diff options
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_drv.c')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.c | 93 |
1 files changed, 61 insertions, 32 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 6228ce603248..6500f3999c5f 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -29,6 +29,17 @@ * DRM operations: */ +static struct device_node *etnaviv_of_first_available_node(void) +{ + struct device_node *np; + + for_each_compatible_node(np, NULL, "vivante,gc") { + if (of_device_is_available(np)) + return np; + } + + return NULL; +} static void load_gpu(struct drm_device *dev) { @@ -79,7 +90,7 @@ static int etnaviv_open(struct drm_device *dev, struct drm_file *file) drm_sched_entity_init(&ctx->sched_entity[i], DRM_SCHED_PRIORITY_NORMAL, &sched, 1, NULL); - } + } } file->driver_priv = ctx; @@ -233,11 +244,11 @@ static int show_each_gpu(struct seq_file *m, void *arg) } static struct drm_info_list etnaviv_debugfs_list[] = { - {"gpu", show_each_gpu, 0, etnaviv_gpu_debugfs}, - {"gem", show_unlocked, 0, etnaviv_gem_show}, - { "mm", show_unlocked, 0, etnaviv_mm_show }, - {"mmu", show_each_gpu, 0, etnaviv_mmu_show}, - {"ring", show_each_gpu, 0, etnaviv_ring_show}, + {"gpu", show_each_gpu, 0, etnaviv_gpu_debugfs}, + {"gem", show_unlocked, 0, etnaviv_gem_show}, + { "mm", show_unlocked, 0, etnaviv_mm_show }, + {"mmu", show_each_gpu, 0, etnaviv_mmu_show}, + {"ring", show_each_gpu, 0, etnaviv_ring_show}, }; static void etnaviv_debugfs_init(struct drm_minor *minor) @@ -494,7 +505,7 @@ static const struct drm_driver etnaviv_drm_driver = { .desc = "etnaviv DRM", .date = "20151214", .major = 1, - .minor = 3, + .minor = 4, }; /* @@ -597,9 +608,6 @@ static int etnaviv_pdev_probe(struct platform_device *pdev) if (!of_device_is_available(core_node)) continue; - if (!first_node) - first_node = core_node; - drm_of_component_match_add(&pdev->dev, &match, component_compare_of, core_node); } @@ -634,8 +642,11 @@ static int etnaviv_pdev_probe(struct platform_device *pdev) * device as the GPU we found. This assumes that all Vivante * GPUs in the system share the same DMA constraints. */ - if (first_node) + first_node = etnaviv_of_first_available_node(); + if (first_node) { of_dma_configure(&pdev->dev, first_node, true); + of_node_put(first_node); + } return component_master_add_with_match(dev, &etnaviv_master_ops, match); } @@ -653,11 +664,43 @@ static struct platform_driver etnaviv_platform_driver = { }, }; +static int etnaviv_create_platform_device(const char *name, + struct platform_device **ppdev) +{ + struct platform_device *pdev; + int ret; + + pdev = platform_device_alloc(name, PLATFORM_DEVID_NONE); + if (!pdev) + return -ENOMEM; + + ret = platform_device_add(pdev); + if (ret) { + platform_device_put(pdev); + return ret; + } + + *ppdev = pdev; + + return 0; +} + +static void etnaviv_destroy_platform_device(struct platform_device **ppdev) +{ + struct platform_device *pdev = *ppdev; + + if (!pdev) + return; + + platform_device_unregister(pdev); + + *ppdev = NULL; +} + static struct platform_device *etnaviv_drm; static int __init etnaviv_init(void) { - struct platform_device *pdev; int ret; struct device_node *np; @@ -675,27 +718,13 @@ static int __init etnaviv_init(void) * If the DT contains at least one available GPU device, instantiate * the DRM platform device. */ - for_each_compatible_node(np, NULL, "vivante,gc") { - if (!of_device_is_available(np)) - continue; - - pdev = platform_device_alloc("etnaviv", PLATFORM_DEVID_NONE); - if (!pdev) { - ret = -ENOMEM; - of_node_put(np); - goto unregister_platform_driver; - } + np = etnaviv_of_first_available_node(); + if (np) { + of_node_put(np); - ret = platform_device_add(pdev); - if (ret) { - platform_device_put(pdev); - of_node_put(np); + ret = etnaviv_create_platform_device("etnaviv", &etnaviv_drm); + if (ret) goto unregister_platform_driver; - } - - etnaviv_drm = pdev; - of_node_put(np); - break; } return 0; @@ -710,7 +739,7 @@ module_init(etnaviv_init); static void __exit etnaviv_exit(void) { - platform_device_unregister(etnaviv_drm); + etnaviv_destroy_platform_device(&etnaviv_drm); platform_driver_unregister(&etnaviv_platform_driver); platform_driver_unregister(&etnaviv_gpu_driver); } |