[PATCH V2] pmdomain: rockchip: quiet regulator error on -EPROBE_DEFER

[Chris Morgan <macroalpha82@gmail.com>]

From: Chris Morgan <macromorgan@hotmail.com>

Change the dev_err() to dev_err_probe() under rockchip_pd_power_on()
to prevent errors early in the boot process when the requested
regulator is not yet available. This converts errors like the following
to debug messages:

rockchip-pm-domain fd8d8000.power-management:power-controller: Failed to enable supply: -517

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Tested-by: Diederik de Haas <diederik@cknow-tech.com>
---
Changes since v1:
 - Simplified return to single line
---
 drivers/pmdomain/rockchip/pm-domains.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/pmdomain/rockchip/pm-domains.c b/drivers/pmdomain/rockchip/pm-domains.c
index 997e93c12951..6d3fb18f4ab3 100644
--- a/drivers/pmdomain/rockchip/pm-domains.c
+++ b/drivers/pmdomain/rockchip/pm-domains.c
@@ -705,10 +705,9 @@ static int rockchip_pd_power_on(struct generic_pm_domain *domain)
 	int ret;
 
 	ret = rockchip_pd_regulator_enable(pd);
-	if (ret) {
-		dev_err(pd->pmu->dev, "Failed to enable supply: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(pd->pmu->dev, ret,
+				     "Failed to enable supply: %d\n", ret);
 
 	ret = rockchip_pd_power(pd, true);
 	if (ret)
-- 
2.43.0