From 3fc882df9e92216970cc186e6eb06a1bfbdc73a3 Mon Sep 17 00:00:00 2001
From: Xiang Xiao <xiaoxiang@xiaomi.com>
Date: Mon, 1 May 2023 02:22:02 +0800
Subject: [PATCH] mtd/nand: Implement MTDIOC_ERASESTATE ioctl

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
---
 drivers/mtd/mtd_nand.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mtd/mtd_nand.c b/drivers/mtd/mtd_nand.c
index 0335acea0ab..c7ed7358024 100644
--- a/drivers/mtd/mtd_nand.c
+++ b/drivers/mtd/mtd_nand.c
@@ -790,6 +790,14 @@ static int nand_ioctl(FAR struct mtd_dev_s *dev, int cmd, unsigned long arg)
         }
         break;
 
+      case MTDIOC_ERASESTATE:
+        {
+          FAR uint8_t *result = (FAR uint8_t *)arg;
+          *result = 0xff;
+          ret = OK;
+        }
+        break;
+
       default:
         ret = -ENOTTY; /* Bad command */
         break;