mfd: ab8500-core: Allow the possibility to dump all AB8500 registers

Implement an API so that a user may dump all AB8500 registers
via debugfs file access.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Reviewed-by: Linus WALLEIJ <linus.walleij@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index cd3cee814fb7..af6f774e658a 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -581,6 +581,19 @@ static int ab8500_print_all_banks(struct seq_file *s, void *p)
         return 0;
 }
 
+/* Dump registers to kernel log */
+void ab8500_dump_all_banks(struct device *dev)
+{
+        unsigned int i;
+
+        printk(KERN_INFO"ab8500 register values:\n");
+
+        for (i = 1; i < AB8500_NUM_BANKS; i++) {
+                printk(KERN_INFO" bank %u:\n", i);
+                ab8500_registers_print(dev, i, NULL);
+        }
+}
+
 static int ab8500_all_banks_open(struct inode *inode, struct file *file)
 {
         struct seq_file *s;