3  * Rockchip SoC DP (Display Port) interface driver.
86 static int rockchip_dp_pre_init(struct rockchip_dp_device *dp)  in rockchip_dp_pre_init()  argument
88 	reset_control_assert(dp->rst);  in rockchip_dp_pre_init()
90 	reset_control_deassert(dp->rst);  in rockchip_dp_pre_init()
97 	struct rockchip_dp_device *dp = pdata_encoder_to_dp(plat_data);  in rockchip_dp_poweron_start()  local
100 	ret = clk_prepare_enable(dp->pclk);  in rockchip_dp_poweron_start()
102 		DRM_DEV_ERROR(dp->dev, "failed to enable pclk %d\n", ret);  in rockchip_dp_poweron_start()
106 	ret = rockchip_dp_pre_init(dp);  in rockchip_dp_poweron_start()
108 		DRM_DEV_ERROR(dp->dev, "failed to dp pre init %d\n", ret);  in rockchip_dp_poweron_start()
109 		clk_disable_unprepare(dp->pclk);  in rockchip_dp_poweron_start()
118 	struct rockchip_dp_device *dp = pdata_encoder_to_dp(plat_data);  in rockchip_dp_powerdown()  local
120 	clk_disable_unprepare(dp->pclk);  in rockchip_dp_powerdown()
179 	struct rockchip_dp_device *dp = encoder_to_dp(encoder);  in rockchip_dp_drm_encoder_enable()  local
194 	ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);  in rockchip_dp_drm_encoder_enable()
199 		val = dp->data->lcdsel_lit;  in rockchip_dp_drm_encoder_enable()
201 		val = dp->data->lcdsel_big;  in rockchip_dp_drm_encoder_enable()
203 	DRM_DEV_DEBUG(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG");  in rockchip_dp_drm_encoder_enable()
205 	ret = clk_prepare_enable(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
207 		DRM_DEV_ERROR(dp->dev, "failed to enable grfclk %d\n", ret);  in rockchip_dp_drm_encoder_enable()
211 	ret = regmap_write(dp->grf, dp->data->lcdsel_grf_reg, val);  in rockchip_dp_drm_encoder_enable()
213 		DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret);  in rockchip_dp_drm_encoder_enable()
215 	clk_disable_unprepare(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
221 	struct rockchip_dp_device *dp = encoder_to_dp(encoder);  in rockchip_dp_drm_encoder_disable()  local
238 		DRM_DEV_ERROR(dp->dev, "line flag irq timed out\n");  in rockchip_dp_drm_encoder_disable()
272 static int rockchip_dp_of_probe(struct rockchip_dp_device *dp)  in rockchip_dp_of_probe()  argument
274 	struct device *dev = dp->dev;  in rockchip_dp_of_probe()
277 	dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");  in rockchip_dp_of_probe()
278 	if (IS_ERR(dp->grf)) {  in rockchip_dp_of_probe()
280 		return PTR_ERR(dp->grf);  in rockchip_dp_of_probe()
283 	dp->grfclk = devm_clk_get(dev, "grf");  in rockchip_dp_of_probe()
284 	if (PTR_ERR(dp->grfclk) == -ENOENT) {  in rockchip_dp_of_probe()
285 		dp->grfclk = NULL;  in rockchip_dp_of_probe()
286 	} else if (PTR_ERR(dp->grfclk) == -EPROBE_DEFER) {  in rockchip_dp_of_probe()
288 	} else if (IS_ERR(dp->grfclk)) {  in rockchip_dp_of_probe()
290 		return PTR_ERR(dp->grfclk);  in rockchip_dp_of_probe()
293 	dp->pclk = devm_clk_get(dev, "pclk");  in rockchip_dp_of_probe()
294 	if (IS_ERR(dp->pclk)) {  in rockchip_dp_of_probe()
296 		return PTR_ERR(dp->pclk);  in rockchip_dp_of_probe()
