Re: [PATCH 08/19] drm/i915: Don't use encoder->new_crtc in intel_modeset_pipe_config()

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> -----Original Message-----
> From: Conselvan De Oliveira, Ander
> Sent: Friday, March 13, 2015 2:49 AM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Konduru, Chandra; Conselvan De Oliveira, Ander
> Subject: [PATCH 08/19] drm/i915: Don't use encoder->new_crtc in
> intel_modeset_pipe_config()
> 
> Move towards atomic by using the legacy modeset's drm_atomic_state instead.
> 
> v2: Move call to drm_atomic_add_affected_connectors() to
>     intel_modeset_compute_config(). (Daniel)
> 
> Signed-off-by: Ander Conselvan de Oliveira
> <ander.conselvan.de.oliveira@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 17 +++++++++++++++--
>  1 file changed, 15 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 6465f6d..1609628 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -10435,8 +10435,11 @@ intel_modeset_pipe_config(struct drm_crtc *crtc,
> {
>  	struct drm_device *dev = crtc->dev;
>  	struct intel_encoder *encoder;
> +	struct intel_connector *connector;
> +	struct drm_connector_state *connector_state;
>  	struct intel_crtc_state *pipe_config;
>  	int plane_bpp, ret = -EINVAL;
> +	int i;
>  	bool retry = true;
> 
>  	if (!check_encoder_cloning(to_intel_crtc(crtc))) { @@ -10510,11
> +10513,17 @@ encoder_retry:
>  	 * adjust it according to limitations or connector properties, and also
>  	 * a chance to reject the mode entirely.
>  	 */
> -	for_each_intel_encoder(dev, encoder) {
> +	for (i = 0; i < state->num_connector; i++) {
> +		connector = to_intel_connector(state->connectors[i]);
> +		if (!connector)
> +			continue;
> 
> -		if (&encoder->new_crtc->base != crtc)
> +		connector_state = state->connector_states[i];
> +		if (connector_state->crtc != crtc)
>  			continue;
> 
> +		encoder = to_intel_encoder(connector_state->best_encoder);
> +
>  		if (!(encoder->compute_config(encoder, pipe_config))) {
>  			DRM_DEBUG_KMS("Encoder config failure\n");
>  			goto fail;
> @@ -11238,6 +11247,10 @@ intel_modeset_compute_config(struct drm_crtc
> *crtc,
>  	struct intel_crtc *intel_crtc;
>  	int ret = 0;
> 
> +	ret = drm_atomic_add_affected_connectors(state, crtc);

If the current transaction is started by DRM core, above operation 
will be added by core, right?
And when we move to full atomic_modeset, then above needs
to be deleted?

> +	if (ret)
> +		return ERR_PTR(ret);
> +
>  	intel_modeset_affected_pipes(crtc, modeset_pipes,
>  				     prepare_pipes, disable_pipes);
> 
> --
> 2.1.0

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