diff options
Diffstat (limited to 'drivers/gpu/drm/armada')
| -rw-r--r-- | drivers/gpu/drm/armada/Makefile | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/armada/armada_drm.h | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/armada/armada_drv.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/armada/armada_fb.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/armada/armada_fbdev.c | 119 |
5 files changed, 99 insertions, 48 deletions
diff --git a/drivers/gpu/drm/armada/Makefile b/drivers/gpu/drm/armada/Makefile index 9bc3c3213724..dc75a7db9ed3 100644 --- a/drivers/gpu/drm/armada/Makefile +++ b/drivers/gpu/drm/armada/Makefile @@ -1,7 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 -armada-y := armada_crtc.o armada_drv.o armada_fb.o armada_fbdev.o \ +armada-y := armada_crtc.o armada_drv.o armada_fb.o \ armada_gem.o armada_overlay.o armada_plane.o armada_trace.o armada-y += armada_510.o armada-$(CONFIG_DEBUG_FS) += armada_debugfs.o +armada-$(CONFIG_DRM_FBDEV_EMULATION) += armada_fbdev.o obj-$(CONFIG_DRM_ARMADA) := armada.o diff --git a/drivers/gpu/drm/armada/armada_drm.h b/drivers/gpu/drm/armada/armada_drm.h index 6a5a87932576..c303e8c7ff6c 100644 --- a/drivers/gpu/drm/armada/armada_drm.h +++ b/drivers/gpu/drm/armada/armada_drm.h @@ -16,7 +16,6 @@ struct armada_crtc; struct armada_gem_object; struct clk; struct drm_display_mode; -struct drm_fb_helper; static inline void armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr) @@ -55,7 +54,6 @@ extern const struct armada_variant armada510_ops; struct armada_private { struct drm_device drm; - struct drm_fb_helper *fbdev; struct armada_crtc *dcrtc[2]; struct drm_mm linear; /* protected by linear_lock */ struct mutex linear_lock; @@ -75,8 +73,12 @@ struct armada_private { #define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm) -int armada_fbdev_init(struct drm_device *); -void armada_fbdev_fini(struct drm_device *); +#if defined(CONFIG_DRM_FBDEV_EMULATION) +void armada_fbdev_setup(struct drm_device *dev); +#else +static inline void armada_fbdev_setup(struct drm_device *dev) +{ } +#endif int armada_overlay_plane_create(struct drm_device *, unsigned long); diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c index 142668cd6d7c..e120144d4b47 100644 --- a/drivers/gpu/drm/armada/armada_drv.c +++ b/drivers/gpu/drm/armada/armada_drv.c @@ -6,6 +6,7 @@ #include <linux/clk.h> #include <linux/component.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/of_graph.h> #include <linux/platform_device.h> @@ -16,7 +17,6 @@ #include <drm/drm_managed.h> #include <drm/drm_prime.h> #include <drm/drm_probe_helper.h> -#include <drm/drm_fb_helper.h> #include <drm/drm_of.h> #include <drm/drm_vblank.h> @@ -37,7 +37,6 @@ static const struct drm_ioctl_desc armada_ioctls[] = { DEFINE_DRM_GEM_FOPS(armada_drm_fops); static const struct drm_driver armada_drm_driver = { - .lastclose = drm_fb_helper_lastclose, .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_import = armada_gem_prime_import, @@ -55,7 +54,6 @@ static const struct drm_driver armada_drm_driver = { static const struct drm_mode_config_funcs armada_drm_mode_config_funcs = { .fb_create = armada_fb_create, - .output_poll_changed = drm_fb_helper_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, }; @@ -95,7 +93,7 @@ static int armada_drm_bind(struct device *dev) } /* Remove early framebuffers */ - ret = drm_aperture_remove_framebuffers(false, &armada_drm_driver); + ret = drm_aperture_remove_framebuffers(&armada_drm_driver); if (ret) { dev_err(dev, "[" DRM_NAME ":%s] can't kick out simple-fb: %d\n", __func__, ret); @@ -131,10 +129,6 @@ static int armada_drm_bind(struct device *dev) drm_mode_config_reset(&priv->drm); - ret = armada_fbdev_init(&priv->drm); - if (ret) - goto err_comp; - drm_kms_helper_poll_init(&priv->drm); ret = drm_dev_register(&priv->drm, 0); @@ -145,11 +139,12 @@ static int armada_drm_bind(struct device *dev) armada_drm_debugfs_init(priv->drm.primary); #endif + armada_fbdev_setup(&priv->drm); + return 0; err_poll: drm_kms_helper_poll_fini(&priv->drm); - armada_fbdev_fini(&priv->drm); err_comp: component_unbind_all(dev, &priv->drm); err_kms: @@ -164,7 +159,6 @@ static void armada_drm_unbind(struct device *dev) struct armada_private *priv = drm_to_armada_dev(drm); drm_kms_helper_poll_fini(&priv->drm); - armada_fbdev_fini(&priv->drm); drm_dev_unregister(&priv->drm); diff --git a/drivers/gpu/drm/armada/armada_fb.c b/drivers/gpu/drm/armada/armada_fb.c index b87c71703c85..cf2e88218dc0 100644 --- a/drivers/gpu/drm/armada/armada_fb.c +++ b/drivers/gpu/drm/armada/armada_fb.c @@ -4,7 +4,6 @@ */ #include <drm/drm_modeset_helper.h> -#include <drm/drm_fb_helper.h> #include <drm/drm_fourcc.h> #include <drm/drm_gem_framebuffer_helper.h> diff --git a/drivers/gpu/drm/armada/armada_fbdev.c b/drivers/gpu/drm/armada/armada_fbdev.c index 0e44f53e9fa4..0a5fd1aa86eb 100644 --- a/drivers/gpu/drm/armada/armada_fbdev.c +++ b/drivers/gpu/drm/armada/armada_fbdev.c @@ -8,6 +8,8 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_drv.h> #include <drm/drm_fb_helper.h> #include <drm/drm_fourcc.h> @@ -16,6 +18,19 @@ #include "armada_fb.h" #include "armada_gem.h" +static void armada_fbdev_fb_destroy(struct fb_info *info) +{ + struct drm_fb_helper *fbh = info->par; + + drm_fb_helper_fini(fbh); + + fbh->fb->funcs->destroy(fbh->fb); + + drm_client_release(&fbh->client); + drm_fb_helper_unprepare(fbh); + kfree(fbh); +} + static const struct fb_ops armada_fb_ops = { .owner = THIS_MODULE, DRM_FB_HELPER_DEFAULT_OPS, @@ -24,6 +39,7 @@ static const struct fb_ops armada_fb_ops = { .fb_fillrect = drm_fb_helper_cfb_fillrect, .fb_copyarea = drm_fb_helper_cfb_copyarea, .fb_imageblit = drm_fb_helper_cfb_imageblit, + .fb_destroy = armada_fbdev_fb_destroy, }; static int armada_fbdev_create(struct drm_fb_helper *fbh, @@ -117,56 +133,95 @@ static const struct drm_fb_helper_funcs armada_fb_helper_funcs = { .fb_probe = armada_fb_probe, }; -int armada_fbdev_init(struct drm_device *dev) +/* + * Fbdev client and struct drm_client_funcs + */ + +static void armada_fbdev_client_unregister(struct drm_client_dev *client) { - struct armada_private *priv = drm_to_armada_dev(dev); - struct drm_fb_helper *fbh; - int ret; + struct drm_fb_helper *fbh = drm_fb_helper_from_client(client); - fbh = devm_kzalloc(dev->dev, sizeof(*fbh), GFP_KERNEL); - if (!fbh) - return -ENOMEM; + if (fbh->info) { + drm_fb_helper_unregister_info(fbh); + } else { + drm_client_release(&fbh->client); + drm_fb_helper_unprepare(fbh); + kfree(fbh); + } +} - priv->fbdev = fbh; +static int armada_fbdev_client_restore(struct drm_client_dev *client) +{ + drm_fb_helper_lastclose(client->dev); - drm_fb_helper_prepare(dev, fbh, 32, &armada_fb_helper_funcs); + return 0; +} + +static int armada_fbdev_client_hotplug(struct drm_client_dev *client) +{ + struct drm_fb_helper *fbh = 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, fbh); - if (ret) { - DRM_ERROR("failed to initialize drm fb helper\n"); - goto err_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(fbh); - if (ret) { - DRM_ERROR("failed to set initial config\n"); - goto err_fb_setup; - } + if (ret) + goto err_drm_fb_helper_fini; return 0; - err_fb_setup: + +err_drm_fb_helper_fini: drm_fb_helper_fini(fbh); - err_fb_helper: - drm_fb_helper_unprepare(fbh); - priv->fbdev = NULL; +err_drm_err: + drm_err(dev, "armada: Failed to setup fbdev emulation (ret=%d)\n", ret); return ret; } -void armada_fbdev_fini(struct drm_device *dev) +static const struct drm_client_funcs armada_fbdev_client_funcs = { + .owner = THIS_MODULE, + .unregister = armada_fbdev_client_unregister, + .restore = armada_fbdev_client_restore, + .hotplug = armada_fbdev_client_hotplug, +}; + +void armada_fbdev_setup(struct drm_device *dev) { - struct armada_private *priv = drm_to_armada_dev(dev); - struct drm_fb_helper *fbh = priv->fbdev; + struct drm_fb_helper *fbh; + int ret; - if (fbh) { - drm_fb_helper_unregister_info(fbh); + drm_WARN(dev, !dev->registered, "Device has not been registered.\n"); + drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n"); + + fbh = kzalloc(sizeof(*fbh), GFP_KERNEL); + if (!fbh) + return; + drm_fb_helper_prepare(dev, fbh, 32, &armada_fb_helper_funcs); - drm_fb_helper_fini(fbh); + ret = drm_client_init(dev, &fbh->client, "fbdev", &armada_fbdev_client_funcs); + if (ret) { + drm_err(dev, "Failed to register client: %d\n", ret); + goto err_drm_client_init; + } - if (fbh->fb) - fbh->fb->funcs->destroy(fbh->fb); + ret = armada_fbdev_client_hotplug(&fbh->client); + if (ret) + drm_dbg_kms(dev, "client hotplug ret=%d\n", ret); - drm_fb_helper_unprepare(fbh); + drm_client_register(&fbh->client); - priv->fbdev = NULL; - } + return; + +err_drm_client_init: + drm_fb_helper_unprepare(fbh); + kfree(fbh); + return; } |