[Intel-gfx] [PATCH 2/5] drm: Make the HPD status updates debug logs more readable

[Ville Syrjälä]

On Wed, May 08, 2013 at 05:03:31PM +0100, Damien Lespiau wrote:
> Instead of just printing "status updated from 1 to 2", make those enum
> numbers immediately readable.
> 
> v2: Also patch output_poll_execute() (Daniel Vetter)
> 
> Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
> Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>
> ---
>  drivers/gpu/drm/drm_crtc_helper.c | 22 ++++++++++++++++++----
>  1 file changed, 18 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
> index 7b2d378..8976eb6 100644
> --- a/drivers/gpu/drm/drm_crtc_helper.c
> +++ b/drivers/gpu/drm/drm_crtc_helper.c
> @@ -968,6 +968,18 @@ void drm_kms_helper_hotplug_event(struct drm_device *dev)
>  }
>  EXPORT_SYMBOL(drm_kms_helper_hotplug_event);
>  
> +static const char *connector_status_str(enum drm_connector_status status)
> +{
> +	switch (status) {
> +	case connector_status_connected:
> +		return "connected";
> +	case connector_status_disconnected:
> +		return "disconnected";
> +	default:
> +		return "unknown";
> +	}
> +}

drm_get_connector_status_name()

> +
>  #define DRM_OUTPUT_POLL_PERIOD (10*HZ)
>  static void output_poll_execute(struct work_struct *work)
>  {
> @@ -1002,10 +1014,11 @@ static void output_poll_execute(struct work_struct *work)
>  			continue;
>  
>  		connector->status = connector->funcs->detect(connector, false);
> -		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
> +		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",
>  			      connector->base.id,
>  			      drm_get_connector_name(connector),
> -			      old_status, connector->status);
> +			      connector_status_str(old_status),
> +			      connector_status_str(connector->status));
>  		if (old_status != connector->status)
>  			changed = true;
>  	}
> @@ -1080,10 +1093,11 @@ void drm_helper_hpd_irq_event(struct drm_device *dev)
>  		old_status = connector->status;
>  
>  		connector->status = connector->funcs->detect(connector, false);
> -		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
> +		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",
>  			      connector->base.id,
>  			      drm_get_connector_name(connector),
> -			      old_status, connector->status);
> +			      connector_status_str(old_status),
> +			      connector_status_str(connector->status));
>  		if (old_status != connector->status)
>  			changed = true;
>  	}
> -- 
> 1.8.1.4
> 
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-- 
Ville Syrjälä
Intel OTC