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authorMatt Roper <matthew.d.roper@intel.com>2019-06-14 17:42:10 -0700
committerMatt Roper <matthew.d.roper@intel.com>2019-06-17 13:40:20 -0700
commitc6f7acb80abf5f73be4ee08541e3393a0146b15e (patch)
tree630dc79db0f9f5c1074d8528a07a711825a39d71 /drivers/gpu/drm/i915/i915_irq.c
parent32a1963148277407f7af0160da2b7c0527afc8a4 (diff)
downloadlinux-c6f7acb80abf5f73be4ee08541e3393a0146b15e.tar.gz
drm/i915/ehl: Introduce Mule Creek Canyon PCH
Although EHL introduces a new PCH, the South Display part of the PCH
that we care about is nearly identical to ICP, just with some pins
remapped.  Most notably, Port C is mapped to the pins that ICP uses for
TC Port 1.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190615004210.16656-1-matthew.d.roper@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 2aeb0431c432..b2e27b5b0df9 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -142,6 +142,12 @@ static const u32 hpd_icp[HPD_NUM_PINS] = {
 	[HPD_PORT_F] = SDE_TC4_HOTPLUG_ICP
 };
 
+static const u32 hpd_mcc[HPD_NUM_PINS] = {
+	[HPD_PORT_A] = SDE_DDIA_HOTPLUG_ICP,
+	[HPD_PORT_B] = SDE_DDIB_HOTPLUG_ICP,
+	[HPD_PORT_C] = SDE_TC1_HOTPLUG_ICP
+};
+
 static void gen3_irq_reset(struct intel_uncore *uncore, i915_reg_t imr,
 			   i915_reg_t iir, i915_reg_t ier)
 {
@@ -2498,7 +2504,8 @@ static void cpt_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
 		cpt_serr_int_handler(dev_priv);
 }
 
-static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
+static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir,
+			    const u32 *pins)
 {
 	u32 ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_ICP;
 	u32 tc_hotplug_trigger = pch_iir & SDE_TC_MASK_ICP;
@@ -2512,7 +2519,7 @@ static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
 
 		intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
 				   ddi_hotplug_trigger,
-				   dig_hotplug_reg, hpd_icp,
+				   dig_hotplug_reg, pins,
 				   icp_ddi_port_hotplug_long_detect);
 	}
 
@@ -2524,7 +2531,7 @@ static void icp_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
 
 		intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
 				   tc_hotplug_trigger,
-				   dig_hotplug_reg, hpd_icp,
+				   dig_hotplug_reg, pins,
 				   icp_tc_port_hotplug_long_detect);
 	}
 
@@ -2955,8 +2962,10 @@ gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl)
 			I915_WRITE(SDEIIR, iir);
 			ret = IRQ_HANDLED;
 
-			if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
-				icp_irq_handler(dev_priv, iir);
+			if (INTEL_PCH_TYPE(dev_priv) >= PCH_MCC)
+				icp_irq_handler(dev_priv, iir, hpd_mcc);
+			else if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP)
+				icp_irq_handler(dev_priv, iir, hpd_icp);
 			else if (INTEL_PCH_TYPE(dev_priv) >= PCH_SPT)
 				spt_irq_handler(dev_priv, iir);
 			else