On Mon, May 10, 2021 at 11:32 AM Johan Jonker [off-list ref] wrote:

On 5/10/21 6:12 PM, Rob Herring wrote:

quoted

On Sat, May 08, 2021 at 02:37:41PM +0200, Johan Jonker wrote:

quoted

Current dts files with 'grf' nodes are manually verified.
In order to automate this process grf.txt has to be
converted to YAML.

Most compatibility strings are in use with "simple-mfd" added.

Add description already in use:
"rockchip,rv1108-pmugrf", "syscon"

Add new descriptions for:
"rockchip,rk3568-grf", "syscon", "simple-mfd"
"rockchip,rk3568-pmugrf", "syscon", "simple-mfd"

Signed-off-by: Johan Jonker <redacted>
---

Changed V3:
  remove select
  change unevaluatedProperties
  add separate schemas for each 'if' subset

Sorry, but by separate I meant different files. But you don't *have* to
do that.

quoted

Changed V2:
  add rockchip,rk3328-grf-gpio.yaml
  rename grf-gpio nodename
---
 .../devicetree/bindings/soc/rockchip/grf.txt       |  61 -----
 .../devicetree/bindings/soc/rockchip/grf.yaml      | 262 +++++++++++++++++++++
 2 files changed, 262 insertions(+), 61 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/soc/rockchip/grf.txt
 create mode 100644 Documentation/devicetree/bindings/soc/rockchip/grf.yaml

diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.txt b/Documentation/devicetree/bindings/soc/rockchip/grf.txt
deleted file mode 100644
index f96511aa3..000000000
--- a/Documentation/devicetree/bindings/soc/rockchip/grf.txt
+++ /dev/null

@@ -1,61 +0,0 @@
-* Rockchip General Register Files (GRF)
-
-The general register file will be used to do static set by software, which
-is composed of many registers for system control.
-
-From RK3368 SoCs, the GRF is divided into two sections,
-- GRF, used for general non-secure system,
-- SGRF, used for general secure system,
-- PMUGRF, used for always on system
-
-On RK3328 SoCs, the GRF adds a section for USB2PHYGRF,
-
-ON RK3308 SoC, the GRF is divided into four sections:
-- GRF, used for general non-secure system,
-- SGRF, used for general secure system,
-- DETECTGRF, used for audio codec system,
-- COREGRF, used for pvtm,
-
-Required Properties:
-
-- compatible: GRF should be one of the following:
-   - "rockchip,px30-grf", "syscon": for px30
-   - "rockchip,rk3036-grf", "syscon": for rk3036
-   - "rockchip,rk3066-grf", "syscon": for rk3066
-   - "rockchip,rk3188-grf", "syscon": for rk3188
-   - "rockchip,rk3228-grf", "syscon": for rk3228
-   - "rockchip,rk3288-grf", "syscon": for rk3288
-   - "rockchip,rk3308-grf", "syscon": for rk3308
-   - "rockchip,rk3328-grf", "syscon": for rk3328
-   - "rockchip,rk3368-grf", "syscon": for rk3368
-   - "rockchip,rk3399-grf", "syscon": for rk3399
-   - "rockchip,rv1108-grf", "syscon": for rv1108
-- compatible: DETECTGRF should be one of the following:
-   - "rockchip,rk3308-detect-grf", "syscon": for rk3308
-- compatilbe: COREGRF should be one of the following:
-   - "rockchip,rk3308-core-grf", "syscon": for rk3308
-- compatible: PMUGRF should be one of the following:
-   - "rockchip,px30-pmugrf", "syscon": for px30
-   - "rockchip,rk3368-pmugrf", "syscon": for rk3368
-   - "rockchip,rk3399-pmugrf", "syscon": for rk3399
-- compatible: SGRF should be one of the following:
-   - "rockchip,rk3288-sgrf", "syscon": for rk3288
-- compatible: USB2PHYGRF should be one of the following:
-   - "rockchip,px30-usb2phy-grf", "syscon": for px30
-   - "rockchip,rk3328-usb2phy-grf", "syscon": for rk3328
-- compatible: USBGRF should be one of the following:
-   - "rockchip,rv1108-usbgrf", "syscon": for rv1108
-- reg: physical base address of the controller and length of memory mapped
-  region.
-
-Example: GRF and PMUGRF of RK3399 SoCs
-
-    pmugrf: syscon@ff320000 {
-            compatible = "rockchip,rk3399-pmugrf", "syscon";
-            reg = <0x0 0xff320000 0x0 0x1000>;
-    };
-
-    grf: syscon@ff770000 {
-            compatible = "rockchip,rk3399-grf", "syscon";
-            reg = <0x0 0xff770000 0x0 0x10000>;
-    };

diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
new file mode 100644
index 000000000..264e2e5ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml

@@ -0,0 +1,262 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/rockchip/grf.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip General Register Files (GRF)
+
+maintainers:
+  - Heiko Stuebner <heiko@sntech.de>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - rockchip,rk3066-grf
+              - rockchip,rk3188-grf
+              - rockchip,rk3288-sgrf
+              - rockchip,rv1108-pmugrf
+              - rockchip,rv1108-usbgrf
+          - const: syscon
+      - items:
+          - enum:
+              - rockchip,px30-grf
+              - rockchip,px30-pmugrf
+              - rockchip,px30-usb2phy-grf
+              - rockchip,rk3036-grf
+              - rockchip,rk3228-grf
+              - rockchip,rk3288-grf
+              - rockchip,rk3308-core-grf
+              - rockchip,rk3308-detect-grf
+              - rockchip,rk3308-grf
+              - rockchip,rk3328-grf
+              - rockchip,rk3328-usb2phy-grf
+              - rockchip,rk3368-grf
+              - rockchip,rk3368-pmugrf
+              - rockchip,rk3399-grf
+              - rockchip,rk3399-pmugrf
+              - rockchip,rk3568-grf
+              - rockchip,rk3568-pmugrf
+              - rockchip,rv1108-grf
+          - const: syscon
+          - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false

Hi Rob,

I've tried without '$defs' and I can't get dt_binding_check error free with:
allOf:
  - if:
      [etc..]
  - if:
      [etc..]
That's why this construction.
Could you test with patch below.
Please advise.

There's a requirement that all the properties be defined at the top
level. If 'unevaluatedProperties' was actually implemented, we
wouldn't need that. So you need something like this:

diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml

b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
index 8a8943317544..8034458fb969 100644

--- a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
+++ b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml

@@ -46,11 +46,18 @@ properties:
   reg:
     maxItems: 1

+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
 required:
   - compatible
   - reg

-unevaluatedProperties: false
+additionalProperties:
+  type: object

 allOf:
   - if:

@@ -158,13 +165,6 @@ allOf:
               - rockchip,rv1108-grf

     then:
-      properties:
-        "#address-cells":
-          const: 1
-
-        "#size-cells":
-          const: 1
-
       required:
         - "#address-cells"
         - "#size-cells"

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