1 // SPDX-License-Identifier: GPL-2.0-or-later
6  * Author: Andy Yan <andy.yan@rock-chips.com>
7  *         Yakir Yang <ykk@rock-chips.com>
8  *         Jeff Chen <jeff.chen@rock-chips.com>
44  * struct rockchip_dp_chip_data - splite the grf setting of kind of chips
45  * @lcdsel_grf_reg: grf register offset of lcdc select
65 	struct regmap            *grf;  member
88 	reset_control_assert(dp->rst);  in rockchip_dp_pre_init()
90 	reset_control_deassert(dp->rst);  in rockchip_dp_pre_init()
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()
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()
120 	clk_disable_unprepare(dp->pclk);  in rockchip_dp_powerdown()
128 	struct drm_display_info *di = &connector->display_info;  in rockchip_dp_get_modes()
132 	if ((di->color_formats & mask)) {  in rockchip_dp_get_modes()
134 		di->color_formats &= ~mask;  in rockchip_dp_get_modes()
135 		di->color_formats |= DRM_COLOR_FORMAT_RGB444;  in rockchip_dp_get_modes()
136 		di->bpc = 8;  in rockchip_dp_get_modes()
173 	return conn_state->crtc;  in rockchip_dp_drm_get_new_crtc()
191 	if (old_crtc_state && old_crtc_state->self_refresh_active)  in rockchip_dp_drm_encoder_enable()
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()
232 	/* If we're not entering self-refresh, no need to wait for vact */  in rockchip_dp_drm_encoder_disable()
233 	if (!new_crtc_state || !new_crtc_state->self_refresh_active)  in rockchip_dp_drm_encoder_disable()
238 		DRM_DEV_ERROR(dp->dev, "line flag irq timed out\n");  in rockchip_dp_drm_encoder_disable()
247 	struct drm_display_info *di = &conn_state->connector->display_info;  in rockchip_dp_drm_encoder_atomic_check()
257 	s->output_mode = ROCKCHIP_OUT_MODE_AAAA;  in rockchip_dp_drm_encoder_atomic_check()
258 	s->output_type = DRM_MODE_CONNECTOR_eDP;  in rockchip_dp_drm_encoder_atomic_check()
259 	s->output_bpc = di->bpc;  in rockchip_dp_drm_encoder_atomic_check()
274 	struct device *dev = dp->dev;  in rockchip_dp_of_probe()
275 	struct device_node *np = dev->of_node;  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()
279 		DRM_DEV_ERROR(dev, "failed to get rockchip,grf property\n");  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()
287 		return -EPROBE_DEFER;  in rockchip_dp_of_probe()
288 	} else if (IS_ERR(dp->grfclk)) {  in rockchip_dp_of_probe()
289 		DRM_DEV_ERROR(dev, "failed to get grf clock\n");  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()
302 		return PTR_ERR(dp->rst);  in rockchip_dp_of_probe()
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()
315 	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev,  in rockchip_dp_drm_create_encoder()
316 							     dev->of_node);  in rockchip_dp_drm_create_encoder()
317 	DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);  in rockchip_dp_drm_create_encoder()
338 	dp->drm_dev = drm_dev;  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()
363 	analogix_dp_unbind(dp->adp);  in rockchip_dp_unbind()
364 	dp->encoder.encoder.funcs->destroy(&dp->encoder.encoder);  in rockchip_dp_unbind()
374 	struct device *dev = &pdev->dev;  in rockchip_dp_probe()
382 		return -ENODEV;  in rockchip_dp_probe()
384 	ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, NULL);  in rockchip_dp_probe()
390 		return -ENOMEM;  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()
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()
426 	component_del(&pdev->dev, &rockchip_dp_component_ops);  in rockchip_dp_remove()
427 	analogix_dp_remove(dp->adp);  in rockchip_dp_remove()
437 	if (IS_ERR(dp->adp))  in rockchip_dp_suspend()
440 	return analogix_dp_suspend(dp->adp);  in rockchip_dp_suspend()
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 },
477 	{.compatible = "rockchip,rk3399-edp", .data = &rk3399_edp },
486 		   .name = "rockchip-dp",