dt-bindings: i2c: Rewrite Nomadik I2C bindings in YAML

diff --git a/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt b/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt
deleted file mode 100644
index 72065b0ff680..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt
+++ /dev/null
@@ -1,23 +0,0 @@ 
-I2C for Nomadik based systems
-
-Required (non-standard) properties:
- - Nil
-
-Recommended (non-standard) properties:
- - clock-frequency : Maximum bus clock frequency for the device
-
-Optional (non-standard) properties:
- - Nil
-
-Example :
-
-i2c@80004000 {
-        compatible = "stericsson,db8500-i2c", "st,nomadik-i2c";
-        reg = <0x80004000 0x1000>;
-        interrupts = <0 21 0x4>;
-        #address-cells = <1>;
-        #size-cells = <0>;
-        v-i2c-supply = <&db8500_vape_reg>;
-
-        clock-frequency = <400000>;
-};
diff --git a/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
new file mode 100644
index 000000000000..eec502c57047
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
@@ -0,0 +1,113 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/st,nomadik-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ST Microelectronics Nomadik I2C Bindings
+
+description: The Nomadik I2C host controller began its life in the ST
+  Microelectronics STn8800 SoC, and was then inherited into STn8810 and
+  STn8815. It was part of the prototype STn8500 which then became ST-Ericsson
+  DB8500 after the merge of these two companies wireless divisions.
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - st,nomadik-i2c
+  required:
+    - compatible
+
+properties:
+  compatible:
+    oneOf:
+      # The variant found in STn8815
+      - items:
+          - const: st,nomadik-i2c
+          - const: arm,primecell
+      # The variant found in DB8500
+      - items:
+          - const: stericsson,db8500-i2c
+          - const: st,nomadik-i2c
+          - const: arm,primecell
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    oneOf:
+      # Clock name in STn8815
+      - items:
+          - const: mclk
+          - const: apb_pclk
+      # Clock name in DB8500
+      - items:
+          - const: i2cclk
+          - const: apb_pclk
+
+  resets:
+    maxItems: 1
+
+  clock-frequency:
+    minimum: 1
+    maximum: 400000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/reset/stericsson,db8500-prcc-reset.h>
+    #include <dt-bindings/arm/ux500_pm_domains.h>
+    i2c@80004000 {
+      compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
+      reg = <0x80004000 0x1000>;
+      interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+
+      #address-cells = <1>;
+      #size-cells = <0>;
+      v-i2c-supply = <&db8500_vape_reg>;
+
+      clock-frequency = <400000>;
+      clocks = <&prcc_kclk 3 3>, <&prcc_pclk 3 3>;
+      clock-names = "i2cclk", "apb_pclk";
+      power-domains = <&pm_domains DOMAIN_VAPE>;
+      resets = <&prcc_reset DB8500_PRCC_3 DB8500_PRCC_3_RESET_I2C0>;
+    };
+
+    i2c@101f8000 {
+      compatible = "st,nomadik-i2c", "arm,primecell";
+      reg = <0x101f8000 0x1000>;
+      interrupt-parent = <&vica>;
+      interrupts = <20>;
+      clock-frequency = <100000>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+      clocks = <&i2c0clk>, <&pclki2c0>;
+      clock-names = "mclk", "apb_pclk";
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index fd768d43e048..0d1816f26ccc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2398,7 +2398,7 @@  T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
 F:	Documentation/devicetree/bindings/arm/ste-*
 F:	Documentation/devicetree/bindings/arm/ux500.yaml
 F:	Documentation/devicetree/bindings/arm/ux500/
-F:	Documentation/devicetree/bindings/i2c/i2c-nomadik.txt
+F:	Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
 F:	arch/arm/boot/dts/ste-*
 F:	arch/arm/mach-nomadik/
 F:	arch/arm/mach-ux500/