[PATCH 4.19 156/521] clk: socfpga: use clk_hw_register for a5/c5

[Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>]

From: Dinh Nguyen <dinguyen@xxxxxxxxxx>

[ Upstream commit 2c2b9c6067170de2a63e7e3d9f5bb205b870de7c ]

As recommended by Stephen Boyd, convert the cyclone5/arria5 clock driver
to use the clk_hw registration method.

Suggested-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210302214151.1333447-1-dinguyen@xxxxxxxxxx
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/clk/socfpga/clk-gate.c   | 11 +++++++----
 drivers/clk/socfpga/clk-periph.c |  8 ++++----
 drivers/clk/socfpga/clk-pll.c    | 18 +++++++++++-------
 3 files changed, 22 insertions(+), 15 deletions(-)

diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
index 14918896811d..139b009eda82 100644
--- a/drivers/clk/socfpga/clk-gate.c
+++ b/drivers/clk/socfpga/clk-gate.c
@@ -183,12 +183,13 @@ static void __init __socfpga_gate_init(struct device_node *node,
 	u32 div_reg[3];
 	u32 clk_phase[2];
 	u32 fixed_div;
-	struct clk *clk;
+	struct clk_hw *hw_clk;
 	struct socfpga_gate_clk *socfpga_clk;
 	const char *clk_name = node->name;
 	const char *parent_name[SOCFPGA_MAX_PARENTS];
 	struct clk_init_data init;
 	int rc;
+	int err;
 
 	socfpga_clk = kzalloc(sizeof(*socfpga_clk), GFP_KERNEL);
 	if (WARN_ON(!socfpga_clk))
@@ -237,12 +238,14 @@ static void __init __socfpga_gate_init(struct device_node *node,
 	init.parent_names = parent_name;
 	socfpga_clk->hw.hw.init = &init;
 
-	clk = clk_register(NULL, &socfpga_clk->hw.hw);
-	if (WARN_ON(IS_ERR(clk))) {
+	hw_clk = &socfpga_clk->hw.hw;
+
+	err = clk_hw_register(NULL, hw_clk);
+	if (err) {
 		kfree(socfpga_clk);
 		return;
 	}
-	rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	rc = of_clk_add_provider(node, of_clk_src_simple_get, hw_clk);
 	if (WARN_ON(rc))
 		return;
 }
diff --git a/drivers/clk/socfpga/clk-periph.c b/drivers/clk/socfpga/clk-periph.c
index 52c883ea7706..912c3059cbe4 100644
--- a/drivers/clk/socfpga/clk-periph.c
+++ b/drivers/clk/socfpga/clk-periph.c
@@ -61,7 +61,7 @@ static __init void __socfpga_periph_init(struct device_node *node,
 	const struct clk_ops *ops)
 {
 	u32 reg;
-	struct clk *clk;
+	struct clk_hw *hw_clk;
 	struct socfpga_periph_clk *periph_clk;
 	const char *clk_name = node->name;
 	const char *parent_name[SOCFPGA_MAX_PARENTS];
@@ -104,13 +104,13 @@ static __init void __socfpga_periph_init(struct device_node *node,
 	init.parent_names = parent_name;
 
 	periph_clk->hw.hw.init = &init;
+	hw_clk = &periph_clk->hw.hw;
 
-	clk = clk_register(NULL, &periph_clk->hw.hw);
-	if (WARN_ON(IS_ERR(clk))) {
+	if (clk_hw_register(NULL, hw_clk)) {
 		kfree(periph_clk);
 		return;
 	}
-	rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	rc = of_clk_add_provider(node, of_clk_src_simple_get, hw_clk);
 }
 
 void __init socfpga_periph_init(struct device_node *node)
diff --git a/drivers/clk/socfpga/clk-pll.c b/drivers/clk/socfpga/clk-pll.c
index 973c4713d085..7bde8ca45d4b 100644
--- a/drivers/clk/socfpga/clk-pll.c
+++ b/drivers/clk/socfpga/clk-pll.c
@@ -80,16 +80,18 @@ static struct clk_ops clk_pll_ops = {
 	.get_parent = clk_pll_get_parent,
 };
 
-static __init struct clk *__socfpga_pll_init(struct device_node *node,
+static __init struct clk_hw *__socfpga_pll_init(struct device_node *node,
 	const struct clk_ops *ops)
 {
 	u32 reg;
-	struct clk *clk;
+	struct clk_hw *hw_clk;
 	struct socfpga_pll *pll_clk;
 	const char *clk_name = node->name;
 	const char *parent_name[SOCFPGA_MAX_PARENTS];
 	struct clk_init_data init;
 	struct device_node *clkmgr_np;
+	int rc;
+	int err;
 
 	of_property_read_u32(node, "reg", &reg);
 
@@ -117,13 +119,15 @@ static __init struct clk *__socfpga_pll_init(struct device_node *node,
 	clk_pll_ops.enable = clk_gate_ops.enable;
 	clk_pll_ops.disable = clk_gate_ops.disable;
 
-	clk = clk_register(NULL, &pll_clk->hw.hw);
-	if (WARN_ON(IS_ERR(clk))) {
+	hw_clk = &pll_clk->hw.hw;
+
+	err = clk_hw_register(NULL, hw_clk);
+	if (err) {
 		kfree(pll_clk);
-		return NULL;
+		return ERR_PTR(err);
 	}
-	of_clk_add_provider(node, of_clk_src_simple_get, clk);
-	return clk;
+	rc = of_clk_add_provider(node, of_clk_src_simple_get, hw_clk);
+	return hw_clk;
 }
 
 void __init socfpga_pll_init(struct device_node *node)
-- 
2.35.1