regulator: tps65910: dt: support when "regulators" node found

The device tree binding for the tps65910 is described as:
	tps65911 {
		reg = <0x2d>
		:::::::::
		regulators {
			compatible = "ti,tps65911";
			ldo1_reg: ldo1 {
				/** regulator entry */
			};

			ldo2_reg: ldo2 {
				/** regulator entry */
			};
			::::::::::
		};
	};

Support the regulators functionality only when there is "regulators"
child node available for tps65910.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 11af48e7186a..8b31f073c6f3 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -1090,6 +1090,10 @@ static struct tps65910_board *tps65910_parse_dt_reg_data(
         }
 
         regulators = of_find_node_by_name(np, "regulators");
+        if (!regulators) {
+                dev_err(&pdev->dev, "regulator node not found\n");
+                return NULL;
+        }
 
         switch (tps65910_chip_id(tps65910)) {
         case TPS65910: