diff --git a/drivers/clk/renesas/r8a77990-cpg-mssr.c b/drivers/clk/renesas/r8a77990-cpg-mssr.c
index e5710b0..87b0666 100644
--- a/drivers/clk/renesas/r8a77990-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77990-cpg-mssr.c
@@ -224,6 +224,7 @@
 	DEF_MOD("rpc-if",		 917,	R8A77990_CLK_RPCD2),
 	DEF_MOD("i2c6",			 918,	R8A77990_CLK_S3D2),
 	DEF_MOD("i2c5",			 919,	R8A77990_CLK_S3D2),
+	DEF_MOD("adg",			 922,	R8A77990_CLK_ZA2),
 	DEF_MOD("i2c-dvfs",		 926,	R8A77990_CLK_CP),
 	DEF_MOD("i2c4",			 927,	R8A77990_CLK_S3D2),
 	DEF_MOD("i2c3",			 928,	R8A77990_CLK_S3D2),