From 89c258b5226d86a5d57b6df17eec00ab0f3d5b80 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 30 Mar 2023 09:36:31 +0200 Subject: [PATCH 1/5] drm/exynos: Remove exynos_gem from struct exynos_drm_fbdev Fbdev's framebuffer stores a pointer to the GEM object. Remove struct exynos_drm_fbdev.exynos_gem, which contains the same value. No functional changes. Signed-off-by: Thomas Zimmermann Tested-by: Marek Szyprowski Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 4929ffe5a09a..f11895d32982 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -32,17 +33,14 @@ struct exynos_drm_fbdev { struct drm_fb_helper drm_fb_helper; - struct exynos_drm_gem *exynos_gem; }; -static int exynos_drm_fb_mmap(struct fb_info *info, - struct vm_area_struct *vma) +static int exynos_drm_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) { struct drm_fb_helper *helper = info->par; - struct exynos_drm_fbdev *exynos_fbd = to_exynos_fbdev(helper); - struct exynos_drm_gem *exynos_gem = exynos_fbd->exynos_gem; + struct drm_gem_object *obj = drm_gem_fb_get_obj(helper->fb, 0); - return drm_gem_prime_mmap(&exynos_gem->base, vma); + return drm_gem_prime_mmap(obj, vma); } static const struct fb_ops exynos_drm_fb_ops = { @@ -89,7 +87,6 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, static int exynos_drm_fbdev_create(struct drm_fb_helper *helper, struct drm_fb_helper_surface_size *sizes) { - struct exynos_drm_fbdev *exynos_fbdev = to_exynos_fbdev(helper); struct exynos_drm_gem *exynos_gem; struct drm_device *dev = helper->dev; struct drm_mode_fb_cmd2 mode_cmd = { 0 }; @@ -113,8 +110,6 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper, if (IS_ERR(exynos_gem)) return PTR_ERR(exynos_gem); - exynos_fbdev->exynos_gem = exynos_gem; - helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd, &exynos_gem, 1); if (IS_ERR(helper->fb)) { From 50e97607f8853ad7efe1a8d451ccdd8f50e7fbe1 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 30 Mar 2023 09:36:32 +0200 Subject: [PATCH 2/5] drm/exynos: Remove struct exynos_drm_fbdev Remove struct exynos_drm_fbdev, which is an empty wrapper around struct drm_fb_helper. Use the latter directly. No functional changes. Signed-off-by: Thomas Zimmermann Tested-by: Marek Szyprowski Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index f11895d32982..e7059850baa2 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -28,13 +28,6 @@ #define MAX_CONNECTOR 4 #define PREFERRED_BPP 32 -#define to_exynos_fbdev(x) container_of(x, struct exynos_drm_fbdev,\ - drm_fb_helper) - -struct exynos_drm_fbdev { - struct drm_fb_helper drm_fb_helper; -}; - static int exynos_drm_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) { struct drm_fb_helper *helper = info->par; @@ -144,7 +137,6 @@ static const struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = { int exynos_drm_fbdev_init(struct drm_device *dev) { - struct exynos_drm_fbdev *fbdev; struct exynos_drm_private *private = dev->dev_private; struct drm_fb_helper *helper; int ret; @@ -152,11 +144,11 @@ int exynos_drm_fbdev_init(struct drm_device *dev) if (!dev->mode_config.num_crtc) return 0; - fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL); - if (!fbdev) + helper = kzalloc(sizeof(*helper), GFP_KERNEL); + if (!helper) return -ENOMEM; - private->fb_helper = helper = &fbdev->drm_fb_helper; + private->fb_helper = helper; drm_fb_helper_prepare(dev, helper, PREFERRED_BPP, &exynos_drm_fb_helper_funcs); @@ -181,7 +173,7 @@ err_setup: err_init: drm_fb_helper_unprepare(helper); private->fb_helper = NULL; - kfree(fbdev); + kfree(helper); return ret; } @@ -206,16 +198,13 @@ static void exynos_drm_fbdev_destroy(struct drm_device *dev, void exynos_drm_fbdev_fini(struct drm_device *dev) { struct exynos_drm_private *private = dev->dev_private; - struct exynos_drm_fbdev *fbdev; if (!private || !private->fb_helper) return; - fbdev = to_exynos_fbdev(private->fb_helper); - exynos_drm_fbdev_destroy(dev, private->fb_helper); drm_fb_helper_unprepare(private->fb_helper); - kfree(fbdev); + kfree(private->fb_helper); private->fb_helper = NULL; } From 3bf3b53446d14003193a8804d0d1f3e1761b2be2 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 30 Mar 2023 09:36:33 +0200 Subject: [PATCH 3/5] drm/exynos: Remove fb_helper from struct exynos_drm_private The DRM device stores a pointer to the fbdev helper. Remove struct exynos_drm_private.fb_helper, which contains