[PATCH 40/59] drm/i915/cnl: Add Port F definition.

[Timo Aaltonen]

From: Rodrigo Vivi <rodrigo.vivi at intel.com>

BugLink: http://bugs.launchpad.net/bugs/1757573

Some Cannonlake SKUs will come with a full split between
port A and port E. This will be called port F although it
is not a 6th port, but only a split.

Note this patch alone is not sufficient for port F enabling,
it's just the first step.

v2: Fix size of dvo_ports found by Ander.
v3: Adding missing cases from intel_bios.c for Port_F
v4: Adding other missing cases and fix the commit message.
v5: Rebase on top of display headers rework.
v6 (from Paulo): improve commit message, bikeshed bit definitions.

Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Cc: Manasi Navare <manasi.d.navare at intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180111180010.24357-2-paulo.r.zanoni@intel.com
(backported from git://anongit.freedesktop.org/drm/drm-intel commit 841b5ed7aaec4578cd7303fb7f456f01b90dd313)
Signed-off-by: Timo Aaltonen <timo.aaltonen at canonical.com>
---
 drivers/gpu/drm/i915/i915_drv.h       | 1 +
 drivers/gpu/drm/i915/intel_bios.c     | 9 +++++++++
 drivers/gpu/drm/i915/intel_dp.c       | 2 ++
 drivers/gpu/drm/i915/intel_vbt_defs.h | 2 ++
 include/drm/i915_component.h          | 3 +--
 5 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6739f02b1763..93a6c1c71149 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -346,6 +346,7 @@ enum port {
 	PORT_C,
 	PORT_D,
 	PORT_E,
+	PORT_F,
 	I915_MAX_PORTS
 };
 #define port_name(p) ((p) + 'A')
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index f6422476d050..a4efc3ae704e 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1147,6 +1147,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
 		{DVO_PORT_HDMIC, DVO_PORT_DPC, -1},
 		{DVO_PORT_HDMID, DVO_PORT_DPD, -1},
 		{DVO_PORT_CRT, DVO_PORT_HDMIE, DVO_PORT_DPE},
+		{DVO_PORT_HDMIF, DVO_PORT_DPF, -1},
 	};
 
 	/*
@@ -1691,6 +1692,7 @@ bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port por
 		[PORT_C] = { DVO_PORT_DPC, DVO_PORT_HDMIC, },
 		[PORT_D] = { DVO_PORT_DPD, DVO_PORT_HDMID, },
 		[PORT_E] = { DVO_PORT_DPE, DVO_PORT_HDMIE, },
+		[PORT_F] = { DVO_PORT_DPF, DVO_PORT_HDMIF, },
 	};
 	int i;
 
@@ -1729,6 +1731,7 @@ bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port)
 		[PORT_C] = DVO_PORT_DPC,
 		[PORT_D] = DVO_PORT_DPD,
 		[PORT_E] = DVO_PORT_DPE,
+		[PORT_F] = DVO_PORT_DPF,
 	};
 	int i;
 
@@ -1764,6 +1767,7 @@ static bool child_dev_is_dp_dual_mode(const struct child_device_config *child,
 		[PORT_C] = { DVO_PORT_DPC, DVO_PORT_HDMIC, },
 		[PORT_D] = { DVO_PORT_DPD, DVO_PORT_HDMID, },
 		[PORT_E] = { DVO_PORT_DPE, DVO_PORT_HDMIE, },
+		[PORT_F] = { DVO_PORT_DPF, DVO_PORT_HDMIF, },
 	};
 
 	if (port == PORT_A || port >= ARRAY_SIZE(port_mapping))
@@ -1930,6 +1934,11 @@ intel_bios_is_lspcon_present(struct drm_i915_private *dev_priv,
 			if (port == PORT_D)
 				return true;
 			break;
+		case DVO_PORT_DPF:
+		case DVO_PORT_HDMIF:
+			if (port == PORT_F)
+				return true;
+			break;
 		default:
 			break;
 		}
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index add4b2434aa3..922072c19a46 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1392,6 +1392,7 @@ static i915_reg_t skl_aux_ctl_reg(struct drm_i915_private *dev_priv,
 	case PORT_B:
 	case PORT_C:
 	case PORT_D:
+	case PORT_F:
 		return DP_AUX_CH_CTL(port);
 	default:
 		MISSING_CASE(port);
@@ -1407,6 +1408,7 @@ static i915_reg_t skl_aux_data_reg(struct drm_i915_private *dev_priv,
 	case PORT_B:
 	case PORT_C:
 	case PORT_D:
+	case PORT_F:
 		return DP_AUX_CH_DATA(port, index);
 	default:
 		MISSING_CASE(port);
diff --git a/drivers/gpu/drm/i915/intel_vbt_defs.h b/drivers/gpu/drm/i915/intel_vbt_defs.h
index 56ed744c9c76..42183d041b65 100644
--- a/drivers/gpu/drm/i915/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/intel_vbt_defs.h
@@ -299,6 +299,8 @@ struct bdb_general_features {
 #define DVO_PORT_DPA		10
 #define DVO_PORT_DPE		11				/* 193 */
 #define DVO_PORT_HDMIE		12				/* 193 */
+#define DVO_PORT_DPF		13				/* N/A */
+#define DVO_PORT_HDMIF		14				/* N/A */
 #define DVO_PORT_MIPIA		21				/* 171 */
 #define DVO_PORT_MIPIB		22				/* 171 */
 #define DVO_PORT_MIPIC		23				/* 171 */
diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h
index 545c6e0fea7d..346b1f5cb180 100644
--- a/include/drm/i915_component.h
+++ b/include/drm/i915_component.h
@@ -26,9 +26,8 @@
 
 /* MAX_PORT is the number of port
  * It must be sync with I915_MAX_PORTS defined i915_drv.h
- * 5 should be enough as only HSW, BDW, SKL need such fix.
  */
-#define MAX_PORTS 5
+#define MAX_PORTS 6
 
 /**
  * struct i915_audio_component_ops - Ops implemented by i915 driver, called by hda driver
-- 
2.15.1