diff --git a/drivers/clk/at91/at91rm9200.c b/drivers/clk/at91/at91rm9200.c
index 7cb90d71d0ce..be88279c3443 100644
--- a/drivers/clk/at91/at91rm9200.c
+++ b/drivers/clk/at91/at91rm9200.c
@@ -126,7 +126,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
 
 	at91rm9200_pmc->chws[PMC_MAIN] = hw;
 
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, at91rm9200_pmc->chws[PMC_MAIN], 0,
+	hw = at91_clk_register_pll(regmap, "pllack", at91rm9200_pmc->chws[PMC_MAIN], 0,
 				   &at91rm9200_pll_layout,
 				   &rm9200_pll_characteristics);
 	if (IS_ERR(hw))
@@ -134,7 +134,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
 
 	at91rm9200_pmc->chws[PMC_PLLACK] = hw;
 
-	hw = at91_clk_register_pll(regmap, "pllbck", NULL, at91rm9200_pmc->chws[PMC_MAIN], 1,
+	hw = at91_clk_register_pll(regmap, "pllbck", at91rm9200_pmc->chws[PMC_MAIN], 1,
 				   &at91rm9200_pll_layout,
 				   &rm9200_pll_characteristics);
 	if (IS_ERR(hw))
diff --git a/drivers/clk/at91/at91sam9260.c b/drivers/clk/at91/at91sam9260.c
index 9839bd4586cd..bd5e0ce432d3 100644
--- a/drivers/clk/at91/at91sam9260.c
+++ b/drivers/clk/at91/at91sam9260.c
@@ -398,7 +398,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
 		slow_xtal_hw = hw;
 	}
 
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, at91sam9260_pmc->chws[PMC_MAIN], 0,
+	hw = at91_clk_register_pll(regmap, "pllack", at91sam9260_pmc->chws[PMC_MAIN], 0,
 				   data->plla_layout,
 				   data->plla_characteristics);
 	if (IS_ERR(hw))
@@ -406,7 +406,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
 
 	at91sam9260_pmc->chws[PMC_PLLACK] = hw;
 
-	hw = at91_clk_register_pll(regmap, "pllbck", NULL, at91sam9260_pmc->chws[PMC_MAIN], 1,
+	hw = at91_clk_register_pll(regmap, "pllbck", at91sam9260_pmc->chws[PMC_MAIN], 1,
 				   data->pllb_layout,
 				   data->pllb_characteristics);
 	if (IS_ERR(hw))
diff --git a/drivers/clk/at91/at91sam9g45.c b/drivers/clk/at91/at91sam9g45.c
index e7f2173ff6c1..ca585440c54f 100644
--- a/drivers/clk/at91/at91sam9g45.c
+++ b/drivers/clk/at91/at91sam9g45.c
@@ -141,7 +141,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
 
 	at91sam9g45_pmc->chws[PMC_MAIN] = hw;
 
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, at91sam9g45_pmc->chws[PMC_MAIN], 0,
+	hw = at91_clk_register_pll(regmap, "pllack", at91sam9g45_pmc->chws[PMC_MAIN], 0,
 				   &at91rm9200_pll_layout, &plla_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
diff --git a/drivers/clk/at91/at91sam9n12.c b/drivers/clk/at91/at91sam9n12.c
index 2d26c202b257..2109b8cdf4ad 100644
--- a/drivers/clk/at91/at91sam9n12.c
+++ b/drivers/clk/at91/at91sam9n12.c
@@ -167,7 +167,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
 
 	at91sam9n12_pmc->chws[PMC_MAIN] = hw;
 
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, at91sam9n12_pmc->chws[PMC_MAIN], 0,
+	hw = at91_clk_register_pll(regmap, "pllack", at91sam9n12_pmc->chws[PMC_MAIN], 0,
 				   &at91rm9200_pll_layout, &plla_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
@@ -178,7 +178,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
 
 	at91sam9n12_pmc->chws[PMC_PLLACK] = hw;
 
-	hw = at91_clk_register_pll(regmap, "pllbck", NULL, at91sam9n12_pmc->chws[PMC_MAIN], 1,
+	hw = at91_clk_register_pll(regmap, "pllbck", at91sam9n12_pmc->chws[PMC_MAIN], 1,
 				   &at91rm9200_pll_layout, &pllb_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
diff --git a/drivers/clk/at91/at91sam9rl.c b/drivers/clk/at91/at91sam9rl.c
index c7fc4bcf4e5b..4ae8028600d5 100644
--- a/drivers/clk/at91/at91sam9rl.c
+++ b/drivers/clk/at91/at91sam9rl.c
@@ -104,7 +104,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
 
 	at91sam9rl_pmc->chws[PMC_MAIN] = hw;
 
