2  * Rockchip SoC DP (Display Port) interface driver.
82 	struct rockchip_dp_device *dp = to_dp(encoder);  in analogix_dp_psr_set()  local
85 	if (!analogix_dp_psr_enabled(dp->adp))  in analogix_dp_psr_set()
88 	DRM_DEV_DEBUG(dp->dev, "%s PSR...\n", enabled ? "Entry" : "Exit");  in analogix_dp_psr_set()
90 	ret = rockchip_drm_wait_vact_end(dp->encoder.crtc,  in analogix_dp_psr_set()
93 		DRM_DEV_ERROR(dp->dev, "line flag interrupt did not arrive\n");  in analogix_dp_psr_set()
98 		return analogix_dp_enable_psr(dp->adp);  in analogix_dp_psr_set()
100 		return analogix_dp_disable_psr(dp->adp);  in analogix_dp_psr_set()
103 static int rockchip_dp_pre_init(struct rockchip_dp_device *dp)  in rockchip_dp_pre_init()  argument
105 	reset_control_assert(dp->rst);  in rockchip_dp_pre_init()
107 	reset_control_deassert(dp->rst);  in rockchip_dp_pre_init()
114 	struct rockchip_dp_device *dp = to_dp(plat_data);  in rockchip_dp_poweron_start()  local
117 	ret = clk_prepare_enable(dp->pclk);  in rockchip_dp_poweron_start()
119 		DRM_DEV_ERROR(dp->dev, "failed to enable pclk %d\n", ret);  in rockchip_dp_poweron_start()
123 	ret = rockchip_dp_pre_init(dp);  in rockchip_dp_poweron_start()
125 		DRM_DEV_ERROR(dp->dev, "failed to dp pre init %d\n", ret);  in rockchip_dp_poweron_start()
126 		clk_disable_unprepare(dp->pclk);  in rockchip_dp_poweron_start()
135 	struct rockchip_dp_device *dp = to_dp(plat_data);  in rockchip_dp_poweron_end()  local
137 	return rockchip_drm_psr_inhibit_put(&dp->encoder);  in rockchip_dp_poweron_end()
142 	struct rockchip_dp_device *dp = to_dp(plat_data);  in rockchip_dp_powerdown()  local
145 	ret = rockchip_drm_psr_inhibit_get(&dp->encoder);  in rockchip_dp_powerdown()
149 	clk_disable_unprepare(dp->pclk);  in rockchip_dp_powerdown()
189 	struct rockchip_dp_device *dp = to_dp(encoder);  in rockchip_dp_drm_encoder_enable()  local
193 	ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);  in rockchip_dp_drm_encoder_enable()
198 		val = dp->data->lcdsel_lit;  in rockchip_dp_drm_encoder_enable()
200 		val = dp->data->lcdsel_big;  in rockchip_dp_drm_encoder_enable()
202 	DRM_DEV_DEBUG(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG");  in rockchip_dp_drm_encoder_enable()
204 	ret = clk_prepare_enable(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
206 		DRM_DEV_ERROR(dp->dev, "failed to enable grfclk %d\n", ret);  in rockchip_dp_drm_encoder_enable()
210 	ret = regmap_write(dp->grf, dp->data->lcdsel_grf_reg, val);  in rockchip_dp_drm_encoder_enable()
212 		DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret);  in rockchip_dp_drm_encoder_enable()
214 	clk_disable_unprepare(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
257 static int rockchip_dp_of_probe(struct rockchip_dp_device *dp)  in rockchip_dp_of_probe()  argument
259 	struct device *dev = dp->dev;  in rockchip_dp_of_probe()
262 	dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");  in rockchip_dp_of_probe()
263 	if (IS_ERR(dp->grf)) {  in rockchip_dp_of_probe()
265 		return PTR_ERR(dp->grf);  in rockchip_dp_of_probe()
268 	dp->grfclk = devm_clk_get(dev, "grf");  in rockchip_dp_of_probe()
269 	if (PTR_ERR(dp->grfclk) == -ENOENT) {  in rockchip_dp_of_probe()
270 		dp->grfclk = NULL;  in rockchip_dp_of_probe()
271 	} else if (PTR_ERR(dp->grfclk) == -EPROBE_DEFER) {  in rockchip_dp_of_probe()
