regulator: ab8500: Init debug from regulator driver

The purpose of this patch is to guarantee that ab8500-debug will
record the regulator registers before they are modified by the
ab8500 regulator driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

2 files changed, 24 insertions, 0 deletions

diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index 4d88a604efd1..bf34c4cd6631 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -911,6 +911,11 @@ static int ab8500_regulator_probe(struct platform_device *pdev)
                 return -EINVAL;
         }
 
+        /* initialize debug (initial state is recorded with this call) */
+        err = ab8500_regulator_debug_init(pdev);
+        if (err)
+                return err;
+
         /* initialize registers */
         for (i = 0; i < pdata->num_reg_init; i++) {
                 int id, mask, value;
@@ -961,6 +966,11 @@ static int ab8500_regulator_remove(struct platform_device *pdev)
         if (err)
                 return err;
 
+        /* remove regulator debug */
+        err = ab8500_regulator_debug_exit(pdev);
+        if (err)
+                return err;
+
         return 0;
 }
 
diff --git a/include/linux/regulator/ab8500.h b/include/linux/regulator/ab8500.h
index b86e089195ea..592a3f3994c0 100644
--- a/include/linux/regulator/ab8500.h
+++ b/include/linux/regulator/ab8500.h
@@ -178,4 +178,18 @@ inline int ab8500_ext_regulator_exit(struct platform_device *pdev)
 }
 #endif
 
+#ifdef CONFIG_REGULATOR_AB8500_DEBUG
+int ab8500_regulator_debug_init(struct platform_device *pdev);
+int ab8500_regulator_debug_exit(struct platform_device *pdev);
+#else
+static inline int ab8500_regulator_debug_init(struct platform_device *pdev)
+{
+        return 0;
+}
+static inline int ab8500_regulator_debug_exit(struct platform_device *pdev)
+{
+        return 0;
+}
+#endif
+
 #endif