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Date:   Fri, 22 Mar 2019 15:37:04 +0000
From:   Abel Vesa <abel.vesa@....com>
To:     Stephen Boyd <sboyd@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Fabio Estevam <fabio.estevam@....com>,
        Aisheng Dong <aisheng.dong@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>
CC:     "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Abel Vesa <abel.vesa@....com>
Subject: [RFC 05/19] clk: imx: clk-busy: Switch to clk_hw based API

Switch all the clk_busy clock registering functions
to clk_hw based API.

Signed-off-by: Abel Vesa <abel.vesa@....com>
---
 drivers/clk/imx/clk-busy.c | 30 ++++++++++++++++++++----------
 drivers/clk/imx/clk.h      | 11 +++++++++--
 2 files changed, 29 insertions(+), 12 deletions(-)

diff --git a/drivers/clk/imx/clk-busy.c b/drivers/clk/imx/clk-busy.c
index e695622..51f75500 100644
--- a/drivers/clk/imx/clk-busy.c
+++ b/drivers/clk/imx/clk-busy.c
@@ -78,13 +78,14 @@ static const struct clk_ops clk_busy_divider_ops = {
 	.set_rate = clk_busy_divider_set_rate,
 };
 
-struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_busy_divider(const char *name, const char *parent_name,
 				 void __iomem *reg, u8 shift, u8 width,
 				 void __iomem *busy_reg, u8 busy_shift)
 {
 	struct clk_busy_divider *busy;
-	struct clk *clk;
+	struct clk_hw *hw;
 	struct clk_init_data init;
+	int ret;
 
 	busy = kzalloc(sizeof(*busy), GFP_KERNEL);
 	if (!busy)
@@ -107,11 +108,15 @@ struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
 
 	busy->div.hw.init = &init;
 
-	clk = clk_register(NULL, &busy->div.hw);
-	if (IS_ERR(clk))
+	hw = &busy->div.hw;
+
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
 		kfree(busy);
+		return ERR_PTR(ret);
+	}
 
-	return clk;
+	return hw;
 }
 
 struct clk_busy_mux {
@@ -152,13 +157,14 @@ static const struct clk_ops clk_busy_mux_ops = {
 	.set_parent = clk_busy_mux_set_parent,
 };
 
-struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
+struct clk_hw *imx_clk_hw_busy_mux(const char *name, void __iomem *reg, u8 shift,
 			     u8 width, void __iomem *busy_reg, u8 busy_shift,
 			     const char * const *parent_names, int num_parents)
 {
 	struct clk_busy_mux *busy;
-	struct clk *clk;
+	struct clk_hw *hw;
 	struct clk_init_data init;
+	int ret;
 
 	busy = kzalloc(sizeof(*busy), GFP_KERNEL);
 	if (!busy)
@@ -181,9 +187,13 @@ struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
 
 	busy->mux.hw.init = &init;
 
-	clk = clk_register(NULL, &busy->mux.hw);
-	if (IS_ERR(clk))
+	hw = &busy->mux.hw;
+
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
 		kfree(busy);
+		return ERR_PTR(ret);
+	}
 
-	return clk;
+	return hw;
 }
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index e78519c..69b2a13 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -10,6 +10,7 @@ extern spinlock_t imx_ccm_lock;
 void imx_check_clocks(struct clk *clks[], unsigned int count);
 void imx_check_clk_hws(struct clk_hw *clks[], unsigned int count);
 void imx_register_uart_clocks(struct clk ** const clks[]);
+void imx_register_uart_clocks_hws(struct clk_hw ** const hws[]);
 
 extern void imx_cscmr1_fixup(u32 *val);
 
@@ -48,6 +49,12 @@ struct imx_pll14xx_clk {
 	int flags;
 };
 
+#define imx_clk_busy_divider(name, parent_name, reg, shift, width, busy_reg, busy_shift) \
+	imx_clk_hw_busy_divider(name, parent_name, reg, shift, width, busy_reg, busy_shift)->clk
+
+#define imx_clk_busy_mux(name, reg, shift, width, busy_reg, busy_shift, parent_names, num_parents) \
+	imx_clk_hw_busy_mux(name, reg, shift, width, busy_reg, busy_shift, parent_names, num_parents)->clk
+
 struct clk *imx_clk_pll14xx(const char *name, const char *parent_name,
 		 void __iomem *base, const struct imx_pll14xx_clk *pll_clk);
 
@@ -109,11 +116,11 @@ struct clk *imx_clk_pfd(const char *name, const char *parent_name,
 struct clk_hw *imx_clk_pfdv2(const char *name, const char *parent_name,
 			     void __iomem *reg, u8 idx);
 
-struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
+struct clk_hw *imx_clk_hw_busy_divider(const char *name, const char *parent_name,
 				 void __iomem *reg, u8 shift, u8 width,
 				 void __iomem *busy_reg, u8 busy_shift);
 
-struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
+struct clk_hw *imx_clk_hw_busy_mux(const char *name, void __iomem *reg, u8 shift,
 			     u8 width, void __iomem *busy_reg, u8 busy_shift,
 			     const char * const *parent_names, int num_parents);
 
-- 
2.7.4

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