diff --git a/arch/arm/boot/dts/rk3502-evb1-v10.dtsi b/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
index 54979e626dce..c789d3c966de 100644
--- a/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
+++ b/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
@@ -412,14 +412,17 @@
 	>;
 
 #define GPIO0_IOC_GPIO0A_PULL_REG	0xff950200
+#define GPIO0_IOC_GPIO0B_PULL_REG	0xff950204
 #define GPIO0_IOC_GPIO0C_PULL_REG	0xff950208
 #define GPIO0A3_PULL_DOWN		0x00c00080
+#define GPIO0B0_PULL_DOWN		0x00030002
 #define GPIO0C5_PULL_DOWN		0x0c000800
 
 	/* Note: support max 16 pairs */
 	rockchip,sleep-io-config = <
 		GPIO0_IOC_GPIO0C_PULL_REG GPIO0C5_PULL_DOWN /* PWM0_CH0_CPU */
 		GPIO0_IOC_GPIO0A_PULL_REG GPIO0A3_PULL_DOWN /* PWM0_CH2_LCD_BL */
+		GPIO0_IOC_GPIO0B_PULL_REG GPIO0B0_PULL_DOWN /* SAI1_MCLK */
 	>;
 };