diff --git a/drivers/amlogic/media/enhancement/amvecm/amvecm.c b/drivers/amlogic/media/enhancement/amvecm/amvecm.c
index acb7012dd8aa..47a39195beb9 100644
--- a/drivers/amlogic/media/enhancement/amvecm/amvecm.c
+++ b/drivers/amlogic/media/enhancement/amvecm/amvecm.c
@@ -2778,6 +2778,8 @@ static ssize_t set_gamma_pattern_show(struct class *cla,
 	pr_info("8bit: echo r g b > /sys/class/amvecm/gamma_pattern\n");
 	pr_info("10bit: echo r g b 0xa > /sys/class/amvecm/gamma_pattern\n");
 	pr_info("	r g b should be hex\n");
+	pr_info("disable gamma pattern:\n");
+	pr_info("echo disable > /sys/class/amvecm/gamma_pattern\n");
 	return 0;
 }
 
@@ -2807,6 +2809,14 @@ static ssize_t set_gamma_pattern_store(struct class *cls,
 		parm[n++] = token;
 	}
 
+	if (!strcmp(parm[0], "disable")) {
+		vecm_latch_flag |= FLAG_GAMMA_TABLE_R;
+		vecm_latch_flag |= FLAG_GAMMA_TABLE_G;
+		vecm_latch_flag |= FLAG_GAMMA_TABLE_B;
+		kfree(buf_orig);
+		return count;
+	}
+
 	if (*(parm + 3) != NULL) {
 		if (kstrtol(parm[3], 16, &val) < 0) {
 			kfree(buf_orig);