diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c
index 1fe71a18cf86..d6351140f1ab 100644
--- a/drivers/clk/renesas/rzg2l-cpg.c
+++ b/drivers/clk/renesas/rzg2l-cpg.c
@@ -339,8 +339,7 @@ static const struct clk_ops rzg3s_div_clk_ops = {
 };
 
 static struct clk * __init
-rzg3s_cpg_div_clk_register(const struct cpg_core_clk *core, struct clk **clks,
-			   void __iomem *base, struct rzg2l_cpg_priv *priv)
+rzg3s_cpg_div_clk_register(const struct cpg_core_clk *core, struct rzg2l_cpg_priv *priv)
 {
 	struct div_hw_data *div_hw_data;
 	struct clk_init_data init = {};
@@ -351,7 +350,7 @@ rzg3s_cpg_div_clk_register(const struct cpg_core_clk *core, struct clk **clks,
 	u32 max = 0;
 	int ret;
 
-	parent = clks[core->parent & 0xffff];
+	parent = priv->clks[core->parent];
 	if (IS_ERR(parent))
 		return ERR_CAST(parent);
 
@@ -400,16 +399,15 @@ rzg3s_cpg_div_clk_register(const struct cpg_core_clk *core, struct clk **clks,
 
 static struct clk * __init
 rzg2l_cpg_div_clk_register(const struct cpg_core_clk *core,
-			   struct clk **clks,
-			   void __iomem *base,
 			   struct rzg2l_cpg_priv *priv)
 {
+	void __iomem *base = priv->base;
 	struct device *dev = priv->dev;
 	const struct clk *parent;
 	const char *parent_name;
 	struct clk_hw *clk_hw;
 
-	parent = clks[core->parent & 0xffff];
+	parent = priv->clks[core->parent];
 	if (IS_ERR(parent))
 		return ERR_CAST(parent);
 
@@ -440,7 +438,6 @@ rzg2l_cpg_div_clk_register(const struct cpg_core_clk *core,
 
 static struct clk * __init
 rzg2l_cpg_mux_clk_register(const struct cpg_core_clk *core,
-			   void __iomem *base,
 			   struct rzg2l_cpg_priv *priv)
 {
 	const struct clk_hw *clk_hw;
@@ -448,7 +445,7 @@ rzg2l_cpg_mux_clk_register(const struct cpg_core_clk *core,
 	clk_hw = devm_clk_hw_register_mux(priv->dev, core->name,
 					  core->parent_names, core->num_parents,
 					  core->flag,
-					  base + GET_REG_OFFSET(core->conf),
+					  priv->base + GET_REG_OFFSET(core->conf),
 					  GET_SHIFT(core->conf),
 					  GET_WIDTH(core->conf),
 					  core->mux_flags, &priv->rmw_lock);
@@ -508,7 +505,6 @@ static const struct clk_ops rzg2l_cpg_sd_clk_mux_ops = {
 
 static struct clk * __init
 rzg2l_cpg_sd_mux_clk_register(const struct cpg_core_clk *core,
-			      void __iomem *base,
 			      struct rzg2l_cpg_priv *priv)
 {
 	struct sd_mux_hw_data *sd_mux_hw_data;
@@ -652,7 +648,6 @@ static const struct clk_ops rzg2l_cpg_dsi_div_ops = {
 
 static struct clk * __init
 rzg2l_cpg_dsi_div_clk_register(const struct cpg_core_clk *core,
-			       struct clk **clks,
 			       struct rzg2l_cpg_priv *priv)
 {
 	struct dsi_div_hw_data *clk_hw_data;
@@ -662,7 +657,7 @@ rzg2l_cpg_dsi_div_clk_register(const struct cpg_core_clk *core,
 	struct clk_hw *clk_hw;
 	int ret;
 
-	parent = clks[core->parent & 0xffff];
+	parent = priv->clks[core->parent];
 	if (IS_ERR(parent))
 		return ERR_CAST(parent);
 
