mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 17:58:23 +00:00
9b643e312d
U-Boot widely uses error() as a bit noisier variant of printf(). This macro causes name conflict with the following line in include/linux/compiler-gcc.h: # define __compiletime_error(message) __attribute__((error(message))) This prevents us from using __compiletime_error(), and makes it difficult to fully sync BUILD_BUG macros with Linux. (Notice Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().) Let's convert error() into now treewide-available pr_err(). Done with the help of Coccinelle, excluing tools/ directory. The semantic patch I used is as follows: // <smpl> @@@@ -error +pr_err (...) // </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Re-run Coccinelle] Signed-off-by: Tom Rini <trini@konsulko.com>
78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
|
|
*
|
|
* Derived from linux/drivers/power/reset/syscon-reboot.c:
|
|
* Copyright (C) 2013, Applied Micro Circuits Corporation
|
|
* Author: Feng Kan <fkan@apm.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <regmap.h>
|
|
#include <sysreset.h>
|
|
#include <syscon.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
struct syscon_reboot_priv {
|
|
struct regmap *regmap;
|
|
unsigned int offset;
|
|
unsigned int mask;
|
|
};
|
|
|
|
static int syscon_reboot_request(struct udevice *dev, enum sysreset_t type)
|
|
{
|
|
struct syscon_reboot_priv *priv = dev_get_priv(dev);
|
|
|
|
regmap_write(priv->regmap, priv->offset, priv->mask);
|
|
|
|
return -EINPROGRESS;
|
|
}
|
|
|
|
static struct sysreset_ops syscon_reboot_ops = {
|
|
.request = syscon_reboot_request,
|
|
};
|
|
|
|
int syscon_reboot_probe(struct udevice *dev)
|
|
{
|
|
struct udevice *syscon;
|
|
struct syscon_reboot_priv *priv = dev_get_priv(dev);
|
|
int err;
|
|
|
|
err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
|
|
"regmap", &syscon);
|
|
if (err) {
|
|
pr_err("unable to find syscon device\n");
|
|
return err;
|
|
}
|
|
|
|
priv->regmap = syscon_get_regmap(syscon);
|
|
if (!priv->regmap) {
|
|
pr_err("unable to find regmap\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
priv->offset = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
|
|
"offset", 0);
|
|
priv->mask = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
|
|
"mask", 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id syscon_reboot_ids[] = {
|
|
{ .compatible = "syscon-reboot" },
|
|
{ /* sentinel */ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(syscon_reboot) = {
|
|
.name = "syscon_reboot",
|
|
.id = UCLASS_SYSRESET,
|
|
.of_match = syscon_reboot_ids,
|
|
.probe = syscon_reboot_probe,
|
|
.priv_auto_alloc_size = sizeof(struct syscon_reboot_priv),
|
|
.ops = &syscon_reboot_ops,
|
|
};
|