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| author | Michael Tretter <m.tretter@pengutronix.de> | 2026-02-19 14:32:58 +0300 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2026-03-13 18:27:06 +0300 |
| commit | ecbcceea4767dc11881986cb41a9962cac6f6c39 (patch) | |
| tree | 83dc7cc27e1488082a25daff0e366bfa371b3b67 | |
| parent | a872e90e3668f9f8d0bc9c2fae3c328835b98bf0 (diff) | |
| download | linux-ecbcceea4767dc11881986cb41a9962cac6f6c39.tar.xz | |
drm/imx: ipuv3-plane: support underlay plane
The IPUv3 overlay plane may be placed over or under the primary plane.
Set the zpos of the primary to an immutable position of 1 to have the
possibility to place the other plane underneath it.
Set the zpos of other planes (the overlay plane) to a mutable value
between 0 (the lowest possible value of a zpos) and directly above the
primary plane with the latter being the default.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patch.msgid.link/20260219-drm-imx-underlay-plane-v2-2-26ef829c5483@pengutronix.de
| -rw-r--r-- | drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c index ff483089b26b..c1c7be4e26c6 100644 --- a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c @@ -890,7 +890,7 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu, { struct ipu_plane *ipu_plane; const uint64_t *modifiers = ipu_format_modifiers; - unsigned int zpos = (type == DRM_PLANE_TYPE_PRIMARY) ? 0 : 1; + unsigned int primary_zpos = 1; unsigned int format_count; const uint32_t *formats; int ret; @@ -923,17 +923,16 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu, ipu_plane->dma = dma; ipu_plane->dp_flow = dp; - if (type == DRM_PLANE_TYPE_PRIMARY) + if (type == DRM_PLANE_TYPE_PRIMARY) { drm_plane_helper_add(&ipu_plane->base, &ipu_primary_plane_helper_funcs); - else - drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs); - - if (dp == IPU_DP_FLOW_SYNC_BG || dp == IPU_DP_FLOW_SYNC_FG) - ret = drm_plane_create_zpos_property(&ipu_plane->base, zpos, 0, - 1); - else ret = drm_plane_create_zpos_immutable_property(&ipu_plane->base, - 0); + primary_zpos); + } else { + drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs); + ret = drm_plane_create_zpos_property(&ipu_plane->base, + primary_zpos + 1, 0, + primary_zpos + 1); + } if (ret) return ERR_PTR(ret); |