diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_drv.c | 313 |
1 files changed, 137 insertions, 176 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 443a2069858..121470a83d1 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -87,16 +87,12 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) plane = exynos_plane_init(dev, possible_crtcs, DRM_PLANE_TYPE_OVERLAY); - if (IS_ERR(plane)) - goto err_mode_config_cleanup; - } - - /* init kms poll for handling hpd */ - drm_kms_helper_poll_init(dev); + if (!IS_ERR(plane)) + continue; - ret = drm_vblank_init(dev, MAX_CRTC); - if (ret) + ret = PTR_ERR(plane); goto err_mode_config_cleanup; + } /* setup possible_clones. */ exynos_drm_encoder_setup(dev); @@ -106,15 +102,16 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) /* Try to bind all sub drivers. */ ret = component_bind_all(dev->dev, dev); if (ret) - goto err_cleanup_vblank; + goto err_mode_config_cleanup; - /* Probe non kms sub drivers and virtual display driver. */ - ret = exynos_drm_device_subdrv_probe(dev); + ret = drm_vblank_init(dev, dev->mode_config.num_crtc); if (ret) goto err_unbind_all; - /* force connectors detection */ - drm_helper_hpd_irq_event(dev); + /* Probe non kms sub drivers and virtual display driver. */ + ret = exynos_drm_device_subdrv_probe(dev); + if (ret) + goto err_cleanup_vblank; /* * enable drm irq mode. @@ -133,12 +130,18 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) */ dev->vblank_disable_allowed = true; + /* init kms poll for handling hpd */ + drm_kms_helper_poll_init(dev); + + /* force connectors detection */ + drm_helper_hpd_irq_event(dev); + return 0; -err_unbind_all: - component_unbind_all(dev->dev, dev); err_cleanup_vblank: drm_vblank_cleanup(dev); +err_unbind_all: + component_unbind_all(dev->dev, dev); err_mode_config_cleanup: drm_mode_config_cleanup(dev); drm_release_iommu_mapping(dev); @@ -155,8 +158,8 @@ static int exynos_drm_unload(struct drm_device *dev) exynos_drm_fbdev_fini(dev); drm_kms_helper_poll_fini(dev); - component_unbind_all(dev->dev, dev); drm_vblank_cleanup(dev); + component_unbind_all(dev->dev, dev); drm_mode_config_cleanup(dev); drm_release_iommu_mapping(dev); @@ -191,13 +194,15 @@ static int exynos_drm_resume(struct drm_device *dev) drm_modeset_lock_all(dev); list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - if (connector->funcs->dpms) - connector->funcs->dpms(connector, connector->dpms); + if (connector->funcs->dpms) { + int dpms = connector->dpms; + + connector->dpms = DRM_MODE_DPMS_OFF; + connector->funcs->dpms(connector, dpms); + } } drm_modeset_unlock_all(dev); - drm_helper_resume_force_mode(dev); - return 0; } @@ -468,8 +473,6 @@ void exynos_drm_component_del(struct device *dev, list_del(&cdev->list); kfree(cdev); } - - break; } mutex_unlock(&drm_component_lock); @@ -488,6 +491,12 @@ static struct component_match *exynos_drm_match_add(struct device *dev) mutex_lock(&drm_component_lock); + /* Do not retry to probe if there is no any kms driver regitered. */ + if (list_empty(&drm_component_list)) { + mutex_unlock(&drm_component_lock); + return ERR_PTR(-ENODEV); + } + list_for_each_entry(cdev, &drm_component_list, list) { /* * Add components to master only in case that crtc and @@ -543,188 +552,72 @@ static const struct component_master_ops exynos_drm_ops = { .unbind = exynos_drm_unbind, }; -static int exynos_drm_platform_probe(struct platform_device *pdev) -{ - struct component_match *match; - int ret; - - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls); - +static struct platform_driver *const exynos_drm_kms_drivers[] = { #ifdef CONFIG_DRM_EXYNOS_FIMD - ret = platform_driver_register(&fimd_driver); - if (ret < 0) - return ret; + &fimd_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_DP - ret = platform_driver_register(&dp_driver); - if (ret < 0) - goto err_unregister_fimd_drv; + &dp_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_DSI - ret = platform_driver_register(&dsi_driver); - if (ret < 0) - goto err_unregister_dp_drv; + &dsi_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_HDMI - ret = platform_driver_register(&mixer_driver); - if (ret < 0) - goto err_unregister_dsi_drv; - ret = platform_driver_register(&hdmi_driver); - if (ret < 0) - goto err_unregister_mixer_drv; + &mixer_driver, + &hdmi_driver, #endif +}; +static struct platform_driver *const exynos_drm_non_kms_drivers[] = { #ifdef CONFIG_DRM_EXYNOS_G2D - ret = platform_driver_register(&g2d_driver); - if (ret < 0) - goto err_unregister_hdmi_drv; + &g2d_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_FIMC - ret = platform_driver_register(&fimc_driver); - if (ret < 0) - goto err_unregister_g2d_drv; + &fimc_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_ROTATOR - ret = platform_driver_register(&rotator_driver); - if (ret < 0) - goto err_unregister_fimc_drv; + &rotator_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_GSC - ret = platform_driver_register(&gsc_driver); - if (ret < 0) - goto err_unregister_rotator_drv; + &gsc_driver, #endif - #ifdef CONFIG_DRM_EXYNOS_IPP - ret = platform_driver_register(&ipp_driver); - if (ret < 0) - goto err_unregister_gsc_drv; - - ret = exynos_platform_device_ipp_register(); - if (ret < 0) - goto err_unregister_ipp_drv; + &ipp_driver, #endif +}; + +static int exynos_drm_platform_probe(struct platform_device *pdev) +{ + struct component_match *match; + + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls); match = exynos_drm_match_add(&pdev->dev); if (IS_ERR(match)) { - ret = PTR_ERR(match); - goto err_unregister_resources; + return PTR_ERR(match); } - ret = component_master_add_with_match(&pdev->dev, &exynos_drm_ops, - match); - if (ret < 0) - goto err_unregister_resources; - - return ret; - -err_unregister_resources: - -#ifdef CONFIG_DRM_EXYNOS_IPP - exynos_platform_device_ipp_unregister(); -err_unregister_ipp_drv: - platform_driver_unregister(&ipp_driver); -err_unregister_gsc_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_GSC - platform_driver_unregister(&gsc_driver); -err_unregister_rotator_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_ROTATOR - platform_driver_unregister(&rotator_driver); -err_unregister_fimc_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_FIMC - platform_driver_unregister(&fimc_driver); -err_unregister_g2d_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_G2D - platform_driver_unregister(&g2d_driver); -err_unregister_hdmi_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_HDMI - platform_driver_unregister(&hdmi_driver); -err_unregister_mixer_drv: - platform_driver_unregister(&mixer_driver); -err_unregister_dsi_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_DSI - platform_driver_unregister(&dsi_driver); -err_unregister_dp_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_DP - platform_driver_unregister(&dp_driver); -err_unregister_fimd_drv: -#endif - -#ifdef CONFIG_DRM_EXYNOS_FIMD - platform_driver_unregister(&fimd_driver); -#endif - return ret; + return component_master_add_with_match(&pdev->dev, &exynos_drm_ops, + match); } static int exynos_drm_platform_remove(struct platform_device *pdev) { -#ifdef CONFIG_DRM_EXYNOS_IPP - exynos_platform_device_ipp_unregister(); - platform_driver_unregister(&ipp_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_GSC - platform_driver_unregister(&gsc_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_ROTATOR - platform_driver_unregister(&rotator_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_FIMC - platform_driver_unregister(&fimc_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_G2D - platform_driver_unregister(&g2d_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_HDMI - platform_driver_unregister(&mixer_driver); - platform_driver_unregister(&hdmi_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_FIMD - platform_driver_unregister(&fimd_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_DSI - platform_driver_unregister(&dsi_driver); -#endif - -#ifdef CONFIG_DRM_EXYNOS_DP - platform_driver_unregister(&dp_driver); -#endif component_master_del(&pdev->dev, &exynos_drm_ops); return 0; } +static const char * const strings[] = { + "samsung,exynos3", + "samsung,exynos4", + "samsung,exynos5", +}; + static struct platform_driver exynos_drm_platform_driver = { .probe = exynos_drm_platform_probe, .remove = exynos_drm_platform_remove, .driver = { - .owner = THIS_MODULE, .name = "exynos-drm", .pm = &exynos_drm_pm_ops, }, @@ -732,31 +625,87 @@ static struct platform_driver exynos_drm_platform_driver = { static int exynos_drm_init(void) { - int ret; + bool is_exynos = false; + int ret, i, j; + + /* + * Register device object only in case of Exynos SoC. + * + * Below codes resolves temporarily infinite loop issue incurred + * by Exynos drm driver when using multi-platform kernel. + * So these codes will be replaced with more generic way later. + */ + for (i = 0; i < ARRAY_SIZE(strings); i++) { + if (of_machine_is_compatible(strings[i])) { + is_exynos = true; + break; + } + } + + if (!is_exynos) + return -ENODEV; + + /* + * Register device object only in case of Exynos SoC. + * + * Below codes resolves temporarily infinite loop issue incurred + * by Exynos drm driver when using multi-platform kernel. + * So these codes will be replaced with more generic way later. + */ + if (!of_machine_is_compatible("samsung,exynos3") && + !of_machine_is_compatible("samsung,exynos4") && + !of_machine_is_compatible("samsung,exynos5")) + return -ENODEV; exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1, NULL, 0); if (IS_ERR(exynos_drm_pdev)) return PTR_ERR(exynos_drm_pdev); -#ifdef CONFIG_DRM_EXYNOS_VIDI ret = exynos_drm_probe_vidi(); if (ret < 0) goto err_unregister_pd; + + for (i = 0; i < ARRAY_SIZE(exynos_drm_kms_drivers); ++i) { + ret = platform_driver_register(exynos_drm_kms_drivers[i]); + if (ret < 0) + goto err_unregister_kms_drivers; + } + + for (j = 0; j < ARRAY_SIZE(exynos_drm_non_kms_drivers); ++j) { + ret = platform_driver_register(exynos_drm_non_kms_drivers[j]); + if (ret < 0) + goto err_unregister_non_kms_drivers; + } + +#ifdef CONFIG_DRM_EXYNOS_IPP + ret = exynos_platform_device_ipp_register(); + if (ret < 0) + goto err_unregister_non_kms_drivers; #endif ret = platform_driver_register(&exynos_drm_platform_driver); if (ret) - goto err_remove_vidi; + goto err_unregister_resources; return 0; -err_remove_vidi: -#ifdef CONFIG_DRM_EXYNOS_VIDI +err_unregister_resources: +#ifdef CONFIG_DRM_EXYNOS_IPP + exynos_platform_device_ipp_unregister(); +#endif + +err_unregister_non_kms_drivers: + while (--j >= 0) + platform_driver_unregister(exynos_drm_non_kms_drivers[j]); + +err_unregister_kms_drivers: + while (--i >= 0) + platform_driver_unregister(exynos_drm_kms_drivers[i]); + exynos_drm_remove_vidi(); err_unregister_pd: -#endif platform_device_unregister(exynos_drm_pdev); return ret; @@ -764,10 +713,22 @@ err_unregister_pd: static void exynos_drm_exit(void) { + int i; + +#ifdef CONFIG_DRM_EXYNOS_IPP + exynos_platform_device_ipp_unregister(); +#endif + + for (i = ARRAY_SIZE(exynos_drm_non_kms_drivers) - 1; i >= 0; --i) + platform_driver_unregister(exynos_drm_non_kms_drivers[i]); + + for (i = ARRAY_SIZE(exynos_drm_kms_drivers) - 1; i >= 0; --i) + platform_driver_unregister(exynos_drm_kms_drivers[i]); + platform_driver_unregister(&exynos_drm_platform_driver); -#ifdef CONFIG_DRM_EXYNOS_VIDI + exynos_drm_remove_vidi(); -#endif + platform_device_unregister(exynos_drm_pdev); } |