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      1 // SPDX-License-Identifier: GPL-2.0+
      2 /*
      3  * Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
      4  */
      5 
      6 #include <common.h>
      7 #include <clk.h>
      8 #include <display.h>
      9 #include <dm.h>
     10 #include <dw_hdmi.h>
     11 #include <edid.h>
     12 #include <regmap.h>
     13 #include <syscon.h>
     14 #include <asm/gpio.h>
     15 #include <asm/io.h>
     16 #include <asm/arch/clock.h>
     17 #include <asm/arch/hardware.h>
     18 #include <asm/arch/grf_rk3399.h>
     19 #include <power/regulator.h>
     20 #include "rk_hdmi.h"
     21 
     22 static int rk3399_hdmi_enable(struct udevice *dev, int panel_bpp,
     23 			      const struct display_timing *edid)
     24 {
     25 	struct rk_hdmi_priv *priv = dev_get_priv(dev);
     26 	struct display_plat *uc_plat = dev_get_uclass_platdata(dev);
     27 	int vop_id = uc_plat->source_id;
     28 	struct rk3399_grf_regs *grf = priv->grf;
     29 
     30 	/* select the hdmi encoder input data from our source_id */
     31 	rk_clrsetreg(&grf->soc_con20, GRF_RK3399_HDMI_VOP_SEL_MASK,
     32 		     (vop_id == 1) ? GRF_RK3399_HDMI_VOP_SEL_L : 0);
     33 
     34 	return dw_hdmi_enable(&priv->hdmi, edid);
     35 }
     36 
     37 static int rk3399_hdmi_ofdata_to_platdata(struct udevice *dev)
     38 {
     39 	struct rk_hdmi_priv *priv = dev_get_priv(dev);
     40 	struct dw_hdmi *hdmi = &priv->hdmi;
     41 
     42 	hdmi->i2c_clk_high = 0x7a;
     43 	hdmi->i2c_clk_low = 0x8d;
     44 
     45 	return rk_hdmi_ofdata_to_platdata(dev);
     46 }
     47 
     48 static const char * const rk3399_regulator_names[] = {
     49 	"vcc1v8_hdmi",
     50 	"vcc0v9_hdmi"
     51 };
     52 
     53 static int rk3399_hdmi_probe(struct udevice *dev)
     54 {
     55 	/* Enable regulators required for HDMI */
     56 	rk_hdmi_probe_regulators(dev, rk3399_regulator_names,
     57 				 ARRAY_SIZE(rk3399_regulator_names));
     58 
     59 	return rk_hdmi_probe(dev);
     60 }
     61 
     62 static const struct dm_display_ops rk3399_hdmi_ops = {
     63 	.read_edid = rk_hdmi_read_edid,
     64 	.enable = rk3399_hdmi_enable,
     65 };
     66 
     67 static const struct udevice_id rk3399_hdmi_ids[] = {
     68 	{ .compatible = "rockchip,rk3399-dw-hdmi" },
     69 	{ }
     70 };
     71 
     72 U_BOOT_DRIVER(rk3399_hdmi_rockchip) = {
     73 	.name = "rk3399_hdmi_rockchip",
     74 	.id = UCLASS_DISPLAY,
     75 	.of_match = rk3399_hdmi_ids,
     76 	.ops = &rk3399_hdmi_ops,
     77 	.ofdata_to_platdata = rk3399_hdmi_ofdata_to_platdata,
     78 	.probe = rk3399_hdmi_probe,
     79 	.priv_auto_alloc_size = sizeof(struct rk_hdmi_priv),
     80 };
     81