3  * Rockchip SoC DP (Display Port) interface driver.
117 static int rockchip_dp_pre_init(struct rockchip_dp_device *dp)  in rockchip_dp_pre_init()  argument
119 	reset_control_assert(dp->rst);  in rockchip_dp_pre_init()
121 	reset_control_deassert(dp->rst);  in rockchip_dp_pre_init()
123 	reset_control_assert(dp->apbrst);  in rockchip_dp_pre_init()
125 	reset_control_deassert(dp->apbrst);  in rockchip_dp_pre_init()
132 	struct rockchip_dp_device *dp = pdata_encoder_to_dp(plat_data);  in rockchip_dp_poweron()  local
135 	ret = clk_prepare_enable(dp->pclk);  in rockchip_dp_poweron()
137 		DRM_DEV_ERROR(dp->dev, "failed to enable pclk %d\n", ret);  in rockchip_dp_poweron()
141 	ret = rockchip_dp_pre_init(dp);  in rockchip_dp_poweron()
143 		DRM_DEV_ERROR(dp->dev, "failed to dp pre init %d\n", ret);  in rockchip_dp_poweron()
144 		clk_disable_unprepare(dp->pclk);  in rockchip_dp_poweron()
148 	ret = rockchip_grf_field_write(dp->grf, &dp->data->edp_mode, 1);  in rockchip_dp_poweron()
150 		DRM_DEV_ERROR(dp->dev, "failed to set edp mode %d\n", ret);  in rockchip_dp_poweron()
157 	struct rockchip_dp_device *dp = pdata_encoder_to_dp(plat_data);  in rockchip_dp_powerdown()  local
160 	ret = rockchip_grf_field_write(dp->grf, &dp->data->edp_mode, 0);  in rockchip_dp_powerdown()
162 		DRM_DEV_ERROR(dp->dev, "failed to set edp mode %d\n", ret);  in rockchip_dp_powerdown()
164 	clk_disable_unprepare(dp->pclk);  in rockchip_dp_powerdown()
223 	struct rockchip_dp_device *dp = encoder_to_dp(encoder);  in rockchip_dp_drm_encoder_enable()  local
241 	ret = clk_prepare_enable(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
243 		DRM_DEV_ERROR(dp->dev, "failed to enable grfclk %d\n", ret);  in rockchip_dp_drm_encoder_enable()
247 	ret = drm_of_encoder_active_endpoint(dp->dev->of_node, encoder, &endpoint);  in rockchip_dp_drm_encoder_enable()
264 		DRM_DEV_DEBUG(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG");  in rockchip_dp_drm_encoder_enable()
267 	ret = rockchip_grf_field_write(dp->grf, &dp->data->lcdc_sel, endpoint.id);  in rockchip_dp_drm_encoder_enable()
269 		DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret);  in rockchip_dp_drm_encoder_enable()
271 	clk_disable_unprepare(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
277 	struct rockchip_dp_device *dp = encoder_to_dp(encoder);  in rockchip_dp_drm_encoder_disable()  local
294 		DRM_DEV_ERROR(dp->dev, "line flag irq timed out\n");  in rockchip_dp_drm_encoder_disable()
328 static int rockchip_dp_of_probe(struct rockchip_dp_device *dp)  in rockchip_dp_of_probe()  argument
330 	struct device *dev = dp->dev;  in rockchip_dp_of_probe()
333 	dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");  in rockchip_dp_of_probe()
334 	if (IS_ERR(dp->grf))  in rockchip_dp_of_probe()
335 		return dev_err_probe(dev, PTR_ERR(dp->grf),  in rockchip_dp_of_probe()
338 	dp->grfclk = devm_clk_get_optional(dev, "grf");  in rockchip_dp_of_probe()
339 	if (IS_ERR(dp->grfclk))  in rockchip_dp_of_probe()
340 		return dev_err_probe(dev, PTR_ERR(dp->grfclk),  in rockchip_dp_of_probe()
343 	dp->pclk = devm_clk_get(dev, "pclk");  in rockchip_dp_of_probe()
344 	if (IS_ERR(dp->pclk))  in rockchip_dp_of_probe()
345 		return dev_err_probe(dev, PTR_ERR(dp->pclk),  in rockchip_dp_of_probe()
348 	dp->rst = devm_reset_control_get(dev, "dp");  in rockchip_dp_of_probe()
349 	if (IS_ERR(dp->rst))  in rockchip_dp_of_probe()
350 		return dev_err_probe(dev, PTR_ERR(dp->rst),  in rockchip_dp_of_probe()
351 				     "failed to get dp reset control\n");  in rockchip_dp_of_probe()
