[PATCH 6.1.y 1/2] mtd: spi-nor: core: fix implicit declaration warning

[Sasha Levin <sashal@kernel.org>]

From: Zeng Heng <zengheng4@huawei.com>

[ Upstream commit 25e3f30601a368642678744fc8a9b1dce183c7bc ]

spi-nor/core.c needs to include linux/delay.h,
or it would raise below compile warning:

drivers/mtd/spi-nor/core.c: In function ‘spi_nor_soft_reset’:
drivers/mtd/spi-nor/core.c:2779:2: error: implicit declaration of function ‘usleep_range’ [-Werror=implicit-function-declaration]
 2779 |  usleep_range(SPI_NOR_SRST_SLEEP_MIN, SPI_NOR_SRST_SLEEP_MAX);
      |  ^~~~~~~~~~~~

Fixes: d73ee7534cc5 ("mtd: spi-nor: core: perform a Soft Reset on shutdown")
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20220923031457.56103-1-zengheng4@huawei.com
Stable-dep-of: e47029b977e7 ("mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/spi-nor/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index 91622d9c9b032..ea8d0e2cb64da 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -16,6 +16,7 @@
 #include <linux/math64.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
+#include <linux/delay.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/of_platform.h>
-- 
2.53.0