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@@ -0,0 +1,90 @@
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+// 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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+
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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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+/**
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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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+
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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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+
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+ if (!device)
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+ return -1;
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+
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+ if (!timings)
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+ return -2;
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+
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+ if (max_data_lanes == 0)
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+ return -3;
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+
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+ if (!phy_ops)
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+ return -4;
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+
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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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+
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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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+
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+ return 0;
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+}
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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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+
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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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+
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+ priv->phy_ops->post_set_mode(priv->device, MIPI_DSI_MODE_VIDEO);
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+
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+ return 0;
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+}
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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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+
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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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+
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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_alloc_size = sizeof(struct sandbox_dsi_host_priv),
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+};
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