1 files changed, 31 insertions, 58 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
index d0d52c1d4aee..03aa6f09ec89 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
@@ -41,11 +41,9 @@ nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev)
 	ret = clk_prepare_enable(tdev->clk);
 	if (ret)
 		goto err_clk;
-	if (tdev->clk_ref) {
-		ret = clk_prepare_enable(tdev->clk_ref);
-		if (ret)
-			goto err_clk_ref;
-	}
+	ret = clk_prepare_enable(tdev->clk_ref);
+	if (ret)
+		goto err_clk_ref;
 	ret = clk_prepare_enable(tdev->clk_pwr);
 	if (ret)
 		goto err_clk_pwr;
@@ -70,8 +68,7 @@ nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev)
 err_clamp:
 	clk_disable_unprepare(tdev->clk_pwr);
 err_clk_pwr:
-	if (tdev->clk_ref)
-		clk_disable_unprepare(tdev->clk_ref);
+	clk_disable_unprepare(tdev->clk_ref);
 err_clk_ref:
 	clk_disable_unprepare(tdev->clk);
 err_clk:
@@ -87,8 +84,7 @@ nvkm_device_tegra_power_down(struct nvkm_device_tegra *tdev)
 	int ret;
 
 	clk_disable_unprepare(tdev->clk_pwr);
-	if (tdev->clk_ref)
-		clk_disable_unprepare(tdev->clk_ref);
+	clk_disable_unprepare(tdev->clk_ref);
 	clk_disable_unprepare(tdev->clk);
 	udelay(10);
 
@@ -123,9 +119,9 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)
 
 	mutex_init(&tdev->iommu.mutex);
 
-	if (iommu_present(&platform_bus_type)) {
-		tdev->iommu.domain = iommu_domain_alloc(&platform_bus_type);
-		if (!tdev->iommu.domain)
+	if (device_iommu_mapped(dev)) {
+		tdev->iommu.domain = iommu_paging_domain_alloc(dev);
+		if (IS_ERR(tdev->iommu.domain))
 			goto error;
 
 		/*
@@ -133,7 +129,7 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)
 		 * or equal to the system's PAGE_SIZE, with a preference if
 		 * both are equal.
 		 */
-		pgsize_bitmap = tdev->iommu.domain->ops->pgsize_bitmap;
+		pgsize_bitmap = tdev->iommu.domain->pgsize_bitmap;
 		if (pgsize_bitmap & PAGE_SIZE) {
 			tdev->iommu.pgshift = PAGE_SHIFT;
 		} else {
@@ -190,65 +186,42 @@ nvkm_device_tegra(struct nvkm_device *device)
 }
 
 static struct resource *
-nvkm_device_tegra_resource(struct nvkm_device *device, unsigned bar)
+nvkm_device_tegra_resource(struct nvkm_device *device, enum nvkm_bar_id bar)
 {
 	struct nvkm_device_tegra *tdev = nvkm_device_tegra(device);
-	return platform_get_resource(tdev->pdev, IORESOURCE_MEM, bar);
+	int idx;
+
+	switch (bar) {
+	case NVKM_BAR0_PRI: idx = 0; break;
+	case NVKM_BAR1_FB : idx = 1; break;
+	default:
+		WARN_ON(1);
+		return NULL;
+	}
+
+	return platform_get_resource(tdev->pdev, IORESOURCE_MEM, idx);
 }
 
 static resource_size_t
-nvkm_device_tegra_resource_addr(struct nvkm_device *device, unsigned bar)
+nvkm_device_tegra_resource_addr(struct nvkm_device *device, enum nvkm_bar_id bar)
 {
 	struct resource *res = nvkm_device_tegra_resource(device, bar);
 	return res ? res->start : 0;
 }
 
 static resource_size_t
-nvkm_device_tegra_resource_size(struct nvkm_device *device, unsigned bar)
+nvkm_device_tegra_resource_size(struct nvkm_device *device, enum nvkm_bar_id bar)
 {
 	struct resource *res = nvkm_device_tegra_resource(device, bar);
 	return res ? resource_size(res) : 0;
 }
 
-static irqreturn_t
-nvkm_device_tegra_intr(int irq, void *arg)
-{
-	struct nvkm_device_tegra *tdev = arg;
-	struct nvkm_device *device = &tdev->device;
-	bool handled = false;
-	nvkm_mc_intr_unarm(device);
-	nvkm_mc_intr(device, &handled);
-	nvkm_mc_intr_rearm(device);
-	return handled ? IRQ_HANDLED : IRQ_NONE;
-}
-
-static void
-nvkm_device_tegra_fini(struct nvkm_device *device, bool suspend)
-{
-	struct nvkm_device_tegra *tdev = nvkm_device_tegra(device);
-	if (tdev->irq) {
-		free_irq(tdev->irq, tdev);
-		tdev->irq = 0;
-	}
-}
-
 static int
-nvkm_device_tegra_init(struct nvkm_device *device)
+nvkm_device_tegra_irq(struct nvkm_device *device)
 {
 	struct nvkm_device_tegra *tdev = nvkm_device_tegra(device);
-	int irq, ret;
-
-	irq = platform_get_irq_byname(tdev->pdev, "stall");
-	if (irq < 0)
-		return irq;
 
-	ret = request_irq(irq, nvkm_device_tegra_intr,
-			  IRQF_SHARED, "nvkm", tdev);
-	if (ret)
-		return ret;
-
-	tdev->irq = irq;
-	return 0;
+	return platform_get_irq_byname(tdev->pdev, "stall");
 }
 
 static void *
@@ -264,8 +237,7 @@ static const struct nvkm_device_func
 nvkm_device_tegra_func = {
 	.tegra = nvkm_device_tegra,
 	.dtor = nvkm_device_tegra_dtor,
-	.init = nvkm_device_tegra_init,
-	.fini = nvkm_device_tegra_fini,
+	.irq = nvkm_device_tegra_irq,
 	.resource_addr = nvkm_device_tegra_resource_addr,
 	.resource_size = nvkm_device_tegra_resource_size,
 	.cpu_coherent = false,
@@ -275,7 +247,6 @@ int
 nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func,
 		      struct platform_device *pdev,
 		      const char *cfg, const char *dbg,
-		      bool detect, bool mmio, u64 subdev_mask,
 		      struct nvkm_device **pdevice)
 {
 	struct nvkm_device_tegra *tdev;
@@ -288,6 +259,10 @@ nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func,
 	tdev->func = func;
 	tdev->pdev = pdev;
 
+	tdev->regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(tdev->regs))
+		return PTR_ERR(tdev->regs);
+
 	if (func->require_vdd) {
 		tdev->vdd = devm_regulator_get(&pdev->dev, "vdd");
 		if (IS_ERR(tdev->vdd)) {
@@ -349,8 +324,7 @@ nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func,
 	tdev->gpu_speedo_id = tegra_sku_info.gpu_speedo_id;
 	ret = nvkm_device_ctor(&nvkm_device_tegra_func, NULL, &pdev->dev,
 			       NVKM_DEVICE_TEGRA, pdev->id, NULL,
-			       cfg, dbg, detect, mmio, subdev_mask,
-			       &tdev->device);
+			       cfg, dbg, &tdev->device);
 	if (ret)
 		goto powerdown;
 
@@ -371,7 +345,6 @@ int
 nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func,
 		      struct platform_device *pdev,
 		      const char *cfg, const char *dbg,
-		      bool detect, bool mmio, u64 subdev_mask,
 		      struct nvkm_device **pdevice)
 {
 	return -ENOSYS;