int s5p_mfc_power_on(void)
{
#ifdef CONFIG_PM_RUNTIME
int ret;
ret = pm_runtime_get_sync(pm->device);
if (ret < 0)
goto out;
ret = platform_sysmmu_on(p_dev->mem_dev_l);
if (ret < 0)
goto out_err;
ret = platform_sysmmu_on(p_dev->mem_dev_r);
if (ret < 0)
goto out_err2;
return ret;
out_err2:
platform_sysmmu_off(p_dev->mem_dev_l);
out_err:
pm_runtime_put_sync(pm->device);
out:
return ret;
#else
atomic_set(&pm->power, 1);
return 0;
#endif
}
static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct gsc_ctx *ctx = q->drv_priv;
struct device *dev = &ctx->gsc_dev->pdev->dev;
int ret;
ret = pm_runtime_get_sync(dev);
if (ret < 0)
return ret;
ret = platform_sysmmu_on(dev);
if (ret < 0)
pm_runtime_put_sync(dev);
return ret > 0 ? 0 : ret;
}
static int fimc_lite_open(struct file *file)
{
struct fimc_lite *fimc = video_drvdata(file);
int ret;
if (mutex_lock_interruptible(&fimc->lock))
return -ERESTARTSYS;
set_bit(ST_FLITE_IN_USE, &fimc->state);
ret = pm_runtime_get_sync(&fimc->pdev->dev);
if (ret < 0)
goto done;
ret = platform_sysmmu_on(&fimc->pdev->dev);
if (ret < 0)
goto err_pm;
ret = v4l2_fh_open(file);
if (ret < 0)
goto done;
if (++fimc->ref_count == 1 && fimc->out_path == FIMC_IO_DMA) {
ret = fimc_pipeline_initialize(&fimc->pipeline,
&fimc->vfd->entity, true);
if (ret < 0) {
pm_runtime_put_sync(&fimc->pdev->dev);
fimc->ref_count--;
v4l2_fh_release(file);
clear_bit(ST_FLITE_IN_USE, &fimc->state);
}
fimc_lite_clear_event_counters(fimc);
}
err_pm:
pm_runtime_put(&fimc->pdev->dev);
done:
mutex_unlock(&fimc->lock);
return ret;
}
static int __devinit fimc_lite_probe(struct platform_device *pdev)
{
struct flite_drvdata *drv_data = fimc_lite_get_drvdata(pdev);
struct fimc_lite *fimc;
struct resource *res;
int ret;
fimc = devm_kzalloc(&pdev->dev, sizeof(*fimc), GFP_KERNEL);
if (!fimc)
return -ENOMEM;
fimc->index = pdev->id;
fimc->variant = drv_data->variant[fimc->index];
fimc->pdev = pdev;
init_waitqueue_head(&fimc->irq_queue);
spin_lock_init(&fimc->slock);
mutex_init(&fimc->lock);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
if (fimc->regs == NULL) {
dev_err(&pdev->dev, "Failed to obtain io memory\n");
return -ENOENT;
}
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res == NULL) {
dev_err(&pdev->dev, "Failed to get IRQ resource\n");
return -ENXIO;
}
ret = fimc_lite_clk_get(fimc);
if (ret)
return ret;
ret = devm_request_irq(&pdev->dev, res->start, flite_irq_handler,
0, dev_name(&pdev->dev), fimc);
if (ret) {
dev_err(&pdev->dev, "Failed to install irq (%d)\n", ret);
goto err_clk;
}
/* The video node will be created within the subdev's registered() op */
ret = fimc_lite_create_capture_subdev(fimc);
if (ret)
goto err_clk;
platform_set_drvdata(pdev, fimc);
pm_runtime_enable(&pdev->dev);
ret = pm_runtime_get_sync(&pdev->dev);
if (ret < 0)
goto err_sd;
ret = platform_sysmmu_on(&pdev->dev);
if (ret < 0)
goto err_pm;
fimc->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
if (IS_ERR(fimc->alloc_ctx)) {
ret = PTR_ERR(fimc->alloc_ctx);
goto err_pm;
}
pm_runtime_put(&pdev->dev);
platform_sysmmu_off(&pdev->dev);
dev_dbg(&pdev->dev, "FIMC-LITE.%d registered successfully\n",
fimc->index);
return 0;
err_pm:
pm_runtime_put(&pdev->dev);
err_sd:
fimc_lite_unregister_capture_subdev(fimc);
err_clk:
fimc_lite_clk_put(fimc);
return ret;
}
