drm/exynos: Remove custom FB helper deferred setup

The FB helper core now supports deferred setup, so the driver's custom
implementation can be removed.

v2: Drop NULL check, drm_fb_helper_hotplug_event handles that already.

Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com> (v1)
Reviewed-by: Inki Dae <inki.dae@samsung.com>
Tested-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170706130023.28417-4-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 35a8dfc..cab9e12 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -395,8 +395,9 @@ static int exynos_drm_bind(struct device *dev)
        /* init kms poll for handling hpd */
        drm_kms_helper_poll_init(drm);
 
-       /* force connectors detection */
-       drm_helper_hpd_irq_event(drm);
+       ret = exynos_drm_fbdev_init(drm);
+       if (ret)
+               goto err_cleanup_poll;
 
        /* register the DRM device */
        ret = drm_dev_register(drm, 0);
@@ -407,6 +408,7 @@ static int exynos_drm_bind(struct device *dev)
 
 err_cleanup_fbdev:
        exynos_drm_fbdev_fini(drm);
+err_cleanup_poll:
        drm_kms_helper_poll_fini(drm);
        exynos_drm_device_subdrv_remove(drm);
 err_unbind_all:

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index 6415312..c3a0684 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -183,24 +183,6 @@ static const struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = {
        .fb_probe =     exynos_drm_fbdev_create,
 };
 
-static bool exynos_drm_fbdev_is_anything_connected(struct drm_device *dev)
-{
-       struct drm_connector *connector;
-       bool ret = false;
-
-       mutex_lock(&dev->mode_config.mutex);
-       list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-               if (connector->status != connector_status_connected)
-                       continue;
-
-               ret = true;
-               break;
-       }
-       mutex_unlock(&dev->mode_config.mutex);
-
-       return ret;
-}
-
 int exynos_drm_fbdev_init(struct drm_device *dev)
 {
        struct exynos_drm_fbdev *fbdev;
@@ -211,9 +193,6 @@ int exynos_drm_fbdev_init(struct drm_device *dev)
        if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector)
                return 0;
 
-       if (!exynos_drm_fbdev_is_anything_connected(dev))
-               return 0;
-
        fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
        if (!fbdev)
                return -ENOMEM;
@@ -304,8 +283,5 @@ void exynos_drm_output_poll_changed(struct drm_device *dev)
        struct exynos_drm_private *private = dev->dev_private;
        struct drm_fb_helper *fb_helper = private->fb_helper;
 
-       if (fb_helper)
-               drm_fb_helper_hotplug_event(fb_helper);
-       else
-               exynos_drm_fbdev_init(dev);
+       drm_fb_helper_hotplug_event(fb_helper);
 }