From d536540f304ce0ee35db9f67f7d880bc09f3743f Mon Sep 17 00:00:00 2001 From: Noralf Trønnes Date: Tue, 3 Jul 2018 18:03:48 +0200 Subject: drm/fb-helper: Add generic fbdev emulation .fb_probe function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-3-noralf@tronnes.org --- include/drm/drm_fb_helper.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'include') 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 #include #include #include @@ -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 -- cgit v1.2.3