diff --git a/drivers/iio/adc/rockchip-flexbus-adc.c b/drivers/iio/adc/rockchip-flexbus-adc.c
index d35631970286..092d3b4567e0 100644
--- a/drivers/iio/adc/rockchip-flexbus-adc.c
+++ b/drivers/iio/adc/rockchip-flexbus-adc.c
@@ -340,8 +340,7 @@ static int rockchip_flexbus_adc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, rkfb_adc);
 	rkfb_adc->dev = &pdev->dev;
 	rkfb_adc->rkfb = rkfb;
-	rkfb->fb1_data = rkfb_adc;
-	rkfb->fb1_isr = rockchip_flexbus_adc_isr;
+	rockchip_flexbus_set_fb1(rkfb, rkfb_adc, rockchip_flexbus_adc_isr);
 
 	ret = rockchip_flexbus_adc_parse_dt(rkfb_adc);
 	if (ret != 0)
diff --git a/drivers/iio/dac/rockchip-flexbus-dac.c b/drivers/iio/dac/rockchip-flexbus-dac.c
index 1057bb820efb..eb60114c8fef 100644
--- a/drivers/iio/dac/rockchip-flexbus-dac.c
+++ b/drivers/iio/dac/rockchip-flexbus-dac.c
@@ -358,8 +358,7 @@ static int rockchip_flexbus_dac_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, rkfb_dac);
 	rkfb_dac->dev = &pdev->dev;
 	rkfb_dac->rkfb = rkfb;
-	rkfb->fb0_data = rkfb_dac;
-	rkfb->fb0_isr = rockchip_flexbus_dac_isr;
+	rockchip_flexbus_set_fb0(rkfb, rkfb_dac, rockchip_flexbus_dac_isr);
 
 	ret = rockchip_flexbus_dac_parse_dt(rkfb_dac);
 	if (ret != 0)
diff --git a/drivers/media/platform/rockchip/flexbus_cif/dev.c b/drivers/media/platform/rockchip/flexbus_cif/dev.c
index 9bbd93a6aa66..63e1def01820 100644
--- a/drivers/media/platform/rockchip/flexbus_cif/dev.c
+++ b/drivers/media/platform/rockchip/flexbus_cif/dev.c
@@ -568,8 +568,7 @@ static int flexbus_cif_plat_probe(struct platform_device *pdev)
 		return ret;
 
 	cif_dev->fb_dev = rkfb;
-	rkfb->fb1_data = cif_dev;
-	rkfb->fb1_isr = flexbus_cif_irq_handler;
+	rockchip_flexbus_set_fb1(rkfb, cif_dev, flexbus_cif_irq_handler);
 
 	if (flexbus_cif_proc_init(cif_dev))
 		dev_warn(dev, "dev:%s create proc failed\n", dev_name(dev));
diff --git a/drivers/spi/spi-rockchip-flexbus-fspi.c b/drivers/spi/spi-rockchip-flexbus-fspi.c
index 8a46e079f819..22b12fa6dcfb 100644
--- a/drivers/spi/spi-rockchip-flexbus-fspi.c
+++ b/drivers/spi/spi-rockchip-flexbus-fspi.c
@@ -695,8 +695,7 @@ static int rk_flexbus_fspi_probe(struct platform_device *pdev)
 	fspi->master = master;
 	fspi->fb = flexbus_dev;
 
-	flexbus_dev->fb0_data = fspi;
-	flexbus_dev->fb0_isr = rk_flexbus_fspi_irq_handler;
+	rockchip_flexbus_set_fb0(flexbus_dev, fspi, rk_flexbus_fspi_irq_handler);
 
 	if (has_acpi_companion(&pdev->dev)) {
 		ret = device_property_read_u32(&pdev->dev, "clock-frequency", &val);
diff --git a/include/linux/mfd/rockchip-flexbus.h b/include/linux/mfd/rockchip-flexbus.h
index e2c23c7cbb25..962fa9b42ced 100644
--- a/include/linux/mfd/rockchip-flexbus.h
+++ b/include/linux/mfd/rockchip-flexbus.h
@@ -147,6 +147,20 @@ struct rockchip_flexbus {
 	const struct rockchip_flexbus_config	*config;
 };
 
+static inline void rockchip_flexbus_set_fb0(struct rockchip_flexbus *rkfb, void *fb0_data,
+					    void (*fb0_isr)(struct rockchip_flexbus *rkfb, u32 isr))
+{
+	rkfb->fb0_data = fb0_data;
+	rkfb->fb0_isr = fb0_isr;
+}
+
+static inline void rockchip_flexbus_set_fb1(struct rockchip_flexbus *rkfb, void *fb1_data,
+					    void (*fb1_isr)(struct rockchip_flexbus *rkfb, u32 isr))
+{
+	rkfb->fb1_data = fb1_data;
+	rkfb->fb1_isr = fb1_isr;
+}
+
 unsigned int rockchip_flexbus_readl(struct rockchip_flexbus *rkfb, unsigned int reg);
 void rockchip_flexbus_writel(struct rockchip_flexbus *rkfb, unsigned int reg, unsigned int val);
 void rockchip_flexbus_clrbits(struct rockchip_flexbus *rkfb, unsigned int reg,