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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-08-06 14:29:52 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2022-10-19 16:55:40 +0300 |
| commit | 51ae3bd4f0577d250c2b95f58fa93e7937136498 (patch) | |
| tree | c00766a25097b3a111a3c89a113600d1a3676bf5 /drivers/gpu/drm/xlnx/zynqmp_dpsub.c | |
| parent | 3662bbfca5d2b83c5d549f237a8d87f69aefa46c (diff) | |
| download | linux-51ae3bd4f0577d250c2b95f58fa93e7937136498.tar.xz | |
drm: xlnx: zynqmp_dpsub: Support operation without DMA engine
To prepare for usage of the DPSUB as a DisplayPort bridge without
creating a DRM device, make initialization and usage of the DMA engine
optional. The flag that controls this feature is currently hardcoded to
operating with the DMA engine, this will be made dynamic based on the
device tree configuration in a subsequent change.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/xlnx/zynqmp_dpsub.c')
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index 6627a1ec7791..6e4cd4479de1 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -158,6 +158,7 @@ static int zynqmp_dpsub_parse_dt(struct zynqmp_dpsub *dpsub) if (!np) { dev_warn(dpsub->dev, "missing ports, update DT bindings\n"); dpsub->connected_ports = BIT(ZYNQMP_DPSUB_PORT_OUT_DP); + dpsub->dma_enabled = true; return 0; } @@ -177,6 +178,8 @@ static int zynqmp_dpsub_parse_dt(struct zynqmp_dpsub *dpsub) (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))) dev_warn(dpsub->dev, "live video unsupported, ignoring\n"); + dpsub->dma_enabled = true; + if (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_AUDIO)) dev_warn(dpsub->dev, "live audio unsupported, ignoring\n"); |