[Intel-gfx] [PATCH 08/11] drm/i915: split intel_modeset_init() pre/post gem init

[Jani Nikula]

Turn current intel_modeset_init() to a pre-gem init function, and add a
new intel_modeset_init() function and move all post-gem modeset init
there, in the correct layer. Again, apart from possible failure paths,
no functional changes.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 26 ++++++++++++++++++--
 drivers/gpu/drm/i915/display/intel_display.h |  1 +
 drivers/gpu/drm/i915/i915_drv.c              | 14 ++---------
 3 files changed, 27 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 2352c0b6b9fa..3e97d4d76900 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -16213,8 +16213,8 @@ int intel_modeset_init_noirq(struct drm_i915_private *i915)
 	return 0;
 }
 
-/* part #2: call after irq install */
-int intel_modeset_init(struct drm_i915_private *i915)
+/* part #2: call after irq install, but before gem init */
+int intel_modeset_init_nogem(struct drm_i915_private *i915)
 {
 	struct drm_device *dev = &i915->drm;
 	enum pipe pipe;
@@ -16303,6 +16303,28 @@ int intel_modeset_init(struct drm_i915_private *i915)
 	return 0;
 }
 
+/* part #3: call after gem init */
+int intel_modeset_init(struct drm_i915_private *i915)
+{
+	int ret;
+
+	intel_overlay_setup(i915);
+
+	if (!HAS_DISPLAY(i915) || !INTEL_DISPLAY_ENABLED(i915))
+		return 0;
+
+	ret = intel_fbdev_init(&i915->drm);
+	if (ret)
+		return ret;
+
+	/* Only enable hotplug handling once the fbdev is fully set up. */
+	intel_hpd_init(i915);
+
+	intel_init_ipc(i915);
+
+	return 0;
+}
+
 void i830_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
 {
 	struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 568b641a38dd..9d9085984992 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -578,6 +578,7 @@ 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_nogem(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 3330e40724cb..abd8bc0b0544 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -314,7 +314,7 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
 
 	/* Important: The output setup functions called by modeset_init need
 	 * working irqs for e.g. gmbus and dp aux transfers. */
-	ret = intel_modeset_init(i915);
+	ret = intel_modeset_init_nogem(i915);
 	if (ret)
 		goto out;
 
@@ -322,20 +322,10 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
 	if (ret)
 		goto cleanup_modeset;
 
-	intel_overlay_setup(i915);
-
-	if (!HAS_DISPLAY(i915) || !INTEL_DISPLAY_ENABLED(i915))
-		return 0;
-
-	ret = intel_fbdev_init(&i915->drm);
+	ret = intel_modeset_init(i915);
 	if (ret)
 		goto cleanup_gem;
 
-	/* Only enable hotplug handling once the fbdev is fully set up. */
-	intel_hpd_init(i915);
-
-	intel_init_ipc(i915);
-
 	return 0;
 
 cleanup_gem:
-- 
2.20.1