linux-kernel - Re: [PATCH v2 1/4] i2c: i801: remove printout on handled timeouts

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Date: Thu, 25 Apr 2024 17:45:49 +0200
From: Jean Delvare <jdelvare@...e.de>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc: linux-i2c@...r.kernel.org, Andi Shyti <andi.shyti@...nel.org>,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/4] i2c: i801: remove printout on handled timeouts

On Tue, 23 Apr 2024 14:13:18 +0200, Wolfram Sang wrote:
> I2C and SMBus timeouts are not something the user needs to be informed
> about on controller level. The client driver may know if that really is
> a problem and give more detailed information to the user. The controller
> should just pass this information upwards. Remove the printout and turn
> the SMBus-specific termination message to debug.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
> ---
>  drivers/i2c/busses/i2c-i801.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
> index e577abc776c1..d2d2a6dbe29f 100644
> --- a/drivers/i2c/busses/i2c-i801.c
> +++ b/drivers/i2c/busses/i2c-i801.c
> @@ -399,9 +399,7 @@ static int i801_check_post(struct i801_priv *priv, int status)
>  	 * If the SMBus is still busy, we give up
>  	 */
>  	if (unlikely(status < 0)) {
> -		dev_err(&priv->pci_dev->dev, "Transaction timeout\n");
>  		/* try to stop the current command */
> -		dev_dbg(&priv->pci_dev->dev, "Terminating the current operation\n");
>  		outb_p(SMBHSTCNT_KILL, SMBHSTCNT(priv));
>  		usleep_range(1000, 2000);
>  		outb_p(0, SMBHSTCNT(priv));
> @@ -410,7 +408,7 @@ static int i801_check_post(struct i801_priv *priv, int status)
>  		status = inb_p(SMBHSTSTS(priv));
>  		if ((status & SMBHSTSTS_HOST_BUSY) ||
>  		    !(status & SMBHSTSTS_FAILED))
> -			dev_err(&priv->pci_dev->dev,
> +			dev_dbg(&priv->pci_dev->dev,
>  				"Failed terminating the transaction\n");
>  		return -ETIMEDOUT;
>  	}

Reviewed-by: Jean Delvare <jdelvare@...e.de>

-- 
Jean Delvare
SUSE L3 Support