aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorIan Molton <spyro@f2s.com>2008-07-25 07:02:31 -0400
committerIan Molton <spyro@f2s.com>2008-08-12 07:54:30 -0400
commit5fedd0afd661cf2d387a6eb1b0df78ddbc0c9086 (patch)
treebd9055f838a9cd90fed0a19f226d51e5e2519232 /arch
parent67a6e80ede815224db22518cd08350277bbeddb9 (diff)
[ARM] clocklib: Allow dynamic alias creation
This patch allows dynamic creation of clock aliases in order to make it possible to have platform independent clock names for use in device drivers. Signed-off-by: Ian Molton <spyro@f2s.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-pxa/clock.c25
-rw-r--r--arch/arm/mach-pxa/clock.h5
2 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c
index c01eea88f787..ca8e20538157 100644
--- a/arch/arm/mach-pxa/clock.c
+++ b/arch/arm/mach-pxa/clock.c
@@ -125,3 +125,28 @@ void clks_register(struct clk *clks, size_t num)
125 list_add(&clks[i].node, &clocks); 125 list_add(&clks[i].node, &clocks);
126 mutex_unlock(&clocks_mutex); 126 mutex_unlock(&clocks_mutex);
127} 127}
128
129int clk_add_alias(char *alias, struct device *alias_dev, char *id,
130 struct device *dev)
131{
132 struct clk *r = clk_lookup(dev, id);
133 struct clk *new;
134
135 if (!r)
136 return -ENODEV;
137
138 new = kzalloc(sizeof(struct clk), GFP_KERNEL);
139
140 if (!new)
141 return -ENOMEM;
142
143 new->name = alias;
144 new->dev = alias_dev;
145 new->other = r;
146
147 mutex_lock(&clocks_mutex);
148 list_add(&new->node, &clocks);
149 mutex_unlock(&clocks_mutex);
150
151 return 0;
152}
diff --git a/arch/arm/mach-pxa/clock.h b/arch/arm/mach-pxa/clock.h
index 1ec8f9178aaf..73be795fe3bf 100644
--- a/arch/arm/mach-pxa/clock.h
+++ b/arch/arm/mach-pxa/clock.h
@@ -1,3 +1,5 @@
1#include <linux/list.h>
2
1struct clk; 3struct clk;
2 4
3struct clkops { 5struct clkops {
@@ -86,3 +88,6 @@ extern void clk_pxa3xx_cken_disable(struct clk *);
86#endif 88#endif
87 89
88void clks_register(struct clk *clks, size_t num); 90void clks_register(struct clk *clks, size_t num);
91int clk_add_alias(char *alias, struct device *alias_dev, char *id,
92 struct device *dev);
93