the same value. No functional changes. Signed-off-by: Thomas Zimmermann Tested-by: Marek Szyprowski Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_drv.h | 2 -- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 15 +++++---------- 2 files changed, 5 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 6ae9056e7a18..81d501efd013 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -197,8 +197,6 @@ struct drm_exynos_file_private { * @wait: wait an atomic commit to finish */ struct exynos_drm_private { - struct drm_fb_helper *fb_helper; - struct device *g2d_dev; struct device *dma_dev; void *mapping; diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index e7059850baa2..81f909cb5c9b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -137,7 +137,6 @@ static const struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = { int exynos_drm_fbdev_init(struct drm_device *dev) { - struct exynos_drm_private *private = dev->dev_private; struct drm_fb_helper *helper; int ret; @@ -148,8 +147,6 @@ int exynos_drm_fbdev_init(struct drm_device *dev) if (!helper) return -ENOMEM; - private->fb_helper = helper; - drm_fb_helper_prepare(dev, helper, PREFERRED_BPP, &exynos_drm_fb_helper_funcs); ret = drm_fb_helper_init(dev, helper); @@ -172,7 +169,6 @@ err_setup: drm_fb_helper_fini(helper); err_init: drm_fb_helper_unprepare(helper); - private->fb_helper = NULL; kfree(helper); return ret; @@ -197,14 +193,13 @@ static void exynos_drm_fbdev_destroy(struct drm_device *dev, void exynos_drm_fbdev_fini(struct drm_device *dev) { - struct exynos_drm_private *private = dev->dev_private; + struct drm_fb_helper *fb_helper = dev->fb_helper; - if (!private || !private->fb_helper) + if (!fb_helper) return; - exynos_drm_fbdev_destroy(dev, private->fb_helper); - drm_fb_helper_unprepare(private->fb_helper); - kfree(private->fb_helper); - private->fb_helper = NULL; + exynos_drm_fbdev_destroy(dev, fb_helper); + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); } From 99286486d67450f2189f7373c0d76c49ce6825f7 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 30 Mar 2023 09:36:34 +0200 Subject: [PATCH 4/5] drm/exynos: Initialize fbdev DRM client Initialize the fbdev client in the fbdev code with empty helper functions. Also clean up the client. The helpers will later implement various functionality of the DRM client. No functional changes. Signed-off-by: Thomas Zimmermann Tested-by: Marek Szyprowski Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 35 +++++++++++++++++++++-- 1 file changed, 33 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 81f909cb5c9b..d1de49530c48 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -135,6 +135,30 @@ static const struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = { .fb_probe = exynos_drm_fbdev_create, }; +/* + * struct drm_client + */ + +static void exynos_drm_fbdev_client_unregister(struct drm_client_dev *client) +{ } + +static int exynos_drm_fbdev_client_restore(struct drm_client_dev *client) +{ + return 0; +} + +static int exynos_drm_fbdev_client_hotplug(struct drm_client_dev *client) +{ + return 0; +} + +static const struct drm_client_funcs exynos_drm_fbdev_client_funcs = { + .owner = THIS_MODULE, + .unregister = exynos_drm_fbdev_client_unregister, + .restore = exynos_drm_fbdev_client_restore, + .hotplug = exynos_drm_fbdev_client_hotplug, +}; + int exynos_drm_fbdev_init(struct drm_device *dev) { struct drm_fb_helper *helper; @@ -149,11 +173,15 @@ int exynos_drm_fbdev_init(struct drm_device *dev) drm_fb_helper_prepare(dev, helper, PREFERRED_BPP, &exynos_drm_fb_helper_funcs); + ret = drm_client_init(dev, &helper->client, "exynos-fbdev", &exynos_drm_fbdev_client_funcs); + if (ret) + goto err_drm_fb_helper_unprepare; + ret = drm_fb_helper_init(dev, helper); if (ret < 0) { DRM_DEV_ERROR(dev->dev, "failed to initialize drm fb helper.