drm/i915/display: split out hw state readout and sanitize

Split out the modeset hardware state readout and sanitize, or state
setup, to a separate file.

Do some drive-by checkpatch fixes while at it.

v2: Rebase
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220617094817.3466584-1-jani.nikula@intel.com

drivers/gpu/drm/i915/Makefile

@@ -234,6 +234,7 @@ i915-y += \
 	display/intel_hotplug.o \
 	display/intel_lpe_audio.o \
 	display/intel_modeset_verify.o \
+	display/intel_modeset_setup.o \
 	display/intel_overlay.o \
 	display/intel_pch_display.o \
 	display/intel_pch_refclk.o \

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

@@ -56,6 +56,7 @@ struct intel_initial_plane_config;
 struct intel_load_detect_pipe;
 struct intel_plane;
 struct intel_plane_state;
+struct intel_power_domain_mask;
 struct intel_remapped_info;
 struct intel_rotation_info;
 struct pci_dev;
@@ -563,6 +564,7 @@ bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state);
 bool intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 			       const struct intel_crtc_state *pipe_config,
 			       bool fastset);
+void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state);
 
 void intel_plane_destroy(struct drm_plane *plane);
 void intel_enable_transcoder(const struct intel_crtc_state *new_crtc_state);
@@ -659,10 +661,16 @@ intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
 			   const struct intel_crtc_state *crtc_state);
 void intel_plane_disable_noatomic(struct intel_crtc *crtc,
 				  struct intel_plane *plane);
+void intel_set_plane_visible(struct intel_crtc_state *crtc_state,
+			     struct intel_plane_state *plane_state,
+			     bool visible);
+void intel_plane_fixup_bitmasks(struct intel_crtc_state *crtc_state);
 
 void intel_display_driver_register(struct drm_i915_private *i915);
 void intel_display_driver_unregister(struct drm_i915_private *i915);
 
+void intel_update_watermarks(struct drm_i915_private *i915);
+
 /* modesetting */
 bool intel_modeset_probe_defer(struct pci_dev *pdev);
 void intel_modeset_init_hw(struct drm_i915_private *i915);
@@ -674,6 +682,10 @@ void intel_modeset_driver_remove_noirq(struct drm_i915_private *i915);
 void intel_modeset_driver_remove_nogem(struct drm_i915_private *i915);
 void intel_display_resume(struct drm_device *dev);
 int intel_modeset_all_pipes(struct intel_atomic_state *state);
+void intel_modeset_get_crtc_power_domains(struct intel_crtc_state *crtc_state,
+					  struct intel_power_domain_mask *old_domains);
+void intel_modeset_put_crtc_power_domains(struct intel_crtc *crtc,
+					  struct intel_power_domain_mask *domains);
 
 /* modesetting asserts */
 void assert_transcoder(struct drm_i915_private *dev_priv,

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

+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef __INTEL_MODESET_SETUP_H__
+#define __INTEL_MODESET_SETUP_H__
+
+struct drm_device;
+struct drm_modeset_acquire_ctx;
+
+void intel_modeset_setup_hw_state(struct drm_device *dev,
+				  struct drm_modeset_acquire_ctx *ctx);
+
+#endif /* __INTEL_MODESET_SETUP_H__ */