Lines Matching defs:dpsub
37 struct zynqmp_dpsub *dpsub = dev_get_drvdata(dev);
39 if (!dpsub->drm)
42 return drm_mode_config_helper_suspend(&dpsub->drm->dev);
47 struct zynqmp_dpsub *dpsub = dev_get_drvdata(dev);
49 if (!dpsub->drm)
52 return drm_mode_config_helper_resume(&dpsub->drm->dev);
65 * @dpsub: DisplayPort subsystem
71 bool zynqmp_dpsub_audio_enabled(struct zynqmp_dpsub *dpsub)
73 return !!dpsub->aud_clk;
78 * @dpsub: DisplayPort subsystem
82 unsigned int zynqmp_dpsub_get_audio_clk_rate(struct zynqmp_dpsub *dpsub)
84 if (zynqmp_dpsub_audio_enabled(dpsub))
86 return clk_get_rate(dpsub->aud_clk);
93 static int zynqmp_dpsub_init_clocks(struct zynqmp_dpsub *dpsub)
97 dpsub->apb_clk = devm_clk_get(dpsub->dev, "dp_apb_clk");
98 if (IS_ERR(dpsub->apb_clk))
99 return PTR_ERR(dpsub->apb_clk);
101 ret = clk_prepare_enable(dpsub->apb_clk);
103 dev_err(dpsub->dev, "failed to enable the APB clock\n");
111 dpsub->vid_clk = devm_clk_get(dpsub->dev, "dp_live_video_in_clk");
112 if (!IS_ERR(dpsub->vid_clk))
113 dpsub->vid_clk_from_ps = false;
114 else if (PTR_ERR(dpsub->vid_clk) == -EPROBE_DEFER)
115 return PTR_ERR(dpsub->vid_clk);
117 if (IS_ERR_OR_NULL(dpsub->vid_clk)) {
118 dpsub->vid_clk = devm_clk_get(dpsub->dev, "dp_vtc_pixel_clk_in");
119 if (IS_ERR(dpsub->vid_clk)) {
120 dev_err(dpsub->dev, "failed to init any video clock\n");
121 return PTR_ERR(dpsub->vid_clk);
123 dpsub->vid_clk_from_ps = true;
131 dpsub->aud_clk = devm_clk_get(dpsub->dev, "dp_live_audio_aclk");
132 if (!IS_ERR(dpsub->aud_clk)) {
133 dpsub->aud_clk_from_ps = false;
137 dpsub->aud_clk = devm_clk_get(dpsub->dev, "dp_aud_clk");
138 if (!IS_ERR(dpsub->aud_clk)) {
139 dpsub->aud_clk_from_ps = true;
143 dev_info(dpsub->dev, "audio disabled due to missing clock\n");
147 static int zynqmp_dpsub_parse_dt(struct zynqmp_dpsub *dpsub)
157 np = of_get_child_by_name(dpsub->dev->of_node, "ports");
160 dev_warn(dpsub->dev, "missing ports, update DT bindings\n");
161 dpsub->connected_ports = BIT(ZYNQMP_DPSUB_PORT_OUT_DP);
162 dpsub->dma_enabled = true;
170 np = of_graph_get_remote_node(dpsub->dev->of_node, i, -1);
172 dpsub->connected_ports |= BIT(i);
178 if ((dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO)) &&
179 (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))) {
180 dev_err(dpsub->dev, "only one live video input is supported\n");
184 if ((dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO)) ||
185 (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))) {
186 if (dpsub->vid_clk_from_ps) {
187 dev_err(dpsub->dev,
192 dpsub->dma_enabled = true;
195 if (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_AUDIO))
196 dev_warn(dpsub->dev, "live audio unsupported, ignoring\n");
198 if ((dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_OUT_VIDEO)) ||
199 (dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_OUT_AUDIO)))
200 dev_warn(dpsub->dev, "output to PL unsupported, ignoring\n");
202 if (!(dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_OUT_DP))) {
203 dev_err(dpsub->dev, "DP output port not connected\n");
210 void zynqmp_dpsub_release(struct zynqmp_dpsub *dpsub)
212 kfree(dpsub->disp);
213 kfree(dpsub->dp);
214 kfree(dpsub);
219 struct zynqmp_dpsub *dpsub;
223 dpsub = kzalloc(sizeof(*dpsub), GFP_KERNEL);
224 if (!dpsub)
227 dpsub->dev = &pdev->dev;
228 platform_set_drvdata(pdev, dpsub);
230 ret = dma_set_mask(dpsub->dev, DMA_BIT_MASK(ZYNQMP_DISP_MAX_DMA_BIT));
237 ret = zynqmp_dpsub_init_clocks(dpsub);
241 ret = zynqmp_dpsub_parse_dt(dpsub);
251 ret = zynqmp_dp_probe(dpsub);
255 ret = zynqmp_disp_probe(dpsub);
259 if (dpsub->dma_enabled) {
260 ret = zynqmp_dpsub_drm_init(dpsub);
264 drm_bridge_add(dpsub->bridge);
272 zynqmp_disp_remove(dpsub);
274 zynqmp_dp_remove(dpsub);
277 clk_disable_unprepare(dpsub->apb_clk);
280 if (!dpsub->drm)
281 zynqmp_dpsub_release(dpsub);
287 struct zynqmp_dpsub *dpsub = platform_get_drvdata(pdev);
289 if (dpsub->drm)
290 zynqmp_dpsub_drm_cleanup(dpsub);
292 drm_bridge_remove(dpsub->bridge);
294 zynqmp_disp_remove(dpsub);
295 zynqmp_dp_remove(dpsub);
298 clk_disable_unprepare(dpsub->apb_clk);
301 if (!dpsub->drm)
302 zynqmp_dpsub_release(dpsub);
307 struct zynqmp_dpsub *dpsub = platform_get_drvdata(pdev);
309 if (!dpsub->drm)
312 drm_atomic_helper_shutdown(&dpsub->drm->dev);
316 { .compatible = "xlnx,zynqmp-dpsub-1.7", },
326 .name = "zynqmp-dpsub",