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sh: Add support for multiple hwblk counters

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Extend the SuperH hwblk code to support more than one counter.
Contains ground work for the future Runtime PM implementation.

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
2009-07-17 14:24:55 +00:00
committed by Paul Mundt
parent a61c1a6366
commit 0f8ee1874f
3 changed files with 60 additions and 26 deletions
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13
arch/sh/include/asm/hwblk.h
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@@ -4,6 +4,9 @@
#include <asm/clock.h>
#include <asm/io.h>
#define HWBLK_CNT_USAGE 0
#define HWBLK_CNT_NR 1
#define HWBLK_AREA_FLAG_PARENT (1 << 0) /* valid parent */
#define HWBLK_AREA(_flags, _parent) \
@@ -13,7 +16,7 @@
}
struct hwblk_area {
unsigned long cnt;
int cnt[HWBLK_CNT_NR];
unsigned char parent;
unsigned char flags;
};
@@ -29,7 +32,7 @@ struct hwblk {
void __iomem *mstp;
unsigned char bit;
unsigned char area;
unsigned long cnt;
int cnt[HWBLK_CNT_NR];
};
struct hwblk_info {
@@ -46,6 +49,12 @@ int arch_hwblk_sleep_mode(void);
int hwblk_register(struct hwblk_info *info);
int hwblk_init(void);
void hwblk_enable(struct hwblk_info *info, int hwblk);
void hwblk_disable(struct hwblk_info *info, int hwblk);
void hwblk_cnt_inc(struct hwblk_info *info, int hwblk, int cnt);
void hwblk_cnt_dec(struct hwblk_info *info, int hwblk, int cnt);
/* allow clocks to enable and disable hardware blocks */
#define SH_HWBLK_CLK(_name, _id, _parent, _hwblk, _flags) \
{ \