drm/nv50: use register/unregister functionality for PDISPLAY ISR

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_irq.c

@@ -38,10 +38,6 @@
 #include "nouveau_ramht.h"
 #include "nouveau_util.h"
 
-/* needed for hotplug irq */
-#include "nouveau_connector.h"
-#include "nv50_display.h"
-
 void
 nouveau_irq_preinstall(struct drm_device *dev)
 {
@@ -50,12 +46,7 @@ nouveau_irq_preinstall(struct drm_device *dev)
 	/* Master disable */
 	nv_wr32(dev, NV03_PMC_INTR_EN_0, 0);
 
-	if (dev_priv->card_type >= NV_50) {
-		INIT_WORK(&dev_priv->irq_work, nv50_display_irq_handler_bh);
-		INIT_WORK(&dev_priv->hpd_work, nv50_display_irq_hotplug_bh);
-		spin_lock_init(&dev_priv->hpd_state.lock);
 	INIT_LIST_HEAD(&dev_priv->vbl_waiting);
-	}
 }
 
 int
@@ -1238,11 +1229,6 @@ nouveau_irq_handler(DRM_IRQ_ARGS)
 		status &= ~NV_PMC_INTR_0_CRTCn_PENDING;
 	}
 
-	if (status & NV_PMC_INTR_0_NV50_DISPLAY_PENDING) {
-		nv50_display_irq_handler(dev);
-		status &= ~NV_PMC_INTR_0_NV50_DISPLAY_PENDING;
-	}
-
 	for (i = 0; i < 32 && status; i++) {
 		if (!(status & (1 << i)) || !dev_priv->irq_handler[i])
 			continue;

drivers/gpu/drm/nouveau/nv50_display.c

@@ -33,6 +33,8 @@
 #include "nouveau_ramht.h"
 #include "drm_crtc_helper.h"
 
+static void nv50_display_isr(struct drm_device *);
+
 static inline int
 nv50_sor_nr(struct drm_device *dev)
 {
@@ -328,6 +330,9 @@ int nv50_display_create(struct drm_device *dev)
 		}
 	}
 
+	INIT_WORK(&dev_priv->irq_work, nv50_display_irq_handler_bh);
+	nouveau_irq_register(dev, 26, nv50_display_isr);
+
 	ret = nv50_display_init(dev);
 	if (ret) {
 		nv50_display_destroy(dev);
@@ -345,6 +350,7 @@ nv50_display_destroy(struct drm_device *dev)
 	drm_mode_config_cleanup(dev);
 
 	nv50_display_disable(dev);
+	nouveau_irq_unregister(dev, 26);
 }
 
 static u16
@@ -863,8 +869,8 @@ nv50_display_irq_hotplug_bh(struct work_struct *work)
 	drm_helper_hpd_irq_event(dev);
 }
 
-void
-nv50_display_irq_handler(struct drm_device *dev)
+static void
+nv50_display_isr(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	uint32_t delayed = 0;

drivers/gpu/drm/nouveau/nv50_display.h

@@ -35,7 +35,6 @@
 #include "nouveau_crtc.h"
 #include "nv50_evo.h"
 
-void nv50_display_irq_handler(struct drm_device *dev);
 void nv50_display_irq_handler_bh(struct work_struct *work);
 void nv50_display_irq_hotplug_bh(struct work_struct *work);
 int nv50_display_early_init(struct drm_device *dev);

drivers/gpu/drm/nouveau/nv50_gpio.c

@@ -26,6 +26,8 @@
 #include "nouveau_drv.h"
 #include "nouveau_hw.h"
 
+#include "nv50_display.h"
+
 static void nv50_gpio_isr(struct drm_device *dev);
 
 static int
@@ -109,6 +111,8 @@ nv50_gpio_init(struct drm_device *dev)
 		nv_wr32(dev, 0xe074, 0xffffffff);
 	}
 
+	INIT_WORK(&dev_priv->hpd_work, nv50_display_irq_hotplug_bh);
+	spin_lock_init(&dev_priv->hpd_state.lock);
 	nouveau_irq_register(dev, 21, nv50_gpio_isr);
 	return 0;
 }