u-boot/drivers/dma/xilinx_dpdma.c
Michal Simek d926695cc5 dma: xilinx: Add Display Port DMA driver
Display Port (DP) has own dma driver that's why add this skeleton driver
only for handling power domain setting and send configuration object to
PMUFW to enable it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/fe8bc313bcd430b04e9fa6fb770d5799ef28b350.1645627920.git.michal.simek@xilinx.com
2022-03-09 12:35:50 +01:00

43 lines
859 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021 Xilinx Inc.
*/
#include <common.h>
#include <cpu_func.h>
#include <dm.h>
#include <dma.h>
#include <dma-uclass.h>
#include <errno.h>
#include <dm/device_compat.h>
/**
* struct zynqmp_dpdma_priv - Private structure
* @dev: Device uclass for video_ops
*/
struct zynqmp_dpdma_priv {
struct udevice *dev;
};
static int zynqmp_dpdma_probe(struct udevice *dev)
{
/* Only placeholder for power domain driver */
return 0;
}
static const struct dma_ops zynqmp_dpdma_ops = {
};
static const struct udevice_id zynqmp_dpdma_ids[] = {
{ .compatible = "xlnx,zynqmp-dpdma" },
{ }
};
U_BOOT_DRIVER(zynqmp_dpdma) = {
.name = "zynqmp_dpdma",
.id = UCLASS_DMA,
.of_match = zynqmp_dpdma_ids,
.ops = &zynqmp_dpdma_ops,
.probe = zynqmp_dpdma_probe,
.priv_auto = sizeof(struct zynqmp_dpdma_priv),
};