mirror of
https://github.com/AsahiLinux/u-boot
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1e94b46f73
This old patch was marked as deferred. Bring it back to life, to continue towards the removal of common.h Move this out of the common header and include it only where needed. Signed-off-by: Simon Glass <sjg@chromium.org>
91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm/device-internal.h>
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#include <errno.h>
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#include <malloc.h>
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#include <sysreset.h>
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#include <wdt.h>
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#include <linux/printk.h>
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struct wdt_reboot_plat {
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struct udevice *wdt;
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};
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static int wdt_reboot_request(struct udevice *dev, enum sysreset_t type)
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{
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struct wdt_reboot_plat *plat = dev_get_plat(dev);
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int ret;
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switch (type) {
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case SYSRESET_COLD:
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case SYSRESET_WARM:
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ret = wdt_expire_now(plat->wdt, 0);
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if (ret)
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return ret;
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break;
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default:
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return -ENOSYS;
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}
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return -EINPROGRESS;
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}
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static struct sysreset_ops wdt_reboot_ops = {
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.request = wdt_reboot_request,
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};
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static int wdt_reboot_of_to_plat(struct udevice *dev)
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{
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struct wdt_reboot_plat *plat = dev_get_plat(dev);
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int err;
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err = uclass_get_device_by_phandle(UCLASS_WDT, dev,
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"wdt", &plat->wdt);
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if (err) {
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pr_err("unable to find wdt device\n");
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return err;
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}
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return 0;
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}
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static const struct udevice_id wdt_reboot_ids[] = {
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{ .compatible = "wdt-reboot" },
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{ /* sentinel */ }
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};
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U_BOOT_DRIVER(wdt_reboot) = {
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.name = "wdt_reboot",
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.id = UCLASS_SYSRESET,
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.of_match = wdt_reboot_ids,
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.of_to_plat = wdt_reboot_of_to_plat,
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.plat_auto = sizeof(struct wdt_reboot_plat),
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.ops = &wdt_reboot_ops,
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};
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#if IS_ENABLED(CONFIG_SYSRESET_WATCHDOG_AUTO)
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int sysreset_register_wdt(struct udevice *dev)
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{
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struct wdt_reboot_plat *plat = malloc(sizeof(*plat));
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int ret;
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if (!plat)
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return -ENOMEM;
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plat->wdt = dev;
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ret = device_bind(dev, DM_DRIVER_GET(wdt_reboot),
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dev->name, plat, ofnode_null(), NULL);
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if (ret) {
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free(plat);
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return ret;
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}
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return 0;
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}
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#endif
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