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Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
| -rw-r--r-- | drivers/gpu/drm/drm_modes.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index ac6a35212501..1d9d4ca086a8 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -797,6 +797,27 @@ int drm_mode_vrefresh(const struct drm_display_mode *mode) EXPORT_SYMBOL(drm_mode_vrefresh); /** + * drm_mode_get_hv_timing - Fetches hdisplay/vdisplay for given mode + * @mode: mode to query + * @hdisplay: hdisplay value to fill in + * @vdisplay: vdisplay value to fill in + * + * The vdisplay value will be doubled if the specified mode is a stereo mode of + * the appropriate layout. + */ +void drm_mode_get_hv_timing(const struct drm_display_mode *mode, + int *hdisplay, int *vdisplay) +{ + struct drm_display_mode adjusted; + + drm_mode_copy(&adjusted, mode); + drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); + *hdisplay = adjusted.crtc_hdisplay; + *vdisplay = adjusted.crtc_vdisplay; +} +EXPORT_SYMBOL(drm_mode_get_hv_timing); + +/** * drm_mode_set_crtcinfo - set CRTC modesetting timing parameters * @p: mode * @adjust_flags: a combination of adjustment flags |