Re: [PATCH IGT] tests/kms_setmode: avoid 2 connectors on the same encoder

[Imre Deak <imre.deak@intel.com>]

On Tue, 2013-12-03 at 15:38 -0200, Paulo Zanoni wrote:
> From: Paulo Zanoni <paulo.r.zanoni@intel.com>
> 
> Don't try to set modes on two connectors that share the same encoder.
> That will just fail.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68463
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>

Looks ok:
Reviewed-by: Imre Deak <imre.deak@intel.com>

> ---
>  tests/kms_setmode.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/tests/kms_setmode.c b/tests/kms_setmode.c
> index 3d18fc7..e1c9c5a 100644
> --- a/tests/kms_setmode.c
> +++ b/tests/kms_setmode.c
> @@ -275,6 +275,7 @@ static void setup_crtcs(drmModeRes *resources, struct connector_config *cconf,
>  	int crtc_count;
>  	bool config_valid;
>  	int i;
> +	int encoder_usage_count[resources->count_encoders];
>  
>  	i = 0;
>  	crtc_count = 0;
> @@ -337,6 +338,20 @@ static void setup_crtcs(drmModeRes *resources, struct connector_config *cconf,
>  		crtc++;
>  	}
>  
> +	memset(encoder_usage_count, 0, sizeof(encoder_usage_count));
> +	for (i = 0; i < connector_count; i++) {
> +		drmModeConnector *connector = cconf[i].connector;
> +		drmModeEncoder *encoder;
> +
> +		igt_assert(connector->count_encoders == 1);
> +		encoder = drmModeGetEncoder(drm_fd, connector->encoders[0]);
> +		encoder_usage_count[get_encoder_idx(resources, encoder)]++;
> +		drmModeFreeEncoder(encoder);
> +	}
> +	for (i = 0; i < resources->count_encoders; i++)
> +		if (encoder_usage_count[i] > 1)
> +			config_valid = false;
> +
>  	*crtc_count_ret = crtc_count;
>  	*config_valid_ret = config_valid;
>  }