linux-kernel - Re: [PATCH 1/1] mmc: sdhci: Fixed too many logs being printed during tuning

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Date:   Wed, 16 Nov 2022 16:20:51 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Wenchao Chen <wenchao.chen666@...il.com>
Cc:     adrian.hunter@...el.com, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org, megoo.tang@...il.com,
        lzx.stg@...il.com
Subject: Re: [PATCH 1/1] mmc: sdhci: Fixed too many logs being printed during tuning

On Fri, 11 Nov 2022 at 09:42, Wenchao Chen <wenchao.chen666@...il.com> wrote:
>
> From: Wenchao Chen <wenchao.chen@...soc.com>
>
> During the HS200 tuning process, too many tuning errors are printed in
> the log.
>
> Signed-off-by: Wenchao Chen <wenchao.chen@...soc.com>
> ---
>  drivers/mmc/host/sdhci.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index fef03de85b99..a503b54305eb 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -3401,6 +3401,10 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
>                 if (host->pending_reset)
>                         return;
>
> +               command = SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND));
> +               if (command == MMC_SEND_TUNING_BLOCK || command == MMC_SEND_TUNING_BLOCK_HS200)
> +                       return;
> +

Please use mmc_op_tuning() instead of open-coding this. I also need an
ack from Adrian to apply this.

>                 pr_err("%s: Got data interrupt 0x%08x even though no data operation was in progress.\n",
>                        mmc_hostname(host->mmc), (unsigned)intmask);
>                 sdhci_err_stats_inc(host, UNEXPECTED_IRQ);
> --
> 2.17.1
>

Kind regards
Uffe