diff options
Diffstat (limited to 'drivers/clk/clkdev.c')
-rw-r--r-- | drivers/clk/clkdev.c | 59 |
1 files changed, 27 insertions, 32 deletions
diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c index 29a1ab7af4b8..043fd3633373 100644 --- a/drivers/clk/clkdev.c +++ b/drivers/clk/clkdev.c | |||
@@ -29,6 +29,20 @@ static DEFINE_MUTEX(clocks_mutex); | |||
29 | 29 | ||
30 | #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) | 30 | #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) |
31 | 31 | ||
32 | static struct clk *__of_clk_get_by_clkspec(struct of_phandle_args *clkspec, | ||
33 | const char *dev_id, const char *con_id) | ||
34 | { | ||
35 | struct clk *clk; | ||
36 | |||
37 | if (!clkspec) | ||
38 | return ERR_PTR(-EINVAL); | ||
39 | |||
40 | of_clk_lock(); | ||
41 | clk = __of_clk_get_from_provider(clkspec, dev_id, con_id); | ||
42 | of_clk_unlock(); | ||
43 | return clk; | ||
44 | } | ||
45 | |||
32 | /** | 46 | /** |
33 | * of_clk_get_by_clkspec() - Lookup a clock form a clock provider | 47 | * of_clk_get_by_clkspec() - Lookup a clock form a clock provider |
34 | * @clkspec: pointer to a clock specifier data structure | 48 | * @clkspec: pointer to a clock specifier data structure |
@@ -39,22 +53,11 @@ static DEFINE_MUTEX(clocks_mutex); | |||
39 | */ | 53 | */ |
40 | struct clk *of_clk_get_by_clkspec(struct of_phandle_args *clkspec) | 54 | struct clk *of_clk_get_by_clkspec(struct of_phandle_args *clkspec) |
41 | { | 55 | { |
42 | struct clk *clk; | 56 | return __of_clk_get_by_clkspec(clkspec, NULL, __func__); |
43 | |||
44 | if (!clkspec) | ||
45 | return ERR_PTR(-EINVAL); | ||
46 | |||
47 | of_clk_lock(); | ||
48 | clk = __of_clk_get_from_provider(clkspec); | ||
49 | |||
50 | if (!IS_ERR(clk) && !__clk_get(clk)) | ||
51 | clk = ERR_PTR(-ENOENT); | ||
52 | |||
53 | of_clk_unlock(); | ||
54 | return clk; | ||
55 | } | 57 | } |
56 | 58 | ||
57 | static struct clk *__of_clk_get(struct device_node *np, int index) | 59 | static struct clk *__of_clk_get(struct device_node *np, int index, |
60 | const char *dev_id, const char *con_id) | ||
58 | { | 61 | { |
59 | struct of_phandle_args clkspec; | 62 | struct of_phandle_args clkspec; |
60 | struct clk *clk; | 63 | struct clk *clk; |
@@ -68,7 +71,7 @@ static struct clk *__of_clk_get(struct device_node *np, int index) | |||
68 | if (rc) | 71 | if (rc) |
69 | return ERR_PTR(rc); | 72 | return ERR_PTR(rc); |
70 | 73 | ||
71 | clk = of_clk_get_by_clkspec(&clkspec); | 74 | clk = __of_clk_get_by_clkspec(&clkspec, dev_id, con_id); |
72 | of_node_put(clkspec.np); | 75 | of_node_put(clkspec.np); |
73 | 76 | ||
74 | return clk; | 77 | return clk; |
@@ -76,12 +79,7 @@ static struct clk *__of_clk_get(struct device_node *np, int index) | |||
76 | 79 | ||
77 | struct clk *of_clk_get(struct device_node *np, int index) | 80 | struct clk *of_clk_get(struct device_node *np, int index) |
78 | { | 81 | { |
79 | struct clk *clk = __of_clk_get(np, index); | 82 | return __of_clk_get(np, index, np->full_name, NULL); |
80 | |||
81 | if (!IS_ERR(clk)) | ||
82 | clk = __clk_create_clk(__clk_get_hw(clk), np->full_name, NULL); | ||
83 | |||
84 | return clk; | ||
85 | } | 83 | } |
86 | EXPORT_SYMBOL(of_clk_get); | 84 | EXPORT_SYMBOL(of_clk_get); |
87 | 85 | ||
@@ -102,12 +100,10 @@ static struct clk *__of_clk_get_by_name(struct device_node *np, | |||
102 | */ | 100 | */ |
103 | if (name) | 101 | if (name) |
104 | index = of_property_match_string(np, "clock-names", name); | 102 | index = of_property_match_string(np, "clock-names", name); |
105 | clk = __of_clk_get(np, index); | 103 | clk = __of_clk_get(np, index, dev_id, name); |
106 | if (!IS_ERR(clk)) { | 104 | if (!IS_ERR(clk)) { |
107 | clk = __clk_create_clk(__clk_get_hw(clk), dev_id, name); | ||
108 | break; | 105 | break; |
109 | } | 106 | } else if (name && index >= 0) { |
110 | else if (name && index >= 0) { | ||
111 | if (PTR_ERR(clk) != -EPROBE_DEFER) | 107 | if (PTR_ERR(clk) != -EPROBE_DEFER) |
112 | pr_err("ERROR: could not get clock %s:%s(%i)\n", | 108 | pr_err("ERROR: could not get clock %s:%s(%i)\n", |
113 | np->full_name, name ? name : "", index); | 109 | np->full_name, name ? name : "", index); |
@@ -209,17 +205,16 @@ struct clk *clk_get_sys(const char *dev_id, const char *con_id) | |||
209 | if (!cl) | 205 | if (!cl) |
210 | goto out; | 206 | goto out; |
211 | 207 | ||
212 | if (!__clk_get(cl->clk)) { | 208 | clk = __clk_create_clk(__clk_get_hw(cl->clk), dev_id, con_id); |
209 | if (IS_ERR(clk)) | ||
210 | goto out; | ||
211 | |||
212 | if (!__clk_get(clk)) { | ||
213 | __clk_free_clk(clk); | ||
213 | cl = NULL; | 214 | cl = NULL; |
214 | goto out; | 215 | goto out; |
215 | } | 216 | } |
216 | 217 | ||
217 | #if defined(CONFIG_COMMON_CLK) | ||
218 | clk = __clk_create_clk(__clk_get_hw(cl->clk), dev_id, con_id); | ||
219 | #else | ||
220 | clk = cl->clk; | ||
221 | #endif | ||
222 | |||
223 | out: | 218 | out: |
224 | mutex_unlock(&clocks_mutex); | 219 | mutex_unlock(&clocks_mutex); |
225 | 220 | ||