62 	int err;  in tegra_vde_alloc_bo()  local
82 		err = -ENOMEM;  in tegra_vde_alloc_bo()
86 	err = dma_get_sgtable_attrs(dev, &bo->sgt, bo->dma_cookie,  in tegra_vde_alloc_bo()
88 	if (err) {  in tegra_vde_alloc_bo()
89 		dev_err(dev, "Failed to get DMA buffer SG table: %d\n", err);  in tegra_vde_alloc_bo()
93 	err = dma_map_sgtable(dev, &bo->sgt, bo->dma_dir, bo->dma_attrs);  in tegra_vde_alloc_bo()
94 	if (err) {  in tegra_vde_alloc_bo()
95 		dev_err(dev, "Failed to map DMA buffer SG table: %d\n", err);  in tegra_vde_alloc_bo()
100 		err = tegra_vde_iommu_map(vde, &bo->sgt, &bo->iova, bo->size);  in tegra_vde_alloc_bo()
101 		if (err) {  in tegra_vde_alloc_bo()
102 			dev_err(dev, "Failed to map DMA buffer IOVA: %d\n", err);  in tegra_vde_alloc_bo()
125 	return err;  in tegra_vde_alloc_bo()
161 	int err;  in tegra_vde_runtime_suspend()  local
164 		err = tegra_powergate_power_off(TEGRA_POWERGATE_VDEC);  in tegra_vde_runtime_suspend()
165 		if (err) {  in tegra_vde_runtime_suspend()
166 			dev_err(dev, "Failed to power down HW: %d\n", err);  in tegra_vde_runtime_suspend()
167 			return err;  in tegra_vde_runtime_suspend()
181 	int err;  in tegra_vde_runtime_resume()  local
183 	err = reset_control_acquire(vde->rst_mc);  in tegra_vde_runtime_resume()
184 	if (err) {  in tegra_vde_runtime_resume()
185 		dev_err(dev, "Failed to acquire mc reset: %d\n", err);  in tegra_vde_runtime_resume()
186 		return err;  in tegra_vde_runtime_resume()
189 	err = reset_control_acquire(vde->rst);  in tegra_vde_runtime_resume()
190 	if (err) {  in tegra_vde_runtime_resume()
191 		dev_err(dev, "Failed to acquire reset: %d\n", err);  in tegra_vde_runtime_resume()
196 		err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_VDEC,  in tegra_vde_runtime_resume()
198 		if (err) {  in tegra_vde_runtime_resume()
199 			dev_err(dev, "Failed to power up HW : %d\n", err);  in tegra_vde_runtime_resume()
207 		err = clk_prepare_enable(vde->clk);  in tegra_vde_runtime_resume()
208 		if (err) {  in tegra_vde_runtime_resume()
209 			dev_err(dev, "Failed to enable clock: %d\n", err);  in tegra_vde_runtime_resume()
221 	return err;  in tegra_vde_runtime_resume()
228 	int irq, err;  in tegra_vde_probe()  local
277 		err = PTR_ERR(vde->clk);  in tegra_vde_probe()
278 		dev_err(dev, "Could not get VDE clk %d\n", err);  in tegra_vde_probe()
279 		return err;  in tegra_vde_probe()
284 		err = PTR_ERR(vde->rst);  in tegra_vde_probe()
285 		dev_err(dev, "Could not get VDE reset %d\n", err);  in tegra_vde_probe()
286 		return err;  in tegra_vde_probe()
291 		err = PTR_ERR(vde->rst_mc);  in tegra_vde_probe()
292 		dev_err(dev, "Could not get MC reset %d\n", err);  in tegra_vde_probe()
293 		return err;  in tegra_vde_probe()
300 	err = devm_request_irq(dev, irq, tegra_vde_isr, 0,  in tegra_vde_probe()
302 	if (err) {  in tegra_vde_probe()
303 		dev_err(dev, "Could not request IRQ %d\n", err);  in tegra_vde_probe()
304 		return err;  in tegra_vde_probe()
307 	err = devm_tegra_core_dev_init_opp_table_common(dev);  in tegra_vde_probe()
308 	if (err) {  in tegra_vde_probe()
309 		dev_err(dev, "Could initialize OPP table %d\n", err);  in tegra_vde_probe()
310 		return err;  in tegra_vde_probe()
332 	err = tegra_vde_iommu_init(vde);  in tegra_vde_probe()
333 	if (err) {  in tegra_vde_probe()
334 		dev_err(dev, "Failed to initialize IOMMU: %d\n", err);  in tegra_vde_probe()
347 	err = pm_runtime_resume_and_get(dev);  in tegra_vde_probe()
348 	if (err)  in tegra_vde_probe()
353 	err = tegra_vde_alloc_bo(vde, &vde->secure_bo, DMA_FROM_DEVICE, 4096);  in tegra_vde_probe()
354 	if (err) {  in tegra_vde_probe()
355 		dev_err(dev, "Failed to allocate secure BO: %d\n", err);  in tegra_vde_probe()
359 	err = tegra_vde_v4l2_init(vde);  in tegra_vde_probe()
360 	if (err) {  in tegra_vde_probe()
361 		dev_err(dev, "Failed to initialize V4L2: %d\n", err);  in tegra_vde_probe()
379 	return err;  in tegra_vde_probe()
425 	int err;  in tegra_vde_pm_suspend()  local
429 	err = pm_runtime_force_suspend(dev);  in tegra_vde_pm_suspend()
430 	if (err < 0)  in tegra_vde_pm_suspend()
431 		return err;  in tegra_vde_pm_suspend()
439 	int err;  in tegra_vde_pm_resume()  local
441 	err = pm_runtime_force_resume(dev);  in tegra_vde_pm_resume()
442 	if (err < 0)  in tegra_vde_pm_resume()
443 		return err;  in tegra_vde_pm_resume()