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| author |   Thomas Zimmermann <tzimmermann@suse.de> | 2020-01-23 14:59:24 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-02-13 13:08:13 +0100 |
| commit | 7fe3f0d15aac6c98a97e6d7086f5a6b7bc4ccae4 (patch) | |
| tree | ff005fcab13165c3859c8c4cdce19b181f666e26 /include/drm/drm_modeset_helper_vtables.h | |
| parent | drm: Add get_scanout_position() to struct drm_crtc_helper_funcs (diff) | |
| download | wireguard-linux-7fe3f0d15aac6c98a97e6d7086f5a6b7bc4ccae4.tar.xz wireguard-linux-7fe3f0d15aac6c98a97e6d7086f5a6b7bc4ccae4.zip | |
drm: Add get_vblank_timestamp() to struct drm_crtc_funcs
The callback get_vblank_timestamp() is currently located in struct
drm_driver, but really belongs into struct drm_crtc_funcs. Add an
equivalent there. Driver will be converted in separate patches.
The default implementation is drm_calc_vbltimestamp_from_scanoutpos().
The patch adds drm_crtc_vblank_helper_get_vblank_timestamp(), which is
an implementation for the CRTC callback.
v4:
* more readable code for setting high_prec (Ville, Jani)
v3:
* use refactored timestamp calculation to minimize duplicated code
* do more checks for crtc != NULL to support legacy drivers
v2:
* rename helper to drm_crtc_vblank_helper_get_vblank_timestamp()
* replace drm_calc_vbltimestamp_from_scanoutpos() with
drm_crtc_vblank_helper_get_vblank_timestamp() in docs
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200123135943.24140-4-tzimmermann@suse.de
Diffstat (limited to 'include/drm/drm_modeset_helper_vtables.h')
| -rw-r--r-- | include/drm/drm_modeset_helper_vtables.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h index e398512bfd5f..0afaf58da40d 100644 --- a/include/drm/drm_modeset_helper_vtables.h +++ b/include/drm/drm_modeset_helper_vtables.h @@ -459,8 +459,8 @@ struct drm_crtc_helper_funcs { * Returns the current display scanout position from a CRTC and an * optional accurate ktime_get() timestamp of when the position was * measured. Note that this is a helper callback which is only used - * if a driver uses drm_calc_vbltimestamp_from_scanoutpos() for the - * @drm_driver.get_vblank_timestamp callback. + * if a driver uses drm_crtc_vblank_helper_get_vblank_timestamp() + * for the @drm_crtc_funcs.get_vblank_timestamp callback. * * Parameters: * |