sh: Add support for multiple hwblk counters
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>
diff --git a/arch/sh/include/asm/hwblk.h b/arch/sh/include/asm/hwblk.h
index 51a46f4..c01d72c 100644
--- a/arch/sh/include/asm/hwblk.h
+++ b/arch/sh/include/asm/hwblk.h
@@ -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 @@
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 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) \
{ \