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authorTom Rini <trini@konsulko.com>2019-10-14 07:30:16 -0400
committerTom Rini <trini@konsulko.com>2019-10-14 07:30:16 -0400
commitcd5ffc5de5a26f5b785e25654977fee25779b3e4 (patch)
tree7b63fdbb8683a9c3258f1901573c4633deec98c7 /drivers/video/sandbox_dsi_host.c
parentfae79480111be47944cf66a9c052ff3934a09ce5 (diff)
parentd68ed0fad6bb880bd2bbcc1d86cfc9ba971f856f (diff)
Merge tag 'video-for-2020.01' of https://gitlab.denx.de/u-boot/custodians/u-boot-video
- panel bridge support in stm32 ltdc - DSI host uclass - sandbox DSI host uclass test driver and DSI host test - MIPI DSI helpers - Synopsys Designware MIPI DSI host bridge driver - STM32 DSI controller driver - OTM800A and RM68200 panel support - DSI host updates for stm32f769 and stm32mp1 dtsi files - splash screen for stm32f769 and stm32mp1 boards - stm32 defconfig updates for display support
Diffstat (limited to 'drivers/video/sandbox_dsi_host.c')
-rw-r--r--drivers/video/sandbox_dsi_host.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/video/sandbox_dsi_host.c b/drivers/video/sandbox_dsi_host.c
new file mode 100644
index 0000000000..cd644ec0b4
--- /dev/null
+++ b/drivers/video/sandbox_dsi_host.c
@@ -0,0 +1,90 @@
+// 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_alloc_size = sizeof(struct sandbox_dsi_host_priv),
+};