clk: at91: audio-pll: separate registration from DT parsing

Separate registration out of of_sama5d2_clk_audio_pll*_setup to allow other
code to use it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
[sboyd@kernel.org: Include pmc.h]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 111 insertions, 38 deletions

diff --git a/drivers/clk/at91/clk-audio-pll.c b/drivers/clk/at91/clk-audio-pll.c
index b3eaf654fac9..03b704f0d22f 100644
--- a/drivers/clk/at91/clk-audio-pll.c
+++ b/drivers/clk/at91/clk-audio-pll.c
@@ -43,6 +43,8 @@
 #include <linux/regmap.h>
 #include <linux/slab.h>
 
+#include "pmc.h"
+
 #define AUDIO_PLL_DIV_FRAC      BIT(22)
 #define AUDIO_PLL_ND_MAX        (AT91_PMC_AUDIO_PLL_ND_MASK >> \
                                         AT91_PMC_AUDIO_PLL_ND_OFFSET)
@@ -444,85 +446,156 @@ static const struct clk_ops audio_pll_pmc_ops = {
         .set_rate = clk_audio_pll_pmc_set_rate,
 };
 
-static int of_sama5d2_clk_audio_pll_setup(struct device_node *np,
-                                          struct clk_init_data *init,
-                                          struct clk_hw *hw,
-                                          struct regmap **clk_audio_regmap)
+struct clk_hw * __init
+at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name,
+                                 const char *parent_name)
 {
-        struct regmap *regmap;
-        const char *parent_names[1];
+        struct clk_audio_frac *frac_ck;
+        struct clk_init_data init = {};
         int ret;
 
-        regmap = syscon_node_to_regmap(of_get_parent(np));
-        if (IS_ERR(regmap))
-                return PTR_ERR(regmap);
+        frac_ck = kzalloc(sizeof(*frac_ck), GFP_KERNEL);
+        if (!frac_ck)
+                return ERR_PTR(-ENOMEM);
 
-        init->name = np->name;
-        of_clk_parent_fill(np, parent_names, 1);
-        init->parent_names = parent_names;
-        init->num_parents = 1;
+        init.name = name;
+        init.ops = &audio_pll_frac_ops;
+        init.parent_names = &parent_name;
+        init.num_parents = 1;
+        init.flags = CLK_SET_RATE_GATE;
 
-        hw->init = init;
-        *clk_audio_regmap = regmap;
+        frac_ck->hw.init = &init;
+        frac_ck->regmap = regmap;
 
-        ret = clk_hw_register(NULL, hw);
-        if (ret)
-                return ret;
+        ret = clk_hw_register(NULL, &frac_ck->hw);
+        if (ret) {
+                kfree(frac_ck);
+                return ERR_PTR(ret);
+        }
 
-        return of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+        return &frac_ck->hw;
 }
 
 static void __init of_sama5d2_clk_audio_pll_frac_setup(struct device_node *np)
 {
-        struct clk_audio_frac *frac_ck;
-        struct clk_init_data init = {};
+        struct clk_hw *hw;
+        const char *name = np->name;
+        const char *parent_name;
+        struct regmap *regmap;
 
-        frac_ck = kzalloc(sizeof(*frac_ck), GFP_KERNEL);
-        if (!frac_ck)
+        regmap = syscon_node_to_regmap(of_get_parent(np));
+        if (IS_ERR(regmap))
                 return;
 
-        init.ops = &audio_pll_frac_ops;
-        init.flags = CLK_SET_RATE_GATE;
+        parent_name = of_clk_get_parent_name(np, 0);
 
-        if (of_sama5d2_clk_audio_pll_setup(np, &init, &frac_ck->hw,
-                                           &frac_ck->regmap))
-                kfree(frac_ck);
+        hw = at91_clk_register_audio_pll_frac(regmap, name, parent_name);
+        if (IS_ERR(hw))
+                return;
+
+        of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
 }
 
-static void __init of_sama5d2_clk_audio_pll_pad_setup(struct device_node *np)
+struct clk_hw * __init
+at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name,
+                                const char *parent_name)
 {
         struct clk_audio_pad *apad_ck;
-        struct clk_init_data init = {};
+        struct clk_init_data init;
+        int ret;
 
         apad_ck = kzalloc(sizeof(*apad_ck), GFP_KERNEL);
         if (!apad_ck)
-                return;
+                return ERR_PTR(-ENOMEM);
 
+        init.name = name;
         init.ops = &audio_pll_pad_ops;
+        init.parent_names = &parent_name;
+        init.num_parents = 1;
         init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
                 CLK_SET_RATE_PARENT;
 
-        if (of_sama5d2_clk_audio_pll_setup(np, &init, &apad_ck->hw,
-                                           &apad_ck->regmap))
+        apad_ck->hw.init = &init;
+        apad_ck->regmap = regmap;
+
+        ret = clk_hw_register(NULL, &apad_ck->hw);
+        if (ret) {
                 kfree(apad_ck);
+                return ERR_PTR(ret);
+        }
+
+        return &apad_ck->hw;
 }
 
-static void __init of_sama5d2_clk_audio_pll_pmc_setup(struct device_node *np)
+static void __init of_sama5d2_clk_audio_pll_pad_setup(struct device_node *np)
+{
+        struct clk_hw *hw;
+        const char *name = np->name;
+        const char *parent_name;
+        struct regmap *regmap;
+
+        regmap = syscon_node_to_regmap(of_get_parent(np));
+        if (IS_ERR(regmap))
+                return;
+
+        parent_name = of_clk_get_parent_name(np, 0);
+
+        hw = at91_clk_register_audio_pll_pad(regmap, name, parent_name);
+        if (IS_ERR(hw))
+                return;
+
+        of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+}
+
+struct clk_hw * __init
+at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name,
+                                const char *parent_name)
 {
         struct clk_audio_pmc *apmc_ck;
-        struct clk_init_data init = {};
+        struct clk_init_data init;
+        int ret;
 
         apmc_ck = kzalloc(sizeof(*apmc_ck), GFP_KERNEL);
         if (!apmc_ck)
-                return;
+                return ERR_PTR(-ENOMEM);
 
+        init.name = name;
         init.ops = &audio_pll_pmc_ops;
+        init.parent_names = &parent_name;
+        init.num_parents = 1;
         init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
                 CLK_SET_RATE_PARENT;
 
-        if (of_sama5d2_clk_audio_pll_setup(np, &init, &apmc_ck->hw,
-                                           &apmc_ck->regmap))
+        apmc_ck->hw.init = &init;
+        apmc_ck->regmap = regmap;
+
+        ret = clk_hw_register(NULL, &apmc_ck->hw);
+        if (ret) {
                 kfree(apmc_ck);
+                return ERR_PTR(ret);
+        }
+
+        return &apmc_ck->hw;
+}
+
+static void __init of_sama5d2_clk_audio_pll_pmc_setup(struct device_node *np)
+{
+        struct clk_hw *hw;
+        const char *name = np->name;
+        const char *parent_name;
+        struct regmap *regmap;
+
+        regmap = syscon_node_to_regmap(of_get_parent(np));
+        if (IS_ERR(regmap))
+                return;
+
+        parent_name = of_clk_get_parent_name(np, 0);
+
+        hw = at91_clk_register_audio_pll_pmc(regmap, name, parent_name);
+        if (IS_ERR(hw))
+                return;
+
+        of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
 }
 
 CLK_OF_DECLARE(of_sama5d2_clk_audio_pll_frac_setup,