273 	} else if (IS_ERR(dp->grfclk)) {  in rockchip_dp_of_probe()
275 		return PTR_ERR(dp->grfclk);  in rockchip_dp_of_probe()
278 	dp->pclk = devm_clk_get(dev, "pclk");  in rockchip_dp_of_probe()
279 	if (IS_ERR(dp->pclk)) {  in rockchip_dp_of_probe()
281 		return PTR_ERR(dp->pclk);  in rockchip_dp_of_probe()
284 	dp->rst = devm_reset_control_get(dev, "dp");  in rockchip_dp_of_probe()
285 	if (IS_ERR(dp->rst)) {  in rockchip_dp_of_probe()
286 		DRM_DEV_ERROR(dev, "failed to get dp reset control\n");  in rockchip_dp_of_probe()
287 		return PTR_ERR(dp->rst);  in rockchip_dp_of_probe()
293 static int rockchip_dp_drm_create_encoder(struct rockchip_dp_device *dp)  in rockchip_dp_drm_create_encoder()  argument
295 	struct drm_encoder *encoder = &dp->encoder;  in rockchip_dp_drm_create_encoder()
296 	struct drm_device *drm_dev = dp->drm_dev;  in rockchip_dp_drm_create_encoder()
297 	struct device *dev = dp->dev;  in rockchip_dp_drm_create_encoder()
319 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_bind()  local
328 	dp->data = dp_data;  in rockchip_dp_bind()
329 	dp->drm_dev = drm_dev;  in rockchip_dp_bind()
331 	ret = rockchip_dp_drm_create_encoder(dp);  in rockchip_dp_bind()
337 	dp->plat_data.encoder = &dp->encoder;  in rockchip_dp_bind()
339 	dp->plat_data.dev_type = dp->data->chip_type;  in rockchip_dp_bind()
340 	dp->plat_data.power_on_start = rockchip_dp_poweron_start;  in rockchip_dp_bind()
341 	dp->plat_data.power_on_end = rockchip_dp_poweron_end;  in rockchip_dp_bind()
342 	dp->plat_data.power_off = rockchip_dp_powerdown;  in rockchip_dp_bind()
343 	dp->plat_data.get_modes = rockchip_dp_get_modes;  in rockchip_dp_bind()
345 	ret = rockchip_drm_psr_register(&dp->encoder, analogix_dp_psr_set);  in rockchip_dp_bind()
349 	dp->adp = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);  in rockchip_dp_bind()
350 	if (IS_ERR(dp->adp)) {  in rockchip_dp_bind()
351 		ret = PTR_ERR(dp->adp);  in rockchip_dp_bind()
357 	rockchip_drm_psr_unregister(&dp->encoder);  in rockchip_dp_bind()
359 	dp->encoder.funcs->destroy(&dp->encoder);  in rockchip_dp_bind()
366 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_unbind()  local
368 	analogix_dp_unbind(dp->adp);  in rockchip_dp_unbind()
369 	rockchip_drm_psr_unregister(&dp->encoder);  in rockchip_dp_unbind()
370 	dp->encoder.funcs->destroy(&dp->encoder);  in rockchip_dp_unbind()
372 	dp->adp = ERR_PTR(-ENODEV);  in rockchip_dp_unbind()
384 	struct rockchip_dp_device *dp;  in rockchip_dp_probe()  local
391 	dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);  in rockchip_dp_probe()
392 	if (!dp)  in rockchip_dp_probe()
395 	dp->dev = dev;  in rockchip_dp_probe()
396 	dp->adp = ERR_PTR(-ENODEV);  in rockchip_dp_probe()
397 	dp->plat_data.panel = panel;  in rockchip_dp_probe()
399 	ret = rockchip_dp_of_probe(dp);  in rockchip_dp_probe()
403 	platform_set_drvdata(pdev, dp);  in rockchip_dp_probe()
418 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_suspend()  local
420 	if (IS_ERR(dp->adp))  in rockchip_dp_suspend()
423 	return analogix_dp_suspend(dp->adp);  in rockchip_dp_suspend()
428 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);  in rockchip_dp_resume()  local
430 	if (IS_ERR(dp->adp))  in rockchip_dp_resume()
433 	return analogix_dp_resume(dp->adp);  in rockchip_dp_resume()
459 	{.compatible = "rockchip,rk3288-dp", .data = &rk3288_dp },
469 		   .name = "rockchip-dp",