drm/{i915, xe}: Suspend/resume fbdev emulation via client interfaces

Implement drm_client_dev_suspend() and drm_client_dev_resume() for
i915's fbdev emulation and call the helper via DRM client interfaces.
This is required to convert i915 and xe to DRM's generic fbdev client.
No functional changes.

Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Rodrigo Vivi <[email protected]>
Reviewed-by: Maarten Lankhorst <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Maarten Lankhorst <[email protected]>

Author: Thomas Zimmermann

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

@@ -643,11 +643,27 @@ static int intel_fbdev_client_hotplug(struct drm_client_dev *client)
 	return ret;
 }
 
+static int intel_fbdev_client_suspend(struct drm_client_dev *client, bool holds_console_lock)
+{
+	intel_fbdev_set_suspend(client->dev, FBINFO_STATE_SUSPENDED, true);
+
+	return 0;
+}
+
+static int intel_fbdev_client_resume(struct drm_client_dev *client, bool holds_console_lock)
+{
+	intel_fbdev_set_suspend(client->dev, FBINFO_STATE_RUNNING, false);
+
+	return 0;
+}
+
 static const struct drm_client_funcs intel_fbdev_client_funcs = {
 	.owner		= THIS_MODULE,
 	.unregister	= intel_fbdev_client_unregister,
 	.restore	= intel_fbdev_client_restore,
 	.hotplug	= intel_fbdev_client_hotplug,
+	.suspend	= intel_fbdev_client_suspend,
+	.resume		= intel_fbdev_client_resume,
 };
 
 void intel_fbdev_setup(struct drm_i915_private *i915)

drivers/gpu/drm/i915/i915_driver.c

@@ -41,6 +41,8 @@
 #include <linux/vt.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client.h>
+#include <drm/drm_client_event.h>
 #include <drm/drm_ioctl.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_probe_helper.h>
@@ -54,7 +56,6 @@
 #include "display/intel_dp.h"
 #include "display/intel_dpt.h"
 #include "display/intel_encoder.h"
-#include "display/intel_fbdev.h"
 #include "display/intel_hotplug.h"
 #include "display/intel_overlay.h"
 #include "display/intel_pch_refclk.h"
@@ -968,7 +969,7 @@ void i915_driver_shutdown(struct drm_i915_private *i915)
 	intel_runtime_pm_disable(&i915->runtime_pm);
 	intel_power_domains_disable(display);
 
-	intel_fbdev_set_suspend(&i915->drm, FBINFO_STATE_SUSPENDED, true);
+	drm_client_dev_suspend(&i915->drm, false);
 	if (HAS_DISPLAY(i915)) {
 		drm_kms_helper_poll_disable(&i915->drm);
 		intel_display_driver_disable_user_access(display);
@@ -1051,7 +1052,7 @@ static int i915_drm_suspend(struct drm_device *dev)
 	/* We do a lot of poking in a lot of registers, make sure they work
 	 * properly. */
 	intel_power_domains_disable(display);
-	intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED, true);
+	drm_client_dev_suspend(dev, false);
 	if (HAS_DISPLAY(dev_priv)) {
 		drm_kms_helper_poll_disable(dev);
 		intel_display_driver_disable_user_access(display);
@@ -1237,7 +1238,7 @@ static int i915_drm_resume(struct drm_device *dev)
 
 	intel_opregion_resume(display);
 
-	intel_fbdev_set_suspend(dev, FBINFO_STATE_RUNNING, false);
+	drm_client_dev_resume(dev, false);
 
 	intel_power_domains_enable(display);
 

drivers/gpu/drm/xe/display/xe_display.c

@@ -8,6 +8,8 @@
 
 #include <linux/fb.h>
 
+#include <drm/drm_client.h>
+#include <drm/drm_client_event.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_probe_helper.h>
@@ -25,7 +27,6 @@
 #include "intel_dmc_wl.h"
 #include "intel_dp.h"
 #include "intel_encoder.h"
-#include "intel_fbdev.h"
 #include "intel_hdcp.h"
 #include "intel_hotplug.h"
 #include "intel_opregion.h"
@@ -348,7 +349,7 @@ void xe_display_pm_suspend(struct xe_device *xe)
 	 * properly.
 	 */
 	intel_power_domains_disable(display);
-	intel_fbdev_set_suspend(&xe->drm, FBINFO_STATE_SUSPENDED, true);
+	drm_client_dev_suspend(&xe->drm, false);
 
 	if (has_display(xe)) {
 		drm_kms_helper_poll_disable(&xe->drm);
@@ -378,7 +379,8 @@ void xe_display_pm_shutdown(struct xe_device *xe)
 		return;
 
 	intel_power_domains_disable(display);
-	intel_fbdev_set_suspend(&xe->drm, FBINFO_STATE_SUSPENDED, true);
+	drm_client_dev_suspend(&xe->drm, false);
+
 	if (has_display(xe)) {
 		drm_kms_helper_poll_disable(&xe->drm);
 		intel_display_driver_disable_user_access(display);
@@ -497,7 +499,7 @@ void xe_display_pm_resume(struct xe_device *xe)
 
 	intel_opregion_resume(display);
 
-	intel_fbdev_set_suspend(&xe->drm, FBINFO_STATE_RUNNING, false);
+	drm_client_dev_resume(&xe->drm, false);
 
 	intel_power_domains_enable(display);
 }