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authorMaxime Ripard <maxime.ripard@free-electrons.com>2017-02-28 18:36:51 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-03-02 10:12:15 +0300
commit0f3bbe074dd179dfbdaabcc601086bc4f6ab885b (patch)
tree16e8bfb3bac288170abacfebf2827e1d45c3d0de /include/drm/drm_fb_helper.h
parent35f5022fbe9b05ea7ab479f299dc1b63b0ceb8c6 (diff)
downloadlinux-0f3bbe074dd179dfbdaabcc601086bc4f6ab885b.tar.xz
drm/fb-helper: implement ioctl FBIO_WAITFORVSYNC
Implement legacy framebuffer ioctl FBIO_WAITFORVSYNC in the generic framebuffer emulation driver. Legacy framebuffer users like non kms/drm based OpenGL(ES)/EGL implementations may require the ioctl to synchronize drawing or buffer flip for double buffering. It is tested on the i.MX6. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Tested-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm/drm_fb_helper.h')
-rw-r--r--include/drm/drm_fb_helper.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 339226d074f5..119e5e4609c7 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -230,7 +230,8 @@ struct drm_fb_helper {
.fb_blank = drm_fb_helper_blank, \
.fb_pan_display = drm_fb_helper_pan_display, \
.fb_debug_enter = drm_fb_helper_debug_enter, \
- .fb_debug_leave = drm_fb_helper_debug_leave
+ .fb_debug_leave = drm_fb_helper_debug_leave, \
+ .fb_ioctl = drm_fb_helper_ioctl
#ifdef CONFIG_DRM_FBDEV_EMULATION
void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,
@@ -284,6 +285,9 @@ void drm_fb_helper_set_suspend_unlocked(struct drm_fb_helper *fb_helper,
int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
+int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg);
+
int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
@@ -371,6 +375,12 @@ static inline int drm_fb_helper_setcmap(struct fb_cmap *cmap,
return 0;
}
+static inline int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ return 0;
+}
+
static inline void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper)
{
}