dt-bindings: i2c: i2c-st: convert to DT schema

Convert i2c-st.txt into st,sti-i2c.yaml for the i2c-st driver.

Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

Documentation/devicetree/bindings/i2c/st,sti-i2c.yaml

@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/st,sti-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: I2C controller embedded in STMicroelectronics STi platform
+
+maintainers:
+  - Patrice Chotard <patrice.chotard@foss.st.com>
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - st,comms-ssc-i2c
+      - st,comms-ssc4-i2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    maxItems: 1
+
+  clock-frequency:
+    enum: [ 100000, 400000 ]
+    default: 100000
+
+  st,i2c-min-scl-pulse-width-us:
+    description:
+      The minimum valid SCL pulse width that is allowed through the
+      deglitch circuit. In units of us.
+
+  st,i2c-min-sda-pulse-width-us:
+    description:
+      The minimum valid SDA pulse width that is allowed through the
+      deglitch circuit. In units of us.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/stih407-clks.h>
+    i2c@fed40000 {
+        compatible = "st,comms-ssc4-i2c";
+        reg = <0xfed40000 0x110>;
+        interrupts =  <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clk_s_a0_ls CLK_ICN_REG>;
+        clock-names = "ssc";
+        clock-frequency = <400000>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&pinctrl_i2c0_default>;
+        st,i2c-min-scl-pulse-width-us = <0>;
+        st,i2c-min-sda-pulse-width-us = <5>;
+    };

MAINTAINERS

@@ -2925,7 +2925,7 @@ M:	Patrice Chotard <patrice.chotard@foss.st.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 W:	http://www.stlinux.com
-F:	Documentation/devicetree/bindings/i2c/i2c-st.txt
+F:	Documentation/devicetree/bindings/i2c/st,sti-i2c.yaml
 F:	arch/arm/boot/dts/sti*
 F:	arch/arm/mach-sti/
 F:	drivers/ata/ahci_st.c