@@ -348,7 +348,8 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
{
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
plane);
- struct drm_plane_state *old_state = plane->state;
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
+ plane);
struct drm_crtc_state *crtc_state;
struct device *dev = plane->dev->dev;
struct drm_framebuffer *fb = new_state->fb;
@@ -406,12 +406,14 @@ static int mdp5_plane_atomic_check_with_state(struct drm_crtc_state *crtc_state,
static int mdp5_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
+ struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state,
+ plane);
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
plane);
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
- crtc = new_plane_state->crtc ? new_plane_state->crtc : plane->state->crtc;
+ crtc = new_plane_state->crtc ? new_plane_state->crtc : old_plane_state->crtc;
if (!crtc)
return 0;
@@ -26,7 +26,8 @@ static int tilcdc_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
plane);
struct drm_crtc_state *crtc_state;
- struct drm_plane_state *old_state = plane->state;
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
+ plane);
unsigned int pitch;
if (!new_state->crtc)
Many drivers reference the plane->state pointer in order to get the current plane state in their atomic_check hook, which would be the old plane state in the global atomic state since _swap_state hasn't happened when atomic_check is run. Use the drm_atomic_get_old_plane_state helper to get that state to make it more obvious. This was made using the coccinelle script below: @ plane_atomic_func @ identifier helpers; identifier func; @@ static struct drm_plane_helper_funcs helpers = { ..., .atomic_check = func, ..., }; @ replaces_old_state @ identifier plane_atomic_func.func; identifier plane, state, plane_state; @@ func(struct drm_plane *plane, struct drm_atomic_state *state) { ... - struct drm_plane_state *plane_state = plane->state; + struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane); ... } @@ identifier plane_atomic_func.func; identifier plane, state, plane_state; @@ func(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *plane_state = drm_atomic_get_old_plane_state(state, plane); ... - plane->state + plane_state ... } @ adds_old_state @ identifier plane_atomic_func.func; identifier plane, state; @@ func(struct drm_plane *plane, struct drm_atomic_state *state) { + struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane); ... - plane->state + old_plane_state ... } @ include depends on adds_old_state || replaces_old_state @ @@ #include <drm/drm_atomic.h> @ no_include depends on !include && (adds_old_state || replaces_old_state) @ @@ + #include <drm/drm_atomic.h> #include <drm/...> Signed-off-by: Maxime Ripard <maxime@cerno.tech> --- drivers/gpu/drm/imx/ipuv3-plane.c | 3 ++- drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 4 +++- drivers/gpu/drm/tilcdc/tilcdc_plane.c | 3 ++- 3 files changed, 7 insertions(+), 3 deletions(-)