static int nouveau_platform_probe(struct platform_device *pdev) { struct nouveau_platform_gpu *gpu; struct nouveau_platform_device *device; struct drm_device *drm; int err; gpu = devm_kzalloc(&pdev->dev, sizeof(*gpu), GFP_KERNEL); if (!gpu) return -ENOMEM; gpu->vdd = devm_regulator_get(&pdev->dev, "vdd"); if (IS_ERR(gpu->vdd)) return PTR_ERR(gpu->vdd); gpu->rst = devm_reset_control_get(&pdev->dev, "gpu"); if (IS_ERR(gpu->rst)) return PTR_ERR(gpu->rst); gpu->clk = devm_clk_get(&pdev->dev, "gpu"); if (IS_ERR(gpu->clk)) return PTR_ERR(gpu->clk); gpu->clk_pwr = devm_clk_get(&pdev->dev, "pwr"); if (IS_ERR(gpu->clk_pwr)) return PTR_ERR(gpu->clk_pwr); err = nouveau_platform_power_up(gpu); if (err) return err; drm = nouveau_platform_device_create(pdev, &device); if (IS_ERR(drm)) { err = PTR_ERR(drm); goto power_down; } device->gpu = gpu; err = drm_dev_register(drm, 0); if (err < 0) goto err_unref; return 0; err_unref: drm_dev_unref(drm); return 0; power_down: nouveau_platform_power_down(gpu); return err; }
static int nouveau_platform_probe(struct platform_device *pdev) { struct nouveau_device *device; struct drm_device *drm; int ret; drm = nouveau_platform_device_create(pdev, &device); if (IS_ERR(drm)) return PTR_ERR(drm); ret = drm_dev_register(drm, 0); if (ret < 0) { drm_dev_unref(drm); return ret; } return 0; }