clk: renesas: cpg-mssr: Add support for R-Car M3-N

Initial support for R-Car M3-N (r8a77965), including core and module
clocks.

Based on Table 8.2d of "R-Car Series, 3rd Generation User's Manual:
Hardware (Rev. 0.80, Oct 31, 2017)".
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt

@@ -22,6 +22,7 @@ Required Properties:
       - "renesas,r8a7794-cpg-mssr" for the r8a7794 SoC (R-Car E2)
       - "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC (R-Car H3)
       - "renesas,r8a7796-cpg-mssr" for the r8a7796 SoC (R-Car M3-W)
+      - "renesas,r8a77965-cpg-mssr" for the r8a77965 SoC (R-Car M3-N)
       - "renesas,r8a77970-cpg-mssr" for the r8a77970 SoC (R-Car V3M)
       - "renesas,r8a77980-cpg-mssr" for the r8a77980 SoC (R-Car V3H)
       - "renesas,r8a77995-cpg-mssr" for the r8a77995 SoC (R-Car D3)
@@ -33,8 +34,8 @@ Required Properties:
     clock-names
   - clock-names: List of external parent clock names. Valid names are:
       - "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794,
-		 r8a7795, r8a7796, r8a77970, r8a77980, r8a77995)
-      - "extalr" (r8a7795, r8a7796, r8a77970, r8a77980)
+		 r8a7795, r8a7796, r8a77965, r8a77970, r8a77980, r8a77995)
+      - "extalr" (r8a7795, r8a7796, r8a77965, r8a77970, r8a77980)
       - "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794)
 
   - #clock-cells: Must be 2

drivers/clk/renesas/Kconfig

@@ -15,6 +15,7 @@ config CLK_RENESAS
 	select CLK_R8A7794 if ARCH_R8A7794
 	select CLK_R8A7795 if ARCH_R8A7795
 	select CLK_R8A7796 if ARCH_R8A7796
+	select CLK_R8A77965 if ARCH_R8A77965
 	select CLK_R8A77970 if ARCH_R8A77970
 	select CLK_R8A77980 if ARCH_R8A77980
 	select CLK_R8A77995 if ARCH_R8A77995
@@ -98,6 +99,10 @@ config CLK_R8A7796
 	bool "R-Car M3-W clock support" if COMPILE_TEST
 	select CLK_RCAR_GEN3_CPG
 
+config CLK_R8A77965
+	bool "R-Car M3-N clock support" if COMPILE_TEST
+	select CLK_RCAR_GEN3_CPG
+
 config CLK_R8A77970
 	bool "R-Car V3M clock support" if COMPILE_TEST
 	select CLK_RCAR_GEN3_CPG

drivers/clk/renesas/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_CLK_R8A7792)		+= r8a7792-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7794)		+= r8a7794-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7795)		+= r8a7795-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7796)		+= r8a7796-cpg-mssr.o
+obj-$(CONFIG_CLK_R8A77965)		+= r8a77965-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A77970)		+= r8a77970-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A77980)		+= r8a77980-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A77995)		+= r8a77995-cpg-mssr.o

drivers/clk/renesas/renesas-cpg-mssr.c

@@ -693,6 +693,12 @@ static const struct of_device_id cpg_mssr_match[] = {
 		.data = &r8a7796_cpg_mssr_info,
 	},
 #endif
+#ifdef CONFIG_CLK_R8A77965
+	{
+		.compatible = "renesas,r8a77965-cpg-mssr",
+		.data = &r8a77965_cpg_mssr_info,
+	},
+#endif
 #ifdef CONFIG_CLK_R8A77970
 	{
 		.compatible = "renesas,r8a77970-cpg-mssr",

drivers/clk/renesas/renesas-cpg-mssr.h

@@ -139,6 +139,7 @@ extern const struct cpg_mssr_info r8a7792_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a7794_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a7795_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a7796_cpg_mssr_info;
+extern const struct cpg_mssr_info r8a77965_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a77970_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a77980_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a77995_cpg_mssr_info;

include/dt-bindings/clock/r8a77965-cpg-mssr.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 Jacopo Mondi <jacopo+renesas@jmondi.org>
+ */
+#ifndef __DT_BINDINGS_CLOCK_R8A77965_CPG_MSSR_H__
+#define __DT_BINDINGS_CLOCK_R8A77965_CPG_MSSR_H__
+
+#include <dt-bindings/clock/renesas-cpg-mssr.h>
+
+/* r8a77965 CPG Core Clocks */
+#define R8A77965_CLK_Z			0
+#define R8A77965_CLK_ZR			1
+#define R8A77965_CLK_ZG			2
+#define R8A77965_CLK_ZTR		3
+#define R8A77965_CLK_ZTRD2		4
+#define R8A77965_CLK_ZT			5
+#define R8A77965_CLK_ZX			6
+#define R8A77965_CLK_S0D1		7
+#define R8A77965_CLK_S0D2		8
+#define R8A77965_CLK_S0D3		9
+#define R8A77965_CLK_S0D4		10
+#define R8A77965_CLK_S0D6		11
+#define R8A77965_CLK_S0D8		12
+#define R8A77965_CLK_S0D12		13
+#define R8A77965_CLK_S1D1		14
+#define R8A77965_CLK_S1D2		15
+#define R8A77965_CLK_S1D4		16
+#define R8A77965_CLK_S2D1		17
+#define R8A77965_CLK_S2D2		18
+#define R8A77965_CLK_S2D4		19
+#define R8A77965_CLK_S3D1		20
+#define R8A77965_CLK_S3D2		21
+#define R8A77965_CLK_S3D4		22
+#define R8A77965_CLK_LB			23
+#define R8A77965_CLK_CL			24
+#define R8A77965_CLK_ZB3		25
+#define R8A77965_CLK_ZB3D2		26
+#define R8A77965_CLK_CR			27
+#define R8A77965_CLK_CRD2		28
+#define R8A77965_CLK_SD0H		29
+#define R8A77965_CLK_SD0		30
+#define R8A77965_CLK_SD1H		31
+#define R8A77965_CLK_SD1		32
+#define R8A77965_CLK_SD2H		33
+#define R8A77965_CLK_SD2		34
+#define R8A77965_CLK_SD3H		35
+#define R8A77965_CLK_SD3		36
+#define R8A77965_CLK_SSP2		37
+#define R8A77965_CLK_SSP1		38
+#define R8A77965_CLK_SSPRS		39
+#define R8A77965_CLK_RPC		40
+#define R8A77965_CLK_RPCD2		41
+#define R8A77965_CLK_MSO		42
+#define R8A77965_CLK_CANFD		43
+#define R8A77965_CLK_HDMI		44
+#define R8A77965_CLK_CSI0		45
+#define R8A77965_CLK_CP			46
+#define R8A77965_CLK_CPEX		47
+#define R8A77965_CLK_R			48
+#define R8A77965_CLK_OSC		49
+
+#endif /* __DT_BINDINGS_CLOCK_R8A77965_CPG_MSSR_H__ */