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Message-Id: <20230620090811.721-2-zhuyinbo@loongson.cn>
Date: Tue, 20 Jun 2023 17:08:10 +0800
From: Yinbo Zhu <zhuyinbo@...ngson.cn>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Arnd Bergmann <arnd@...db.de>, linux-pm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Liu Yun <liuyun@...ngson.cn>
Cc: Jianmin Lv <lvjianmin@...ngson.cn>, wanghongliang@...ngson.cn,
Liu Peibao <liupeibao@...ngson.cn>,
loongson-kernel@...ts.loongnix.cn,
Yinbo Zhu <zhuyinbo@...ngson.cn>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v4 1/2] soc: dt-bindings: add loongson-2 pm
Add the Loongson-2 SoC Power Management Controller binding with DT
schema format using json-schema.
Signed-off-by: Yinbo Zhu <zhuyinbo@...ngson.cn>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
.../soc/loongson/loongson,ls2k-pmc.yaml | 52 +++++++++++++++++++
MAINTAINERS | 6 +++
2 files changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
diff --git a/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
new file mode 100644
index 000000000000..3c3af6d15eb2
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/loongson/loongson,ls2k-pmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson-2 Power Manager controller
+
+maintainers:
+ - Yinbo Zhu <zhuyinbo@...ngson.cn>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - loongson,ls2k1000-pmc
+ - loongson,ls2k0500-pmc
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ loongson,suspend-address:
+ $ref: /schemas/types.yaml#/definitions/uint64
+ description:
+ The "loongson,suspend-address" is a deep sleep state (Suspend To
+ RAM) firmware entry address which was jumped from kernel and it's
+ value was dependent on specific platform firmware code. In
+ addition, the PM need according to it to indicate that current
+ SoC whether support Suspend To RAM.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ power-management@...27000 {
+ compatible = "loongson,ls2k1000-pmc", "syscon";
+ reg = <0x1fe27000 0x58>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ loongson,suspend-address = <0x0 0x1c000500>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 7a91f14cad2e..bcd05f1fa5c1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12190,6 +12190,12 @@ S: Maintained
F: Documentation/devicetree/bindings/hwinfo/loongson,ls2k-chipid.yaml
F: drivers/soc/loongson/loongson2_guts.c
+LOONGSON-2 SOC SERIES PM DRIVER
+M: Yinbo Zhu <zhuyinbo@...ngson.cn>
+L: linux-pm@...r.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/soc/loongson/loongson,ls2k-pmc.yaml
+
LOONGSON-2 SOC SERIES PINCTRL DRIVER
M: zhanghongchen <zhanghongchen@...ngson.cn>
M: Yinbo Zhu <zhuyinbo@...ngson.cn>
--
2.20.1
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