#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <drm/drm_edid.h>
+#include <drm/drm_fourcc.h>
#include <drm/drm_modes.h>
#include <drm/drm_of.h>
zynqmp_dp_write(dp, ZYNQMP_DP_USER_DATA_COUNT_PER_LANE, reg);
}
+/* -----------------------------------------------------------------------------
+ * DISP Configuration
+ */
+
+static void zynqmp_dp_disp_enable(struct zynqmp_dp *dp,
+ struct drm_bridge_state *old_bridge_state)
+{
+ enum zynqmp_dpsub_layer_id layer_id;
+ struct zynqmp_disp_layer *layer;
+ const struct drm_format_info *info;
+
+ if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO))
+ layer_id = ZYNQMP_DPSUB_LAYER_VID;
+ else if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))
+ layer_id = ZYNQMP_DPSUB_LAYER_GFX;
+ else
+ return;
+
+ layer = dp->dpsub->layers[layer_id];
+
+ /* TODO: Make the format configurable. */
+ info = drm_format_info(DRM_FORMAT_YUV422);
+ zynqmp_disp_layer_set_format(layer, info);
+ zynqmp_disp_layer_enable(layer, ZYNQMP_DPSUB_LAYER_LIVE);
+
+ if (layer_id == ZYNQMP_DPSUB_LAYER_GFX)
+ zynqmp_disp_blend_set_global_alpha(dp->dpsub->disp, true, 255);
+ else
+ zynqmp_disp_blend_set_global_alpha(dp->dpsub->disp, false, 0);
+
+ zynqmp_disp_enable(dp->dpsub->disp);
+}
+
+static void zynqmp_dp_disp_disable(struct zynqmp_dp *dp,
+ struct drm_bridge_state *old_bridge_state)
+{
+ struct zynqmp_disp_layer *layer;
+
+ if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO))
+ layer = dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_VID];
+ else if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))
+ layer = dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_GFX];
+ else
+ return;
+
+ zynqmp_disp_disable(dp->dpsub->disp);
+ zynqmp_disp_layer_disable(layer);
+}
+
/* -----------------------------------------------------------------------------
* DRM Bridge
*/
pm_runtime_get_sync(dp->dev);
+ zynqmp_dp_disp_enable(dp, old_bridge_state);
+
/*
* Retrieve the CRTC mode and adjusted mode. This requires a little
* dance to go from the bridge to the encoder, to the connector and to
ZYNQMP_DP_TX_PHY_POWER_DOWN_ALL);
if (zynqmp_dpsub_audio_enabled(dp->dpsub))
zynqmp_dp_write(dp, ZYNQMP_DP_TX_AUDIO_CONTROL, 0);
+
+ zynqmp_dp_disp_disable(dp, old_bridge_state);
+
pm_runtime_put_sync(dp->dev);
}
#include <linux/slab.h>
#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
#include <drm/drm_modeset_helper.h>
#include <drm/drm_module.h>
}
/* Sanity checks. */
- if ((dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO)) ||
- (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX)))
- dev_warn(dpsub->dev, "live video unsupported, ignoring\n");
+ if ((dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO)) &&
+ (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))) {
+ dev_err(dpsub->dev, "only one live video input is supported\n");
+ return -EINVAL;
+ }
- dpsub->dma_enabled = true;
+ if ((dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO)) ||
+ (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))) {
+ if (dpsub->vid_clk_from_ps) {
+ dev_err(dpsub->dev,
+ "live video input requires PL clock\n");
+ return -EINVAL;
+ }
+ } else {
+ dpsub->dma_enabled = true;
+ }
if (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_AUDIO))
dev_warn(dpsub->dev, "live audio unsupported, ignoring\n");
if (ret)
goto err_dp;
- ret = zynqmp_dpsub_drm_init(dpsub);
- if (ret)
- goto err_disp;
+ if (dpsub->dma_enabled) {
+ ret = zynqmp_dpsub_drm_init(dpsub);
+ if (ret)
+ goto err_disp;
+ } else {
+ drm_bridge_add(dpsub->bridge);
+ }
dev_info(&pdev->dev, "ZynqMP DisplayPort Subsystem driver probed");
if (dpsub->drm)
zynqmp_dpsub_drm_cleanup(dpsub);
+ else
+ drm_bridge_remove(dpsub->bridge);
zynqmp_disp_remove(dpsub);
zynqmp_dp_remove(dpsub);