drm: Export the command-line mode parser
In the absence of configuration data for providing the fixed mode for
a panel, I would like to be able to pass such modes along a separate
module paramenter. To do so, I then need to parse a modeline from a
string, which drm is already capable of. Export that capability to the
drivers.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 4ab866e..738b3a5 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -994,6 +994,22 @@
struct drm_mode_group mode_group;
};
+/* mode specified on the command line */
+struct drm_cmdline_mode {
+ bool specified;
+ bool refresh_specified;
+ bool bpp_specified;
+ int xres, yres;
+ int bpp;
+ int refresh;
+ bool rb;
+ bool interlace;
+ bool cvt;
+ bool margins;
+ enum drm_connector_force force;
+};
+
+
struct drm_pending_vblank_event {
struct drm_pending_event base;
int pipe;
@@ -1389,6 +1405,15 @@
struct drm_crtc *refcrtc);
extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
+extern bool
+drm_mode_parse_command_line_for_connector(const char *mode_option,
+ struct drm_connector *connector,
+ struct drm_cmdline_mode *mode);
+
+extern struct drm_display_mode *
+drm_mode_create_from_cmdline_mode(struct drm_device *dev,
+ struct drm_cmdline_mode *cmd);
+
/* Modesetting support */
extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);
extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index c99c3d3..6e3076a 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -40,20 +40,6 @@
struct drm_display_mode *desired_mode;
};
-/* mode specified on the command line */
-struct drm_fb_helper_cmdline_mode {
- bool specified;
- bool refresh_specified;
- bool bpp_specified;
- int xres, yres;
- int bpp;
- int refresh;
- bool rb;
- bool interlace;
- bool cvt;
- bool margins;
-};
-
struct drm_fb_helper_surface_size {
u32 fb_width;
u32 fb_height;
@@ -74,8 +60,8 @@
};
struct drm_fb_helper_connector {
- struct drm_fb_helper_cmdline_mode cmdline_mode;
struct drm_connector *connector;
+ struct drm_cmdline_mode cmdline_mode;
};
struct drm_fb_helper {