Merge tag 'clk-renesas-for-v4.13-tag1' of git://git.kernel.org/pub/sc…

…m/linux/kernel/git/geert/renesas-drivers into clk-next

clk: renesas: Updates for v4.13

  - Add more module clocks for R-Car H3 ES2.0 and M3-W,
  - Add CPG/MSSR drivers for all supported R-Car Gen2 SoCs, enabling support
    for module resets, which are not supported by the existing driver,
  - Rework Kconfig and Makefile logic,
  - Small fixes and cleanups.

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

@@ -15,6 +15,11 @@ Required Properties:
   - compatible: Must be one of:
       - "renesas,r8a7743-cpg-mssr" for the r8a7743 SoC (RZ/G1M)
       - "renesas,r8a7745-cpg-mssr" for the r8a7745 SoC (RZ/G1E)
+      - "renesas,r8a7790-cpg-mssr" for the r8a7790 SoC (R-Car H2)
+      - "renesas,r8a7791-cpg-mssr" for the r8a7791 SoC (R-Car M2-W)
+      - "renesas,r8a7792-cpg-mssr" for the r8a7792 SoC (R-Car V2H)
+      - "renesas,r8a7793-cpg-mssr" for the r8a7793 SoC (R-Car M2-N)
+      - "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)
 
@@ -24,9 +29,10 @@ Required Properties:
   - 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" (r8a7743, r8a7745, r8a7795, r8a7796)
+      - "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794,
+		 r8a7795, r8a7796)
       - "extalr" (r8a7795, r8a7796)
-      - "usb_extal" (r8a7743, r8a7745)
+      - "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794)
 
   - #clock-cells: Must be 2
       - For CPG core clocks, the two clock specifier cells must be "CPG_CORE"

drivers/clk/Makefile

@@ -75,7 +75,7 @@ obj-$(CONFIG_COMMON_CLK_NXP)		+= nxp/
 obj-$(CONFIG_MACH_PISTACHIO)		+= pistachio/
 obj-$(CONFIG_COMMON_CLK_PXA)		+= pxa/
 obj-$(CONFIG_COMMON_CLK_QCOM)		+= qcom/
-obj-$(CONFIG_ARCH_RENESAS)		+= renesas/
+obj-y					+= renesas/
 obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
 obj-$(CONFIG_COMMON_CLK_SAMSUNG)	+= samsung/
 obj-$(CONFIG_ARCH_SIRF)			+= sirf/

