drm/i915: Move HAS_GMBUS_IRQ definition to platform definition

Moving all GPU features to the platform struct definition allows for
	- standard place when adding new features from new platforms
	- possible to see supported features when dumping struct
	  definitions

Signed-off-by: Carlos Santa <carlos.santa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/i915/i915_drv.h

@@ -661,6 +661,7 @@ struct intel_csr {
 	func(has_rc6) sep \
 	func(has_rc6p) sep \
 	func(has_dp_mst) sep \
+	func(has_gmbus_irq) sep \
 	func(has_pipe_cxsr) sep \
 	func(has_hotplug) sep \
 	func(cursor_needs_physical) sep \
@@ -2770,7 +2771,7 @@ struct drm_i915_cmd_table {
  * interrupt source and so prevents the other device from working properly.
  */
 #define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
-#define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
+#define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->has_gmbus_irq)
 
 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
  * rows, which changed the alignment requirements and fence programming.

drivers/gpu/drm/i915/i915_pci.c

@@ -181,6 +181,7 @@ static const struct intel_device_info intel_pineview_info = {
 #define GEN5_FEATURES \
 	.gen = 5, .num_pipes = 2, \
 	.need_gfx_hws = 1, .has_hotplug = 1, \
+	.has_gmbus_irq = 1, \
 	.ring_mask = RENDER_RING | BSD_RING, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	CURSOR_OFFSETS
@@ -202,6 +203,7 @@ static const struct intel_device_info intel_ironlake_m_info = {
 	.has_llc = 1, \
 	.has_rc6 = 1, \
 	.has_rc6p = 1, \
+	.has_gmbus_irq = 1, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	CURSOR_OFFSETS
 
@@ -222,6 +224,7 @@ static const struct intel_device_info intel_sandybridge_m_info = {
 	.has_llc = 1, \
 	.has_rc6 = 1, \
 	.has_rc6p = 1, \
+	.has_gmbus_irq = 1, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	IVB_CURSOR_OFFSETS
 
@@ -247,6 +250,7 @@ static const struct intel_device_info intel_ivybridge_q_info = {
 	.has_psr = 1, \
 	.has_runtime_pm = 1, \
 	.has_rc6 = 1, \
+	.has_gmbus_irq = 1, \
 	.need_gfx_hws = 1, .has_hotplug = 1, \
 	.ring_mask = RENDER_RING | BSD_RING | BLT_RING, \
 	.display_mmio_offset = VLV_DISPLAY_BASE, \
@@ -300,6 +304,7 @@ static const struct intel_device_info intel_cherryview_info = {
 	.has_runtime_pm = 1,
 	.has_resource_streamer = 1,
 	.has_rc6 = 1,
+	.has_gmbus_irq = 1,
 	.display_mmio_offset = VLV_DISPLAY_BASE,
 	GEN_CHV_PIPEOFFSETS,
 	CURSOR_OFFSETS,
@@ -336,6 +341,7 @@ static const struct intel_device_info intel_broxton_info = {
 	.has_resource_streamer = 1,
 	.has_rc6 = 1,
 	.has_dp_mst = 1,
+	.has_gmbus_irq = 1,
 	GEN_DEFAULT_PIPEOFFSETS,
 	IVB_CURSOR_OFFSETS,
 	BDW_COLORS,