299 	dp->rst = devm_reset_control_get(dev, "dp");  in rockchip_dp_of_probe()
300 	if (IS_ERR(dp->rst)) {  in rockchip_dp_of_probe()
301 		DRM_DEV_ERROR(dev, "failed to get dp reset control\n");  in rockchip_dp_of_probe()
302 		return PTR_ERR(dp->rst);  in rockchip_dp_of_probe()
308 static int rockchip_dp_drm_create_encoder(struct rockchip_dp_device *dp)  in rockchip_dp_drm_create_encoder()  argument
310 	struct drm_encoder *encoder = &dp->encoder.encoder;  in rockchip_dp_drm_create_encoder()
311 	struct drm_device *drm_dev = dp->drm_dev;  in rockchip_dp_drm_create_encoder()
312 	struct device *dev = dp->dev;  in rockchip_dp_drm_create_encoder()
334 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_bind()  local
338 	dp->drm_dev = drm_dev;  in rockchip_dp_bind()
340 	ret = rockchip_dp_drm_create_encoder(dp);  in rockchip_dp_bind()
346 	dp->plat_data.encoder = &dp->encoder.encoder;  in rockchip_dp_bind()
348 	ret = analogix_dp_bind(dp->adp, drm_dev);  in rockchip_dp_bind()
354 	dp->encoder.encoder.funcs->destroy(&dp->encoder.encoder);  in rockchip_dp_bind()
361 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_unbind()  local
363 	analogix_dp_unbind(dp->adp);  in rockchip_dp_unbind()
364 	dp->encoder.encoder.funcs->destroy(&dp->encoder.encoder);  in rockchip_dp_unbind()
377 	struct rockchip_dp_device *dp;  in rockchip_dp_probe()  local
388 	dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);  in rockchip_dp_probe()
389 	if (!dp)  in rockchip_dp_probe()
392 	dp->dev = dev;  in rockchip_dp_probe()
393 	dp->adp = ERR_PTR(-ENODEV);  in rockchip_dp_probe()
394 	dp->data = dp_data;  in rockchip_dp_probe()
395 	dp->plat_data.panel = panel;  in rockchip_dp_probe()
396 	dp->plat_data.dev_type = dp->data->chip_type;  in rockchip_dp_probe()
397 	dp->plat_data.power_on_start = rockchip_dp_poweron_start;  in rockchip_dp_probe()
398 	dp->plat_data.power_off = rockchip_dp_powerdown;  in rockchip_dp_probe()
399 	dp->plat_data.get_modes = rockchip_dp_get_modes;  in rockchip_dp_probe()
401 	ret = rockchip_dp_of_probe(dp);  in rockchip_dp_probe()
405 	platform_set_drvdata(pdev, dp);  in rockchip_dp_probe()
407 	dp->adp = analogix_dp_probe(dev, &dp->plat_data);  in rockchip_dp_probe()
408 	if (IS_ERR(dp->adp))  in rockchip_dp_probe()
409 		return PTR_ERR(dp->adp);  in rockchip_dp_probe()
418 	analogix_dp_remove(dp->adp);  in rockchip_dp_probe()
424 	struct rockchip_dp_device *dp = platform_get_drvdata(pdev);  in rockchip_dp_remove()  local
427 	analogix_dp_remove(dp->adp);  in rockchip_dp_remove()
435 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_suspend()  local
437 	if (IS_ERR(dp->adp))  in rockchip_dp_suspend()
440 	return analogix_dp_suspend(dp->adp);  in rockchip_dp_suspend()
445 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_resume()  local
447 	if (IS_ERR(dp->adp))  in rockchip_dp_resume()
450 	return analogix_dp_resume(dp->adp);  in rockchip_dp_resume()
476 	{.compatible = "rockchip,rk3288-dp", .data = &rk3288_dp },
486 		   .name = "rockchip-dp",