drivers/clk/renesas/Kconfig

@@ -1,20 +1,129 @@
+config CLK_RENESAS
+	bool "Renesas SoC clock support" if COMPILE_TEST && !ARCH_RENESAS
+	default y if ARCH_RENESAS
+	select CLK_EMEV2 if ARCH_EMEV2
+	select CLK_RZA1 if ARCH_R7S72100
+	select CLK_R8A73A4 if ARCH_R8A73A4
+	select CLK_R8A7740 if ARCH_R8A7740
+	select CLK_R8A7743 if ARCH_R8A7743
+	select CLK_R8A7745 if ARCH_R8A7745
+	select CLK_R8A7778 if ARCH_R8A7778
+	select CLK_R8A7779 if ARCH_R8A7779
+	select CLK_R8A7790 if ARCH_R8A7790
+	select CLK_R8A7791 if ARCH_R8A7791 || ARCH_R8A7793
+	select CLK_R8A7792 if ARCH_R8A7792
+	select CLK_R8A7794 if ARCH_R8A7794
+	select CLK_R8A7795 if ARCH_R8A7795
+	select CLK_R8A7796 if ARCH_R8A7796
+	select CLK_SH73A0 if ARCH_SH73A0
+
+if CLK_RENESAS
+
+config CLK_RENESAS_LEGACY
+	bool "Legacy DT clock support"
+	depends on CLK_R8A7790 || CLK_R8A7791 || CLK_R8A7792 || CLK_R8A7794
+	default y
+	help
+	  Enable backward compatibility with old device trees describing a
+	  hierarchical representation of the various CPG and MSTP clocks.
+
+	  Say Y if you want your kernel to work with old DTBs.
+
+# SoC
+config CLK_EMEV2
+	bool "Emma Mobile EV2 clock support" if COMPILE_TEST
+
+config CLK_RZA1
+	bool
+	select CLK_RENESAS_CPG_MSTP
+
+config CLK_R8A73A4
+	bool
+	select CLK_RENESAS_CPG_MSTP
+	select CLK_RENESAS_DIV6
+
+config CLK_R8A7740
+	bool
+	select CLK_RENESAS_CPG_MSTP
+	select CLK_RENESAS_DIV6
+
+config CLK_R8A7743
+	bool
+	select CLK_RCAR_GEN2_CPG
+
+config CLK_R8A7745
+	bool
+	select CLK_RCAR_GEN2_CPG
+
+config CLK_R8A7778
+	bool
+	select CLK_RENESAS_CPG_MSTP
+
+config CLK_R8A7779
+	bool
+	select CLK_RENESAS_CPG_MSTP
+
+config CLK_R8A7790
+	bool
+	select CLK_RCAR_GEN2 if CLK_RENESAS_LEGACY
+	select CLK_RCAR_GEN2_CPG
+	select CLK_RENESAS_DIV6
+
+config CLK_R8A7791
+	bool
+	select CLK_RCAR_GEN2 if CLK_RENESAS_LEGACY
+	select CLK_RCAR_GEN2_CPG
+	select CLK_RENESAS_DIV6
+
+config CLK_R8A7792
+	bool
+	select CLK_RCAR_GEN2 if CLK_RENESAS_LEGACY
+	select CLK_RCAR_GEN2_CPG
+
+config CLK_R8A7794
+	bool
+	select CLK_RCAR_GEN2 if CLK_RENESAS_LEGACY
+	select CLK_RCAR_GEN2_CPG
+	select CLK_RENESAS_DIV6
+
+config CLK_R8A7795
+	bool
+	select CLK_RCAR_GEN3_CPG
+
+config CLK_R8A7796
+	bool
+	select CLK_RCAR_GEN3_CPG
+
+config CLK_SH73A0
+	bool
+	select CLK_RENESAS_CPG_MSTP
+	select CLK_RENESAS_DIV6
+
+
+# Family
+config CLK_RCAR_GEN2
+	bool
+	select CLK_RENESAS_CPG_MSTP
+	select CLK_RENESAS_DIV6
+
+config CLK_RCAR_GEN2_CPG
+	bool
+	select CLK_RENESAS_CPG_MSSR
+
+config CLK_RCAR_GEN3_CPG
+	bool
+	select CLK_RENESAS_CPG_MSSR
+
+
+# Generic
 config CLK_RENESAS_CPG_MSSR
 	bool
-	default y if ARCH_R8A7743
-	default y if ARCH_R8A7745
-	default y if ARCH_R8A7795
-	default y if ARCH_R8A7796
+	select CLK_RENESAS_DIV6
 
 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_R8A7792
-	default y if ARCH_R8A7793
-	default y if ARCH_R8A7794
-	default y if ARCH_SH73A0
+
+config CLK_RENESAS_DIV6
+	bool "DIV6 clock support" if COMPILE_TEST
+
+endif # CLK_RENESAS