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, at91sam9rl_pmc->chws[PMC_MAIN], 0,
+	hw = at91_clk_register_pll(regmap, "pllack", at91sam9rl_pmc->chws[PMC_MAIN], 0,
 				   &at91rm9200_pll_layout,
 				   &sam9rl_plla_characteristics);
 	if (IS_ERR(hw))
diff --git a/drivers/clk/at91/at91sam9x5.c b/drivers/clk/at91/at91sam9x5.c
index 8da2732a73fa..4cbb72a29f14 100644
--- a/drivers/clk/at91/at91sam9x5.c
+++ b/drivers/clk/at91/at91sam9x5.c
@@ -189,7 +189,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
 
 	at91sam9x5_pmc->chws[PMC_MAIN] = hw;
 
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, at91sam9x5_pmc->chws[PMC_MAIN], 0,
+	hw = at91_clk_register_pll(regmap, "pllack", at91sam9x5_pmc->chws[PMC_MAIN], 0,
 				   &at91rm9200_pll_layout, &plla_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
diff --git a/drivers/clk/at91/clk-pll.c b/drivers/clk/at91/clk-pll.c
index afd48cbaa6db..2ba068718f83 100644
--- a/drivers/clk/at91/clk-pll.c
+++ b/drivers/clk/at91/clk-pll.c
@@ -310,7 +310,7 @@ static const struct clk_ops pll_ops = {
 
 struct clk_hw * __init
 at91_clk_register_pll(struct regmap *regmap, const char *name,
-		      const char *parent_name, struct clk_hw *parent_hw, u8 id,
+		      struct clk_hw *parent_hw, u8 id,
 		      const struct clk_pll_layout *layout,
 		      const struct clk_pll_characteristics *characteristics)
 {
@@ -330,10 +330,7 @@ at91_clk_register_pll(struct regmap *regmap, const char *name,
 
 	init.name = name;
 	init.ops = &pll_ops;
-	if (parent_hw)
-		init.parent_hws = (const struct clk_hw **)&parent_hw;
-	else
-		init.parent_names = &parent_name;
+	init.parent_hws = (const struct clk_hw **)&parent_hw;
 	init.num_parents = 1;
 	init.flags = CLK_SET_RATE_GATE;
 
diff --git a/drivers/clk/at91/dt-compat.c b/drivers/clk/at91/dt-compat.c
index 8f67a7a94c54..13e251e59853 100644
--- a/drivers/clk/at91/dt-compat.c
+++ b/drivers/clk/at91/dt-compat.c
@@ -740,7 +740,7 @@ of_at91_clk_pll_setup(struct device_node *np,
 	if (!characteristics)
 		return;
 
-	hw = at91_clk_register_pll(regmap, name, NULL, parent_hw, id, layout,
+	hw = at91_clk_register_pll(regmap, name, parent_hw, id, layout,
 				   characteristics);
 	if (IS_ERR(hw))
 		goto out_free_characteristics;
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index 54088c6d4de4..5fd1e76b3ec7 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -202,7 +202,7 @@ at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock,
 
 struct clk_hw * __init
 at91_clk_register_pll(struct regmap *regmap, const char *name,
-		      const char *parent_name, struct clk_hw *parent_hw, u8 id,
+		      struct clk_hw *parent_hw, u8 id,
 		      const struct clk_pll_layout *layout,
 		      const struct clk_pll_characteristics *characteristics);
 struct clk_hw * __init
diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index 809926c63078..b99a8bb9bf9a 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -221,7 +221,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 		goto err_free;
 
 	sama5d2_pmc->chws[PMC_MAIN] = hw;
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, sama5d2_pmc->chws[PMC_MAIN], 0,
+	hw = at91_clk_register_pll(regmap, "pllack", sama5d2_pmc->chws[PMC_MAIN], 0,
 				   &sama5d3_pll_layout, &plla_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
diff --git a/drivers/clk/at91/sama5d3.c b/drivers/clk/at91/sama5d3.c
index 4453f47798b7..35a9dfd0e66d 100644
--- a/drivers/clk/at91/sama5d3.c
+++ b/drivers/clk/at91/sama5d3.c
@@ -168,7 +168,7 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
 	if (IS_ERR(mainck_hw))
 		goto err_free;
 
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, mainck_hw, 0,
+	hw = at91_clk_register_pll(regmap, "pllack", mainck_hw, 0,
 				   &sama5d3_pll_layout, &plla_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
diff --git a/drivers/clk/at91/sama5d4.c b/drivers/clk/at91/sama5d4.c
index 9f6ad0699702..ae76c59c7d42 100644
--- a/drivers/clk/at91/sama5d4.c
+++ b/drivers/clk/at91/sama5d4.c
@@ -183,7 +183,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
-	hw = at91_clk_register_pll(regmap, "pllack", NULL, mainck_hw, 0,
+	hw = at91_clk_register_pll(regmap, "pllack", mainck_hw, 0,
 				   &sama5d3_pll_layout, &plla_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
