diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2012-04-07 21:39:39 -0500 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2012-07-11 17:58:46 -0700 |
| commit | 015ba40246497ae02a5f644d4c8adfec76d9b75c (patch) | |
| tree | bc14e32c38c79ca9e1b0d822042730aa21aac1d9 /drivers/clk/clk-fixed-rate.c | |
| parent | 766e6a4ec602d0c107553b91b3434fe9c03474f4 (diff) | |
clk: add DT fixed-clock binding support
Add support for DT "fixed-clock" binding to the common fixed rate clock
support.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
[Rob Herring] Rework and move into common clock infrastructure
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/clk-fixed-rate.c')
| -rw-r--r-- | drivers/clk/clk-fixed-rate.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c index 7e1464569727..f5ec0eebd4d7 100644 --- a/drivers/clk/clk-fixed-rate.c +++ b/drivers/clk/clk-fixed-rate.c @@ -14,6 +14,7 @@ #include <linux/slab.h> #include <linux/io.h> #include <linux/err.h> +#include <linux/of.h> /* * DOC: basic fixed-rate clock that cannot gate @@ -79,3 +80,25 @@ struct clk *clk_register_fixed_rate(struct device *dev, const char *name, return clk; } + +#ifdef CONFIG_OF +/** + * of_fixed_clk_setup() - Setup function for simple fixed rate clock + */ +void __init of_fixed_clk_setup(struct device_node *node) +{ + struct clk *clk; + const char *clk_name = node->name; + u32 rate; + + if (of_property_read_u32(node, "clock-frequency", &rate)) + return; + + of_property_read_string(node, "clock-output-names", &clk_name); + + clk = clk_register_fixed_rate(NULL, clk_name, NULL, CLK_IS_ROOT, rate); + if (clk) + of_clk_add_provider(node, of_clk_src_simple_get, clk); +} +EXPORT_SYMBOL_GPL(of_fixed_clk_setup); +#endif |