Merge tag 'renesas-rcar-sysc2-for-v4.7' into arm64-dt-pm-domain-for-v4.7

Second Round of Renesas ARM Based SoC R-Car SYSC Updates for v4.7

Introduce a DT-based driver for the R-Car System Controller, as found on
Renesas R-Car H1, R-Car Gen2, and R-Car Gen3 SoCs.

Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt

@@ -0,0 +1,48 @@
+DT bindings for the Renesas R-Car System Controller
+
+== System Controller Node ==
+
+The R-Car System Controller provides power management for the CPU cores and
+various coprocessors.
+
+Required properties:
+  - compatible: Must contain exactly one of the following:
+      - "renesas,r8a7779-sysc" (R-Car H1)
+      - "renesas,r8a7790-sysc" (R-Car H2)
+      - "renesas,r8a7791-sysc" (R-Car M2-W)
+      - "renesas,r8a7792-sysc" (R-Car V2H)
+      - "renesas,r8a7793-sysc" (R-Car M2-N)
+      - "renesas,r8a7794-sysc" (R-Car E2)
+      - "renesas,r8a7795-sysc" (R-Car H3)
+  - reg: Address start and address range for the device.
+  - #power-domain-cells: Must be 1.
+
+
+Example:
+
+	sysc: system-controller@e6180000 {
+		compatible = "renesas,r8a7791-sysc";
+		reg = <0 0xe6180000 0 0x0200>;
+		#power-domain-cells = <1>;
+	};
+
+
+== PM Domain Consumers ==
+
+Devices residing in a power area must refer to that power area, as documented
+by the generic PM domain bindings in
+Documentation/devicetree/bindings/power/power_domain.txt.
+
+Required properties:
+  - power-domains: A phandle and symbolic PM domain specifier, as defined in
+		   <dt-bindings/power/r8a77*-sysc.h>.
+
+
+Example:
+
+	L2_CA15: cache-controller@0 {
+		compatible = "cache";
+		power-domains = <&sysc R8A7791_PD_CA15_SCU>;
+		cache-unified;
+		cache-level = <2>;
+	};

MAINTAINERS

@@ -1491,6 +1491,8 @@ Q:	http://patchwork.kernel.org/project/linux-renesas-soc/list/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git next
 S:	Supported
 F:	arch/arm64/boot/dts/renesas/
+F:	drivers/soc/renesas/
+F:	include/linux/soc/renesas/
 
 ARM/RISCPC ARCHITECTURE
 M:	Russell King <linux@arm.linux.org.uk>
@@ -1604,6 +1606,8 @@ F:	arch/arm/configs/shmobile_defconfig
 F:	arch/arm/include/debug/renesas-scif.S
 F:	arch/arm/mach-shmobile/
 F:	drivers/sh/
+F:	drivers/soc/renesas/
+F:	include/linux/soc/renesas/
 
 ARM/SOCFPGA ARCHITECTURE
 M:	Dinh Nguyen <dinguyen@opensource.altera.com>

arch/arm/mach-shmobile/Kconfig

@@ -4,25 +4,22 @@ config ARCH_SHMOBILE
 config ARCH_SHMOBILE_MULTI
 	bool
 
-config PM_RCAR
-	bool
-	select PM
-	select PM_GENERIC_DOMAINS
-
 config PM_RMOBILE
 	bool
 	select PM
 	select PM_GENERIC_DOMAINS
 
 config ARCH_RCAR_GEN1
 	bool
-	select PM_RCAR
+	select PM
+	select PM_GENERIC_DOMAINS
 	select RENESAS_INTC_IRQPIN
 	select SYS_SUPPORTS_SH_TMU
 
 config ARCH_RCAR_GEN2
 	bool
-	select PM_RCAR
+	select PM
+	select PM_GENERIC_DOMAINS
 	select RENESAS_IRQC
 	select SYS_SUPPORTS_SH_CMT
 	select PCI_DOMAINS if PCI

arch/arm/mach-shmobile/Makefile

@@ -39,7 +39,6 @@ smp-$(CONFIG_ARCH_EMEV2)	+= smp-emev2.o headsmp-scu.o platsmp-scu.o
 # PM objects
 obj-$(CONFIG_SUSPEND)		+= suspend.o
 obj-$(CONFIG_CPU_FREQ)		+= cpufreq.o
-obj-$(CONFIG_PM_RCAR)		+= pm-rcar.o
 obj-$(CONFIG_PM_RMOBILE)	+= pm-rmobile.o
 obj-$(CONFIG_ARCH_RCAR_GEN2)	+= pm-rcar-gen2.o
 

arch/arm/mach-shmobile/pm-r8a7779.c

@@ -9,9 +9,10 @@
  * for more details.
  */
 
+#include <linux/soc/renesas/rcar-sysc.h>
+
 #include <asm/io.h>
 
-#include "pm-rcar.h"
 #include "r8a7779.h"
 
 /* SYSC */

arch/arm/mach-shmobile/pm-rcar-gen2.c

@@ -13,9 +13,9 @@
 #include <linux/kernel.h>
 #include <linux/of.h>
 #include <linux/smp.h>
+#include <linux/soc/renesas/rcar-sysc.h>
 #include <asm/io.h>
 #include "common.h"
-#include "pm-rcar.h"
 #include "rcar-gen2.h"
 
