mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-10 05:06:16 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
116 lines
2.7 KiB
C
116 lines
2.7 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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*/
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#include <common.h>
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#include <clk.h>
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#include <display.h>
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#include <dm.h>
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#include <dw_hdmi.h>
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#include <edid.h>
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#include <regmap.h>
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#include <syscon.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/grf_rk3288.h>
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#include <power/regulator.h>
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#include "rk_hdmi.h"
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static int rk3288_hdmi_enable(struct udevice *dev, int panel_bpp,
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const struct display_timing *edid)
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{
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struct rk_hdmi_priv *priv = dev_get_priv(dev);
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struct display_plat *uc_plat = dev_get_uclass_platdata(dev);
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int vop_id = uc_plat->source_id;
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struct rk3288_grf *grf = priv->grf;
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/* hdmi source select hdmi controller */
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rk_setreg(&grf->soc_con6, 1 << 15);
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/* hdmi data from vop id */
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rk_clrsetreg(&grf->soc_con6, 1 << 4, (vop_id == 1) ? (1 << 4) : 0);
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return 0;
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}
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static int rk3288_hdmi_ofdata_to_platdata(struct udevice *dev)
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{
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struct rk_hdmi_priv *priv = dev_get_priv(dev);
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struct dw_hdmi *hdmi = &priv->hdmi;
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hdmi->i2c_clk_high = 0x7a;
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hdmi->i2c_clk_low = 0x8d;
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/*
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* TODO(sjg@chromium.org): The above values don't work - these
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* ones work better, but generate lots of errors in the data.
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*/
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hdmi->i2c_clk_high = 0x0d;
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hdmi->i2c_clk_low = 0x0d;
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return rk_hdmi_ofdata_to_platdata(dev);
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}
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static int rk3288_clk_config(struct udevice *dev)
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{
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struct display_plat *uc_plat = dev_get_uclass_platdata(dev);
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struct clk clk;
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int ret;
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/*
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* Configure the maximum clock to permit whatever resolution the
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* monitor wants
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*/
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ret = clk_get_by_index(uc_plat->src_dev, 0, &clk);
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if (ret >= 0) {
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ret = clk_set_rate(&clk, 384000000);
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clk_free(&clk);
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}
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if (ret < 0) {
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debug("%s: Failed to set clock in source device '%s': ret=%d\n",
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__func__, uc_plat->src_dev->name, ret);
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return ret;
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}
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return 0;
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}
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static const char * const rk3288_regulator_names[] = {
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"vcc50_hdmi"
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};
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static int rk3288_hdmi_probe(struct udevice *dev)
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{
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/* Enable VOP clock for RK3288 */
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rk3288_clk_config(dev);
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/* Enable regulators required for HDMI */
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rk_hdmi_probe_regulators(dev, rk3288_regulator_names,
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ARRAY_SIZE(rk3288_regulator_names));
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return rk_hdmi_probe(dev);
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}
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static const struct dm_display_ops rk3288_hdmi_ops = {
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.read_edid = rk_hdmi_read_edid,
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.enable = rk3288_hdmi_enable,
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};
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static const struct udevice_id rk3288_hdmi_ids[] = {
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{ .compatible = "rockchip,rk3288-dw-hdmi" },
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{ }
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};
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U_BOOT_DRIVER(rk3288_hdmi_rockchip) = {
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.name = "rk3288_hdmi_rockchip",
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.id = UCLASS_DISPLAY,
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.of_match = rk3288_hdmi_ids,
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.ops = &rk3288_hdmi_ops,
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.ofdata_to_platdata = rk3288_hdmi_ofdata_to_platdata,
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.probe = rk3288_hdmi_probe,
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.priv_auto_alloc_size = sizeof(struct rk_hdmi_priv),
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};
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