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authorNoralf Trønnes <noralf@tronnes.org>2018-07-03 18:03:48 +0200
committerNoralf Trønnes <noralf@tronnes.org>2018-07-10 14:52:37 +0200
commitd536540f304ce0ee35db9f67f7d880bc09f3743f (patch)
tree3d49489efe0689c4d65c9a934c756d1d5f3fab43 /include/drm/drm_fb_helper.h
parentc76f0f7cb546b661b5e0ac769850a5c854927f65 (diff)
downloadlinux-d536540f304ce0ee35db9f67f7d880bc09f3743f.tar.bz2
drm/fb-helper: Add generic fbdev emulation .fb_probe function
This is the first step in getting generic fbdev emulation. A drm_fb_helper_funcs.fb_probe function is added which uses the DRM client API to get a framebuffer backed by a dumb buffer. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-3-noralf@tronnes.org
Diffstat (limited to 'include/drm/drm_fb_helper.h')
-rw-r--r--include/drm/drm_fb_helper.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index b069433e7fc1..c134bbcfd2e9 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -32,6 +32,7 @@
struct drm_fb_helper;
+#include <drm/drm_client.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <linux/kgdb.h>
@@ -154,6 +155,20 @@ struct drm_fb_helper_connector {
* operations.
*/
struct drm_fb_helper {
+ /**
+ * @client:
+ *
+ * DRM client used by the generic fbdev emulation.
+ */
+ struct drm_client_dev client;
+
+ /**
+ * @buffer:
+ *
+ * Framebuffer used by the generic fbdev emulation.
+ */
+ struct drm_client_buffer *buffer;
+
struct drm_framebuffer *fb;
struct drm_device *dev;
int crtc_count;
@@ -234,6 +249,12 @@ struct drm_fb_helper {
int preferred_bpp;
};
+static inline struct drm_fb_helper *
+drm_fb_helper_from_client(struct drm_client_dev *client)
+{
+ return container_of(client, struct drm_fb_helper, client);
+}
+
/**
* define DRM_FB_HELPER_DEFAULT_OPS - helper define for drm drivers
*
@@ -330,6 +351,9 @@ void drm_fb_helper_fbdev_teardown(struct drm_device *dev);
void drm_fb_helper_lastclose(struct drm_device *dev);
void drm_fb_helper_output_poll_changed(struct drm_device *dev);
+
+int drm_fb_helper_generic_probe(struct drm_fb_helper *fb_helper,
+ struct drm_fb_helper_surface_size *sizes);
#else
static inline void drm_fb_helper_prepare(struct drm_device *dev,
struct drm_fb_helper *helper,
@@ -564,6 +588,13 @@ static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
{
}
+static inline int
+drm_fb_helper_generic_probe(struct drm_fb_helper *fb_helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ return 0;
+}
+
#endif
static inline int