197 lines
5.4 KiB
C
197 lines
5.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* serdes-bridge.c -- display bridge for different serdes chips
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*
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* Copyright (c) 2023 Rockchip Electronics Co. Ltd.
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*
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* Author: luowei <lw@rock-chips.com>
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*/
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#include "core.h"
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static void serdes_bridge_init(struct serdes *serdes)
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{
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if (serdes->vpower_supply)
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regulator_set_enable(serdes->vpower_supply, true);
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if (dm_gpio_is_valid(&serdes->enable_gpio))
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dm_gpio_set_value(&serdes->enable_gpio, 1);
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mdelay(5);
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//video_bridge_set_active(serdes->dev, true);
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if (serdes->chip_data->bridge_ops->init)
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serdes->chip_data->bridge_ops->init(serdes);
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serdes_i2c_set_sequence(serdes);
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SERDES_DBG_MFD("%s: %s %s\n", __func__,
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serdes->dev->name,
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serdes->chip_data->name);
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}
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static void serdes_bridge_pre_enable(struct rockchip_bridge *bridge)
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{
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struct udevice *dev = bridge->dev;
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struct serdes *serdes = dev_get_priv(dev->parent);
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//serdes_bridge_init(serdes);
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if (serdes->chip_data->bridge_ops->pre_enable)
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serdes->chip_data->bridge_ops->pre_enable(serdes);
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SERDES_DBG_MFD("%s: %s %s\n", __func__,
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serdes->dev->name,
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serdes->chip_data->name);
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}
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static void serdes_bridge_post_disable(struct rockchip_bridge *bridge)
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{
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struct udevice *dev = bridge->dev;
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struct serdes *serdes = dev_get_priv(dev->parent);
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if (serdes->chip_data->bridge_ops->post_disable)
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serdes->chip_data->bridge_ops->post_disable(serdes);
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SERDES_DBG_MFD("%s: %s %s\n", __func__,
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serdes->dev->name,
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serdes->chip_data->name);
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}
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static void serdes_bridge_enable(struct rockchip_bridge *bridge)
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{
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struct udevice *dev = bridge->dev;
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struct serdes *serdes = dev_get_priv(dev->parent);
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if (serdes->chip_data->serdes_type == TYPE_DES)
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serdes_bridge_init(serdes);
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if (serdes->chip_data->bridge_ops->enable)
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serdes->chip_data->bridge_ops->enable(serdes);
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SERDES_DBG_MFD("%s: %s %s\n", __func__,
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serdes->dev->name,
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serdes->chip_data->name);
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}
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static void serdes_bridge_disable(struct rockchip_bridge *bridge)
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{
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struct udevice *dev = bridge->dev;
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struct serdes *serdes = dev_get_priv(dev->parent);
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if (serdes->chip_data->bridge_ops->disable)
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serdes->chip_data->bridge_ops->disable(serdes);
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SERDES_DBG_MFD("%s: %s %s\n", __func__, serdes->dev->name,
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serdes->chip_data->name);
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}
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static void serdes_bridge_mode_set(struct rockchip_bridge *bridge,
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const struct drm_display_mode *mode)
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{
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struct udevice *dev = bridge->dev;
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struct serdes *serdes = dev_get_priv(dev->parent);
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memcpy(&serdes->serdes_bridge->mode, mode,
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sizeof(struct drm_display_mode));
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SERDES_DBG_MFD("%s: %s %s\n", __func__, serdes->dev->name,
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serdes->chip_data->name);
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}
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static bool serdes_bridge_detect(struct rockchip_bridge *bridge)
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{
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bool ret = true;
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struct udevice *dev = bridge->dev;
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struct serdes *serdes = dev_get_priv(dev->parent);
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if (serdes->chip_data->bridge_ops->detect)
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ret = serdes->chip_data->bridge_ops->detect(serdes);
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SERDES_DBG_MFD("%s: %s %s %s\n", __func__, serdes->dev->name,
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serdes->chip_data->name, (ret == true) ? "detected" : "no detected");
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return ret;
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}
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struct rockchip_bridge_funcs serdes_bridge_ops = {
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.pre_enable = serdes_bridge_pre_enable,
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.post_disable = serdes_bridge_post_disable,
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.enable = serdes_bridge_enable,
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.disable = serdes_bridge_disable,
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.mode_set = serdes_bridge_mode_set,
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.detect = serdes_bridge_detect,
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};
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static int serdes_bridge_probe(struct udevice *dev)
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{
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struct rockchip_bridge *bridge;
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struct serdes *serdes = dev_get_priv(dev->parent);
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struct mipi_dsi_device *device = dev_get_platdata(dev);
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if (!serdes->chip_data->bridge_ops) {
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SERDES_DBG_MFD("%s %s no bridge ops\n",
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__func__, serdes->chip_data->name);
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return 0;
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}
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serdes->sel_mipi = dev_read_bool(dev->parent, "sel-mipi");
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if (serdes->sel_mipi) {
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device->dev = dev;
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device->lanes = dev_read_u32_default(dev->parent, "dsi,lanes", 4);
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device->format = dev_read_u32_default(dev->parent, "dsi,format",
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MIPI_DSI_FMT_RGB888);
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device->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
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device->channel = dev_read_u32_default(dev->parent, "reg", 0);
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}
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bridge = calloc(1, sizeof(*bridge));
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if (!bridge)
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return -ENOMEM;
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dev->driver_data = (ulong)bridge;
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bridge->dev = dev;
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bridge->funcs = &serdes_bridge_ops;
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serdes->serdes_bridge->bridge = bridge;
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SERDES_DBG_MFD("%s: %s %s bridge=%p name=%s device=%p\n",
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__func__, serdes->dev->name,
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serdes->chip_data->name,
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bridge, bridge->dev->name, device);
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return 0;
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}
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static const struct udevice_id serdes_of_match[] = {
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#if IS_ENABLED(CONFIG_SERDES_DISPLAY_CHIP_ROHM_BU18TL82)
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{ .compatible = "rohm,bu18tl82-bridge", },
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#endif
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#if IS_ENABLED(CONFIG_SERDES_DISPLAY_CHIP_ROHM_BU18RL82)
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{ .compatible = "rohm,bu18rl82-bridge", },
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#endif
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#if IS_ENABLED(CONFIG_SERDES_DISPLAY_CHIP_MAXIM_MAX96745)
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{ .compatible = "maxim,max96745-bridge", },
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#endif
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#if IS_ENABLED(CONFIG_SERDES_DISPLAY_CHIP_MAXIM_MAX96755)
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{ .compatible = "maxim,max96755-bridge", },
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#endif
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#if IS_ENABLED(CONFIG_SERDES_DISPLAY_CHIP_MAXIM_MAX96755)
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{ .compatible = "maxim,max96789-bridge", },
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#endif
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#if IS_ENABLED(CONFIG_SERDES_DISPLAY_CHIP_ROCKCHIP_RKX111)
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{ .compatible = "rockchip,rkx111-bridge", },
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#endif
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{ }
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};
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U_BOOT_DRIVER(serdes_bridge) = {
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.name = "serdes-bridge",
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.id = UCLASS_VIDEO_BRIDGE,
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.of_match = serdes_of_match,
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.probe = serdes_bridge_probe,
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.priv_auto_alloc_size = sizeof(struct serdes_bridge),
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.platdata_auto_alloc_size = sizeof(struct mipi_dsi_device),
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};
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