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