Merge patch series "JH7110 PMU Support"

Walker Chen <walker.chen@starfivetech.com> says:

Add the PMU (Power Management Unit) controller driver for the
StarFive JH7110 SoC. In order to meet low power requirements, PMU is
designed for including multiple PM domains that can be used for power
gating of selected IP blocks for power saving by reduced leakage
current.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

Documentation/devicetree/bindings/power/starfive,jh7110-pmu.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/starfive,jh7110-pmu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Power Management Unit
+
+maintainers:
+  - Walker Chen <walker.chen@starfivetech.com>
+
+description: |
+  StarFive JH7110 SoC includes support for multiple power domains which can be
+  powered on/off by software based on different application scenes to save power.
+
+properties:
+  compatible:
+    enum:
+      - starfive,jh7110-pmu
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  "#power-domain-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - "#power-domain-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    pwrc: power-controller@17030000 {
+        compatible = "starfive,jh7110-pmu";
+        reg = <0x17030000 0x10000>;
+        interrupts = <111>;
+        #power-domain-cells = <1>;
+    };

MAINTAINERS

@@ -19905,6 +19905,19 @@ F:	Documentation/devicetree/bindings/reset/starfive,jh7100-reset.yaml
 F:	drivers/reset/reset-starfive-jh7100.c
 F:	include/dt-bindings/reset/starfive-jh7100.h
 
+STARFIVE SOC DRIVERS
+M:	Conor Dooley <conor@kernel.org>
+S:	Maintained
+T:	git https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux.git/
+F:	drivers/soc/starfive/
+
+STARFIVE JH71XX PMU CONTROLLER DRIVER
+M:	Walker Chen <walker.chen@starfivetech.com>
+S:	Supported
+F:	Documentation/devicetree/bindings/power/starfive*
+F:	drivers/soc/starfive/jh71xx_pmu.c
+F:	include/dt-bindings/power/starfive,jh7110-pmu.h
+
 STATIC BRANCH/CALL
 M:	Peter Zijlstra <peterz@infradead.org>
 M:	Josh Poimboeuf <jpoimboe@kernel.org>

drivers/soc/Kconfig

@@ -22,6 +22,7 @@ source "drivers/soc/renesas/Kconfig"
 source "drivers/soc/rockchip/Kconfig"
 source "drivers/soc/samsung/Kconfig"
 source "drivers/soc/sifive/Kconfig"
+source "drivers/soc/starfive/Kconfig"
 source "drivers/soc/sunxi/Kconfig"
 source "drivers/soc/tegra/Kconfig"
 source "drivers/soc/ti/Kconfig"

drivers/soc/Makefile

@@ -28,6 +28,7 @@ obj-y				+= renesas/
 obj-y				+= rockchip/
 obj-$(CONFIG_SOC_SAMSUNG)	+= samsung/
 obj-y				+= sifive/
+obj-$(CONFIG_SOC_STARFIVE)	+= starfive/
 obj-y				+= sunxi/
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra/
 obj-y				+= ti/

drivers/soc/starfive/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+
+config JH71XX_PMU
+	bool "Support PMU for StarFive JH71XX Soc"
+	depends on PM
+	depends on SOC_STARFIVE || COMPILE_TEST
+	default SOC_STARFIVE
+	select PM_GENERIC_DOMAINS
+	help
+	  Say 'y' here to enable support power domain support.
+	  In order to meet low power requirements, a Power Management Unit (PMU)
+	  is designed for controlling power resources in StarFive JH71XX SoCs.

drivers/soc/starfive/Makefile

+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_JH71XX_PMU)	+= jh71xx_pmu.o

include/dt-bindings/power/starfive,jh7110-pmu.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ * Author: Walker Chen <walker.chen@starfivetech.com>
+ */
+#ifndef __DT_BINDINGS_POWER_JH7110_POWER_H__
+#define __DT_BINDINGS_POWER_JH7110_POWER_H__
+
+#define JH7110_PD_SYSTOP	0
+#define JH7110_PD_CPU		1
+#define JH7110_PD_GPUA		2
+#define JH7110_PD_VDEC		3
+#define JH7110_PD_VOUT		4
+#define JH7110_PD_ISP		5
+#define JH7110_PD_VENC		6
+
+#endif