u-boot/drivers/demo/demo-uclass.c
Patrick Delaunay 455f2d15bf demo: migrate uclass to livetree
Use dev_ function to read the sides and colour to support a live tree.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-05 08:50:15 -04:00

75 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2013 Google, Inc
*
* (C) Copyright 2012
* Pavel Herrmann <morpheus.ibis@gmail.com>
*/
#include <common.h>
#include <dm.h>
#include <dm-demo.h>
#include <errno.h>
#include <log.h>
#include <malloc.h>
#include <asm/io.h>
#include <linux/list.h>
UCLASS_DRIVER(demo) = {
.name = "demo",
.id = UCLASS_DEMO,
};
int demo_hello(struct udevice *dev, int ch)
{
const struct demo_ops *ops = device_get_ops(dev);
if (!ops->hello)
return -ENOSYS;
return ops->hello(dev, ch);
}
int demo_status(struct udevice *dev, int *status)
{
const struct demo_ops *ops = device_get_ops(dev);
if (!ops->status)
return -ENOSYS;
return ops->status(dev, status);
}
int demo_get_light(struct udevice *dev)
{
const struct demo_ops *ops = device_get_ops(dev);
if (!ops->get_light)
return -ENOSYS;
return ops->get_light(dev);
}
int demo_set_light(struct udevice *dev, int light)
{
const struct demo_ops *ops = device_get_ops(dev);
if (!ops->set_light)
return -ENOSYS;
return ops->set_light(dev, light);
}
int demo_parse_dt(struct udevice *dev)
{
struct dm_demo_pdata *pdata = dev_get_plat(dev);
pdata->sides = dev_read_s32_default(dev, "sides", 0);
pdata->colour = dev_read_string(dev, "colour");
if (!pdata->sides || !pdata->colour) {
debug("%s: Invalid device tree data\n", __func__);
return -EINVAL;
}
return 0;
}