drm_crtc_helper_set_mode — internal helper to set a mode
bool drm_crtc_helper_set_mode ( | struct drm_crtc * crtc, |
| struct drm_display_mode * mode, | |
| int x, | |
| int y, | |
struct drm_framebuffer * old_fb); |
crtcCRTC to program
modemode to use
xhorizontal offset into the surface
yvertical offset into the surface
old_fbold framebuffer, for cleanup
Try to set mode on crtc. Give crtc and its associated connectors a chance
to fixup or reject the mode prior to trying to set it. This is an internal
helper that drivers could e.g. use to update properties that require the
entire output pipe to be disabled and re-enabled in a new configuration. For
example for changing whether audio is enabled on a hdmi link or for changing
panel fitter or dither attributes. It is also called by the
drm_crtc_helper_set_config helper function to drive the mode setting
sequence.