[PATCH 03/15] drm/fb-helper: Add .last_close and .output_poll_changed helpers

Noralf Trønnes
2017-10-19T23:02:01Z

This adds helpers for the drm_driver->last_close and the
drm_mode_config_funcs->output_poll_changed callbacks.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/drm_fb_helper.c | 28 ++++++++++++++++++++++++++++
include/drm/drm_fb_helper.h | 11 +++++++++++
2 files changed, 39 insertions(+)

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index c07b7af8de4c..5f32c11eb0d2 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -2633,6 +2633,34 @@ int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
}
EXPORT_SYMBOL(drm_fb_helper_hotplug_event);

+/**
+ * drm_fb_helper_lastclose - DRM driver lastclose helper for fbdev emulation
+ * @dev: DRM device
+ *
+ * This function can be used as the &drm_driver->lastclose callback for drivers
+ * that only need to call drm_fb_helper_restore_fbdev_mode_unlocked().
+ */
+void drm_fb_helper_lastclose(struct drm_device *dev)
+{
+ drm_fb_helper_restore_fbdev_mode_unlocked(dev->drm_fb_helper_private);
+}
+EXPORT_SYMBOL(drm_fb_helper_lastclose);
+
+/**
+ * drm_fb_helper_output_poll_changed - DRM mode config \.output_poll_changed
+ * helper for fbdev emulation
+ * @dev: DRM device
+ *
+ * This function can be used as the
+ * &drm_mode_config_funcs.output_poll_changed callback for drivers that only
+ * need to call drm_fb_helper_hotplug_event().
+ */
+void drm_fb_helper_output_poll_changed(struct drm_device *dev)
+{
+ drm_fb_helper_hotplug_event(dev->drm_fb_helper_private);
+}
+EXPORT_SYMBOL(drm_fb_helper_output_poll_changed);
+
/* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
* but the module doesn't depend on any fb console symbols. At least
* attempt to load fbcon to avoid leaving the system without a usable console.
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 33fe95927742..877e5b395c02 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -310,6 +310,9 @@ drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn);
int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector);
int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
struct drm_connector *connector);
+
+void drm_fb_helper_lastclose(struct drm_device *dev);
+void drm_fb_helper_output_poll_changed(struct drm_device *dev);
#else
static inline void drm_fb_helper_prepare(struct drm_device *dev,
struct drm_fb_helper *helper,
@@ -507,6 +510,14 @@ drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
return 0;
}

+static inline void drm_fb_helper_lastclose(struct drm_device *dev)
+{
+}
+
+static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
+{
+}
+
#endif

static inline int