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@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, ®); - 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;