@@ -900,7 +895,6 @@ static const struct clk_ops rzg2l_cpg_sipll5_ops = {
 
 static struct clk * __init
 rzg2l_cpg_sipll5_register(const struct cpg_core_clk *core,
-			  struct clk **clks,
 			  struct rzg2l_cpg_priv *priv)
 {
 	const struct clk *parent;
@@ -910,7 +904,7 @@ rzg2l_cpg_sipll5_register(const struct cpg_core_clk *core,
 	struct clk_hw *clk_hw;
 	int ret;
 
-	parent = clks[core->parent & 0xffff];
+	parent = priv->clks[core->parent];
 	if (IS_ERR(parent))
 		return ERR_CAST(parent);
 
@@ -1013,8 +1007,6 @@ static const struct clk_ops rzg3s_cpg_pll_ops = {
 
 static struct clk * __init
 rzg2l_cpg_pll_clk_register(const struct cpg_core_clk *core,
-			   struct clk **clks,
-			   void __iomem *base,
 			   struct rzg2l_cpg_priv *priv,
 			   const struct clk_ops *ops)
 {
@@ -1025,7 +1017,7 @@ rzg2l_cpg_pll_clk_register(const struct cpg_core_clk *core,
 	struct pll_clk *pll_clk;
 	int ret;
 
-	parent = clks[core->parent & 0xffff];
+	parent = priv->clks[core->parent];
 	if (IS_ERR(parent))
 		return ERR_CAST(parent);
 
@@ -1042,7 +1034,7 @@ rzg2l_cpg_pll_clk_register(const struct cpg_core_clk *core,
 
 	pll_clk->hw.init = &init;
 	pll_clk->conf = core->conf;
-	pll_clk->base = base;
+	pll_clk->base = priv->base;
 	pll_clk->priv = priv;
 	pll_clk->type = core->type;
 
@@ -1140,34 +1132,31 @@ rzg2l_cpg_register_core_clk(const struct cpg_core_clk *core,
 			clk = clk_hw->clk;
 		break;
 	case CLK_TYPE_SAM_PLL:
-		clk = rzg2l_cpg_pll_clk_register(core, priv->clks, priv->base, priv,
-						 &rzg2l_cpg_pll_ops);
+		clk = rzg2l_cpg_pll_clk_register(core, priv, &rzg2l_cpg_pll_ops);
 		break;
 	case CLK_TYPE_G3S_PLL:
-		clk = rzg2l_cpg_pll_clk_register(core, priv->clks, priv->base, priv,
-						 &rzg3s_cpg_pll_ops);
+		clk = rzg2l_cpg_pll_clk_register(core, priv, &rzg3s_cpg_pll_ops);
 		break;
 	case CLK_TYPE_SIPLL5:
-		clk = rzg2l_cpg_sipll5_register(core, priv->clks, priv);
+		clk = rzg2l_cpg_sipll5_register(core, priv);
 		break;
 	case CLK_TYPE_DIV:
-		clk = rzg2l_cpg_div_clk_register(core, priv->clks,
-						 priv->base, priv);
+		clk = rzg2l_cpg_div_clk_register(core, priv);
 		break;
 	case CLK_TYPE_G3S_DIV:
-		clk = rzg3s_cpg_div_clk_register(core, priv->clks, priv->base, priv);
+		clk = rzg3s_cpg_div_clk_register(core, priv);
 		break;
 	case CLK_TYPE_MUX:
-		clk = rzg2l_cpg_mux_clk_register(core, priv->base, priv);
+		clk = rzg2l_cpg_mux_clk_register(core, priv);
 		break;
 	case CLK_TYPE_SD_MUX:
-		clk = rzg2l_cpg_sd_mux_clk_register(core, priv->base, priv);
+		clk = rzg2l_cpg_sd_mux_clk_register(core, priv);
 		break;
 	case CLK_TYPE_PLL5_4_MUX:
 		clk = rzg2l_cpg_pll5_4_mux_clk_register(core, priv);
 		break;
 	case CLK_TYPE_DSI_DIV:
-		clk = rzg2l_cpg_dsi_div_clk_register(core, priv->clks, priv);
+		clk = rzg2l_cpg_dsi_div_clk_register(core, priv);
 		break;
 	default:
 		goto fail;
