diff options
| -rw-r--r-- | drivers/gpu/drm/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 82 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_fb.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_irq_kms.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_mode.h | 2 | ||||
| -rw-r--r-- | include/drm/drm_fb_helper.h | 12 |
6 files changed, 101 insertions, 12 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 305c59003963..be5aa7d5206b 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -23,6 +23,7 @@ config DRM_KMS_HELPER depends on DRM select FB select FRAMEBUFFER_CONSOLE if !EMBEDDED + select SLOW_WORK help FB and CRTC helpers for KMS drivers. diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 6374e9b75d45..3312092f2c7e 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1308,9 +1308,14 @@ bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper) /* * we shouldn't end up with no modes here. */ - if (count == 0) - printk(KERN_INFO "No connectors reported connected with modes\n"); - + if (count == 0) { + if (fb_helper->poll_enabled) { + delayed_slow_work_enqueue(&fb_helper->output_poll_slow_work, + 5*HZ); + printk(KERN_INFO "No connectors reported connected with modes - started polling\n"); + } else + printk(KERN_INFO "No connectors reported connected with modes\n"); + } drm_setup_crtcs(fb_helper); return 0; @@ -1318,15 +1323,80 @@ bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper) EXPORT_SYMBOL(drm_fb_helper_initial_config); bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper, - u32 max_width, u32 max_height) + u32 max_width, u32 max_height, bool polled) { + int count = 0; + int ret; DRM_DEBUG_KMS("\n"); - drm_fb_helper_probe_connector_modes(fb_helper, max_width, + count = drm_fb_helper_probe_connector_modes(fb_helper, max_width, max_height); - + if (fb_helper->poll_enabled && !polled) { + if (count) { + delayed_slow_work_cancel(&fb_helper->output_poll_slow_work); + } else { + ret = delayed_slow_work_enqueue(&fb_helper->output_poll_slow_work, 5*HZ); + } + } drm_setup_crtcs(fb_helper); return true; } EXPORT_SYMBOL(drm_helper_fb_hotplug_event); + +static void output_poll_execute(struct slow_work *work) +{ + struct delayed_slow_work *delayed_work = container_of(work, struct delayed_slow_work, work); + struct drm_fb_helper *fb_helper = container_of(delayed_work, struct drm_fb_helper, output_poll_slow_work); + struct drm_device *dev = fb_helper->dev; + struct drm_connector *connector; + enum drm_connector_status old_status, status; + bool repoll = true, changed = false; + int ret; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + old_status = connector->status; + status = connector->funcs->detect(connector); + if (old_status != status) { + changed = true; + /* something changed */ + } + if (status == connector_status_connected) { + DRM_DEBUG("%s is connected - stop polling\n", drm_get_connector_name(connector)); + repoll = false; + } + } + + if (repoll) { + ret = delayed_slow_work_enqueue(delayed_work, 5*HZ); + if (ret) + DRM_ERROR("delayed enqueue failed %d\n", ret); + } + + if (changed) { + if (fb_helper->fb_poll_changed) + fb_helper->fb_poll_changed(fb_helper); + } +} + +struct slow_work_ops output_poll_ops = { + .execute = output_poll_execute, +}; + +void drm_fb_helper_poll_init(struct drm_fb_helper *fb_helper) +{ + int ret; + + ret = slow_work_register_user(THIS_MODULE); + + delayed_slow_work_init(&fb_helper->output_poll_slow_work, &output_poll_ops); + fb_helper->poll_enabled = true; +} +EXPORT_SYMBOL(drm_fb_helper_poll_init); + +void drm_fb_helper_poll_fini(struct drm_fb_helper *fb_helper) +{ + delayed_slow_work_cancel(&fb_helper->output_poll_slow_work); + slow_work_unregister_user(THIS_MODULE); +} +EXPORT_SYMBOL(drm_fb_helper_poll_fini); diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index 7275b2e09444..7913e50fe501 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -321,18 +321,23 @@ static int radeonfb_probe(struct radeon_fbdev *rfbdev) return drm_fb_helper_single_fb_probe(&rfbdev->helper, bpp_sel); } -void radeonfb_hotplug(struct drm_device *dev) +void radeonfb_hotplug(struct drm_device *dev, bool polled) { struct radeon_device *rdev = dev->dev_private; int max_width, max_height; max_width = rdev->mode_info.rfbdev->rfb.base.width; max_height = rdev->mode_info.rfbdev->rfb.base.height; - drm_helper_fb_hotplug_event(&rdev->mode_info.rfbdev->helper, max_width, max_height); + drm_helper_fb_hotplug_event(&rdev->mode_info.rfbdev->helper, max_width, max_height, polled); radeonfb_probe(rdev->mode_info.rfbdev); } +static void radeon_fb_poll_changed(struct drm_fb_helper *fb_helper) +{ + radeonfb_hotplug(fb_helper->dev, true); +} + static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev) { struct fb_info *info; @@ -381,8 +386,12 @@ int radeon_fbdev_init(struct radeon_device *rdev) drm_fb_helper_single_add_all_connectors(&rfbdev->helper); + rfbdev->helper.fb_poll_changed = radeon_fb_poll_changed; + drm_fb_helper_poll_init(&rfbdev->helper); + drm_fb_helper_initial_config(&rfbdev->helper); radeonfb_probe(rfbdev); + return 0; } @@ -392,6 +401,7 @@ void radeon_fbdev_fini(struct radeon_device *rdev) if (!rdev->mode_info.rfbdev) return; + drm_fb_helper_poll_fini(&rdev->mode_info.rfbdev->helper); radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev); kfree(rdev->mode_info.rfbdev); rdev->mode_info.rfbdev = NULL; diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index e7afd80a3d69..a95907aa7eae 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -55,7 +55,7 @@ static void radeon_hotplug_work_func(struct work_struct *work) radeon_connector_hotplug(connector); } /* Just fire off a uevent and let userspace tell us what to do */ - radeonfb_hotplug(dev); + radeonfb_hotplug(dev, false); drm_sysfs_hotplug_event(dev); } diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index 165f6025a3bc..4a086c09e117 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -585,5 +585,5 @@ void radeon_fbdev_fini(struct radeon_device *rdev); void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state); int radeon_fbdev_total_size(struct radeon_device *rdev); bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj); -void radeonfb_hotplug(struct drm_device *dev); +void radeonfb_hotplug(struct drm_device *dev, bool polled); #endif diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index 50094f94d4ca..a073d73c195e 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -30,6 +30,8 @@ #ifndef DRM_FB_HELPER_H #define DRM_FB_HELPER_H +#include <linux/slow-work.h> + struct drm_fb_helper_crtc { uint32_t crtc_id; struct drm_mode_set mode_set; @@ -86,8 +88,12 @@ struct drm_fb_helper { u32 pseudo_palette[17]; struct list_head kernel_fb_list; + struct delayed_slow_work output_poll_slow_work; + bool poll_enabled; int (*fb_probe)(struct drm_fb_helper *helper, struct drm_fb_helper_surface_size *sizes); + + void (*fb_poll_changed)(struct drm_fb_helper *helper); }; int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper, @@ -118,9 +124,11 @@ void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info); -bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper, u32 max_width, - u32 max_height); +bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper, + u32 max_width, u32 max_height, bool polled); bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper); int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper); +void drm_fb_helper_poll_init(struct drm_fb_helper *fb_helper); +void drm_fb_helper_poll_fini(struct drm_fb_helper *fb_helper); #endif |