Some drm drivers call unlink_framebuffer. Create a drm_fb_helper function
that wraps around these calls.
This is part of an effort to prevent drm drivers from calling fbdev
functions directly, in order to make fbdev emulation a top level drm
option.
Signed-off-by: Archit Taneja <architt@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_fb_helper.c | 13 +++++++++++++
include/drm/drm_fb_helper.h | 2 ++
2 files changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index a5ae64a..2f8dd8d 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -764,6 +764,19 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
}
EXPORT_SYMBOL(drm_fb_helper_fini);
+/**
+ * drm_fb_helper_unlink_fbi - wrapper around unlink_framebuffer
+ * @fb_helper: driver-allocated fbdev helper
+ *
+ * A wrapper around unlink_framebuffer implemented by fbdev core
+ */
+void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper)
+{
+ if (fb_helper && fb_helper->fbdev)
+ unlink_framebuffer(fb_helper->fbdev);
+}
+EXPORT_SYMBOL(drm_fb_helper_unlink_fbi);
+
static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, u16 regno, struct fb_info *info)
{
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 2ee4ec5..4c90837 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -145,6 +145,8 @@ void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helpe
void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
uint32_t depth);
+void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper);
+
int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/dri-devel