drivers/clk/renesas/Makefile

@@ -1,19 +1,26 @@
-obj-$(CONFIG_ARCH_EMEV2)		+= clk-emev2.o
-obj-$(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-$(CONFIG_ARCH_R8A7743)		+= r8a7743-cpg-mssr.o rcar-gen2-cpg.o
-obj-$(CONFIG_ARCH_R8A7745)		+= r8a7745-cpg-mssr.o rcar-gen2-cpg.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-$(CONFIG_ARCH_R8A7792)		+= clk-rcar-gen2.o clk-div6.o
-obj-$(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 rcar-gen3-cpg.o
-obj-$(CONFIG_ARCH_R8A7796)		+= r8a7796-cpg-mssr.o rcar-gen3-cpg.o
-obj-$(CONFIG_ARCH_SH73A0)		+= clk-sh73a0.o clk-div6.o
+# SoC
+obj-$(CONFIG_CLK_EMEV2)			+= clk-emev2.o
+obj-$(CONFIG_CLK_RZA1)			+= clk-rz.o
+obj-$(CONFIG_CLK_R8A73A4)		+= clk-r8a73a4.o
+obj-$(CONFIG_CLK_R8A7740)		+= clk-r8a7740.o
+obj-$(CONFIG_CLK_R8A7743)		+= r8a7743-cpg-mssr.o
+obj-$(CONFIG_CLK_R8A7745)		+= r8a7745-cpg-mssr.o
+obj-$(CONFIG_CLK_R8A7778)		+= clk-r8a7778.o
+obj-$(CONFIG_CLK_R8A7779)		+= clk-r8a7779.o
+obj-$(CONFIG_CLK_R8A7790)		+= r8a7790-cpg-mssr.o
+obj-$(CONFIG_CLK_R8A7791)		+= r8a7791-cpg-mssr.o
+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_SH73A0)		+= clk-sh73a0.o
 
-obj-$(CONFIG_CLK_RENESAS_CPG_MSSR)	+= renesas-cpg-mssr.o clk-div6.o
+# Family
+obj-$(CONFIG_CLK_RCAR_GEN2)		+= clk-rcar-gen2.o
+obj-$(CONFIG_CLK_RCAR_GEN2_CPG)		+= rcar-gen2-cpg.o
+obj-$(CONFIG_CLK_RCAR_GEN3_CPG)		+= rcar-gen3-cpg.o
+
+# Generic
+obj-$(CONFIG_CLK_RENESAS_CPG_MSSR)	+= renesas-cpg-mssr.o
 obj-$(CONFIG_CLK_RENESAS_CPG_MSTP)	+= clk-mstp.o
+obj-$(CONFIG_CLK_RENESAS_DIV6)		+= clk-div6.o

drivers/clk/renesas/clk-mstp.c

@@ -325,7 +325,7 @@ int cpg_mstp_attach_dev(struct generic_pm_domain *unused, 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))
+	if (!pm_clk_no_clocks(dev))
 		pm_clk_destroy(dev);
 }
 

drivers/clk/renesas/clk-rcar-gen2.c

@@ -272,11 +272,14 @@ struct cpg_pll_config {
 	unsigned int extal_div;
 	unsigned int pll1_mult;
 	unsigned int pll3_mult;
+	unsigned int pll0_mult;		/* For R-Car V2H and E2 only */
 };
 
 static const struct cpg_pll_config cpg_pll_configs[8] __initconst = {
-	{ 1, 208, 106 }, { 1, 208,  88 }, { 1, 156,  80 }, { 1, 156,  66 },
-	{ 2, 240, 122 }, { 2, 240, 102 }, { 2, 208, 106 }, { 2, 208,  88 },
+	{ 1, 208, 106, 200 }, { 1, 208,  88, 200 },
+	{ 1, 156,  80, 150 }, { 1, 156,  66, 150 },
+	{ 2, 240, 122, 230 }, { 2, 240, 102, 230 },
+	{ 2, 208, 106, 200 }, { 2, 208,  88, 200 },
 };
 
 /* SDHI divisors */
@@ -298,6 +301,12 @@ static const struct clk_div_table cpg_sd01_div_table[] = {
 
 static u32 cpg_mode __initdata;
 
+static const char * const pll0_mult_match[] = {
+	"renesas,r8a7792-cpg-clocks",
+	"renesas,r8a7794-cpg-clocks",
+	NULL
+};
+
 static struct clk * __init
 rcar_gen2_cpg_register_clock(struct device_node *np, struct rcar_gen2_cpg *cpg,
 			     const struct cpg_pll_config *config,
@@ -318,9 +327,15 @@ rcar_gen2_cpg_register_clock(struct device_node *np, struct rcar_gen2_cpg *cpg,
 		 * clock implementation and we currently have no need to change
 		 * the multiplier value.
 		 */
-		u32 value = clk_readl(cpg->reg + CPG_PLL0CR);
+		if (of_device_compatible_match(np, pll0_mult_match)) {
+			/* R-Car V2H and E2 do not have PLL0CR */
+			mult = config->pll0_mult;
+			div = 3;
+		} else {
+			u32 value = clk_readl(cpg->reg + CPG_PLL0CR);
+			mult = ((value >> 24) & ((1 << 7) - 1)) + 1;
+		}
 		parent_name = "main";
-		mult = ((value >> 24) & ((1 << 7) - 1)) + 1;
 	} else if (!strcmp(name, "pll1")) {
 		parent_name = "main";
 		mult = config->pll1_mult / 2;

