debugfs: add tools to printk 32-bit registers
Some debugfs file I deal with are mostly blocks of registers,
i.e. lines of the form "<name> = 0x<value>". Some files are only
registers, some include registers blocks among other material. This
patch introduces data structures and functions to deal with both
cases. I expect more users of this over time.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index e7d9b20..5e6b01f 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -16,6 +16,7 @@
#define _DEBUGFS_H_
#include <linux/fs.h>
+#include <linux/seq_file.h>
#include <linux/types.h>
@@ -26,6 +27,17 @@
unsigned long size;
};
+struct debugfs_reg32 {
+ char *name;
+ unsigned long offset;
+};
+
+struct debugfs_regset32 {
+ struct debugfs_reg32 *regs;
+ int nregs;
+ void __iomem *base;
+};
+
extern struct dentry *arch_debugfs_dir;
#if defined(CONFIG_DEBUG_FS)
@@ -74,6 +86,13 @@
struct dentry *parent,
struct debugfs_blob_wrapper *blob);
+struct dentry *debugfs_create_regset32(const char *name, mode_t mode,
+ struct dentry *parent,
+ struct debugfs_regset32 *regset);
+
+int debugfs_print_regs32(struct seq_file *s, struct debugfs_reg32 *regs,
+ int nregs, void __iomem *base, char *prefix);
+
bool debugfs_initialized(void);
#else
@@ -188,6 +207,13 @@
return ERR_PTR(-ENODEV);
}
+static inline struct dentry *debugfs_create_regset32(const char *name,
+ mode_t mode, struct dentry *parent,
+ struct debugfs_regset32 *regset)
+{
+ return ERR_PTR(-ENODEV);
+}
+
static inline bool debugfs_initialized(void)
{
return false;