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>
23 #include "imx-drm.h"
28 	struct dw_hdmi *hdmi;  member
101 static int dw_hdmi_imx_parse_dt(struct imx_hdmi *hdmi)  in dw_hdmi_imx_parse_dt()  argument
103 	struct device_node *np = hdmi->dev->of_node;  in dw_hdmi_imx_parse_dt()
105 	hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "gpr");  in dw_hdmi_imx_parse_dt()
106 	if (IS_ERR(hdmi->regmap)) {  in dw_hdmi_imx_parse_dt()
107 		dev_err(hdmi->dev, "Unable to get gpr\n");  in dw_hdmi_imx_parse_dt()
108 		return PTR_ERR(hdmi->regmap);  in dw_hdmi_imx_parse_dt()
116 	struct imx_hdmi *hdmi = enc_to_imx_hdmi(encoder);  in dw_hdmi_imx_encoder_enable()  local
117 	int mux = drm_of_encoder_active_port_id(hdmi->dev->of_node, encoder);  in dw_hdmi_imx_encoder_enable()
119 	regmap_update_bits(hdmi->regmap, IOMUXC_GPR3,  in dw_hdmi_imx_encoder_enable()
130 	imx_crtc_state->bus_format = MEDIA_BUS_FMT_RGB888_1X24;  in dw_hdmi_imx_atomic_check()
131 	imx_crtc_state->di_hsync_pin = 2;  in dw_hdmi_imx_atomic_check()
132 	imx_crtc_state->di_vsync_pin = 3;  in dw_hdmi_imx_atomic_check()
143 imx6q_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,  in imx6q_hdmi_mode_valid()  argument
147 	if (mode->clock < 13500)  in imx6q_hdmi_mode_valid()
150 	if (mode->clock > 216000)  in imx6q_hdmi_mode_valid()
157 imx6dl_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,  in imx6dl_hdmi_mode_valid()  argument
161 	if (mode->clock < 13500)  in imx6dl_hdmi_mode_valid()
164 	if (mode->clock > 216000)  in imx6dl_hdmi_mode_valid()
185 	{ .compatible = "fsl,imx6q-hdmi",
188 	  .compatible = "fsl,imx6dl-hdmi",
203 	struct imx_hdmi *hdmi;  in dw_hdmi_imx_bind()  local
206 	if (!pdev->dev.of_node)  in dw_hdmi_imx_bind()
207 		return -ENODEV;  in dw_hdmi_imx_bind()
209 	hdmi = dev_get_drvdata(dev);  in dw_hdmi_imx_bind()
210 	memset(hdmi, 0, sizeof(*hdmi));  in dw_hdmi_imx_bind()
212 	match = of_match_node(dw_hdmi_imx_dt_ids, pdev->dev.of_node);  in dw_hdmi_imx_bind()
213 	plat_data = match->data;  in dw_hdmi_imx_bind()
214 	hdmi->dev = &pdev->dev;  in dw_hdmi_imx_bind()
215 	encoder = &hdmi->encoder;  in dw_hdmi_imx_bind()
217 	ret = imx_drm_encoder_parse_of(drm, encoder, dev->of_node);  in dw_hdmi_imx_bind()
221 	ret = dw_hdmi_imx_parse_dt(hdmi);  in dw_hdmi_imx_bind()
228 	hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data);  in dw_hdmi_imx_bind()
234 	if (IS_ERR(hdmi->hdmi)) {  in dw_hdmi_imx_bind()
235 		ret = PTR_ERR(hdmi->hdmi);  in dw_hdmi_imx_bind()
245 	struct imx_hdmi *hdmi = dev_get_drvdata(dev);  in dw_hdmi_imx_unbind()  local
247 	dw_hdmi_unbind(hdmi->hdmi);  in dw_hdmi_imx_unbind()
257 	struct imx_hdmi *hdmi;  in dw_hdmi_imx_probe()  local
259 	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);  in dw_hdmi_imx_probe()
260 	if (!hdmi)  in dw_hdmi_imx_probe()
261 		return -ENOMEM;  in dw_hdmi_imx_probe()
263 	platform_set_drvdata(pdev, hdmi);  in dw_hdmi_imx_probe()
265 	return component_add(&pdev->dev, &dw_hdmi_imx_ops);  in dw_hdmi_imx_probe()
270 	component_del(&pdev->dev, &dw_hdmi_imx_ops);  in dw_hdmi_imx_remove()
279 		.name = "dwhdmi-imx",
286 MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
287 MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
288 MODULE_DESCRIPTION("IMX6 Specific DW-HDMI Driver Extension");
290 MODULE_ALIAS("platform:dwhdmi-imx");