clk: implement power state and engine clock control in core

User control of this has been hard-coded as disabled for now.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 24 insertions, 3 deletions

diff --git a/lib/core/os.h b/lib/core/os.h
index 7f23f9ad0..08934bd40 100644
--- a/lib/core/os.h
+++ b/lib/core/os.h
@@ -226,10 +226,34 @@ struct kref {
  * string
  *****************************************************************************/
 #include <string.h>
+#include <stdlib.h>
+#include <errno.h>
 
 #define kstrdup(a,b) strdup((a))
 #define kstrndup(a,b,c) strndup((a), (b))
 
+static inline int
+kstrtol(const char *s, unsigned int base, long *res)
+{
+	*res = strtol(s, NULL, base);
+	if (errno && *res == LONG_MAX)
+		return errno;
+	if (errno && *res == 0)
+		return errno;
+	return 0;
+}
+
+static inline int
+kstrtoul(const char *s, unsigned int base, unsigned long *res)
+{
+	*res = strtoul(s, NULL, base);
+	if (errno && *res == ULONG_MAX)
+		return errno;
+	if (errno && *res == 0)
+		return errno;
+	return 0;
+}
+
 /******************************************************************************
  * printk
  *****************************************************************************/
@@ -249,8 +273,6 @@ struct kref {
 /******************************************************************************
  * memory
  *****************************************************************************/
-#include <stdlib.h>
-
 #define GFP_KERNEL 1
 #define __GFP_ZERO 2
 #define GFP_DMA32  4
@@ -293,7 +315,6 @@ __free_page(struct page *page)
 /******************************************************************************
  * assertions
  *****************************************************************************/
-#include <errno.h>
 #include <assert.h>
 #include <execinfo.h>