format = rzg2l_du_format_info(mode_cmd->pixel_format); if (!format) {
dev_dbg(dev->dev, "unsupported pixel format %p4cc\n",
&mode_cmd->pixel_format); return ERR_PTR(-EINVAL);
}
/* * On RZ/G2L the memory interface is handled by the VSP that limits the * pitch to 65535 bytes.
*/
max_pitch = 65535; if (mode_cmd->pitches[0] > max_pitch) {
dev_dbg(dev->dev, "invalid pitch value %u\n",
mode_cmd->pitches[0]); return ERR_PTR(-EINVAL);
}
/* Locate the connected entity and initialize the encoder. */
entity = of_graph_get_remote_port_parent(ep->local_node); if (!entity) {
dev_dbg(rcdu->dev, "unconnected endpoint %pOF, skipping\n",
ep->local_node); return -ENODEV;
}
if (!of_device_is_available(entity)) {
dev_dbg(rcdu->dev, "connected entity %pOF is disabled, skipping\n",
entity);
of_node_put(entity); return -ENODEV;
}
ret = rzg2l_du_encoder_init(rcdu, output, entity); if (ret && ret != -EPROBE_DEFER && ret != -ENOLINK)
dev_warn(rcdu->dev, "failed to initialize encoder %pOF on output %s (%d), skipping\n",
entity, rzg2l_du_output_name(output), ret);
/* * Iterate over the endpoints and create one encoder for each output * pipeline.
*/
for_each_endpoint_of_node(np, ep_node) { enum rzg2l_du_output output; struct of_endpoint ep; unsignedint i; int ret;
ret = of_graph_parse_endpoint(ep_node, &ep); if (ret < 0) {
of_node_put(ep_node); return ret;
}
/* Find the output route corresponding to the port number. */ for (i = 0; i < RZG2L_DU_OUTPUT_MAX; ++i) { if (rcdu->info->routes[i].possible_outputs &&
rcdu->info->routes[i].port == ep.port) {
output = i; break;
}
}
if (i == RZG2L_DU_OUTPUT_MAX) {
dev_warn(rcdu->dev, "port %u references unexisting output, skipping\n",
ep.port); continue;
}
/* Process the output pipeline. */
ret = rzg2l_du_encoders_init_one(rcdu, output, &ep); if (ret < 0) { if (ret == -EPROBE_DEFER) {
of_node_put(ep_node); return ret;
}
/* * First parse the DT vsps property to populate the list of VSPs. Each * entry contains a pointer to the VSP DT node and a bitmask of the * connected DU CRTCs.
*/
ret = of_property_count_u32_elems(np, vsps_prop_name);
cells = ret / rcdu->num_crtcs - 1; if (cells != 1) return -EINVAL;
for (i = 0; i < rcdu->num_crtcs; ++i) { unsignedint j;
ret = of_parse_phandle_with_fixed_args(np, vsps_prop_name,
cells, i, &args); if (ret < 0) goto done;
/* * Add the VSP to the list or update the corresponding existing * entry if the VSP has already been added.
*/ for (j = 0; j < vsps_count; ++j) { if (vsps[j].np == args.np) break;
}
if (j < vsps_count)
of_node_put(args.np); else
vsps[vsps_count++].np = args.np;
vsps[j].crtcs_mask |= BIT(i);
/* * Store the VSP pointer and pipe index in the CRTC. If the * second cell of the 'renesas,vsps' specifier isn't present, * default to 0.
*/
rcdu->crtcs[i].vsp = &rcdu->vsps[j];
rcdu->crtcs[i].vsp_pipe = cells >= 1 ? args.args[0] : 0;
}
/* * Then initialize all the VSPs from the node pointers and CRTCs bitmask * computed previously.
*/ for (i = 0; i < vsps_count; ++i) { struct rzg2l_du_vsp *vsp = &rcdu->vsps[i];
vsp->index = i;
vsp->dev = rcdu;
ret = rzg2l_du_vsp_init(vsp, vsps[i].np, vsps[i].crtcs_mask); if (ret) goto done;
}
done: for (i = 0; i < ARRAY_SIZE(vsps); ++i)
of_node_put(vsps[i].np);
return ret;
}
int rzg2l_du_modeset_init(struct rzg2l_du_device *rcdu)
{ struct drm_device *dev = &rcdu->ddev; struct drm_encoder *encoder; unsignedint num_encoders; int ret;
ret = drmm_mode_config_init(dev); if (ret) return ret;
/* * The RZ DU was designed to support a frame size of 1920x1200 (landscape) * or 1200x1920 (portrait).
*/
dev->mode_config.max_width = 1920;
dev->mode_config.max_height = 1920;
/* * Initialize vertical blanking interrupts handling. Start with vblank * disabled for all CRTCs.
*/
ret = drm_vblank_init(dev, rcdu->num_crtcs); if (ret < 0) return ret;
/* Initialize the compositors. */
ret = rzg2l_du_vsps_init(rcdu); if (ret < 0) return ret;
/* Create the CRTCs. */
ret = rzg2l_du_crtc_create(rcdu); if (ret < 0) return ret;
/* Initialize the encoders. */
ret = rzg2l_du_encoders_init(rcdu); if (ret < 0) return dev_err_probe(rcdu->dev, ret, "failed to initialize encoders\n");
if (ret == 0) {
dev_err(rcdu->dev, "error: no encoder could be initialized\n"); return -EINVAL;
}
num_encoders = ret;
/* * Set the possible CRTCs and possible clones. There's always at least * one way for all encoders to clone each other, set all bits in the * possible clones field.
*/
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { struct rzg2l_du_encoder *renc = to_rzg2l_encoder(encoder); conststruct rzg2l_du_output_routing *route =
&rcdu->info->routes[renc->output];
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