clk: renesas: Reinstate RPC clock on R-Car D3/E3

Reinstate RPC clock on D3/E3 after Linux 5.12 synchronization.
The D3 and E3 clock drivers do not contain RPC clock entries
mainline Linux yet.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>

drivers/clk/renesas/r8a77990-cpg-mssr.c

@@ -44,6 +44,7 @@ enum clk_ids {
 	CLK_S2,
 	CLK_S3,
 	CLK_SDSRC,
+	CLK_RPCSRC,
 	CLK_RINT,
 	CLK_OCO,
 
@@ -74,6 +75,13 @@ static const struct cpg_core_clk r8a77990_core_clks[] = {
 	DEF_FIXED(".s3",       CLK_S3,             CLK_PLL1,       6, 1),
 	DEF_FIXED(".sdsrc",    CLK_SDSRC,          CLK_PLL1,       2, 1),
 
+	DEF_FIXED_RPCSRC_E3(".rpcsrc", CLK_RPCSRC, CLK_PLL0, CLK_PLL1),
+
+	DEF_BASE("rpc",		R8A77990_CLK_RPC, CLK_TYPE_GEN3_RPC,
+		 CLK_RPCSRC),
+	DEF_BASE("rpcd2",	R8A77990_CLK_RPCD2, CLK_TYPE_GEN3_RPCD2,
+		 R8A77990_CLK_RPC),
+
 	DEF_DIV6_RO(".r",      CLK_RINT,           CLK_EXTAL, CPG_RCKCR, 32),
 
 	DEF_RATE(".oco",       CLK_OCO,            8 * 1000 * 1000),
@@ -211,6 +219,7 @@ static const struct mssr_mod_clk r8a77990_mod_clks[] = {
 	DEF_MOD("can-fd",		 914,	R8A77990_CLK_S3D2),
 	DEF_MOD("can-if1",		 915,	R8A77990_CLK_S3D4),
 	DEF_MOD("can-if0",		 916,	R8A77990_CLK_S3D4),
+	DEF_MOD("rpc",			 917,	R8A77990_CLK_RPC),
 	DEF_MOD("i2c6",			 918,	R8A77990_CLK_S3D2),
 	DEF_MOD("i2c5",			 919,	R8A77990_CLK_S3D2),
 	DEF_MOD("i2c-dvfs",		 926,	R8A77990_CLK_CP),

drivers/clk/renesas/r8a77995-cpg-mssr.c

@@ -42,6 +42,7 @@ enum clk_ids {
 	CLK_S2,
 	CLK_S3,
 	CLK_SDSRC,
+	CLK_RPCSRC,
 	CLK_RINT,
 	CLK_OCO,
 
@@ -70,6 +71,13 @@ static const struct cpg_core_clk r8a77995_core_clks[] = {
 	DEF_FIXED(".s3",       CLK_S3,             CLK_PLL1,       6, 1),
 	DEF_FIXED(".sdsrc",    CLK_SDSRC,          CLK_PLL1,       2, 1),
 
+	DEF_FIXED_RPCSRC_E3(".rpcsrc", CLK_RPCSRC, CLK_PLL0, CLK_PLL1),
+
+	DEF_BASE("rpc",		R8A77995_CLK_RPC, CLK_TYPE_GEN3_RPC,
+		 CLK_RPCSRC),
+	DEF_BASE("rpcd2",	R8A77995_CLK_RPCD2, CLK_TYPE_GEN3_RPCD2,
+		 R8A77995_CLK_RPC),
+
 	DEF_DIV6_RO(".r",      CLK_RINT,           CLK_EXTAL, CPG_RCKCR, 32),
 
 	DEF_RATE(".oco",       CLK_OCO,            8 * 1000 * 1000),
@@ -171,6 +179,7 @@ static const struct mssr_mod_clk r8a77995_mod_clks[] = {
 	DEF_MOD("can-fd",		 914,	R8A77995_CLK_S3D2),
 	DEF_MOD("can-if1",		 915,	R8A77995_CLK_S3D4),
 	DEF_MOD("can-if0",		 916,	R8A77995_CLK_S3D4),
+	DEF_MOD("rpc",			 917,	R8A77995_CLK_RPC),
 	DEF_MOD("i2c3",			 928,	R8A77995_CLK_S3D2),
 	DEF_MOD("i2c2",			 929,	R8A77995_CLK_S3D2),
 	DEF_MOD("i2c1",			 930,	R8A77995_CLK_S3D2),