drivers/clk/renesas/r8a7745-cpg-mssr.c

@@ -167,16 +167,12 @@ static const struct mssr_mod_clk r8a7745_mod_clks[] __initconst = {
 	DEF_MOD("scu-dvc0",		1019,	MOD_CLK_ID(1017)),
 	DEF_MOD("scu-ctu1-mix1",	1020,	MOD_CLK_ID(1017)),
 	DEF_MOD("scu-ctu0-mix0",	1021,	MOD_CLK_ID(1017)),
-	DEF_MOD("scu-src9",		1022,	MOD_CLK_ID(1017)),
-	DEF_MOD("scu-src8",		1023,	MOD_CLK_ID(1017)),
-	DEF_MOD("scu-src7",		1024,	MOD_CLK_ID(1017)),
 	DEF_MOD("scu-src6",		1025,	MOD_CLK_ID(1017)),
 	DEF_MOD("scu-src5",		1026,	MOD_CLK_ID(1017)),
 	DEF_MOD("scu-src4",		1027,	MOD_CLK_ID(1017)),
 	DEF_MOD("scu-src3",		1028,	MOD_CLK_ID(1017)),
 	DEF_MOD("scu-src2",		1029,	MOD_CLK_ID(1017)),
 	DEF_MOD("scu-src1",		1030,	MOD_CLK_ID(1017)),
-	DEF_MOD("scu-src0",		1031,	MOD_CLK_ID(1017)),
 	DEF_MOD("scifa3",		1106,	R8A7745_CLK_MP),
 	DEF_MOD("scifa4",		1107,	R8A7745_CLK_MP),
 	DEF_MOD("scifa5",		1108,	R8A7745_CLK_MP),
@@ -194,31 +190,22 @@ static const unsigned int r8a7745_crit_mod_clks[] __initconst = {
  *    MD	EXTAL		PLL0	PLL1	PLL3
  * 14 13 19	(MHz)		*1	*2
  *---------------------------------------------------
- * 0  0  0	15		x200/3	x208/2	x106
  * 0  0  1	15		x200/3	x208/2	x88
- * 0  1  0	20		x150/3	x156/2	x80
  * 0  1  1	20		x150/3	x156/2	x66
- * 1  0  0	26 / 2		x230/3	x240/2	x122
  * 1  0  1	26 / 2		x230/3	x240/2	x102
- * 1  1  0	30 / 2		x200/3	x208/2	x106
  * 1  1  1	30 / 2		x200/3	x208/2	x88
  *
  * *1 :	Table 7.5b indicates VCO output (PLL0 = VCO/3)
  * *2 :	Table 7.5b indicates VCO output (PLL1 = VCO/2)
  */
-#define CPG_PLL_CONFIG_INDEX(md)	((((md) & BIT(14)) >> 12) | \
-					 (((md) & BIT(13)) >> 12) | \
-					 (((md) & BIT(19)) >> 19))
+#define CPG_PLL_CONFIG_INDEX(md)	((((md) & BIT(14)) >> 13) | \
+					 (((md) & BIT(13)) >> 13))
 
 static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[8] __initconst = {
 	/* EXTAL div	PLL1 mult	PLL3 mult	PLL0 mult */
-	{ 1,		208,		106,		200	},
 	{ 1,		208,		88,		200	},
-	{ 1,		156,		80,		150	},
 	{ 1,		156,		66,		150	},
-	{ 2,		240,		122,		230	},
 	{ 2,		240,		102,		230	},
-	{ 2,		208,		106,		200	},
 	{ 2,		208,		88,		200	},
 };