diff --git a/target/linux/mediatek/patches-5.4/0931-pwm-add-mt7981-support.patch b/target/linux/mediatek/patches-5.4/0931-pwm-add-mt7981-support.patch
index b926383..0de7966 100644
--- a/target/linux/mediatek/patches-5.4/0931-pwm-add-mt7981-support.patch
+++ b/target/linux/mediatek/patches-5.4/0931-pwm-add-mt7981-support.patch
@@ -113,7 +113,7 @@
  static const struct pwm_mediatek_of_data mt7986_pwm_data = {
  	.num_pwms = 2,
  	.pwm45_fixup = false,
-+	.reg_ver = REG_V2,
++	.reg_ver = REG_V1,
  };
  
  static const struct pwm_mediatek_of_data mt8516_pwm_data = {