static int fimc_lite_remove(struct platform_device *pdev)
{
struct fimc_lite *fimc = platform_get_drvdata(pdev);
struct device *dev = &pdev->dev;
pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
fimc_lite_unregister_capture_subdev(fimc);
vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx);
fimc_lite_clk_put(fimc);
dev_info(dev, "Driver unloaded\n");
return 0;
}
static int 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_ioremap_resource(&pdev->dev, res);
if (IS_ERR(fimc->regs))
return PTR_ERR(fimc->regs);
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;
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);
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;
}
static int fimc_lite_probe(struct platform_device *pdev)
{
struct flite_drvdata *drv_data = NULL;
struct device *dev = &pdev->dev;
const struct of_device_id *of_id;
struct fimc_lite *fimc;
struct resource *res;
int ret;
if (!dev->of_node)
return -ENODEV;
fimc = devm_kzalloc(dev, sizeof(*fimc), GFP_KERNEL);
if (!fimc)
return -ENOMEM;
of_id = of_match_node(flite_of_match, dev->of_node);
if (of_id)
drv_data = (struct flite_drvdata *)of_id->data;
fimc->index = of_alias_get_id(dev->of_node, "fimc-lite");
if (!drv_data || fimc->index >= drv_data->num_instances ||
fimc->index < 0) {
dev_err(dev, "Wrong %s node alias\n",
dev->of_node->full_name);
return -EINVAL;
}
fimc->dd = drv_data;
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_ioremap_resource(dev, res);
if (IS_ERR(fimc->regs))
return PTR_ERR(fimc->regs);
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res == NULL) {
dev_err(dev, "Failed to get IRQ resource\n");
return -ENXIO;
}
ret = fimc_lite_clk_get(fimc);
if (ret)
return ret;
ret = devm_request_irq(dev, res->start, flite_irq_handler,
0, dev_name(dev), fimc);
if (ret) {
dev_err(dev, "Failed to install irq (%d)\n", ret);
goto err_clk_put;
}
/* The video node will be created within the subdev's registered() op */
ret = fimc_lite_create_capture_subdev(fimc);
if (ret)
goto err_clk_put;
platform_set_drvdata(pdev, fimc);
pm_runtime_enable(dev);
if (!pm_runtime_enabled(dev)) {
ret = clk_enable(fimc->clock);
if (ret < 0)
goto err_sd;
}
fimc->alloc_ctx = vb2_dma_contig_init_ctx(dev);
if (IS_ERR(fimc->alloc_ctx)) {
ret = PTR_ERR(fimc->alloc_ctx);
goto err_clk_dis;
}
fimc_lite_set_default_config(fimc);
dev_dbg(dev, "FIMC-LITE.%d registered successfully\n",
fimc->index);
return 0;
err_clk_dis:
if (!pm_runtime_enabled(dev))
clk_disable(fimc->clock);
err_sd:
fimc_lite_unregister_capture_subdev(fimc);
err_clk_put:
fimc_lite_clk_put(fimc);
return ret;
}
