s3cmci: add debugfs support for examining driver and hardware state
Export driver state and hardware register state via debugfs entries
created under a directory formed from dev_name() on the probed device when
CONFIG_DEBUG_FS is set.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/mmc/host/s3cmci.h b/drivers/mmc/host/s3cmci.h
index ca1ba3d..fc96194 100644
--- a/drivers/mmc/host/s3cmci.h
+++ b/drivers/mmc/host/s3cmci.h
@@ -68,6 +68,12 @@
unsigned int ccnt, dcnt;
struct tasklet_struct pio_tasklet;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *debug_root;
+ struct dentry *debug_state;
+ struct dentry *debug_regs;
+#endif
+
#ifdef CONFIG_CPU_FREQ
struct notifier_block freq_transition;
#endif