[Intel-gfx] [PATCH v3 1/4] drm/i915: Store port enum in intel_encoder

Daniel Vetter daniel at ffwll.ch
Wed Aug 24 06:08:08 UTC 2016


On Tue, Aug 23, 2016 at 01:49:17PM -0700, Dhinakaran Pandiyan wrote:
> Storing the port enum in intel_encoder makes it convenient to know the
> port attached to an encoder. Moving the port information up from
> intel_digital_port to intel_encoder avoids unecessary intel_digital_port
> access and handles MST encoders cleanly without requiring conditional
> checks for them (thanks danvet).
> 
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.h     | 1 +
>  drivers/gpu/drm/i915/intel_ddi.c    | 1 +
>  drivers/gpu/drm/i915/intel_dp.c     | 1 +
>  drivers/gpu/drm/i915/intel_dp_mst.c | 1 +
>  drivers/gpu/drm/i915/intel_drv.h    | 1 +
>  drivers/gpu/drm/i915/intel_dsi.c    | 1 +
>  drivers/gpu/drm/i915/intel_dvo.c    | 2 ++
>  drivers/gpu/drm/i915/intel_hdmi.c   | 1 +
>  drivers/gpu/drm/i915/intel_lvds.c   | 3 ++-
>  drivers/gpu/drm/i915/intel_tv.c     | 2 ++
>  10 files changed, 13 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 9cd102c..60e282d5 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -185,6 +185,7 @@ enum plane {
>  #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
>  
>  enum port {
> +	PORT_NONE = -1,
>  	PORT_A = 0,
>  	PORT_B,
>  	PORT_C,
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> index c2df4e4..086de39 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -2426,6 +2426,7 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
>  	intel_dig_port->max_lanes = max_lanes;
>  
>  	intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
> +	intel_encoder->attached_port = port;
>  	intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
>  	intel_encoder->cloneable = 0;
>  
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 364db90..4771428 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -5726,6 +5726,7 @@ bool intel_dp_init(struct drm_device *dev,
>  		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
>  	}
>  	intel_encoder->cloneable = 0;
> +	intel_encoder->attached_port = port;
>  
>  	intel_dig_port->hpd_pulse = intel_dp_hpd_pulse;
>  	dev_priv->hotplug.irq_port[port] = intel_dig_port;
> diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
> index 629337d..a51f6f7 100644
> --- a/drivers/gpu/drm/i915/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/intel_dp_mst.c
> @@ -540,6 +540,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum
>  			 DRM_MODE_ENCODER_DPMST, "DP-MST %c", pipe_name(pipe));
>  
>  	intel_encoder->type = INTEL_OUTPUT_DP_MST;
> +	intel_encoder->attached_port = intel_dig_port->port;
>  	intel_encoder->crtc_mask = 0x7;
>  	intel_encoder->cloneable = 0;
>  
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 1c700b0..101d671 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -202,6 +202,7 @@ struct intel_encoder {
>  	struct drm_encoder base;
>  
>  	enum intel_output_type type;
> +	enum port attached_port;

Why the attached_ prefix? The intel_encoder _is_ the port (more or less at
least). Also intel_sdvo.c is missing. Otherwise I think it makes sense.
-Daniel


>  	unsigned int cloneable;
>  	void (*hot_plug)(struct intel_encoder *);
>  	bool (*compute_config)(struct intel_encoder *,
> diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
> index de8e9fb..293e530 100644
> --- a/drivers/gpu/drm/i915/intel_dsi.c
> +++ b/drivers/gpu/drm/i915/intel_dsi.c
> @@ -1478,6 +1478,7 @@ void intel_dsi_init(struct drm_device *dev)
>  
>  	intel_connector->get_hw_state = intel_connector_get_hw_state;
>  
> +	intel_encoder->attached_port = port;
>  	/*
>  	 * On BYT/CHV, pipe A maps to MIPI DSI port A, pipe B maps to MIPI DSI
>  	 * port C. BXT isn't limited like this.
> diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
> index 47bdf9d..86a888f 100644
> --- a/drivers/gpu/drm/i915/intel_dvo.c
> +++ b/drivers/gpu/drm/i915/intel_dvo.c
> @@ -511,7 +511,9 @@ void intel_dvo_init(struct drm_device *dev)
>  				 "DVO %c", intel_dvo_port_name(dvo->dvo_reg));
>  
>  		intel_encoder->type = INTEL_OUTPUT_DVO;
> +		intel_encoder->attached_port = PORT_NONE;
>  		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
> +
>  		switch (dvo->type) {
>  		case INTEL_DVO_CHIP_TMDS:
>  			intel_encoder->cloneable = (1 << INTEL_OUTPUT_ANALOG) |
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> index 4df9f38..070a5e2 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -1962,6 +1962,7 @@ void intel_hdmi_init(struct drm_device *dev,
>  	}
>  
>  	intel_encoder->type = INTEL_OUTPUT_HDMI;
> +	intel_encoder->attached_port = port;
>  	if (IS_CHERRYVIEW(dev)) {
>  		if (port == PORT_D)
>  			intel_encoder->crtc_mask = 1 << 2;
> diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
> index 668eabb..a497698 100644
> --- a/drivers/gpu/drm/i915/intel_lvds.c
> +++ b/drivers/gpu/drm/i915/intel_lvds.c
> @@ -1052,8 +1052,9 @@ void intel_lvds_init(struct drm_device *dev)
>  	intel_connector->get_hw_state = intel_connector_get_hw_state;
>  
>  	intel_connector_attach_encoder(intel_connector, intel_encoder);
> -	intel_encoder->type = INTEL_OUTPUT_LVDS;
>  
> +	intel_encoder->type = INTEL_OUTPUT_LVDS;
> +	intel_encoder->attached_port = PORT_NONE;
>  	intel_encoder->cloneable = 0;
>  	if (HAS_PCH_SPLIT(dev))
>  		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
> diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
> index 49136ad..18c4257 100644
> --- a/drivers/gpu/drm/i915/intel_tv.c
> +++ b/drivers/gpu/drm/i915/intel_tv.c
> @@ -1603,7 +1603,9 @@ intel_tv_init(struct drm_device *dev)
>  	intel_connector->get_hw_state = intel_connector_get_hw_state;
>  
>  	intel_connector_attach_encoder(intel_connector, intel_encoder);
> +
>  	intel_encoder->type = INTEL_OUTPUT_TVOUT;
> +	intel_encoder->attached_port = PORT_NONE;
>  	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
>  	intel_encoder->cloneable = 0;
>  	intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
> -- 
> 2.5.0
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch


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