linux-kernel - Re: [PATCH v2] mmc: meson-gx: Remove setting of CMD_CFG

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Message-ID: <CAPDyKFr_NkZYEHN-9BPTQT1K9nMA30_vyry-6pz+G_iAw4uB0g@mail.gmail.com>
Date:   Fri, 27 Oct 2023 12:02:31 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     "Rong.Chen" <rong.chen@...ogic.com>
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        linux-mmc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mmc: meson-gx: Remove setting of CMD_CFG_ERROR

On Thu, 26 Oct 2023 at 09:32, Rong.Chen <rong.chen@...ogic.com> wrote:
>
> From: Rong Chen <rong.chen@...ogic.com>
>
> For the t7 and older SoC families, the CMD_CFG_ERROR has no effect.
> Starting from SoC family C3, setting this bit without SG LINK data
> address will cause the controller to generate an IRQ and stop working.
>
> To fix it, don't set the bit CMD_CFG_ERROR anymore.
>
> Fixes: 18f92bc02f17 ("mmc: meson-gx: make sure the descriptor is stopped on errors")
> Signed-off-by: Rong Chen <rong.chen@...ogic.com>

Applied for fixes and by adding a stable tag, thanks!

Kind regards
Uffe

> ---
>  drivers/mmc/host/meson-gx-mmc.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
> index 9837dab096e6..c7c067b9415a 100644
> --- a/drivers/mmc/host/meson-gx-mmc.c
> +++ b/drivers/mmc/host/meson-gx-mmc.c
> @@ -801,7 +801,6 @@ static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd)
>
>         cmd_cfg |= FIELD_PREP(CMD_CFG_CMD_INDEX_MASK, cmd->opcode);
>         cmd_cfg |= CMD_CFG_OWNER;  /* owned by CPU */
> -       cmd_cfg |= CMD_CFG_ERROR; /* stop in case of error */
>
>         meson_mmc_set_response_bits(cmd, &cmd_cfg);
>
> --
> 2.42.0
>