regulator: of: fix suspend-min/max-voltage parsing

[ Upstream commit 131cb1210d4b58acb0695707dad2eb90dcb50a2a ]

Currently the regulator-suspend-min/max-microvolt must be within the
root regulator node but the dt-bindings specifies it as subnode
properties for the regulator-state-[mem/disk/standby] node. The only DT
using this bindings currently is the at91-sama5d2_xplained.dts and this
DT uses it correctly. I don't know if it isn't tested but it can't work
without this fix.

Fixes: f7efad10b5c4 ("regulator: add PM suspend and resume hooks")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20190917154021.14693-3-m.felsch@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 210fc20..b255590 100644 (file)
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -214,12 +214,12 @@ static void of_get_regulation_constraints(struct device_node *np,
                                        "regulator-off-in-suspend"))
                        suspend_state->enabled = DISABLE_IN_SUSPEND;
 
-               if (!of_property_read_u32(np, "regulator-suspend-min-microvolt",
-                                         &pval))
+               if (!of_property_read_u32(suspend_np,
+                               "regulator-suspend-min-microvolt", &pval))
                        suspend_state->min_uV = pval;
 
-               if (!of_property_read_u32(np, "regulator-suspend-max-microvolt",
-                                         &pval))
+               if (!of_property_read_u32(suspend_np,
+                               "regulator-suspend-max-microvolt", &pval))
                        suspend_state->max_uV = pval;
 
                if (!of_property_read_u32(suspend_np,