Re: [PATCH 01/10] video: exynos_dp: Change aux transaction failures

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On Wednesday, August 08, 2012 12:54 PM Sean Paul wrote:
> 
> This patch adds the function name to aux transaction failure messages
> so we can tell which transaction is failing. It also changes the level
> of Aux Transaction fail messages from error to debug. We retry the
> transactions a few times and will report errors if warranted outside of
> this function.
> 
> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
> Reviewed-by: Doug Anderson <dianders@xxxxxxxxxxxx>
> Reviewed-by: Bernie Thompson <bhthompson@xxxxxxxxxxxx>
> ---


Acked-by: Jingoo Han <jg1.han@xxxxxxxxxxx>

It looks good.



>  drivers/video/exynos/exynos_dp_reg.c |   21 ++++++++++++++-------
>  1 files changed, 14 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/video/exynos/exynos_dp_reg.c b/drivers/video/exynos/exynos_dp_reg.c
> index ce401c8..a121bed 100644
> --- a/drivers/video/exynos/exynos_dp_reg.c
> +++ b/drivers/video/exynos/exynos_dp_reg.c
> @@ -471,7 +471,8 @@ int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
>  		if (retval == 0)
>  			break;
>  		else
> -			dev_err(dp->dev, "Aux Transaction fail!\n");
> +			dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
> +				__func__);
>  	}
> 
>  	return retval;
> @@ -511,7 +512,8 @@ int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
>  		if (retval == 0)
>  			break;
>  		else
> -			dev_err(dp->dev, "Aux Transaction fail!\n");
> +			dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
> +				__func__);
>  	}
> 
>  	/* Read data buffer */
> @@ -575,7 +577,8 @@ int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
>  			if (retval == 0)
>  				break;
>  			else
> -				dev_err(dp->dev, "Aux Transaction fail!\n");
> +				dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
> +					__func__);
>  		}
> 
>  		start_offset += cur_data_count;
> @@ -632,7 +635,8 @@ int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
>  			if (retval == 0)
>  				break;
>  			else
> -				dev_err(dp->dev, "Aux Transaction fail!\n");
> +				dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
> +					__func__);
>  		}
> 
>  		for (cur_data_idx = 0; cur_data_idx < cur_data_count;
> @@ -677,7 +681,7 @@ int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
>  	/* Start AUX transaction */
>  	retval = exynos_dp_start_aux_transaction(dp);
>  	if (retval != 0)
> -		dev_err(dp->dev, "Aux Transaction fail!\n");
> +		dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
> 
>  	return retval;
>  }
> @@ -717,7 +721,8 @@ int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
>  		if (retval == 0)
>  			break;
>  		else
> -			dev_err(dp->dev, "Aux Transaction fail!\n");
> +			dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
> +				__func__);
>  	}
> 
>  	/* Read data */
> @@ -777,7 +782,9 @@ int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
>  				if (retval == 0)
>  					break;
>  				else
> -					dev_err(dp->dev, "Aux Transaction fail!\n");
> +					dev_dbg(dp->dev,
> +						"%s: Aux Transaction fail!\n",
> +						__func__);
>  			}
>  			/* Check if Rx sends defer */
>  			reg = readl(dp->reg_base + EXYNOS_DP_AUX_RX_COMM);
> --
> 1.7.7.3

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