3  * Rockchip SoC DP (Display Port) interface driver.
112 static int rockchip_dp_pre_init(struct rockchip_dp_device *dp)  in rockchip_dp_pre_init()  argument
114 	reset_control_assert(dp->rst);  in rockchip_dp_pre_init()
116 	reset_control_deassert(dp->rst);  in rockchip_dp_pre_init()
123 	struct rockchip_dp_device *dp = pdata_encoder_to_dp(plat_data);  in rockchip_dp_poweron()  local
126 	ret = clk_prepare_enable(dp->pclk);  in rockchip_dp_poweron()
128 		DRM_DEV_ERROR(dp->dev, "failed to enable pclk %d\n", ret);  in rockchip_dp_poweron()
132 	ret = rockchip_dp_pre_init(dp);  in rockchip_dp_poweron()
134 		DRM_DEV_ERROR(dp->dev, "failed to dp pre init %d\n", ret);  in rockchip_dp_poweron()
135 		clk_disable_unprepare(dp->pclk);  in rockchip_dp_poweron()
144 	struct rockchip_dp_device *dp = pdata_encoder_to_dp(plat_data);  in rockchip_dp_powerdown()  local
146 	clk_disable_unprepare(dp->pclk);  in rockchip_dp_powerdown()
205 	struct rockchip_dp_device *dp = encoder_to_dp(encoder);  in rockchip_dp_drm_encoder_enable()  local
219 	ret = clk_prepare_enable(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
221 		DRM_DEV_ERROR(dp->dev, "failed to enable grfclk %d\n", ret);  in rockchip_dp_drm_encoder_enable()
225 	ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);  in rockchip_dp_drm_encoder_enable()
229 	DRM_DEV_DEBUG(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG");  in rockchip_dp_drm_encoder_enable()
231 	ret = rockchip_grf_field_write(dp->grf, &dp->data->lcdc_sel, ret);  in rockchip_dp_drm_encoder_enable()
233 		DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret);  in rockchip_dp_drm_encoder_enable()
235 	clk_disable_unprepare(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
241 	struct rockchip_dp_device *dp = encoder_to_dp(encoder);  in rockchip_dp_drm_encoder_disable()  local
258 		DRM_DEV_ERROR(dp->dev, "line flag irq timed out\n");  in rockchip_dp_drm_encoder_disable()
292 static int rockchip_dp_of_probe(struct rockchip_dp_device *dp)  in rockchip_dp_of_probe()  argument
294 	struct device *dev = dp->dev;  in rockchip_dp_of_probe()
297 	dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");  in rockchip_dp_of_probe()
298 	if (IS_ERR(dp->grf)) {  in rockchip_dp_of_probe()
300 		return PTR_ERR(dp->grf);  in rockchip_dp_of_probe()
303 	dp->grfclk = devm_clk_get(dev, "grf");  in rockchip_dp_of_probe()
304 	if (PTR_ERR(dp->grfclk) == -ENOENT) {  in rockchip_dp_of_probe()
305 		dp->grfclk = NULL;  in rockchip_dp_of_probe()
306 	} else if (PTR_ERR(dp->grfclk) == -EPROBE_DEFER) {  in rockchip_dp_of_probe()
308 	} else if (IS_ERR(dp->grfclk)) {  in rockchip_dp_of_probe()
310 		return PTR_ERR(dp->grfclk);  in rockchip_dp_of_probe()
313 	dp->pclk = devm_clk_get(dev, "pclk");  in rockchip_dp_of_probe()
314 	if (IS_ERR(dp->pclk)) {  in rockchip_dp_of_probe()
316 		return PTR_ERR(dp->pclk);  in rockchip_dp_of_probe()
319 	dp->rst = devm_reset_control_get(dev, "dp");  in rockchip_dp_of_probe()
320 	if (IS_ERR(dp->rst)) {  in rockchip_dp_of_probe()
321 		DRM_DEV_ERROR(dev, "failed to get dp reset control\n");  in rockchip_dp_of_probe()
322 		return PTR_ERR(dp->rst);  in rockchip_dp_of_probe()
328 static int rockchip_dp_drm_create_encoder(struct rockchip_dp_device *dp)  in rockchip_dp_drm_create_encoder()  argument
330 	struct drm_encoder *encoder = &dp->encoder.encoder;  in rockchip_dp_drm_create_encoder()
331 	struct drm_device *drm_dev = dp->drm_dev;  in rockchip_dp_drm_create_encoder()
332 	struct device *dev = dp->dev;  in rockchip_dp_drm_create_encoder()
354 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_bind()  local
358 	dp->drm_dev = drm_dev;  in rockchip_dp_bind()
360 	ret = rockchip_dp_drm_create_encoder(dp);  in rockchip_dp_bind()
366 	rockchip_drm_encoder_set_crtc_endpoint_id(&dp->encoder,  in rockchip_dp_bind()
369 	dp->plat_data.encoder = &dp->encoder.encoder;  in rockchip_dp_bind()
371 	ret = analogix_dp_bind(dp->adp, drm_dev);  in rockchip_dp_bind()
377 	dp->encoder.encoder.funcs->destroy(&dp->encoder.encoder);  in rockchip_dp_bind()
384 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_unbind()  local
386 	analogix_dp_unbind(dp->adp);  in rockchip_dp_unbind()
387 	dp->encoder.encoder.funcs->destroy(&dp->encoder.encoder);  in rockchip_dp_unbind()
400 	struct rockchip_dp_device *dp;  in rockchip_dp_probe()  local
413 	dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);  in rockchip_dp_probe()
414 	if (!dp)  in rockchip_dp_probe()
422 			dp->data = &dp_data[i];  in rockchip_dp_probe()
429 	if (!dp->data)  in rockchip_dp_probe()
433 	dp->dev = dev;  in rockchip_dp_probe()
434 	dp->adp = ERR_PTR(-ENODEV);  in rockchip_dp_probe()
435 	dp->plat_data.panel = panel;  in rockchip_dp_probe()
436 	dp->plat_data.dev_type = dp->data->chip_type;  in rockchip_dp_probe()
437 	dp->plat_data.power_on = rockchip_dp_poweron;  in rockchip_dp_probe()
438 	dp->plat_data.power_off = rockchip_dp_powerdown;  in rockchip_dp_probe()
439 	dp->plat_data.get_modes = rockchip_dp_get_modes;  in rockchip_dp_probe()
441 	ret = rockchip_dp_of_probe(dp);  in rockchip_dp_probe()
445 	platform_set_drvdata(pdev, dp);  in rockchip_dp_probe()
447 	dp->adp = analogix_dp_probe(dev, &dp->plat_data);  in rockchip_dp_probe()
448 	if (IS_ERR(dp->adp))  in rockchip_dp_probe()
449 		return PTR_ERR(dp->adp);  in rockchip_dp_probe()
465 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_suspend()  local
467 	if (IS_ERR(dp->adp))  in rockchip_dp_suspend()
470 	return analogix_dp_suspend(dp->adp);  in rockchip_dp_suspend()
475 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_resume()  local
477 	if (IS_ERR(dp->adp))  in rockchip_dp_resume()
480 	return analogix_dp_resume(dp->adp);  in rockchip_dp_resume()
505 	{.compatible = "rockchip,rk3288-dp", .data = &rk3288_dp },
515 		   .name = "rockchip-dp",