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Date:   Thu, 12 Oct 2023 11:11:09 +0200
From:   Michael Walle <michael@walle.cc>
To:     Md Sadre Alam <quic_mdalam@quicinc.com>
Cc:     tudor.ambarus@linaro.org, pratyush@kernel.org,
        miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com,
        linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
        quic_srichara@quicinc.com, quic_varada@quicinc.com
Subject: Re: [PATCH] mtd: spi-nor: Ensure operation completion before shutdown
In-Reply-To: <20231012055148.2445303-1-quic_mdalam@quicinc.com>
References: <20231012055148.2445303-1-quic_mdalam@quicinc.com>
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Hi,

Am 2023-10-12 07:51, schrieb Md Sadre Alam:
> Ensure that there are no pending spi operation inprogress
> when system halts.

What operation might be in progress here? Did you encounter some 
problems?
Please explain it in more detail in the commit message.

Fixes tag?

-michael

> Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
> ---
>  drivers/mtd/spi-nor/core.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
> index 1c443fe568cf..adc4d2c68695 100644
> --- a/drivers/mtd/spi-nor/core.c
> +++ b/drivers/mtd/spi-nor/core.c
> @@ -3690,6 +3690,9 @@ static void spi_nor_shutdown(struct spi_mem 
> *spimem)
>  {
>  	struct spi_nor *nor = spi_mem_get_drvdata(spimem);
> 
> +	/* Ensure no pending spi operation in progress */
> +	spi_nor_wait_till_ready(nor);
> +
>  	spi_nor_restore(nor);
>  }