1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2011-2013 Freescale Semiconductor, Inc.
4  * derived from imx-hdmi.c(renamed to bridge/dw_hdmi.c now)
9 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
14 #include <video/imx-ipu-v3.h>
16 #include <drm/bridge/dw_hdmi.h>
25 #include "imx-drm.h"
31 	struct imx_hdmi *hdmi;  member
36 	struct drm_bridge *bridge;  member
37 	struct dw_hdmi *hdmi;  member
43 	return container_of(e, struct imx_hdmi_encoder, encoder)->hdmi;  in enc_to_imx_hdmi()
112 	struct imx_hdmi *hdmi = enc_to_imx_hdmi(encoder);  in dw_hdmi_imx_encoder_enable()  local
113 	int mux = drm_of_encoder_active_port_id(hdmi->dev->of_node, encoder);  in dw_hdmi_imx_encoder_enable()
115 	regmap_update_bits(hdmi->regmap, IOMUXC_GPR3,  in dw_hdmi_imx_encoder_enable()
126 	imx_crtc_state->bus_format = MEDIA_BUS_FMT_RGB888_1X24;  in dw_hdmi_imx_atomic_check()
127 	imx_crtc_state->di_hsync_pin = 2;  in dw_hdmi_imx_atomic_check()
128 	imx_crtc_state->di_vsync_pin = 3;  in dw_hdmi_imx_atomic_check()
139 imx6q_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,  in imx6q_hdmi_mode_valid()  argument
143 	if (mode->clock < 13500)  in imx6q_hdmi_mode_valid()
146 	if (mode->clock > 216000)  in imx6q_hdmi_mode_valid()
153 imx6dl_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,  in imx6dl_hdmi_mode_valid()  argument
157 	if (mode->clock < 13500)  in imx6dl_hdmi_mode_valid()
160 	if (mode->clock > 216000)  in imx6dl_hdmi_mode_valid()
181 	{ .compatible = "fsl,imx6q-hdmi",
184 	  .compatible = "fsl,imx6dl-hdmi",
204 	hdmi_encoder->hdmi = dev_get_drvdata(dev);  in dw_hdmi_imx_bind()
205 	encoder = &hdmi_encoder->encoder;  in dw_hdmi_imx_bind()
207 	ret = imx_drm_encoder_parse_of(drm, encoder, dev->of_node);  in dw_hdmi_imx_bind()
213 	return drm_bridge_attach(encoder, hdmi_encoder->hdmi->bridge, NULL, 0);  in dw_hdmi_imx_bind()
222 	struct device_node *np = pdev->dev.of_node;  in dw_hdmi_imx_probe()
224 	struct imx_hdmi *hdmi;  in dw_hdmi_imx_probe()  local
227 	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);  in dw_hdmi_imx_probe()
228 	if (!hdmi)  in dw_hdmi_imx_probe()
229 		return -ENOMEM;  in dw_hdmi_imx_probe()
231 	platform_set_drvdata(pdev, hdmi);  in dw_hdmi_imx_probe()
232 	hdmi->dev = &pdev->dev;  in dw_hdmi_imx_probe()
234 	hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "gpr");  in dw_hdmi_imx_probe()
235 	if (IS_ERR(hdmi->regmap)) {  in dw_hdmi_imx_probe()
236 		dev_err(hdmi->dev, "Unable to get gpr\n");  in dw_hdmi_imx_probe()
237 		return PTR_ERR(hdmi->regmap);  in dw_hdmi_imx_probe()
240 	hdmi->hdmi = dw_hdmi_probe(pdev, match->data);  in dw_hdmi_imx_probe()
241 	if (IS_ERR(hdmi->hdmi))  in dw_hdmi_imx_probe()
242 		return PTR_ERR(hdmi->hdmi);  in dw_hdmi_imx_probe()
244 	hdmi->bridge = of_drm_find_bridge(np);  in dw_hdmi_imx_probe()
245 	if (!hdmi->bridge) {  in dw_hdmi_imx_probe()
246 		dev_err(hdmi->dev, "Unable to find bridge\n");  in dw_hdmi_imx_probe()
247 		dw_hdmi_remove(hdmi->hdmi);  in dw_hdmi_imx_probe()
248 		return -ENODEV;  in dw_hdmi_imx_probe()
251 	ret = component_add(&pdev->dev, &dw_hdmi_imx_ops);  in dw_hdmi_imx_probe()
253 		dw_hdmi_remove(hdmi->hdmi);  in dw_hdmi_imx_probe()
260 	struct imx_hdmi *hdmi = platform_get_drvdata(pdev);  in dw_hdmi_imx_remove()  local
262 	component_del(&pdev->dev, &dw_hdmi_imx_ops);  in dw_hdmi_imx_remove()
263 	dw_hdmi_remove(hdmi->hdmi);  in dw_hdmi_imx_remove()
270 		.name = "dwhdmi-imx",
277 MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
278 MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
279 MODULE_DESCRIPTION("IMX6 Specific DW-HDMI Driver Extension");
281 MODULE_ALIAS("platform:dwhdmi-imx");