linux-kernel - [PATCH 2/6] dt-bindings: clk: mstar msc313 mpll binding description

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Date:   Sat, 14 Nov 2020 22:50:40 +0900
From:   Daniel Palmer <daniel@...f.com>
To:     linux-clk@...r.kernel.org, devicetree@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        w@....eu, Daniel Palmer <daniel@...f.com>
Subject: [PATCH 2/6] dt-bindings: clk: mstar msc313 mpll binding description

Add a binding description for the MStar/SigmaStar MPLL clock block.

Signed-off-by: Daniel Palmer <daniel@...f.com>
---
 .../bindings/clock/mstar,msc313-mpll.yaml     | 58 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 59 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/mstar,msc313-mpll.yaml

diff --git a/Documentation/devicetree/bindings/clock/mstar,msc313-mpll.yaml b/Documentation/devicetree/bindings/clock/mstar,msc313-mpll.yaml
new file mode 100644
index 000000000000..9ddc1163b31b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mstar,msc313-mpll.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mstar,msc313-mpll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MStar/Sigmastar MSC313 MPLL
+
+maintainers:
+  - Daniel Palmer <daniel@...ngy.jp>
+
+description: |
+  The MStar/SigmaStar MSC313 and later ARMv7 chips have an MPLL block that
+  takes the external xtal input and multiplies it to create a high
+  frequency clock and divides that down into a number of clocks that
+  peripherals use.
+
+properties:
+  compatible:
+    const: mstar,msc313-mpll
+
+  "#clock-cells":
+    const: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-output-names:
+    minItems: 8
+    maxItems: 8
+    description: |
+      This should provide a name for the internal PLL clock and then
+      a name for each of the divided outputs.
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - "#clock-cells"
+  - clocks
+  - clock-output-names
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    mpll@...000 {
+        compatible = "mstar,msc313-mpll";
+        reg = <0x206000 0x200>;
+        #clock-cells = <1>;
+        clocks = <&xtal>;
+        clock-output-names = "mpll", "mpll_div_2",
+                             "mpll_div_3", "mpll_div_4",
+                             "mpll_div_5", "mpll_div_6",
+                             "mpll_div_7", "mpll_div_10";
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 1e874fda810e..d1c98a6f9f24 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2131,6 +2131,7 @@ L:	linux-arm-kernel@...ts.infradead.org (moderated for non-subscribers)
 S:	Maintained
 W:	http://linux-chenxing.org/
 F:	Documentation/devicetree/bindings/arm/mstar/*
+F:	Documentation/devicetree/bindings/clock/mstar,msc313-mpll.yaml
 F:	Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
 F:	arch/arm/boot/dts/mstar-*
 F:	arch/arm/mach-mstar/
-- 
2.29.2