summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorLee Jones <lee.jones@linaro.org>2013-03-28 16:11:09 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-03-29 17:50:35 +0000
commitda0b0c47dcfd92317e2ece4c3434e1f82b55cf8a (patch)
tree5791e6422c9506a66bd66e6c17e81e470fd8e548
parent41a06aa738ad889cf96f56024ddf84ecf4a18a6f (diff)
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>
-rw-r--r--drivers/regulator/ab8500.c10
-rw-r--r--include/linux/regulator/ab8500.h14
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