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>
46  * struct rockchip_dp_chip_data - splite the grf setting of kind of chips
48  * @lcdsel_big: reg value of selecting vop big for eDP
49  * @lcdsel_lit: reg value of selecting vop little for eDP
78 	reset_control_assert(dp->rst);  in rockchip_dp_pre_init()
80 	reset_control_deassert(dp->rst);  in rockchip_dp_pre_init()
90 	ret = clk_prepare_enable(dp->pclk);  in rockchip_dp_poweron_start()
92 		DRM_DEV_ERROR(dp->dev, "failed to enable pclk %d\n", ret);  in rockchip_dp_poweron_start()
98 		DRM_DEV_ERROR(dp->dev, "failed to dp pre init %d\n", ret);  in rockchip_dp_poweron_start()
99 		clk_disable_unprepare(dp->pclk);  in rockchip_dp_poweron_start()
110 	clk_disable_unprepare(dp->pclk);  in rockchip_dp_powerdown()
118 	struct drm_display_info *di = &connector->display_info;  in rockchip_dp_get_modes()
119 	/* VOP couldn't output YUV video format for eDP rightly */  in rockchip_dp_get_modes()
122 	if ((di->color_formats & mask)) {  in rockchip_dp_get_modes()
124 		di->color_formats &= ~mask;  in rockchip_dp_get_modes()
125 		di->color_formats |= DRM_COLOR_FORMAT_RGB444;  in rockchip_dp_get_modes()
126 		di->bpc = 8;  in rockchip_dp_get_modes()
163 	return conn_state->crtc;  in rockchip_dp_drm_get_new_crtc()
181 	if (old_crtc_state && old_crtc_state->self_refresh_active)  in rockchip_dp_drm_encoder_enable()
184 	ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);  in rockchip_dp_drm_encoder_enable()
189 		val = dp->data->lcdsel_lit;  in rockchip_dp_drm_encoder_enable()
191 		val = dp->data->lcdsel_big;  in rockchip_dp_drm_encoder_enable()
193 	DRM_DEV_DEBUG(dp->dev, "vop %s output to dp\n", (ret) ? "LIT" : "BIG");  in rockchip_dp_drm_encoder_enable()
195 	ret = clk_prepare_enable(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
197 		DRM_DEV_ERROR(dp->dev, "failed to enable grfclk %d\n", ret);  in rockchip_dp_drm_encoder_enable()
201 	ret = regmap_write(dp->grf, dp->data->lcdsel_grf_reg, val);  in rockchip_dp_drm_encoder_enable()
203 		DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret);  in rockchip_dp_drm_encoder_enable()
205 	clk_disable_unprepare(dp->grfclk);  in rockchip_dp_drm_encoder_enable()
222 	/* If we're not entering self-refresh, no need to wait for vact */  in rockchip_dp_drm_encoder_disable()
223 	if (!new_crtc_state || !new_crtc_state->self_refresh_active)  in rockchip_dp_drm_encoder_disable()
228 		DRM_DEV_ERROR(dp->dev, "line flag irq timed out\n");  in rockchip_dp_drm_encoder_disable()
237 	struct drm_display_info *di = &conn_state->connector->display_info;  in rockchip_dp_drm_encoder_atomic_check()
240 	 * The hardware IC designed that VOP must output the RGB10 video  in rockchip_dp_drm_encoder_atomic_check()
242 	 * then eDP controller should cut down the video data, not via VOP  in rockchip_dp_drm_encoder_atomic_check()
243 	 * controller, that's why we need to hardcode the VOP output mode  in rockchip_dp_drm_encoder_atomic_check()
247 	s->output_mode = ROCKCHIP_OUT_MODE_AAAA;  in rockchip_dp_drm_encoder_atomic_check()
248 	s->output_type = DRM_MODE_CONNECTOR_eDP;  in rockchip_dp_drm_encoder_atomic_check()
249 	s->output_bpc = di->bpc;  in rockchip_dp_drm_encoder_atomic_check()
264 	struct device *dev = dp->dev;  in rockchip_dp_of_probe()
265 	struct device_node *np = dev->of_node;  in rockchip_dp_of_probe()
