From 89521ea57b2a008c9ded9d3bebc6ff844f841eb9 Mon Sep 17 00:00:00 2001
From: Joseph Chen <chenjh@rock-chips.com>
Date: Fri, 8 Nov 2024 14:31:19 +0800
Subject: [PATCH] ARM: dts: rockchip: rk3502-evb1-v10: Add suspend io config

Set these gpios to right state for system low power.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I8e030a872209f9955834aab008b8059f4fb2d507
---
 arch/arm/boot/dts/rk3502-evb1-v10.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/rk3502-evb1-v10.dtsi b/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
index 8f4e57790602..54979e626dce 100644
--- a/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
+++ b/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
@@ -410,6 +410,17 @@
 		| RKPM_PWREN_SLEEP_GPIO0A0 | RKPM_PWREN_SLEEP_ACT_LOW
 		)
 	>;
+
+#define GPIO0_IOC_GPIO0A_PULL_REG	0xff950200
+#define GPIO0_IOC_GPIO0C_PULL_REG	0xff950208
+#define GPIO0A3_PULL_DOWN		0x00c00080
+#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 */
+	>;
 };
 
 &sai1 {