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| author | Ian Molton <spyro@f2s.com> | 2008-07-25 12:02:31 +0100 |
|---|---|---|
| committer | Ian Molton <spyro@f2s.com> | 2008-08-12 12:54:30 +0100 |
| commit | 5fedd0afd661cf2d387a6eb1b0df78ddbc0c9086 (patch) | |
| tree | bd9055f838a9cd90fed0a19f226d51e5e2519232 /arch/arm | |
| parent | 67a6e80ede815224db22518cd08350277bbeddb9 (diff) | |
| download | linux-5fedd0afd661cf2d387a6eb1b0df78ddbc0c9086.tar.bz2 | |
[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/arm')
| -rw-r--r-- | arch/arm/mach-pxa/clock.c | 25 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/clock.h | 5 |
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) list_add(&clks[i].node, &clocks); mutex_unlock(&clocks_mutex); } + +int clk_add_alias(char *alias, struct device *alias_dev, char *id, + struct device *dev) +{ + struct clk *r = clk_lookup(dev, id); + struct clk *new; + + if (!r) + return -ENODEV; + + new = kzalloc(sizeof(struct clk), GFP_KERNEL); + + if (!new) + return -ENOMEM; + + new->name = alias; + new->dev = alias_dev; + new->other = r; + + mutex_lock(&clocks_mutex); + list_add(&new->node, &clocks); + mutex_unlock(&clocks_mutex); + + return 0; +} 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 @@ +#include <linux/list.h> + struct clk; struct clkops { @@ -86,3 +88,6 @@ extern void clk_pxa3xx_cken_disable(struct clk *); #endif void clks_register(struct clk *clks, size_t num); +int clk_add_alias(char *alias, struct device *alias_dev, char *id, + struct device *dev); + |