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- // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
- /*
- * Copyright (C) 2019, STMicroelectronics - All Rights Reserved
- */
- #include <common.h>
- #include <display.h>
- #include <dm.h>
- #include <dsi_host.h>
- /**
- * struct sandbox_dsi_host_priv - private data for driver
- * @device: DSI peripheral device
- * @timing: Display timings
- * @max_data_lanes: maximum number of data lines
- * @phy_ops: set of function pointers for performing physical operations
- */
- struct sandbox_dsi_host_priv {
- struct mipi_dsi_device *device;
- struct display_timing *timings;
- unsigned int max_data_lanes;
- const struct mipi_dsi_phy_ops *phy_ops;
- };
- static int sandbox_dsi_host_init(struct udevice *dev,
- struct mipi_dsi_device *device,
- struct display_timing *timings,
- unsigned int max_data_lanes,
- const struct mipi_dsi_phy_ops *phy_ops)
- {
- struct sandbox_dsi_host_priv *priv = dev_get_priv(dev);
- if (!device)
- return -1;
- if (!timings)
- return -2;
- if (max_data_lanes == 0)
- return -3;
- if (!phy_ops)
- return -4;
- if (!phy_ops->init || !phy_ops->get_lane_mbps ||
- !phy_ops->post_set_mode)
- return -5;
- priv->max_data_lanes = max_data_lanes;
- priv->phy_ops = phy_ops;
- priv->timings = timings;
- priv->device = device;
- return 0;
- }
- static int sandbox_dsi_host_enable(struct udevice *dev)
- {
- struct sandbox_dsi_host_priv *priv = dev_get_priv(dev);
- unsigned int lane_mbps;
- int ret;
- priv->phy_ops->init(priv->device);
- ret = priv->phy_ops->get_lane_mbps(priv->device, priv->timings, 2,
- MIPI_DSI_FMT_RGB888, &lane_mbps);
- if (ret)
- return -1;
- priv->phy_ops->post_set_mode(priv->device, MIPI_DSI_MODE_VIDEO);
- return 0;
- }
- struct dsi_host_ops sandbox_dsi_host_ops = {
- .init = sandbox_dsi_host_init,
- .enable = sandbox_dsi_host_enable,
- };
- static const struct udevice_id sandbox_dsi_host_ids[] = {
- { .compatible = "sandbox,dsi-host"},
- { }
- };
- U_BOOT_DRIVER(sandbox_dsi_host) = {
- .name = "sandbox-dsi-host",
- .id = UCLASS_DSI_HOST,
- .of_match = sandbox_dsi_host_ids,
- .ops = &sandbox_dsi_host_ops,
- .priv_auto = sizeof(struct sandbox_dsi_host_priv),
- };
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