[PATCH v4 3/6] drm/tegra: Let core take care of normalizing the zpos

[Peter Ujfalusi]

Instead of re-implementing the drm_atomic_helper_check() locally with just
adding drm_atomic_normalize_zpos() into it, set the
drm_mode_config->normalize_zpos.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
CC: Thierry Reding <thierry.reding at gmail.com>
Acked-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/tegra/drm.c | 27 +++------------------------
 1 file changed, 3 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index d50bddb2e447..037c79d9c6fd 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -33,29 +33,6 @@ struct tegra_drm_file {
 	struct mutex lock;
 };
 
-static int tegra_atomic_check(struct drm_device *drm,
-			      struct drm_atomic_state *state)
-{
-	int err;
-
-	err = drm_atomic_helper_check_modeset(drm, state);
-	if (err < 0)
-		return err;
-
-	err = drm_atomic_normalize_zpos(drm, state);
-	if (err < 0)
-		return err;
-
-	err = drm_atomic_helper_check_planes(drm, state);
-	if (err < 0)
-		return err;
-
-	if (state->legacy_cursor_update)
-		state->async_update = !drm_atomic_helper_async_check(drm, state);
-
-	return 0;
-}
-
 static struct drm_atomic_state *
 tegra_atomic_state_alloc(struct drm_device *drm)
 {
@@ -90,7 +67,7 @@ static const struct drm_mode_config_funcs tegra_drm_mode_config_funcs = {
 #ifdef CONFIG_DRM_FBDEV_EMULATION
 	.output_poll_changed = drm_fb_helper_output_poll_changed,
 #endif
-	.atomic_check = tegra_atomic_check,
+	.atomic_check = drm_atomic_helper_check,
 	.atomic_commit = drm_atomic_helper_commit,
 	.atomic_state_alloc = tegra_atomic_state_alloc,
 	.atomic_state_clear = tegra_atomic_state_clear,
@@ -179,6 +156,8 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
 
 	drm->mode_config.allow_fb_modifiers = true;
 
+	drm->mode_config.normalize_zpos = true;
+
 	drm->mode_config.funcs = &tegra_drm_mode_config_funcs;
 	drm->mode_config.helper_private = &tegra_drm_mode_config_helpers;
 
-- 
Peter

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
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