#include <drm/drm_crtc_helper.h>
#include <drm/drm_gem_cma_helper.h>
-#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
#include "shmob_drm_plane.h"
* DRM operations
*/
-static void shmob_drm_unload(struct drm_device *dev)
-{
- drm_kms_helper_poll_fini(dev);
- drm_mode_config_cleanup(dev);
- drm_vblank_cleanup(dev);
- drm_irq_uninstall(dev);
-
- dev->dev_private = NULL;
-}
-
-static int shmob_drm_load(struct drm_device *dev, unsigned long flags)
-{
- struct shmob_drm_platform_data *pdata = dev->dev->platform_data;
- struct platform_device *pdev = dev->platformdev;
- struct shmob_drm_device *sdev;
- struct resource *res;
- unsigned int i;
- int ret;
-
- if (pdata == NULL) {
- dev_err(dev->dev, "no platform data\n");
- return -EINVAL;
- }
-
- sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL);
- if (sdev == NULL) {
- dev_err(dev->dev, "failed to allocate private data\n");
- return -ENOMEM;
- }
-
- sdev->dev = &pdev->dev;
- sdev->pdata = pdata;
- spin_lock_init(&sdev->irq_lock);
-
- sdev->ddev = dev;
- dev->dev_private = sdev;
-
- /* I/O resources and clocks */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "failed to get memory resource\n");
- return -EINVAL;
- }
-
- sdev->mmio = devm_ioremap_nocache(&pdev->dev, res->start,
- resource_size(res));
- if (sdev->mmio == NULL) {
- dev_err(&pdev->dev, "failed to remap memory resource\n");
- return -ENOMEM;
- }
-
- ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
- if (ret < 0)
- return ret;
-
- ret = shmob_drm_init_interface(sdev);
- if (ret < 0)
- return ret;
-
- ret = shmob_drm_modeset_init(sdev);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to initialize mode setting\n");
- return ret;
- }
-
- for (i = 0; i < 4; ++i) {
- ret = shmob_drm_plane_create(sdev, i);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to create plane %u\n", i);
- goto done;
- }
- }
-
- ret = drm_vblank_init(dev, 1);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to initialize vblank\n");
- goto done;
- }
-
- ret = drm_irq_install(dev, platform_get_irq(dev->platformdev, 0));
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to install IRQ handler\n");
- goto done;
- }
-
- platform_set_drvdata(pdev, sdev);
-
-done:
- if (ret)
- shmob_drm_unload(dev);
-
- return ret;
-}
-
static irqreturn_t shmob_drm_irq(int irq, void *arg)
{
struct drm_device *dev = arg;
return IRQ_HANDLED;
}
-static int shmob_drm_enable_vblank(struct drm_device *dev, unsigned int pipe)
-{
- struct shmob_drm_device *sdev = dev->dev_private;
-
- shmob_drm_crtc_enable_vblank(sdev, true);
-
- return 0;
-}
-
-static void shmob_drm_disable_vblank(struct drm_device *dev, unsigned int pipe)
-{
- struct shmob_drm_device *sdev = dev->dev_private;
-
- shmob_drm_crtc_enable_vblank(sdev, false);
-}
-
-static const struct file_operations shmob_drm_fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .compat_ioctl = drm_compat_ioctl,
- .poll = drm_poll,
- .read = drm_read,
- .llseek = no_llseek,
- .mmap = drm_gem_cma_mmap,
-};
+DEFINE_DRM_GEM_CMA_FOPS(shmob_drm_fops);
static struct drm_driver shmob_drm_driver = {
.driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET
| DRIVER_PRIME,
- .load = shmob_drm_load,
- .unload = shmob_drm_unload,
.irq_handler = shmob_drm_irq,
- .get_vblank_counter = drm_vblank_no_hw_counter,
- .enable_vblank = shmob_drm_enable_vblank,
- .disable_vblank = shmob_drm_disable_vblank,
.gem_free_object_unlocked = drm_gem_cma_free_object,
.gem_vm_ops = &drm_gem_cma_vm_ops,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
* Platform driver
*/
-static int shmob_drm_probe(struct platform_device *pdev)
+static int shmob_drm_remove(struct platform_device *pdev)
{
- return drm_platform_init(&shmob_drm_driver, pdev);
+ struct shmob_drm_device *sdev = platform_get_drvdata(pdev);
+ struct drm_device *ddev = sdev->ddev;
+
+ drm_dev_unregister(ddev);
+ drm_kms_helper_poll_fini(ddev);
+ drm_mode_config_cleanup(ddev);
+ drm_irq_uninstall(ddev);
+ drm_dev_unref(ddev);
+
+ return 0;
}
-static int shmob_drm_remove(struct platform_device *pdev)
+static int shmob_drm_probe(struct platform_device *pdev)
{
- struct shmob_drm_device *sdev = platform_get_drvdata(pdev);
+ struct shmob_drm_platform_data *pdata = pdev->dev.platform_data;
+ struct shmob_drm_device *sdev;
+ struct drm_device *ddev;
+ struct resource *res;
+ unsigned int i;
+ int ret;
+
+ if (pdata == NULL) {
+ dev_err(&pdev->dev, "no platform data\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Allocate and initialize the driver private data, I/O resources and
+ * clocks.
+ */
+ sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL);
+ if (sdev == NULL)
+ return -ENOMEM;
- drm_put_dev(sdev->ddev);
+ sdev->dev = &pdev->dev;
+ sdev->pdata = pdata;
+ spin_lock_init(&sdev->irq_lock);
+
+ platform_set_drvdata(pdev, sdev);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ sdev->mmio = devm_ioremap_resource(&pdev->dev, res);
+ if (sdev->mmio == NULL)
+ return -ENOMEM;
+
+ ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
+ if (ret < 0)
+ return ret;
+
+ ret = shmob_drm_init_interface(sdev);
+ if (ret < 0)
+ return ret;
+
+ /* Allocate and initialize the DRM device. */
+ ddev = drm_dev_alloc(&shmob_drm_driver, &pdev->dev);
+ if (IS_ERR(ddev))
+ return PTR_ERR(ddev);
+
+ sdev->ddev = ddev;
+ ddev->dev_private = sdev;
+
+ ret = shmob_drm_modeset_init(sdev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to initialize mode setting\n");
+ goto err_free_drm_dev;
+ }
+
+ for (i = 0; i < 4; ++i) {
+ ret = shmob_drm_plane_create(sdev, i);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to create plane %u\n", i);
+ goto err_modeset_cleanup;
+ }
+ }
+
+ ret = drm_vblank_init(ddev, 1);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to initialize vblank\n");
+ goto err_modeset_cleanup;
+ }
+
+ ret = drm_irq_install(ddev, platform_get_irq(pdev, 0));
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to install IRQ handler\n");
+ goto err_vblank_cleanup;
+ }
+
+ /*
+ * Register the DRM device with the core and the connectors with
+ * sysfs.
+ */
+ ret = drm_dev_register(ddev, 0);
+ if (ret < 0)
+ goto err_irq_uninstall;
return 0;
+
+err_irq_uninstall:
+ drm_irq_uninstall(ddev);
+err_vblank_cleanup:
+ drm_vblank_cleanup(ddev);
+err_modeset_cleanup:
+ drm_kms_helper_poll_fini(ddev);
+ drm_mode_config_cleanup(ddev);
+err_free_drm_dev:
+ drm_dev_unref(ddev);
+
+ return ret;
}
static struct platform_driver shmob_drm_platform_driver = {
projects / karo-tx-linux.git / blobdiff