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/*
* Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
* Copyright (c) 2015 Google, Inc
* Copyright 2014 Rockchip Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <display.h>
#include <dm.h>
#include <regmap.h>
#include <video.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include "rk_vop.h"
DECLARE_GLOBAL_DATA_PTR;
static void rk3399_set_pin_polarity(struct udevice *dev,
enum vop_modes mode, u32 polarity)
{
struct rk_vop_priv *priv = dev_get_priv(dev);
struct rk3288_vop *regs = priv->regs;
/*
* The RK3399 VOPs (v3.5 and v3.6) require a per-mode setting of
* the polarity configuration (in ctrl1).
*/
switch (mode) {
case VOP_MODE_HDMI:
clrsetbits_le32(®s->dsp_ctrl1,
M_RK3399_DSP_HDMI_POL,
V_RK3399_DSP_HDMI_POL(polarity));
break;
case VOP_MODE_EDP:
clrsetbits_le32(®s->dsp_ctrl1,
M_RK3399_DSP_EDP_POL,
V_RK3399_DSP_EDP_POL(polarity));
break;
case VOP_MODE_MIPI:
clrsetbits_le32(®s->dsp_ctrl1,
M_RK3399_DSP_MIPI_POL,
V_RK3399_DSP_MIPI_POL(polarity));
break;
case VOP_MODE_LVDS:
/* The RK3399 has neither parallel RGB nor LVDS output. */
default:
debug("%s: unsupported output mode %x\n", __func__, mode);
}
}
/*
* Try some common regulators. We should really get these from the
* device tree somehow.
*/
static const char * const rk3399_regulator_names[] = {
"vcc33_lcd"
};
static int rk3399_vop_probe(struct udevice *dev)
{
/* Before relocation we don't need to do anything */
if (!(gd->flags & GD_FLG_RELOC))
return 0;
/* Probe regulators required for the RK3399 VOP */
rk_vop_probe_regulators(dev, rk3399_regulator_names,
ARRAY_SIZE(rk3399_regulator_names));
return rk_vop_probe(dev);
}
struct rkvop_driverdata rk3399_lit_driverdata = {
.set_pin_polarity = rk3399_set_pin_polarity,
};
struct rkvop_driverdata rk3399_big_driverdata = {
.features = VOP_FEATURE_OUTPUT_10BIT,
.set_pin_polarity = rk3399_set_pin_polarity,
};
static const struct udevice_id rk3399_vop_ids[] = {
{ .compatible = "rockchip,rk3399-vop-big",
.data = (ulong)&rk3399_big_driverdata },
{ .compatible = "rockchip,rk3399-vop-lit",
.data = (ulong)&rk3399_lit_driverdata },
{ }
};
static const struct video_ops rk3399_vop_ops = {
};
U_BOOT_DRIVER(rk3399_vop) = {
.name = "rk3399_vop",
.id = UCLASS_VIDEO,
.of_match = rk3399_vop_ids,
.ops = &rk3399_vop_ops,
.bind = rk_vop_bind,
.probe = rk3399_vop_probe,
.priv_auto_alloc_size = sizeof(struct rk_vop_priv),
};
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