diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_fbdev.c')
-rw-r--r-- | drivers/gpu/drm/msm/msm_fbdev.c | 144 |
1 files changed, 26 insertions, 118 deletions
diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c index 030bedac632d..c62249b1ab3d 100644 --- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -65,8 +65,31 @@ static const struct fb_ops msm_fb_ops = { .fb_destroy = msm_fbdev_fb_destroy, }; -static int msm_fbdev_create(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) +static int msm_fbdev_fb_dirty(struct drm_fb_helper *helper, + struct drm_clip_rect *clip) +{ + struct drm_device *dev = helper->dev; + int ret; + + /* Call damage handlers only if necessary */ + if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2)) + return 0; + + if (helper->fb->funcs->dirty) { + ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1); + if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret)) + return ret; + } + + return 0; +} + +static const struct drm_fb_helper_funcs msm_fbdev_helper_funcs = { + .fb_dirty = msm_fbdev_fb_dirty, +}; + +int msm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes) { struct drm_device *dev = helper->dev; struct msm_drm_private *priv = dev->dev_private; @@ -114,6 +137,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper, DBG("fbi=%p, dev=%p", fbi, dev); + helper->funcs = &msm_fbdev_helper_funcs; helper->fb = fb; fbi->fbops = &msm_fb_ops; @@ -138,119 +162,3 @@ fail: drm_framebuffer_remove(fb); return ret; } - -static int msm_fbdev_fb_dirty(struct drm_fb_helper *helper, - struct drm_clip_rect *clip) -{ - struct drm_device *dev = helper->dev; - int ret; - - /* Call damage handlers only if necessary */ - if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2)) - return 0; - - if (helper->fb->funcs->dirty) { - ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1); - if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret)) - return ret; - } - - return 0; -} - -static const struct drm_fb_helper_funcs msm_fb_helper_funcs = { - .fb_probe = msm_fbdev_create, - .fb_dirty = msm_fbdev_fb_dirty, -}; - -/* - * struct drm_client - */ - -static void msm_fbdev_client_unregister(struct drm_client_dev *client) -{ - struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - - if (fb_helper->info) { - drm_fb_helper_unregister_info(fb_helper); - } else { - drm_client_release(&fb_helper->client); - drm_fb_helper_unprepare(fb_helper); - kfree(fb_helper); - } -} - -static int msm_fbdev_client_restore(struct drm_client_dev *client) -{ - drm_fb_helper_lastclose(client->dev); - - return 0; -} - -static int msm_fbdev_client_hotplug(struct drm_client_dev *client) -{ - struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client); - struct drm_device *dev = client->dev; - int ret; - - if (dev->fb_helper) - return drm_fb_helper_hotplug_event(dev->fb_helper); - - ret = drm_fb_helper_init(dev, fb_helper); - if (ret) - goto err_drm_err; - - if (!drm_drv_uses_atomic_modeset(dev)) - drm_helper_disable_unused_functions(dev); - - ret = drm_fb_helper_initial_config(fb_helper); - if (ret) - goto err_drm_fb_helper_fini; - - return 0; - -err_drm_fb_helper_fini: - drm_fb_helper_fini(fb_helper); -err_drm_err: - drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret); - return ret; -} - -static const struct drm_client_funcs msm_fbdev_client_funcs = { - .owner = THIS_MODULE, - .unregister = msm_fbdev_client_unregister, - .restore = msm_fbdev_client_restore, - .hotplug = msm_fbdev_client_hotplug, -}; - -/* initialize fbdev helper */ -void msm_fbdev_setup(struct drm_device *dev) -{ - struct drm_fb_helper *helper; - int ret; - - if (!fbdev) - return; - - drm_WARN(dev, !dev->registered, "Device has not been registered.\n"); - drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n"); - - helper = kzalloc(sizeof(*helper), GFP_KERNEL); - if (!helper) - return; - drm_fb_helper_prepare(dev, helper, 32, &msm_fb_helper_funcs); - - ret = drm_client_init(dev, &helper->client, "fbdev", &msm_fbdev_client_funcs); - if (ret) { - drm_err(dev, "Failed to register client: %d\n", ret); - goto err_drm_fb_helper_unprepare; - } - - drm_client_register(&helper->client); - - return; - -err_drm_fb_helper_unprepare: - drm_fb_helper_unprepare(helper); - kfree(helper); -} |