267 	dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");  in rockchip_dp_of_probe()
268 	if (IS_ERR(dp->grf)) {  in rockchip_dp_of_probe()
270 		return PTR_ERR(dp->grf);  in rockchip_dp_of_probe()
273 	dp->grfclk = devm_clk_get(dev, "grf");  in rockchip_dp_of_probe()
274 	if (PTR_ERR(dp->grfclk) == -ENOENT) {  in rockchip_dp_of_probe()
275 		dp->grfclk = NULL;  in rockchip_dp_of_probe()
276 	} else if (PTR_ERR(dp->grfclk) == -EPROBE_DEFER) {  in rockchip_dp_of_probe()
277 		return -EPROBE_DEFER;  in rockchip_dp_of_probe()
278 	} else if (IS_ERR(dp->grfclk)) {  in rockchip_dp_of_probe()
280 		return PTR_ERR(dp->grfclk);  in rockchip_dp_of_probe()
283 	dp->pclk = devm_clk_get(dev, "pclk");  in rockchip_dp_of_probe()
284 	if (IS_ERR(dp->pclk)) {  in rockchip_dp_of_probe()
286 		return PTR_ERR(dp->pclk);  in rockchip_dp_of_probe()
289 	dp->rst = devm_reset_control_get(dev, "dp");  in rockchip_dp_of_probe()
290 	if (IS_ERR(dp->rst)) {  in rockchip_dp_of_probe()
292 		return PTR_ERR(dp->rst);  in rockchip_dp_of_probe()
300 	struct drm_encoder *encoder = &dp->encoder;  in rockchip_dp_drm_create_encoder()
301 	struct drm_device *drm_dev = dp->drm_dev;  in rockchip_dp_drm_create_encoder()
302 	struct device *dev = dp->dev;  in rockchip_dp_drm_create_encoder()
305 	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev,  in rockchip_dp_drm_create_encoder()
306 							     dev->of_node);  in rockchip_dp_drm_create_encoder()
307 	DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);  in rockchip_dp_drm_create_encoder()
328 	dp->drm_dev = drm_dev;  in rockchip_dp_bind()
336 	dp->plat_data.encoder = &dp->encoder;  in rockchip_dp_bind()
338 	ret = analogix_dp_bind(dp->adp, drm_dev);  in rockchip_dp_bind()
344 	dp->encoder.funcs->destroy(&dp->encoder);  in rockchip_dp_bind()
353 	analogix_dp_unbind(dp->adp);  in rockchip_dp_unbind()
354 	dp->encoder.funcs->destroy(&dp->encoder);  in rockchip_dp_unbind()
364 	struct device *dev = &pdev->dev;  in rockchip_dp_probe()
372 		return -ENODEV;  in rockchip_dp_probe()
374 	ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, NULL);  in rockchip_dp_probe()
380 		return -ENOMEM;  in rockchip_dp_probe()
382 	dp->dev = dev;  in rockchip_dp_probe()
383 	dp->adp = ERR_PTR(-ENODEV);  in rockchip_dp_probe()
384 	dp->data = dp_data;  in rockchip_dp_probe()
385 	dp->plat_data.panel = panel;  in rockchip_dp_probe()
386 	dp->plat_data.dev_type = dp->data->chip_type;  in rockchip_dp_probe()
387 	dp->plat_data.power_on_start = rockchip_dp_poweron_start;  in rockchip_dp_probe()
388 	dp->plat_data.power_off = rockchip_dp_powerdown;  in rockchip_dp_probe()
389 	dp->plat_data.get_modes = rockchip_dp_get_modes;  in rockchip_dp_probe()
397 	dp->adp = analogix_dp_probe(dev, &dp->plat_data);  in rockchip_dp_probe()
398 	if (IS_ERR(dp->adp))  in rockchip_dp_probe()
399 		return PTR_ERR(dp->adp);  in rockchip_dp_probe()
408 	component_del(&pdev->dev, &rockchip_dp_component_ops);  in rockchip_dp_remove()
409 	analogix_dp_remove(dp->adp);  in rockchip_dp_remove()
419 	if (IS_ERR(dp->adp))  in rockchip_dp_suspend()
422 	return analogix_dp_suspend(dp->adp);  in rockchip_dp_suspend()
429 	if (IS_ERR(dp->adp))  in rockchip_dp_resume()
432 	return analogix_dp_resume(dp->adp);  in rockchip_dp_resume()
458 	{.compatible = "rockchip,rk3288-dp", .data = &rk3288_dp },
459 	{.compatible = "rockchip,rk3399-edp", .data = &rk3399_edp },
468 		   .name = "rockchip-dp",