353 	dp->apbrst = devm_reset_control_get_optional(dev, "apb");  in rockchip_dp_of_probe()
354 	if (IS_ERR(dp->apbrst))  in rockchip_dp_of_probe()
355 		return dev_err_probe(dev, PTR_ERR(dp->apbrst),  in rockchip_dp_of_probe()
361 static int rockchip_dp_drm_create_encoder(struct rockchip_dp_device *dp)  in rockchip_dp_drm_create_encoder()  argument
363 	struct drm_encoder *encoder = &dp->encoder.encoder;  in rockchip_dp_drm_create_encoder()
364 	struct drm_device *drm_dev = dp->drm_dev;  in rockchip_dp_drm_create_encoder()
365 	struct device *dev = dp->dev;  in rockchip_dp_drm_create_encoder()
387 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_bind()  local
391 	dp->drm_dev = drm_dev;  in rockchip_dp_bind()
393 	ret = rockchip_dp_drm_create_encoder(dp);  in rockchip_dp_bind()
399 	rockchip_drm_encoder_set_crtc_endpoint_id(&dp->encoder,  in rockchip_dp_bind()
402 	dp->plat_data.encoder = &dp->encoder.encoder;  in rockchip_dp_bind()
404 	ret = analogix_dp_bind(dp->adp, drm_dev);  in rockchip_dp_bind()
410 	dp->encoder.encoder.funcs->destroy(&dp->encoder.encoder);  in rockchip_dp_bind()
417 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_unbind()  local
419 	analogix_dp_unbind(dp->adp);  in rockchip_dp_unbind()
420 	dp->encoder.encoder.funcs->destroy(&dp->encoder.encoder);  in rockchip_dp_unbind()
431 	struct rockchip_dp_device *dp = pdata_encoder_to_dp(plat_data);  in rockchip_dp_link_panel()  local
436 	 * or bridge nodes. The driver should go on for the driver-free bridge or the DP  in rockchip_dp_link_panel()
439 	ret = drm_of_find_panel_or_bridge(dp->dev->of_node, 1, 0, &plat_data->panel, NULL);  in rockchip_dp_link_panel()
443 	return component_add(dp->dev, &rockchip_dp_component_ops);  in rockchip_dp_link_panel()
450 	struct rockchip_dp_device *dp;  in rockchip_dp_probe()  local
459 	dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);  in rockchip_dp_probe()
460 	if (!dp)  in rockchip_dp_probe()
468 			dp->data = &dp_data[i];  in rockchip_dp_probe()
475 	if (!dp->data)  in rockchip_dp_probe()
479 	dp->dev = dev;  in rockchip_dp_probe()
480 	dp->adp = ERR_PTR(-ENODEV);  in rockchip_dp_probe()
481 	dp->plat_data.dev_type = dp->data->chip_type;  in rockchip_dp_probe()
482 	dp->plat_data.power_on = rockchip_dp_poweron;  in rockchip_dp_probe()
483 	dp->plat_data.power_off = rockchip_dp_powerdown;  in rockchip_dp_probe()
484 	dp->plat_data.get_modes = rockchip_dp_get_modes;  in rockchip_dp_probe()
486 	ret = rockchip_dp_of_probe(dp);  in rockchip_dp_probe()
490 	platform_set_drvdata(pdev, dp);  in rockchip_dp_probe()
492 	dp->adp = analogix_dp_probe(dev, &dp->plat_data);  in rockchip_dp_probe()
493 	if (IS_ERR(dp->adp))  in rockchip_dp_probe()
494 		return PTR_ERR(dp->adp);  in rockchip_dp_probe()
496 	ret = devm_of_dp_aux_populate_bus(analogix_dp_get_aux(dp->adp), rockchip_dp_link_panel);  in rockchip_dp_probe()
506 			return dev_err_probe(dp->dev, ret, "failed to populate aux bus\n");  in rockchip_dp_probe()
508 		return rockchip_dp_link_panel(analogix_dp_get_aux(dp->adp));  in rockchip_dp_probe()
521 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_suspend()  local
523 	if (IS_ERR(dp->adp))  in rockchip_dp_suspend()
526 	return analogix_dp_suspend(dp->adp);  in rockchip_dp_suspend()
531 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_resume()  local
533 	if (IS_ERR(dp->adp))  in rockchip_dp_resume()
536 	return analogix_dp_resume(dp->adp);  in rockchip_dp_resume()
575 	{.compatible = "rockchip,rk3288-dp", .data = &rk3288_dp },
586 		   .name = "rockchip-dp",