diff --git a/drivers/staging/hikey9xx/hi6421-spmi-pmic.c b/drivers/staging/hikey9xx/hi6421-spmi-pmic.c
index c7d431daa406..9c36af4a6a72 100644
--- a/drivers/staging/hikey9xx/hi6421-spmi-pmic.c
+++ b/drivers/staging/hikey9xx/hi6421-spmi-pmic.c
@@ -187,10 +187,10 @@ static void hi6421_spmi_pmic_irq_init(struct hi6421_spmi_pmic *ddata)
 }
 
 static const struct regmap_config regmap_config = {
-	.reg_bits		= 16,
-	.val_bits		= HISI_BITS,
-	.max_register		= 0xffff,
-	.fast_io		= true
+	.reg_bits	= 16,
+	.val_bits	= BITS_PER_BYTE,
+	.max_register	= 0xffff,
+	.fast_io	= true
 };
 
 static int hi6421_spmi_pmic_probe(struct spmi_device *pdev)