\n"); - goto err_init; + goto err_drm_client_release; } ret = drm_fb_helper_initial_config(helper); @@ -167,7 +195,9 @@ int exynos_drm_fbdev_init(struct drm_device *dev) err_setup: drm_fb_helper_fini(helper); -err_init: +err_drm_client_release: + drm_client_release(&helper->client); +err_drm_fb_helper_unprepare: drm_fb_helper_unprepare(helper); kfree(helper); @@ -199,6 +229,7 @@ void exynos_drm_fbdev_fini(struct drm_device *dev) return; exynos_drm_fbdev_destroy(dev, fb_helper); + drm_client_release(&fb_helper->client); drm_fb_helper_unprepare(fb_helper); kfree(fb_helper); } From 49953b70e7d38dd714f4cf22224e8a7ce14f3c48 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 30 Mar 2023 09:36:35 +0200 Subject: [PATCH 5/5] drm/exynos: Implement fbdev emulation as in-kernel client Move code from ad-hoc fbdev callbacks into DRM client functions and remove the old callbacks. The functions instruct the client to poll for changed output or restore the display. The DRM core calls both, the old callbacks and the new client helpers, from the same places. The new functions perform the same operation as before, so there's no change in functionality. Replace all code that initializes or releases fbdev emulation throughout the driver. Instead initialize the fbdev client by a single call to exynos_fbdev_setup() after exynos has registered its DRM device. As in most drivers, exynos' fbdev emulation now acts like a regular DRM client. The fbdev client setup consists of the initial preparation and the hot-plugging of the display. The latter creates the fbdev device and sets up the fbdev framebuffer. The setup performs display hot-plugging once. If no display can be detected, DRM probe helpers re-run the detection on each hotplug event. A call to drm_dev_unregister() releases the client automatically. No further action is required within exynos. If the fbdev framebuffer has been fully set up, struct fb_ops.fb_destroy implements the release. For partially initialized emulation, the fbdev client reverts the initial setup. Signed-off-by: Thomas Zimmermann Tested-by: Marek Szyprowski Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_drv.c | 13 +- drivers/gpu/drm/exynos/exynos_drm_fb.c | 2 - drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 156 +++++++++++----------- drivers/gpu/drm/exynos/exynos_drm_fbdev.h | 20 +-- 4 files changed, 80 insertions(+), 111 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 16c539657f73..6b73fb7a83c3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include @@ -108,7 +107,6 @@ static const struct drm_driver exynos_drm_driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC | DRIVER_RENDER, .open = exynos_drm_open, - .lastclose = drm_fb_helper_lastclose, .postclose = exynos_drm_postclose, .dumb_create = exynos_drm_gem_dumb_create, .prime_handle_to_fd = drm_gem_prime_handle_to_fd, @@ -288,19 +286,15 @@ static int exynos_drm_bind(struct device *dev) /* init kms poll for handling hpd */ drm_kms_helper_poll_init(drm); - ret = exynos_drm_fbdev_init(drm); - if (ret) - goto err_cleanup_poll; - /* register the DRM device */ ret = drm_dev_register(drm, 0); if (ret < 0) - goto err_cleanup_fbdev; + goto err_cleanup_poll; + + exynos_drm_fbdev_setup(drm); return 0; -err_cleanup_fbdev: - exynos_drm_fbdev_fini(drm); err_cleanup_poll: drm_kms_helper_poll_fini(drm); err_unbind_all: @@ -321,7 +315,6 @@ static void exynos_drm_unbind(struct device *dev) drm_dev_unregister(drm); - exynos_drm_fbdev_fini(drm); drm_kms_helper_poll_fini(drm); component_unbind_all(drm->dev, drm); diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c index 97f2dee2db29..fc1c5608db96 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fb.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include #include @@ -157,7 +156,6 @@ static struct drm_mode_config_helper_funcs exynos_drm_mode_config_helpers = { static const struct drm_mode_config_funcs exynos_drm_mode_config_funcs = { .fb_create = exynos_user_fb_create, - .output_poll_changed = drm_fb_helper_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, }; diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index d1de49530c48..ea4b3d248aac 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -8,17 +8,12 @@ * Seung-Woo Kim */ -#include -#include -#include - -#include +#include +#include #include -#include #include #include #include -#include #include #include "exynos_drm_drv.h" @@ -36,6 +31,20 @@ static int exynos_drm_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) return drm_gem_prime_mmap(obj, vma); } +static void exynos_drm_fb_destroy(struct fb_info *info) +{ + struct drm_fb_helper *fb_helper = info->par; + struct drm_framebuffer *fb = fb_helper->fb; + + drm_fb_helper_fini(fb_helper); + + drm_framebuffer_remove(fb); + + drm_client_release(&fb_helper->client); + drm_fb_helper_unprepare(fb_helper); + kfree(fb_helper); +} + static const struct fb_ops exynos_drm_fb_ops = { .owner = THIS_MODULE, DRM_FB_HELPER_DEFAULT_OPS, @@ -45,6 +54,7 @@ static const struct fb_ops exynos_drm_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 = exynos_drm_fb_destroy, }; static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, @@ -115,19 +125,13 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper, if (ret < 0) goto err_destroy_framebuffer; - return ret; + return 0; err_destroy_framebuffer: drm_framebuffer_cleanup(helper->fb); + helper->fb = NULL; err_destroy_gem: exynos_drm_gem_destroy(exynos_gem); - - /* - * if failed, all resources allocated above would be released by - * drm_mode_config_cleanup() when drm_load() had been called prior - * to any specific driver such as fimd or hdmi driver. - */ - return ret; } @@ -140,16 +144,52 @@ static const struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = { */ static void exynos_drm_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 exynos_drm_fbdev_client_restore(struct drm_client_dev *client) { + drm_fb_helper_lastclose(client->dev); + return 0; } static int exynos_drm_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 exynos_drm_fbdev_client_funcs = { @@ -159,78 +199,32 @@ static const struct drm_client_funcs exynos_drm_fbdev_client_funcs = { .hotplug = exynos_drm_fbdev_client_hotplug, }; -int exynos_drm_fbdev_init(struct drm_device *dev) +void exynos_drm_fbdev_setup(struct drm_device *dev) { - struct drm_fb_helper *helper; + struct drm_fb_helper *fb_helper; int ret; - if (!dev->mode_config.num_crtc) - return 0; - - helper = kzalloc(sizeof(*helper), GFP_KERNEL); - if (!helper) - return -ENOMEM; - - drm_fb_helper_prepare(dev, helper, PREFERRED_BPP, &exynos_drm_fb_helper_funcs); - - ret = drm_client_init(dev, &helper->client, "exynos-fbdev", &exynos_drm_fbdev_client_funcs); - if (ret) - goto err_drm_fb_helper_unprepare; - - ret = drm_fb_helper_init(dev, helper); - if (ret < 0) { - DRM_DEV_ERROR(dev->dev, - "failed to initialize drm fb helper.\n"); - goto err_drm_client_release; - } - - ret = drm_fb_helper_initial_config(helper); - if (ret < 0) { - DRM_DEV_ERROR(dev->dev, - "failed to set up hw configuration.\n"); - goto err_setup; - } - - return 0; - -err_setup: - drm_fb_helper_fini(helper); -err_drm_client_release: - drm_client_release(&helper->client); -err_drm_fb_helper_unprepare: - drm_fb_helper_unprepare(helper); - kfree(helper); - - return ret; -} - -static void exynos_drm_fbdev_destroy(struct drm_device *dev, - struct drm_fb_helper *fb_helper) -{ - struct drm_framebuffer *fb; - - /* release drm framebuffer and real buffer */ - if (fb_helper->fb && fb_helper->fb->funcs) { - fb = fb_helper->fb; - if (fb) - drm_framebuffer_remove(fb); - } - - drm_fb_helper_unregister_info(fb_helper); - - drm_fb_helper_fini(fb_helper); -} - -void exynos_drm_fbdev_fini(struct drm_device *dev) -{ - struct drm_fb_helper *fb_helper = dev->fb_helper; + drm_WARN(dev, !dev->registered, "Device has not been registered.\n"); + drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n"); + fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL); if (!fb_helper) return; + drm_fb_helper_prepare(dev, fb_helper, PREFERRED_BPP, &exynos_drm_fb_helper_funcs); - exynos_drm_fbdev_destroy(dev, fb_helper); - drm_client_release(&fb_helper->client); + ret = drm_client_init(dev, &fb_helper->client, "fbdev", &exynos_drm_fbdev_client_funcs); + if (ret) + goto err_drm_client_init; + + ret = exynos_drm_fbdev_client_hotplug(&fb_helper->client); + if (ret) + drm_dbg_kms(dev, "client hotplug ret=%d\n", ret); + + drm_client_register(&fb_helper->client); + + return; + +err_drm_client_init: drm_fb_helper_unprepare(fb_helper); kfree(fb_helper); } - diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h index 3b1e98e84580..1e1dea627cd9 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h @@ -12,27 +12,11 @@ #define _EXYNOS_DRM_FBDEV_H_ #ifdef CONFIG_DRM_FBDEV_EMULATION - -int exynos_drm_fbdev_init(struct drm_device *dev); -void exynos_drm_fbdev_fini(struct drm_device *dev); - +void exynos_drm_fbdev_setup(struct drm_device *dev); #else - -static inline int exynos_drm_fbdev_init(struct drm_device *dev) -{ - return 0; -} - -static inline void exynos_drm_fbdev_fini(struct drm_device *dev) +static inline void exynos_drm_fbdev_setup(struct drm_device *dev) { } - -static inline void exynos_drm_fbdev_restore_mode(struct drm_device *dev) -{ -} - -#define exynos_drm_output_poll_changed (NULL) - #endif #endif