf", "syscon", "simple-mfd";
-	#address-cells = <1>;
-	#size-cells = <1>;
-
-...
-
-	emmcphy: phy@f780 {
-		compatible = "rockchip,rk3399-emmc-phy";
-		reg = <0xf780 0x20>;
-		clocks = <&sdhci>;
-		clock-names = "emmcclk";
-		drive-impedance-ohm = <50>;
-		#phy-cells = <0>;
-	};
-};
-- 
2.45.2

Hi Shresth,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on linus/master v6.10-rc2 next-20240606]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Shresth-Prasad/dt-bindings-phy-rockchip-emmc-phy-Convert-to-dtschema/20240607-024538
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20240606184135.11065-2-shresthprasad7%40gmail.com
patch subject: [PATCH] dt-bindings: phy: rockchip-emmc-phy: Convert to dtschema
reproduce: (https://download.01.org/0day-ci/archive/20240607/202406070419.TJxm1rXC-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406070419.TJxm1rXC-lkp@intel.com/

All warnings (new ones prefixed by >>):

   Warning: Documentation/devicetree/bindings/power/wakeup-source.txt references a file that doesn't exist: Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
   Warning: Documentation/devicetree/bindings/regulator/siliconmitus,sm5703-regulator.yaml references a file that doesn't exist: Documentation/devicetree/bindings/mfd/siliconmitus,sm5703.yaml
>> Warning: Documentation/devicetree/bindings/soc/rockchip/grf.yaml references a file that doesn't exist: Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
   Warning: MAINTAINERS references a file that doesn't exist: Documentation/devicetree/bindings/reserved-memory/qcom
   Warning: MAINTAINERS references a file that doesn't exist: Documentation/devicetree/bindings/display/exynos/
   Using alabaster theme

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

On Fri, 07 Jun 2024 00:11:36 +0530, Shresth Prasad wrote:
> Convert txt bindings of Rockchip EMMC PHY to dtschema to allow
> for validation.
> 
> Signed-off-by: Shresth Prasad <shresthprasad7@gmail.com>
> ---
> Tested against `rockchip/rk3399-firefly.dtb`, `rockchip/rk3399-orangepi.dtb`
> and `rockchip/rk3399-pinebook-pro.dtb`.
> 
>  .../bindings/phy/rockchip,emmc-phy.yaml       | 78 +++++++++++++++++++
>  .../bindings/phy/rockchip-emmc-phy.txt        | 43 ----------
>  2 files changed, 78 insertions(+), 43 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/phy/rockchip,emmc-phy.yaml
>  delete mode 100644 Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/phy/rockchip,emmc-phy.example.dtb: grf: 'reg' is a required property
	from schema $id: http://devicetree.org/schemas/soc/rockchip/grf.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/phy/rockchip,emmc-phy.example.dtb: grf: 'reg' is a required property
	from schema $id: http://devicetree.org/schemas/mfd/syscon.yaml#

doc reference errors (make refcheckdocs):
Warning: Documentation/devicetree/bindings/soc/rockchip/grf.yaml references a file that doesn't exist: Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
Documentation/devicetree/bindings/soc/rockchip/grf.yaml: Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240606184135.11065-2-shresthprasad7@gmail.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.