 /* RST */

arch/arm/mach-shmobile/smp-r8a7779.c

@@ -19,13 +19,13 @@
 #include <linux/spinlock.h>
 #include <linux/io.h>
 #include <linux/delay.h>
+#include <linux/soc/renesas/rcar-sysc.h>
 
 #include <asm/cacheflush.h>
 #include <asm/smp_plat.h>
 #include <asm/smp_scu.h>
 
 #include "common.h"
-#include "pm-rcar.h"
 #include "r8a7779.h"
 
 #define AVECR IOMEM(0xfe700040)

arch/arm/mach-shmobile/smp-r8a7790.c

@@ -17,12 +17,12 @@
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/io.h>
+#include <linux/soc/renesas/rcar-sysc.h>
 
 #include <asm/smp_plat.h>
 
 #include "common.h"
 #include "platsmp-apmu.h"
-#include "pm-rcar.h"
 #include "rcar-gen2.h"
 #include "r8a7790.h"
 

drivers/clk/Kconfig

@@ -201,6 +201,7 @@ source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"
 source "drivers/clk/mvebu/Kconfig"
 source "drivers/clk/qcom/Kconfig"
+source "drivers/clk/renesas/Kconfig"
 source "drivers/clk/samsung/Kconfig"
 source "drivers/clk/tegra/Kconfig"
 source "drivers/clk/ti/Kconfig"

drivers/clk/renesas/Kconfig

@@ -0,0 +1,16 @@
+config CLK_RENESAS_CPG_MSSR
+	bool
+	default y if ARCH_R8A7795
+
+config CLK_RENESAS_CPG_MSTP
+	bool
+	default y if ARCH_R7S72100
+	default y if ARCH_R8A73A4
+	default y if ARCH_R8A7740
+	default y if ARCH_R8A7778
+	default y if ARCH_R8A7779
+	default y if ARCH_R8A7790
+	default y if ARCH_R8A7791
+	default y if ARCH_R8A7793
+	default y if ARCH_R8A7794
+	default y if ARCH_SH73A0

drivers/clk/renesas/Makefile

@@ -1,13 +1,15 @@
 obj-$(CONFIG_ARCH_EMEV2)		+= clk-emev2.o
-obj-$(CONFIG_ARCH_R7S72100)		+= clk-rz.o clk-mstp.o
-obj-$(CONFIG_ARCH_R8A73A4)		+= clk-r8a73a4.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7740)		+= clk-r8a7740.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7778)		+= clk-r8a7778.o clk-mstp.o
-obj-$(CONFIG_ARCH_R8A7779)		+= clk-r8a7779.o clk-mstp.o
-obj-$(CONFIG_ARCH_R8A7790)		+= clk-rcar-gen2.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7791)		+= clk-rcar-gen2.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7793)		+= clk-rcar-gen2.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7794)		+= clk-rcar-gen2.o clk-mstp.o clk-div6.o
-obj-$(CONFIG_ARCH_R8A7795)		+= renesas-cpg-mssr.o \
-					   r8a7795-cpg-mssr.o clk-div6.o
-obj-$(CONFIG_ARCH_SH73A0)		+= clk-sh73a0.o clk-mstp.o clk-div6.o
+obj-$(CONFIG_ARCH_R7S72100)		+= clk-rz.o
+obj-$(CONFIG_ARCH_R8A73A4)		+= clk-r8a73a4.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7740)		+= clk-r8a7740.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7778)		+= clk-r8a7778.o
+obj-$(CONFIG_ARCH_R8A7779)		+= clk-r8a7779.o
+obj-$(CONFIG_ARCH_R8A7790)		+= clk-rcar-gen2.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7791)		+= clk-rcar-gen2.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7793)		+= clk-rcar-gen2.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7794)		+= clk-rcar-gen2.o clk-div6.o
+obj-$(CONFIG_ARCH_R8A7795)		+= r8a7795-cpg-mssr.o
+obj-$(CONFIG_ARCH_SH73A0)		+= clk-sh73a0.o clk-div6.o
+
+obj-$(CONFIG_CLK_RENESAS_CPG_MSSR)	+= renesas-cpg-mssr.o clk-div6.o
+obj-$(CONFIG_CLK_RENESAS_CPG_MSTP)	+= clk-mstp.o

drivers/clk/renesas/clk-mstp.c

@@ -243,9 +243,7 @@ static void __init cpg_mstp_clocks_init(struct device_node *np)
 }
 CLK_OF_DECLARE(cpg_mstp_clks, "renesas,cpg-mstp-clocks", cpg_mstp_clocks_init);
 
-
-#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
-int cpg_mstp_attach_dev(struct generic_pm_domain *domain, struct device *dev)
+int cpg_mstp_attach_dev(struct generic_pm_domain *unused, struct device *dev)
 {
 	struct device_node *np = dev->of_node;
 	struct of_phandle_args clkspec;
@@ -297,7 +295,7 @@ int cpg_mstp_attach_dev(struct generic_pm_domain *domain, struct device *dev)
 	return error;
 }
 
-void cpg_mstp_detach_dev(struct generic_pm_domain *domain, struct device *dev)
+void cpg_mstp_detach_dev(struct generic_pm_domain *unused, struct device *dev)
 {
 	if (!list_empty(&dev->power.subsys_data->clock_list))
 		pm_clk_destroy(dev);
@@ -326,4 +324,3 @@ void __init cpg_mstp_add_clk_domain(struct device_node *np)
 
 	of_genpd_add_provider_simple(np, pd);
 }
-#endif /* !CONFIG_PM_GENERIC_DOMAINS_OF */