[Intel-gfx] [PATCH] drm/scdc-helper: Convert errors into debug messages

[Sharma, Shashank]

Reviewed-by: Shashank Sharma <shashank.sharma at intel.com>

Regards
Shashank
On 3/23/2018 11:55 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Since we may attempt to reconfigure SCDC when the sink has already been
> disconnected we probably shouldn't scare the user with errors in dmesg
> that are 100% expected in that case. Just leave it up to the caller
> whether to print an error message or not, and just output debug
> messages from the helper itself.
>
> Cc: Shashank Sharma <shashank.sharma at intel.com>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>   drivers/gpu/drm/drm_scdc_helper.c | 10 +++++-----
>   1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_scdc_helper.c b/drivers/gpu/drm/drm_scdc_helper.c
> index 657ea5ab6c3f..870e25f1f788 100644
> --- a/drivers/gpu/drm/drm_scdc_helper.c
> +++ b/drivers/gpu/drm/drm_scdc_helper.c
> @@ -141,7 +141,7 @@ bool drm_scdc_get_scrambling_status(struct i2c_adapter *adapter)
>   
>   	ret = drm_scdc_readb(adapter, SCDC_SCRAMBLER_STATUS, &status);
>   	if (ret < 0) {
> -		DRM_ERROR("Failed to read scrambling status: %d\n", ret);
> +		DRM_DEBUG_KMS("Failed to read scrambling status: %d\n", ret);
>   		return false;
>   	}
>   
> @@ -168,7 +168,7 @@ bool drm_scdc_set_scrambling(struct i2c_adapter *adapter, bool enable)
>   
>   	ret = drm_scdc_readb(adapter, SCDC_TMDS_CONFIG, &config);
>   	if (ret < 0) {
> -		DRM_ERROR("Failed to read TMDS config: %d\n", ret);
> +		DRM_DEBUG_KMS("Failed to read TMDS config: %d\n", ret);
>   		return false;
>   	}
>   
> @@ -179,7 +179,7 @@ bool drm_scdc_set_scrambling(struct i2c_adapter *adapter, bool enable)
>   
>   	ret = drm_scdc_writeb(adapter, SCDC_TMDS_CONFIG, config);
>   	if (ret < 0) {
> -		DRM_ERROR("Failed to enable scrambling: %d\n", ret);
> +		DRM_DEBUG_KMS("Failed to enable scrambling: %d\n", ret);
>   		return false;
>   	}
>   
> @@ -223,7 +223,7 @@ bool drm_scdc_set_high_tmds_clock_ratio(struct i2c_adapter *adapter, bool set)
>   
>   	ret = drm_scdc_readb(adapter, SCDC_TMDS_CONFIG, &config);
>   	if (ret < 0) {
> -		DRM_ERROR("Failed to read TMDS config: %d\n", ret);
> +		DRM_DEBUG_KMS("Failed to read TMDS config: %d\n", ret);
>   		return false;
>   	}
>   
> @@ -234,7 +234,7 @@ bool drm_scdc_set_high_tmds_clock_ratio(struct i2c_adapter *adapter, bool set)
>   
>   	ret = drm_scdc_writeb(adapter, SCDC_TMDS_CONFIG, config);
>   	if (ret < 0) {
> -		DRM_ERROR("Failed to set TMDS clock ratio: %d\n", ret);
> +		DRM_DEBUG_KMS("Failed to set TMDS clock ratio: %d\n", ret);
>   		return false;
>   	}
>