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sh: Introduce clk_always_enable() function

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Add SuperH specific funcion clk_always_enable(), useful to enable MSTPCR
bits in processor or board specific code.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2008-07-17 19:09:51 +09:00 committed by Paul Mundt
parent 152fe36ebe
commit de9254263b
1 changed files with 17 additions and 0 deletions
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17
include/asm-sh/clock.h
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@ -5,6 +5,7 @@
#include <linux/list.h>
#include <linux/seq_file.h>
#include <linux/clk.h>
#include <linux/err.h>
struct clk;
@ -47,6 +48,22 @@ void clk_recalc_rate(struct clk *);
int clk_register(struct clk *);
void clk_unregister(struct clk *);
static inline int clk_always_enable(const char *id)
{
struct clk *clk;
int ret;
clk = clk_get(NULL, id);
if (IS_ERR(clk))
return PTR_ERR(clk);
ret = clk_enable(clk);
if (ret)
clk_put(clk);
return ret;
}
/* the exported API, in addition to clk_set_rate */
/**
* clk_set_rate_ex - set the clock rate for a clock source, with additional parameter