drm/i915/irq: split out hotplug irq handling

Split hotplug irq handling out of i915_irq.[ch] into
display/intel_hotplug_irq.[ch].

The line between the new intel_hotplug_irq.[ch] and the existing
intel_hotplug.[ch] needs further clarification, but the first step is to
move the stuff out of i915_irq.[ch].

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515101738.2399816-2-jani.nikula@intel.com

drivers/gpu/drm/i915/Makefile

@@ -260,6 +260,7 @@ i915-y += \
 	display/intel_hdcp.o \
 	display/intel_hdcp_gsc.o \
 	display/intel_hotplug.o \
+	display/intel_hotplug_irq.o \
 	display/intel_hti.o \
 	display/intel_load_detect.o \
 	display/intel_lpe_audio.o \

drivers/gpu/drm/i915/display/intel_crt.c

@@ -48,6 +48,7 @@
 #include "intel_fifo_underrun.h"
 #include "intel_gmbus.h"
 #include "intel_hotplug.h"
+#include "intel_hotplug_irq.h"
 #include "intel_load_detect.h"
 #include "intel_pch_display.h"
 #include "intel_pch_refclk.h"

drivers/gpu/drm/i915/display/intel_dp.c

@@ -68,6 +68,7 @@
 #include "intel_hdcp.h"
 #include "intel_hdmi.h"
 #include "intel_hotplug.h"
+#include "intel_hotplug_irq.h"
 #include "intel_lspcon.h"
 #include "intel_lvds.h"
 #include "intel_panel.h"

drivers/gpu/drm/i915/display/intel_hotplug.c

@@ -27,6 +27,7 @@
 #include "i915_irq.h"
 #include "intel_display_types.h"
 #include "intel_hotplug.h"
+#include "intel_hotplug_irq.h"
 
 /**
  * DOC: Hotplug

drivers/gpu/drm/i915/display/intel_hotplug_irq.h

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_HOTPLUG_IRQ_H__
+#define __INTEL_HOTPLUG_IRQ_H__
+
+#include <linux/types.h>
+
+struct drm_i915_private;
+struct intel_encoder;
+
+u32 i9xx_hpd_irq_ack(struct drm_i915_private *i915);
+
+void i9xx_hpd_irq_handler(struct drm_i915_private *i915, u32 hotplug_status);
+void ibx_hpd_irq_handler(struct drm_i915_private *i915, u32 hotplug_trigger);
+void ilk_hpd_irq_handler(struct drm_i915_private *i915, u32 hotplug_trigger);
+void gen11_hpd_irq_handler(struct drm_i915_private *i915, u32 iir);
+void bxt_hpd_irq_handler(struct drm_i915_private *i915, u32 hotplug_trigger);
+void xelpdp_pica_irq_handler(struct drm_i915_private *i915, u32 iir);
+void icp_irq_handler(struct drm_i915_private *i915, u32 pch_iir);
+void spt_irq_handler(struct drm_i915_private *i915, u32 pch_iir);
+
+void i915_hotplug_interrupt_update_locked(struct drm_i915_private *i915,
+					  u32 mask, u32 bits);
+void i915_hotplug_interrupt_update(struct drm_i915_private *i915,
+				   u32 mask, u32 bits);
+
+void intel_hpd_enable_detection(struct intel_encoder *encoder);
+void intel_hpd_irq_setup(struct drm_i915_private *i915);
+
+void intel_hotplug_irq_init(struct drm_i915_private *i915);
+
+#endif /* __INTEL_HOTPLUG_IRQ_H__ */

drivers/gpu/drm/i915/i915_irq.h

@@ -38,18 +38,18 @@ i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
 void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
 void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
 
-void intel_hpd_enable_detection(struct intel_encoder *encoder);
-void intel_hpd_irq_setup(struct drm_i915_private *i915);
-void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv,
-				   u32 mask,
-				   u32 bits);
-
+void ilk_update_display_irq(struct drm_i915_private *i915,
+			    u32 interrupt_mask, u32 enabled_irq_mask);
 void ilk_enable_display_irq(struct drm_i915_private *i915, u32 bits);
 void ilk_disable_display_irq(struct drm_i915_private *i915, u32 bits);
 
+void bdw_update_port_irq(struct drm_i915_private *i915,
+			 u32 interrupt_mask, u32 enabled_irq_mask);
 void bdw_enable_pipe_irq(struct drm_i915_private *i915, enum pipe pipe, u32 bits);
 void bdw_disable_pipe_irq(struct drm_i915_private *i915, enum pipe pipe, u32 bits);
 
+void ibx_display_interrupt_update(struct drm_i915_private *i915,
+				  u32 interrupt_mask, u32 enabled_irq_mask);
 void ibx_enable_display_interrupt(struct drm_i915_private *i915, u32 bits);
 void ibx_disable_display_interrupt(struct drm_i915_private *i915, u32 bits);