[07/11] drm/i915: split intel_modeset_init() to pre/post irq install

Commit Message

Jani Nikula Oct. 7, 2019, 3:09 p.m. UTC

Split inte_modeset_init() to parts before and after irq install, to
facilitate further cleanup. The error paths are a mess, otherwise no
functional changes.

Signed-off-by: Jani Nikula <[e-mail]>
---
 drivers/gpu/drm/i915/display/intel_display.c | 17 +++++++++++++----
 drivers/gpu/drm/i915/display/intel_display.h |  1 +
 drivers/gpu/drm/i915/i915_drv.c              |  6 ++++++
 3 files changed, 20 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index d78f2c908d8b..2352c0b6b9fa 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -16187,11 +16187,9 @@  static void intel_mode_config_init(struct drm_i915_private *i915)
 	}
 }
 
-int intel_modeset_init(struct drm_i915_private *i915)
+/* part #1: call before irq install */
+int intel_modeset_init_noirq(struct drm_i915_private *i915)
 {
-	struct drm_device *dev = &i915->drm;
-	enum pipe pipe;
-	struct intel_crtc *crtc;
 	int ret;
 
 	i915->modeset_wq = alloc_ordered_workqueue("i915_modeset", 0);
@@ -16212,6 +16210,17 @@  int intel_modeset_init(struct drm_i915_private *i915)
 
 	intel_fbc_init(i915);
 
+	return 0;
+}
+
+/* part #2: call after irq install */
+int intel_modeset_init(struct drm_i915_private *i915)
+{
+	struct drm_device *dev = &i915->drm;
+	enum pipe pipe;
+	struct intel_crtc *crtc;
+	int ret;
+
 	intel_init_pm(i915);
 
 	intel_panel_sanitize_ssc(i915);
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index d0705f338048..568b641a38dd 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -577,6 +577,7 @@  void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
 
 /* modesetting */
 void intel_modeset_init_hw(struct drm_i915_private *i915);
+int intel_modeset_init_noirq(struct drm_i915_private *i915);
 int intel_modeset_init(struct drm_i915_private *i915);
 void intel_modeset_driver_remove(struct drm_i915_private *i915);
 void intel_modeset_driver_remove_noirq(struct drm_i915_private *i915);
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index cf3daa49a4d1..3330e40724cb 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -292,8 +292,14 @@  static int i915_driver_modeset_probe_noirq(struct drm_i915_private *i915)
 
 	intel_csr_ucode_init(i915);
 
+	ret = intel_modeset_init_noirq(i915);
+	if (ret)
+		goto cleanup_vga_client;
+
 	return 0;
 
+cleanup_vga_client:
+	intel_vga_unregister(i915);
 out:
 	return ret;
 }