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dm: clk: Add support for of-platdata

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Add support for this feature in the core clock code.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-07-04 11:58:03 -06:00
parent f24770d812
commit 7423daa60e
3 changed files with 26 additions and 2 deletions
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22
drivers/clk/clk-uclass.c
View file

@ -10,6 +10,7 @@
#include <clk.h>
#include <clk-uclass.h>
#include <dm.h>
#include <dt-structs.h>
#include <errno.h>
DECLARE_GLOBAL_DATA_PTR;
@ -21,6 +22,22 @@ static inline struct clk_ops *clk_dev_ops(struct udevice *dev)
#if CONFIG_IS_ENABLED(OF_CONTROL)
#ifdef CONFIG_SPL_BUILD
# if CONFIG_IS_ENABLED(OF_PLATDATA)
int clk_get_by_index_platdata(struct udevice *dev, int index,
struct phandle_2_cell *cells, struct clk *clk)
{
int ret;
if (index != 0)
return -ENOSYS;
ret = uclass_get_device(UCLASS_CLK, 0, &clk->dev);
if (ret)
return ret;
clk->id = cells[0].id;
return 0;
}
# else
int clk_get_by_index(struct udevice *dev, int index, struct clk *clk)
{
int ret;
@ -39,6 +56,7 @@ int clk_get_by_index(struct udevice *dev, int index, struct clk *clk)
clk->id = cell[1];
return 0;
}
# endif /* OF_PLATDATA */
int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk)
{
@ -117,8 +135,8 @@ int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk)
return clk_get_by_index(dev, index, clk);
}
#endif
#endif
#endif /* CONFIG_SPL_BUILD */
#endif /* OF_CONTROL */
int clk_request(struct udevice *dev, struct clk *clk)
{

2
drivers/clk/clk_fixed_rate.c
View file

@ -30,9 +30,11 @@ const struct clk_ops clk_fixed_rate_ops = {
static int clk_fixed_rate_ofdata_to_platdata(struct udevice *dev)
{
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
to_clk_fixed_rate(dev)->fixed_rate =
fdtdec_get_int(gd->fdt_blob, dev->of_offset,
"clock-frequency", 0);
#endif
return 0;
}

4
include/clk.h
View file

@ -60,6 +60,10 @@ struct clk {
};
#if CONFIG_IS_ENABLED(OF_CONTROL)
struct phandle_2_cell;
int clk_get_by_index_platdata(struct udevice *dev, int index,
struct phandle_2_cell *cells, struct clk *clk);
/**
* clock_get_by_index - Get/request a clock by integer index.
*