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Commit 2b139522 authored by Eugeni Dodonov's avatar Eugeni Dodonov Committed by Daniel Vetter
Browse files

drm/i915: add enumeration for DDI ports 



There are 5 DDI ports on Haswell. Port A is always enabled, and is the one
connected to eDP, and Port E is the one that can be connected to the PCH
using FDI protocol.  Ports B, C, D and E can be used for digital outputs.

Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarEugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 9eb3a752

drivers/gpu/drm/i915/i915_drv.h

+10 −0
Original line number Diff line number Diff line
@@ -63,6 +63,16 @@ enum plane { 
};

#define plane_name(p) ((p) + 'A')



enum port {

	PORT_A = 0,

	PORT_B,

	PORT_C,

	PORT_D,

	PORT_E,

	I915_MAX_PORTS

};

#define port_name(p) ((p) + 'A')



#define I915_GEM_GPU_DOMAINS	(~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT))



#define for_each_pipe(p) for ((p) = 0; (p) < dev_priv->num_pipe; (p)++)

drivers/gpu/drm/i915/i915_reg.h

+2 −0
Original line number Diff line number Diff line
@@ -27,6 +27,8 @@ 


#define _PIPE(pipe, a, b) ((a) + (pipe)*((b)-(a)))



#define _PORT(port, a, b) ((a) + (port)*((b)-(a)))



/*

 * The Bridge device's PCI config space has information about the

 * fb aperture size and the amount of pre-reserved memory.