diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index e449823ef282..ea01cd0371cd 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2041,6 +2041,32 @@ static void rk1808_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
 	*bit *= RK1808_DRV_BITS_PER_PIN;
 }
 
+#define RK1808_SR_PMU_OFFSET		0x0030
+#define RK1808_SR_GRF_OFFSET		0x00c0
+#define RK1808_SR_BANK_STRIDE		16
+#define RK1808_SR_PINS_PER_REG		8
+
+static int rk1808_calc_slew_rate_reg_and_bit(struct rockchip_pin_bank *bank,
+					   int pin_num,
+					   struct regmap **regmap,
+					   int *reg, u8 *bit)
+{
+	struct rockchip_pinctrl *info = bank->drvdata;
+
+	if (bank->bank_num == 0) {
+		*regmap = info->regmap_pmu;
+		*reg = RK1808_SR_PMU_OFFSET;
+	} else {
+		*regmap = info->regmap_base;
+		*reg = RK1808_SR_GRF_OFFSET;
+		*reg += (bank->bank_num  - 1) * RK1808_SR_BANK_STRIDE;
+	}
+	*reg += ((pin_num / RK1808_SR_PINS_PER_REG) * 4);
+	*bit = pin_num % RK1808_SR_PINS_PER_REG;
+
+	return 0;
+}
+
 #define RK1808_SCHMITT_PMU_OFFSET		0x0040
 #define RK1808_SCHMITT_GRF_OFFSET		0x0100
 #define RK1808_SCHMITT_BANK_STRIDE		16
@@ -4410,6 +4436,7 @@ static struct rockchip_pin_ctrl rk1808_pin_ctrl = {
 	.pull_calc_reg		= rk1808_calc_pull_reg_and_bit,
 	.drv_calc_reg		= rk1808_calc_drv_reg_and_bit,
 	.schmitt_calc_reg	= rk1808_calc_schmitt_reg_and_bit,
+	.slew_rate_calc_reg	= rk1808_calc_slew_rate_reg_and_bit,
 };
 
 static struct rockchip_pin_bank rk2928_pin_banks[] = {