clk: renesas: r8a779g0: Correct PFC/GPIO parent clocks

According to the R-Car V4H Series Hardware User’s Manual Rev.1.00, the
parent clock of the Pin Function (PFC/GPIO) module clocks is the CP
clock.

Fix this by adding the missing CP clock, and correcting the PFC parents.

Fixes: f2afa78 ("dt-bindings: clock: Add r8a779g0 CPG Core Clock Definitions")
Fixes: 36ff366 ("clk: renesas: r8a779g0: Add PFC/GPIO clocks")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/5401fccd204dc90b44f0013e7f53b9eff8df8214.1706197297.git.geert+renesas@glider.be

Author: geertu

drivers/clk/renesas/r8a779g0-cpg-mssr.c

@@ -22,7 +22,7 @@
 
 enum clk_ids {
 	/* Core Clock Outputs exported to DT */
-	LAST_DT_CORE_CLK = R8A779G0_CLK_R,
+	LAST_DT_CORE_CLK = R8A779G0_CLK_CP,
 
 	/* External Input Clocks */
 	CLK_EXTAL,
@@ -141,6 +141,7 @@ static const struct cpg_core_clk r8a779g0_core_clks[] __initconst = {
 	DEF_FIXED("svd2_vip",	R8A779G0_CLK_SVD2_VIP,	CLK_SV_VIP,	2, 1),
 	DEF_FIXED("cbfusa",	R8A779G0_CLK_CBFUSA,	CLK_EXTAL,	2, 1),
 	DEF_FIXED("cpex",	R8A779G0_CLK_CPEX,	CLK_EXTAL,	2, 1),
+	DEF_FIXED("cp",		R8A779G0_CLK_CP,	CLK_EXTAL,	2, 1),
 	DEF_FIXED("viobus",	R8A779G0_CLK_VIOBUS,	CLK_VIO,	1, 1),
 	DEF_FIXED("viobusd2",	R8A779G0_CLK_VIOBUSD2,	CLK_VIO,	2, 1),
 	DEF_FIXED("vcbus",	R8A779G0_CLK_VCBUS,	CLK_VC,		1, 1),
@@ -232,10 +233,10 @@ static const struct mssr_mod_clk r8a779g0_mod_clks[] __initconst = {
 	DEF_MOD("cmt1",		911,	R8A779G0_CLK_R),
 	DEF_MOD("cmt2",		912,	R8A779G0_CLK_R),
 	DEF_MOD("cmt3",		913,	R8A779G0_CLK_R),
-	DEF_MOD("pfc0",		915,	R8A779G0_CLK_CL16M),
-	DEF_MOD("pfc1",		916,	R8A779G0_CLK_CL16M),
-	DEF_MOD("pfc2",		917,	R8A779G0_CLK_CL16M),
-	DEF_MOD("pfc3",		918,	R8A779G0_CLK_CL16M),
+	DEF_MOD("pfc0",		915,	R8A779G0_CLK_CP),
+	DEF_MOD("pfc1",		916,	R8A779G0_CLK_CP),
+	DEF_MOD("pfc2",		917,	R8A779G0_CLK_CP),
+	DEF_MOD("pfc3",		918,	R8A779G0_CLK_CP),
 	DEF_MOD("tsc",		919,	R8A779G0_CLK_CL16M),
 	DEF_MOD("tsn",		2723,	R8A779G0_CLK_S0D4_HSC),
 	DEF_MOD("ssiu",		2926,	R8A779G0_CLK_S0D6_PER),

include/dt-bindings/clock/r8a779g0-cpg-mssr.h

@@ -86,5 +86,6 @@
 #define R8A779G0_CLK_CPEX		74
 #define R8A779G0_CLK_CBFUSA		75
 #define R8A779G0_CLK_R			76
+#define R8A779G0_CLK_CP			77
 
 #endif /* __DT_BINDINGS_CLOCK_R8A779G0_CPG_MSSR_H__ */