[PATCH 2/2] dt-bindings: clock: ti,dra7-atl: convert to dt-schema

[Bhargav Joshi <j.bhargav.u@gmail.com>]

Convert the IP driver portion of the DRA7 ATL (Audio Tracking Logic)
binding from the freeform text binding to dt-schema. Together with
ti,dra7-atl-clock.yaml this fully replaces dra7-atl.txt.

ti,hwmods is marked deprecated as modern DTS uses ti,sysc target-module
wrappers and the property is absent from current dra7-l4.dtsi.

bws/aws maximum set to 15 per the 16 mux sources in
dt-bindings/clock/ti-dra7-atl.h.

Signed-off-by: Bhargav Joshi <j.bhargav.u@gmail.com>
---
 .../devicetree/bindings/clock/ti/dra7-atl.txt      | 56 -------------
 .../devicetree/bindings/clock/ti/ti,dra7-atl.yaml  | 98 ++++++++++++++++++++++
 2 files changed, 98 insertions(+), 56 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt b/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
deleted file mode 100644
index e3c05844ae86..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
+++ /dev/null
@@ -1,56 +0,0 @@
-Device Tree Clock bindings for ATL (Audio Tracking Logic) of DRA7 SoC.
-
-The ATL IP is used to generate clock to be used to synchronize baseband and
-audio codec. A single ATL IP provides four ATL clock instances sharing the same
-functional clock but can be configured to provide different clocks.
-ATL can maintain a clock averages to some desired frequency based on the bws/aws
-signals - can compensate the drift between the two ws signal.
-
-In order to provide the support for ATL and its output clocks (which can be used
-internally within the SoC or external components) two sets of bindings is needed:
-
-
-Binding for the IP driver:
-This binding is used to configure the IP driver which is going to handle the
-configuration of the IP for the ATL clock instances.
-
-Required properties:
-- compatible : shall be "ti,dra7-atl"
-- reg : base address for the ATL IP
-- ti,provided-clocks : List of phandles to the clocks associated with the ATL
-- clocks : link phandles to functional clock of ATL
-- clock-names : Shall be set to "fck"
-- ti,hwmods : Shall be set to "atl"
-
-Optional properties:
-Configuration of ATL instances:
-- atl{0/1/2/3} {
-	- bws : Baseband word select signal selection
-	- aws : Audio word select signal selection
-};
-
-For valid word select signals, see the dt-bindings/clock/ti-dra7-atl.h include
-file.
-
-Examples:
-
-/* binding for the IP */
-atl: atl@4843c000 {
-	compatible = "ti,dra7-atl";
-	reg = <0x4843c000 0x3ff>;
-	ti,hwmods = "atl";
-	ti,provided-clocks = <&atl_clkin0_ck>, <&atl_clkin1_ck>,
-				<&atl_clkin2_ck>, <&atl_clkin3_ck>;
-	clocks = <&atl_gfclk_mux>;
-	clock-names = "fck";
-};
-
-#include <dt-bindings/clock/ti-dra7-atl.h>
-
-&atl {
-
-	atl2 {
-		bws = <DRA7_ATL_WS_MCASP2_FSX>;
-		aws = <DRA7_ATL_WS_MCASP3_FSX>;
-	};
-};
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,dra7-atl.yaml b/Documentation/devicetree/bindings/clock/ti/ti,dra7-atl.yaml
new file mode 100644
index 000000000000..5460432219a5
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,dra7-atl.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,dra7-atl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DRA7 ATL (Audio Tracking Logic) Clock Controller
+
+maintainers:
+  - Peter Ujfalusi <peter.ujfalusi@ti.com>
+
+description:
+  The ATL IP is used to generate clock to be used to synchronize baseband and
+  audio codec. A single ATL IP provides four ATL clock instances sharing the
+  same functional clock but can be configured to provide different clocks.
+  ATL can maintain a clock averages to some desired frequency based on the
+  bws/aws signals - can compensate the drift between the two ws signal.
+
+  See also Documentation/devicetree/bindings/clock/ti/ti,dra7-atl-clock.yaml
+
+properties:
+  compatible:
+    const: ti,dra7-atl
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: fck
+
+  ti,provided-clocks:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    minItems: 4
+    maxItems: 4
+    description:
+      List of phandles to the clocks associated with the ATL.
+
+  ti,hwmods:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      Name of the hwmod associated with the ATL.
+    deprecated: true
+    const: atl
+
+patternProperties:
+  "^atl[0-3]$":
+    type: object
+    additionalProperties: false
+    description:
+      Configuration of ATL instances.
+
+    properties:
+      bws:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Baseband word select signal selection.
+        maximum: 15
+
+      aws:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Audio word select signal selection.
+        maximum: 15
+
+    required:
+      - bws
+      - aws
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - ti,provided-clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/ti-dra7-atl.h>
+
+    atl@4843c000 {
+        compatible = "ti,dra7-atl";
+        reg = <0x4843c000 0x3ff>;
+        clocks = <&atl_gfclk_mux>;
+        clock-names = "fck";
+        ti,provided-clocks = <&atl_clkin0_ck>, <&atl_clkin1_ck>,
+                             <&atl_clkin2_ck>, <&atl_clkin3_ck>;
+
+        atl2 {
+            bws = <DRA7_ATL_WS_MCASP2_FSX>;
+            aws = <DRA7_ATL_WS_MCASP3_FSX>;
+        };
+    };

-- 
2.55.0