diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2018-03-21 12:20:29 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2018-03-28 09:45:45 +0300 |
| commit | 23936ba940fbccf08f9f61d7c6d39ba0feb383bc (patch) | |
| tree | f2dc50adf009e09a2f32469e9e16b1c63442cb34 /drivers/gpu/drm/omapdrm/omap_drv.c | |
| parent | 75def7785f4901b65a89dc99ea9506b1395242fa (diff) | |
drm/omap: Use normalized zpos for plane placement
Planes with identical zpos value will result undefined behavior:
disappearing planes, screen flickering and it is not supported by the
hardware.
Use normalized zpos to make sure that we don't encounter invalid
configuration.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180321102029.15248-7-peter.ujfalusi@ti.com
Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_drv.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_drv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index 3632854c2b91..ef3b0e3571ec 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -319,6 +319,9 @@ static int omap_modeset_init(struct drm_device *dev) dev->mode_config.max_width = 8192; dev->mode_config.max_height = 8192; + /* We want the zpos to be normalized */ + dev->mode_config.normalize_zpos = true; + dev->mode_config.funcs = &omap_mode_config_funcs; dev->mode_config.helper_private = &omap_mode_config_helper_funcs; |