drm/nv50: move GPIO ISR to nv50_gpio.c

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

drivers/gpu/drm/nouveau/nouveau_drv.h

@@ -1359,6 +1359,7 @@ int nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
 
 /* nv50_gpio.c */
 int nv50_gpio_init(struct drm_device *dev);
+void nv50_gpio_fini(struct drm_device *dev);
 int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
 int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
 void nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on);

drivers/gpu/drm/nouveau/nouveau_irq.c

@@ -1238,11 +1238,9 @@ nouveau_irq_handler(DRM_IRQ_ARGS)
 		status &= ~NV_PMC_INTR_0_CRTCn_PENDING;
 	}
 
-	if (status & (NV_PMC_INTR_0_NV50_DISPLAY_PENDING |
-		      NV_PMC_INTR_0_NV50_I2C_PENDING)) {
+	if (status & NV_PMC_INTR_0_NV50_DISPLAY_PENDING) {
 		nv50_display_irq_handler(dev);
-		status &= ~(NV_PMC_INTR_0_NV50_DISPLAY_PENDING |
-			    NV_PMC_INTR_0_NV50_I2C_PENDING);
+		status &= ~NV_PMC_INTR_0_NV50_DISPLAY_PENDING;
 	}
 
 	for (i = 0; i < 32 && status; i++) {

drivers/gpu/drm/nouveau/nouveau_state.c

@@ -393,7 +393,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.init		= nv50_display_init;
 		engine->display.destroy		= nv50_display_destroy;
 		engine->gpio.init		= nv50_gpio_init;
-		engine->gpio.takedown		= nouveau_stub_takedown;
+		engine->gpio.takedown		= nv50_gpio_fini;
 		engine->gpio.get		= nv50_gpio_get;
 		engine->gpio.set		= nv50_gpio_set;
 		engine->gpio.irq_enable		= nv50_gpio_irq_enable;

drivers/gpu/drm/nouveau/nv50_display.c

@@ -869,25 +869,6 @@ nv50_display_irq_handler(struct drm_device *dev)
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	uint32_t delayed = 0;
 
-	if (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_HOTPLUG) {
-		uint32_t hpd0_bits, hpd1_bits = 0;
-
-		hpd0_bits = nv_rd32(dev, 0xe054);
-		nv_wr32(dev, 0xe054, hpd0_bits);
-
-		if (dev_priv->chipset >= 0x90) {
-			hpd1_bits = nv_rd32(dev, 0xe074);
-			nv_wr32(dev, 0xe074, hpd1_bits);
-		}
-
-		spin_lock(&dev_priv->hpd_state.lock);
-		dev_priv->hpd_state.hpd0_bits |= hpd0_bits;
-		dev_priv->hpd_state.hpd1_bits |= hpd1_bits;
-		spin_unlock(&dev_priv->hpd_state.lock);
-
-		queue_work(dev_priv->wq, &dev_priv->hpd_work);
-	}
-
 	while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_DISPLAY) {
 		uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0);
 		uint32_t intr1 = nv_rd32(dev, NV50_PDISPLAY_INTR_1);

drivers/gpu/drm/nouveau/nv50_gpio.c

@@ -26,6 +26,8 @@
 #include "nouveau_drv.h"
 #include "nouveau_hw.h"
 
+static void nv50_gpio_isr(struct drm_device *dev);
+
 static int
 nv50_gpio_location(struct dcb_gpio_entry *gpio, uint32_t *reg, uint32_t *shift)
 {
@@ -107,5 +109,39 @@ nv50_gpio_init(struct drm_device *dev)
 		nv_wr32(dev, 0xe074, 0xffffffff);
 	}
 
+	nouveau_irq_register(dev, 21, nv50_gpio_isr);
 	return 0;
 }
+
+void
+nv50_gpio_fini(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+	nv_wr32(dev, 0xe050, 0x00000000);
+	if (dev_priv->chipset >= 0x90)
+		nv_wr32(dev, 0xe070, 0x00000000);
+	nouveau_irq_unregister(dev, 21);
+}
+
+static void
+nv50_gpio_isr(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	uint32_t hpd0_bits, hpd1_bits = 0;
+
+	hpd0_bits = nv_rd32(dev, 0xe054);
+	nv_wr32(dev, 0xe054, hpd0_bits);
+
+	if (dev_priv->chipset >= 0x90) {
+		hpd1_bits = nv_rd32(dev, 0xe074);
+		nv_wr32(dev, 0xe074, hpd1_bits);
+	}
+
+	spin_lock(&dev_priv->hpd_state.lock);
+	dev_priv->hpd_state.hpd0_bits |= hpd0_bits;
+	dev_priv->hpd_state.hpd1_bits |= hpd1_bits;
+	spin_unlock(&dev_priv->hpd_state.lock);
+
+	queue_work(dev_priv->wq, &dev_priv->hpd_work);
+}