Merge branch 'clk-shmobile-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

3 files changed, 147 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
new file mode 100644
index 000000000000..59297d34b208
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
@@ -0,0 +1,69 @@
+* Renesas Clock Pulse Generator / Module Standby and Software Reset
+
+On Renesas ARM SoCs (SH/R-Mobile, R-Car, RZ), the CPG (Clock Pulse Generator)
+and MSSR (Module Standby and Software Reset) blocks are intimately connected,
+and share the same register block.
+
+They provide the following functionalities:
+  - The CPG block generates various core clocks,
+  - The MSSR block provides two functions:
+      1. Module Standby, providing a Clock Domain to control the clock supply
+	 to individual SoC devices,
+      2. Reset Control, to perform a software reset of individual SoC devices.
+
+Required Properties:
+  - compatible: Must be one of:
+      - "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC
+
+  - reg: Base address and length of the memory resource used by the CPG/MSSR
+    block
+
+  - clocks: References to external parent clocks, one entry for each entry in
+    clock-names
+  - clock-names: List of external parent clock names. Valid names are:
+      - "extal" (r8a7795)
+      - "extalr" (r8a7795)
+
+  - #clock-cells: Must be 2
+      - For CPG core clocks, the two clock specifier cells must be "CPG_CORE"
+	and a core clock reference, as defined in
+	<dt-bindings/clock/*-cpg-mssr.h>.
+      - For module clocks, the two clock specifier cells must be "CPG_MOD" and
+	a module number, as defined in the datasheet.
+
+  - #power-domain-cells: Must be 0
+      - SoC devices that are part of the CPG/MSSR Clock Domain and can be
+	power-managed through Module Standby should refer to the CPG device
+	node in their "power-domains" property, as documented by the generic PM
+	Domain bindings in
+	Documentation/devicetree/bindings/power/power_domain.txt.
+
+
+Examples
+--------
+
+  - CPG device node:
+
+	cpg: clock-controller@e6150000 {
+		compatible = "renesas,r8a7795-cpg-mssr";
+		reg = <0 0xe6150000 0 0x1000>;
+		clocks = <&extal_clk>, <&extalr_clk>;
+		clock-names = "extal", "extalr";
+		#clock-cells = <2>;
+		#power-domain-cells = <0>;
+	};
+
+
+  - CPG/MSSR Clock Domain member device node:
+
+	scif2: serial@e6e88000 {
+		compatible = "renesas,scif-r8a7795", "renesas,scif";
+		reg = <0 0xe6e88000 0 64>;
+		interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 310>;
+		clock-names = "sci_ick";
+		dmas = <&dmac1 0x13>, <&dmac1 0x12>;
+		dma-names = "tx", "rx";
+		power-domains = <&cpg>;
+		status = "disabled";
+	};
diff --git a/include/dt-bindings/clock/r8a7795-cpg-mssr.h b/include/dt-bindings/clock/r8a7795-cpg-mssr.h
new file mode 100644
index 000000000000..e864aae0a256
--- /dev/null
+++ b/include/dt-bindings/clock/r8a7795-cpg-mssr.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2015 Renesas Electronics Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __DT_BINDINGS_CLOCK_R8A7795_CPG_MSSR_H__
+#define __DT_BINDINGS_CLOCK_R8A7795_CPG_MSSR_H__
+
+#include <dt-bindings/clock/renesas-cpg-mssr.h>
+
+/* r8a7795 CPG Core Clocks */
+#define R8A7795_CLK_Z			0
+#define R8A7795_CLK_Z2			1
+#define R8A7795_CLK_ZR			2
+#define R8A7795_CLK_ZG			3
+#define R8A7795_CLK_ZTR			4
+#define R8A7795_CLK_ZTRD2		5
+#define R8A7795_CLK_ZT			6
+#define R8A7795_CLK_ZX			7
+#define R8A7795_CLK_S0D1		8
+#define R8A7795_CLK_S0D4		9
+#define R8A7795_CLK_S1D1		10
+#define R8A7795_CLK_S1D2		11
+#define R8A7795_CLK_S1D4		12
+#define R8A7795_CLK_S2D1		13
+#define R8A7795_CLK_S2D2		14
+#define R8A7795_CLK_S2D4		15
+#define R8A7795_CLK_S3D1		16
+#define R8A7795_CLK_S3D2		17
+#define R8A7795_CLK_S3D4		18
+#define R8A7795_CLK_LB			19
+#define R8A7795_CLK_CL			20
+#define R8A7795_CLK_ZB3			21
+#define R8A7795_CLK_ZB3D2		22
+#define R8A7795_CLK_CR			23
+#define R8A7795_CLK_CRD2		24
+#define R8A7795_CLK_SD0H		25
+#define R8A7795_CLK_SD0			26
+#define R8A7795_CLK_SD1H		27
+#define R8A7795_CLK_SD1			28
+#define R8A7795_CLK_SD2H		29
+#define R8A7795_CLK_SD2			30
+#define R8A7795_CLK_SD3H		31
+#define R8A7795_CLK_SD3			32
+#define R8A7795_CLK_SSP2		33
+#define R8A7795_CLK_SSP1		34
+#define R8A7795_CLK_SSPRS		35
+#define R8A7795_CLK_RPC			36
+#define R8A7795_CLK_RPCD2		37
+#define R8A7795_CLK_MSO			38
+#define R8A7795_CLK_CANFD		39
+#define R8A7795_CLK_HDMI		40
+#define R8A7795_CLK_CSI0		41
+#define R8A7795_CLK_CSIREF		42
+#define R8A7795_CLK_CP			43
+#define R8A7795_CLK_CPEX		44
+#define R8A7795_CLK_R			45
+#define R8A7795_CLK_OSC			46
+
+#endif /* __DT_BINDINGS_CLOCK_R8A7795_CPG_MSSR_H__ */
diff --git a/include/dt-bindings/clock/renesas-cpg-mssr.h b/include/dt-bindings/clock/renesas-cpg-mssr.h
new file mode 100644
index 000000000000..569a3cc33ffb
--- /dev/null
+++ b/include/dt-bindings/clock/renesas-cpg-mssr.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2015 Renesas Electronics Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __DT_BINDINGS_CLOCK_RENESAS_CPG_MSSR_H__
+#define __DT_BINDINGS_CLOCK_RENESAS_CPG_MSSR_H__
+
+#define CPG_CORE			0	/* Core Clock */
+#define CPG_MOD				1	/* Module Clock */
+
+#endif /* __DT_BINDINGS_CLOCK_RENESAS_CPG_MSSR_H__ */