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sysreset: watchdog: Move watchdog reference to plat data

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Currently, the wdt_reboot driver always gets its watchdog device
reference from an OF node. This prevents selecting a watchdog at
runtime. Move the watchdog device reference to the plat data, so
the driver can be bound with the reference pre-provided. The
reference will still be acquired from the OF node if it is not
already provided.

Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Samuel Holland 2021-11-03 22:55:13 -05:00 committed by Stefan Roese
parent 30ba45dbd6
commit 5544a01142
1 changed files with 8 additions and 8 deletions
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16
drivers/sysreset/sysreset_watchdog.c
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@ -9,16 +9,16 @@
#include <sysreset.h>
#include <wdt.h>
struct wdt_reboot_priv {
struct wdt_reboot_plat {
struct udevice *wdt;
};
static int wdt_reboot_request(struct udevice *dev, enum sysreset_t type)
{
struct wdt_reboot_priv *priv = dev_get_priv(dev);
struct wdt_reboot_plat *plat = dev_get_plat(dev);
int ret;
ret = wdt_expire_now(priv->wdt, 0);
ret = wdt_expire_now(plat->wdt, 0);
if (ret)
return ret;
@ -29,13 +29,13 @@ static struct sysreset_ops wdt_reboot_ops = {
.request = wdt_reboot_request,
};
static int wdt_reboot_probe(struct udevice *dev)
static int wdt_reboot_of_to_plat(struct udevice *dev)
{
struct wdt_reboot_priv *priv = dev_get_priv(dev);
struct wdt_reboot_plat *plat = dev_get_plat(dev);
int err;
err = uclass_get_device_by_phandle(UCLASS_WDT, dev,
"wdt", &priv->wdt);
"wdt", &plat->wdt);
if (err) {
pr_err("unable to find wdt device\n");
return err;
@ -53,7 +53,7 @@ U_BOOT_DRIVER(wdt_reboot) = {
.name = "wdt_reboot",
.id = UCLASS_SYSRESET,
.of_match = wdt_reboot_ids,
.of_to_plat = wdt_reboot_of_to_plat,
.plat_auto = sizeof(struct wdt_reboot_plat),
.ops = &wdt_reboot_ops,
.priv_auto = sizeof(struct wdt_reboot_priv),
.probe = wdt_reboot_probe,
};