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https://github.com/AsahiLinux/u-boot
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright (C) 2019, STMicroelectronics - All Rights Reserved
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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 <dsi_host.h>
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/**
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* struct sandbox_dsi_host_priv - private data for driver
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* @device: DSI peripheral device
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* @timing: Display timings
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* @max_data_lanes: maximum number of data lines
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* @phy_ops: set of function pointers for performing physical operations
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*/
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struct sandbox_dsi_host_priv {
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struct mipi_dsi_device *device;
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struct display_timing *timings;
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unsigned int max_data_lanes;
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const struct mipi_dsi_phy_ops *phy_ops;
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};
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static int sandbox_dsi_host_init(struct udevice *dev,
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struct mipi_dsi_device *device,
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struct display_timing *timings,
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unsigned int max_data_lanes,
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const struct mipi_dsi_phy_ops *phy_ops)
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{
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struct sandbox_dsi_host_priv *priv = dev_get_priv(dev);
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if (!device)
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return -1;
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if (!timings)
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return -2;
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if (max_data_lanes == 0)
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return -3;
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if (!phy_ops)
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return -4;
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if (!phy_ops->init || !phy_ops->get_lane_mbps ||
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!phy_ops->post_set_mode)
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return -5;
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priv->max_data_lanes = max_data_lanes;
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priv->phy_ops = phy_ops;
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priv->timings = timings;
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priv->device = device;
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return 0;
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}
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static int sandbox_dsi_host_enable(struct udevice *dev)
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{
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struct sandbox_dsi_host_priv *priv = dev_get_priv(dev);
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unsigned int lane_mbps;
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int ret;
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priv->phy_ops->init(priv->device);
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ret = priv->phy_ops->get_lane_mbps(priv->device, priv->timings, 2,
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MIPI_DSI_FMT_RGB888, &lane_mbps);
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if (ret)
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return -1;
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priv->phy_ops->post_set_mode(priv->device, MIPI_DSI_MODE_VIDEO);
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return 0;
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}
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struct dsi_host_ops sandbox_dsi_host_ops = {
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.init = sandbox_dsi_host_init,
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.enable = sandbox_dsi_host_enable,
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};
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static const struct udevice_id sandbox_dsi_host_ids[] = {
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{ .compatible = "sandbox,dsi-host"},
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{ }
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};
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U_BOOT_DRIVER(sandbox_dsi_host) = {
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.name = "sandbox-dsi-host",
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.id = UCLASS_DSI_HOST,
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.of_match = sandbox_dsi_host_ids,
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.ops = &sandbox_dsi_host_ops,
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.priv_auto = sizeof(struct sandbox_dsi_host_priv),
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};
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