[PATCH v2] mmc: meson-gx: Remove setting of CMD_CFG_ERROR

[PATCH v2] mmc: meson-gx: Remove setting of CMD_CFG_ERROR

[Rong.Chen]

From: Rong Chen <rong.chen@amlogic.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@amlogic.com>
---
 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


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Re: [PATCH v2] mmc: meson-gx: Remove setting of CMD_CFG_ERROR

[Jerome Brunet]

On Thu 26 Oct 2023 at 15:31, "Rong.Chen" <rong.chen@amlogic.com> wrote:

> From: Rong Chen <rong.chen@amlogic.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@amlogic.com>
> ---
>  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);

Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>

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Re: [PATCH v2] mmc: meson-gx: Remove setting of CMD_CFG_ERROR

[Ulf Hansson]

On Thu, 26 Oct 2023 at 09:32, Rong.Chen <rong.chen@amlogic.com> wrote:
>
> From: Rong Chen <rong.chen@amlogic.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@amlogic.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
>

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