static int rcar_du_probe(struct platform_device *pdev)
{
struct rcar_du_device *rcdu;
struct drm_device *ddev;
struct resource *mem;
int ret;
/* Allocate and initialize the R-Car device structure. */
rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
if (rcdu == NULL)
return -ENOMEM;
rcdu->dev = &pdev->dev;
rcdu->info = of_device_get_match_data(rcdu->dev);
platform_set_drvdata(pdev, rcdu);
/* I/O resources */
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(rcdu->mmio))
return PTR_ERR(rcdu->mmio);
/* DRM/KMS objects */
ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
if (IS_ERR(ddev))
return PTR_ERR(ddev);
rcdu->ddev = ddev;
ddev->dev_private = rcdu;
ret = rcar_du_modeset_init(rcdu);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(&pdev->dev,
"failed to initialize DRM/KMS (%d)\n", ret);
goto error;
}
ddev->irq_enabled = 1;
/*
* Register the DRM device with the core and the connectors with
* sysfs.
*/
ret = drm_dev_register(ddev, 0);
if (ret)
goto error;
DRM_INFO("Device %s probed\n", dev_name(&pdev->dev));
drm_fbdev_generic_setup(ddev, 32);
return 0;
error:
rcar_du_remove(pdev);
return ret;
}
static int rcar_du_load(struct drm_device *dev, unsigned long flags)
{
struct platform_device *pdev = dev->platformdev;
struct device_node *np = pdev->dev.of_node;
struct rcar_du_device *rcdu;
struct resource *mem;
int ret;
if (np == NULL) {
dev_err(dev->dev, "no platform data\n");
return -ENODEV;
}
rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
if (rcdu == NULL) {
dev_err(dev->dev, "failed to allocate private data\n");
return -ENOMEM;
}
init_waitqueue_head(&rcdu->commit.wait);
rcdu->dev = &pdev->dev;
rcdu->info = np ? of_match_device(rcar_du_of_table, rcdu->dev)->data
: (void *)platform_get_device_id(pdev)->driver_data;
rcdu->ddev = dev;
dev->dev_private = rcdu;
/* I/O resources */
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(rcdu->mmio))
return PTR_ERR(rcdu->mmio);
/* Initialize vertical blanking interrupts handling. Start with vblank
* disabled for all CRTCs.
*/
ret = drm_vblank_init(dev, (1 << rcdu->info->num_crtcs) - 1);
if (ret < 0) {
dev_err(&pdev->dev, "failed to initialize vblank\n");
goto done;
}
/* DRM/KMS objects */
ret = rcar_du_modeset_init(rcdu);
if (ret < 0) {
dev_err(&pdev->dev, "failed to initialize DRM/KMS\n");
goto done;
}
dev->irq_enabled = 1;
platform_set_drvdata(pdev, rcdu);
done:
if (ret)
rcar_du_unload(dev);
return ret;
}
static int rcar_du_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct rcar_du_device *rcdu;
struct drm_connector *connector;
struct drm_device *ddev;
struct resource *mem;
int ret;
if (np == NULL) {
dev_err(&pdev->dev, "no device tree node\n");
return -ENODEV;
}
/* Allocate and initialize the DRM and R-Car device structures. */
rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
if (rcdu == NULL)
return -ENOMEM;
init_waitqueue_head(&rcdu->commit.wait);
rcdu->dev = &pdev->dev;
rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;
ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
if (!ddev)
return -ENOMEM;
drm_dev_set_unique(ddev, dev_name(&pdev->dev));
rcdu->ddev = ddev;
ddev->dev_private = rcdu;
platform_set_drvdata(pdev, rcdu);
/* I/O resources */
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(rcdu->mmio)) {
ret = PTR_ERR(rcdu->mmio);
goto error;
}
/* Initialize vertical blanking interrupts handling. Start with vblank
* disabled for all CRTCs.
*/
ret = drm_vblank_init(ddev, (1 << rcdu->info->num_crtcs) - 1);
if (ret < 0) {
dev_err(&pdev->dev, "failed to initialize vblank\n");
goto error;
}
/* DRM/KMS objects */
ret = rcar_du_modeset_init(rcdu);
if (ret < 0) {
dev_err(&pdev->dev, "failed to initialize DRM/KMS (%d)\n", ret);
goto error;
}
ddev->irq_enabled = 1;
/* Register the DRM device with the core and the connectors with
* sysfs.
*/
ret = drm_dev_register(ddev, 0);
if (ret)
goto error;
mutex_lock(&ddev->mode_config.mutex);
drm_for_each_connector(connector, ddev) {
ret = drm_connector_register(connector);
if (ret < 0)
break;
}
