diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc_helper.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index f7af91cb273d..4c200931a6bc 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -336,7 +336,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, struct drm_framebuffer *old_fb) { struct drm_device *dev = crtc->dev; - struct drm_display_mode *adjusted_mode, saved_mode; + struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode; struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; struct drm_encoder_helper_funcs *encoder_funcs; int saved_x, saved_y; @@ -350,6 +350,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, if (!crtc->enabled) return true; + saved_hwmode = crtc->hwmode; saved_mode = crtc->mode; saved_x = crtc->x; saved_y = crtc->y; @@ -427,11 +428,21 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, } + /* Store real post-adjustment hardware mode. */ + crtc->hwmode = *adjusted_mode; + + /* Calculate and store various constants which + * are later needed by vblank and swap-completion + * timestamping. They are derived from true hwmode. + */ + drm_calc_timestamping_constants(crtc); + /* XXX free adjustedmode */ drm_mode_destroy(dev, adjusted_mode); /* FIXME: add subpixel order */ done: if (!ret) { + crtc->hwmode = saved_hwmode; crtc->mode = saved_mode; crtc->x = saved_x; crtc->y = saved_y; |