Add drm_crtc_helper_disable_planes() for disabling all planes associated with the given CRTC and having disable callback. This can be used for instance in CRTC helper disable callback.
Signed-off-by: Jyri Sarha jsarha@ti.com --- So it appears that this is the only missing piece for disabling and enabling planes with their associated CRTCs for the times when the CRTCs are blanked or otherwise unused.
drivers/gpu/drm/drm_crtc_helper.c | 26 ++++++++++++++++++++++++++ include/drm/drm_crtc_helper.h | 1 + 2 files changed, 27 insertions(+)
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index ef53475..33dddd5 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -410,6 +410,32 @@ done: } EXPORT_SYMBOL(drm_crtc_helper_set_mode);
+/** + * drm_crtc_helper_disable_planes - helper to disable CRTC's planes + * @crtc: CRTC + * + * Disables all planes associated with the given CRTC and having + * disable callback. This can be used for instance in CRTC helper + * disable callback. + */ +void drm_crtc_helper_disable_planes(struct drm_crtc *crtc) +{ + struct drm_plane *plane; + int i; + + drm_for_each_plane(plane, crtc->dev) { + const struct drm_plane_helper_funcs *plane_funcs = + plane->helper_private; + + if (plane->state->crtc != crtc || !plane_funcs) + continue; + + if (plane_funcs->atomic_disable) + plane_funcs->atomic_disable(plane, NULL); + } +} +EXPORT_SYMBOL(drm_crtc_helper_disable_planes); + static void drm_crtc_helper_disable(struct drm_crtc *crtc) { diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h index 3febb4b..d47051f 100644 --- a/include/drm/drm_crtc_helper.h +++ b/include/drm/drm_crtc_helper.h @@ -189,6 +189,7 @@ extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, int x, int y, struct drm_framebuffer *old_fb); +extern void drm_crtc_helper_disable_planes(struct drm_crtc *crtc); extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc); extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);