[PATCH] dt-bindings: arm: sunplus: Add bindings for Sunplus SP7021 SoC boards

[Qin Jian]

This introduces bindings for boards based Sunplus SP7021 SoC.

This patch is separated from the patch series:
Add Sunplus SP7021 SoC Support. [1]
To simply thing, I extract it from the original and resend this patch.

Previous changelog: [1]

[1] https://lore.kernel.org/lkml/cover.1649659095.git.qinjian@xxxxxxxxxxx/

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Qin Jian <qinjian@xxxxxxxxxxx>
---
 .../bindings/arm/sunplus,sp7021.yaml          | 28 +++++++++++++++++++
 MAINTAINERS                                   |  7 +++++
 2 files changed, 35 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml

diff --git a/Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml b/Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
new file mode 100644
index 000000000..ef48fb270
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/sunplus,sp7021.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SP7021 Boards Device Tree Bindings
+
+maintainers:
+  - qinjian <qinjian@xxxxxxxxxxx>
+
+description: |
+  ARM platforms using Sunplus SP7021, an ARM Cortex A7 (4-cores) based SoC.
+  Wiki: https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    items:
+      - enum:
+          - sunplus,sp7021-achip
+      - const: sunplus,sp7021
+
+additionalProperties: true
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index cd0f68d4a..8b5e2e639 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2738,6 +2738,13 @@ F:	drivers/clocksource/armv7m_systick.c
 N:	stm32
 N:	stm
 
+ARM/SUNPLUS SP7021 SOC SUPPORT
+M:	Qin Jian <qinjian@xxxxxxxxxxx>
+L:	linux-arm-kernel@xxxxxxxxxxxxxxxxxxx (moderated for mon-subscribers)
+S:	Maintained
+W:	https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview
+F:	Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
+
 ARM/Synaptics SoC support
 M:	Jisheng Zhang <jszhang@xxxxxxxxxx>
 M:	Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
-- 
2.33.1