From ac86cba96e2a439883d452772013049f54df2042 Mon Sep 17 00:00:00 2001 From: Oleksandr Andrushchenko Date: Mon, 12 Feb 2018 10:52:51 +0200 Subject: [PATCH] drm/simple_kms_helper: Add {enable|disable}_vblank callback support If simple_kms_helper based driver needs to work with vblanks, then it has to provide drm_driver.{enable|disable}_vblank callbacks, because drm_simple_kms_helper.drm_crtc_funcs does not provide any. At the same time drm_driver.{enable|disable}_vblank callbacks are marked as deprecated and shouldn't be used by new drivers. Fix this by extending drm_simple_kms_helper.drm_crtc_funcs to provide the missing callbacks. Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/1518425574-32671-2-git-send-email-andr2000@gmail.com --- drivers/gpu/drm/drm_simple_kms_helper.c | 24 ++++++++++++++++++++++++ include/drm/drm_simple_kms_helper.h | 18 ++++++++++++++++++ 2 files changed, 42 insertions(+) diff --git a/drivers/gpu/drm/drm_simple_kms_helper.c b/drivers/gpu/drm/drm_simple_kms_helper.c index 2d324a5515f9..6808f732f285 100644 --- a/drivers/gpu/drm/drm_simple_kms_helper.c +++ b/drivers/gpu/drm/drm_simple_kms_helper.c @@ -92,6 +92,28 @@ static const struct drm_crtc_helper_funcs drm_simple_kms_crtc_helper_funcs = { .atomic_disable = drm_simple_kms_crtc_disable, }; +static int drm_simple_kms_crtc_enable_vblank(struct drm_crtc *crtc) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->enable_vblank) + return 0; + + return pipe->funcs->enable_vblank(pipe); +} + +static void drm_simple_kms_crtc_disable_vblank(struct drm_crtc *crtc) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->disable_vblank) + return; + + pipe->funcs->disable_vblank(pipe); +} + static const struct drm_crtc_funcs drm_simple_kms_crtc_funcs = { .reset = drm_atomic_helper_crtc_reset, .destroy = drm_crtc_cleanup, @@ -99,6 +121,8 @@ static const struct drm_crtc_funcs drm_simple_kms_crtc_funcs = { .page_flip = drm_atomic_helper_page_flip, .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, + .enable_vblank = drm_simple_kms_crtc_enable_vblank, + .disable_vblank = drm_simple_kms_crtc_disable_vblank, }; static int drm_simple_kms_plane_atomic_check(struct drm_plane *plane, diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h index d9e4c3c3f009..c4e32c5a18fc 100644 --- a/include/drm/drm_simple_kms_helper.h +++ b/include/drm/drm_simple_kms_helper.h @@ -107,6 +107,24 @@ struct drm_simple_display_pipe_funcs { */ void (*cleanup_fb)(struct drm_simple_display_pipe *pipe, struct drm_plane_state *plane_state); + + /** + * @enable_vblank: + * + * Optional, called by &drm_crtc_funcs.enable_vblank. Please read + * the documentation for the &drm_crtc_funcs.enable_vblank hook for + * more details. + */ + int (*enable_vblank)(struct drm_simple_display_pipe *pipe); + + /** + * @disable_vblank: + * + * Optional, called by &drm_crtc_funcs.disable_vblank. Please read + * the documentation for the &drm_crtc_funcs.disable_vblank hook for + * more details. + */ + void (*disable_vblank)(struct drm_simple_display_pipe *pipe); }; /** -- 2.11.0