[PATCH v2 1/5] rockchip: io-domain: Add debug logging for regulators during probe

[Justin Klaassen]

Log the value of the regulators during initialization of the IO-domain
driver to aid in debugging GPIO voltage configuration problems.

Signed-off-by: Justin Klaassen <justin at tidylabs.net>
---

Changes in v2:
- Made added IO-domain driver logs verbose and consistent

 drivers/misc/rockchip-io-domain.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/rockchip-io-domain.c b/drivers/misc/rockchip-io-domain.c
index 025b6049a9f..fdefc9c5fe3 100644
--- a/drivers/misc/rockchip-io-domain.c
+++ b/drivers/misc/rockchip-io-domain.c
@@ -5,6 +5,8 @@
  * Ported from linux drivers/soc/rockchip/io-domain.c
  */
 
+#define LOG_CATEGORY UCLASS_NOP
+
 #include <dm.h>
 #include <dm/device_compat.h>
 #include <regmap.h>
@@ -344,8 +346,10 @@ static int rockchip_iodomain_probe(struct udevice *dev)
 			continue;
 
 		ret = device_get_supply_regulator(dev, supply_name, &reg);
-		if (ret)
+		if (ret) {
+			log_debug("%s: Regulator not found\n", supply_name);
 			continue;
+		}
 
 		ret = regulator_autoset(reg);
 		if (ret && ret != -EALREADY && ret != -EMEDIUMTYPE &&
@@ -353,6 +357,7 @@ static int rockchip_iodomain_probe(struct udevice *dev)
 			continue;
 
 		uV = regulator_get_value(reg);
+		log_debug("%s: Regulator %s at %d uV\n", supply_name, reg->name, uV);
 		if (uV <= 0)
 			continue;
 
-- 
2.45.3