From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
The atomic helper to disable planes also uses the optional
.atomic_disable() helper. The unique operation it does is calling
.win_disable()
exynos_drm_fb_get_buf_cnt() needs a fb check too to avoid a null pointer.
Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_drm_fb.c | 2 +-
drivers/gpu/drm/exynos/exynos_drm_plane.c | 29 ++++++++++++++++-------------
2 files changed, 17 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c
index 142eb4e..bf814c8 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -136,7 +136,7 @@ unsigned int exynos_drm_fb_get_buf_cnt(struct drm_framebuffer *fb)
exynos_fb = to_exynos_fb(fb);
- return exynos_fb->buf_cnt;
+ return exynos_fb ? exynos_fb->buf_cnt : 0;
}
struct drm_framebuffer *
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index b218b7a..87078db 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -162,21 +162,9 @@ exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos);
}
-static int exynos_disable_plane(struct drm_plane *plane)
-{
- struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
- struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(plane->crtc);
-
- if (exynos_crtc && exynos_crtc->ops->win_disable)
- exynos_crtc->ops->win_disable(exynos_crtc,
- exynos_plane->zpos);
-
- return 0;
-}
-
static struct drm_plane_funcs exynos_plane_funcs = {
.update_plane = drm_plane_helper_update,
- .disable_plane = exynos_disable_plane,
+ .disable_plane = drm_plane_helper_disable,
.destroy = drm_plane_cleanup,
};
@@ -201,9 +189,24 @@ static void exynos_plane_atomic_update(struct drm_plane *plane,
state->src_w >> 16, state->src_h >> 16);
}
+static void exynos_plane_atomic_disable(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+ struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(old_state->crtc);
+
+ if (!old_state->crtc)
+ return;
+
+ if (exynos_crtc->ops->win_disable)
+ exynos_crtc->ops->win_disable(exynos_crtc,
+ exynos_plane->zpos);
+}
+
static const struct drm_plane_helper_funcs plane_helper_funcs = {
.atomic_check = exynos_plane_atomic_check,
.atomic_update = exynos_plane_atomic_update,
+ .atomic_disable = exynos_plane_atomic_disable,
};
static void exynos_plane_attach_zpos_property(struct drm_plane *plane,
--
2.1.0
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