[PATCH v3 3/6] sysreset: watchdog: Move watchdog reference to plat data

Samuel Holland samuel at sholland.org
Thu Nov 4 04:55:13 CET 2021


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 at canonical.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
Signed-off-by: Samuel Holland <samuel at sholland.org>
---

(no changes since v1)

 drivers/sysreset/sysreset_watchdog.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/sysreset/sysreset_watchdog.c b/drivers/sysreset/sysreset_watchdog.c
index c7ae368d41..b723f5647c 100644
--- a/drivers/sysreset/sysreset_watchdog.c
+++ b/drivers/sysreset/sysreset_watchdog.c
@@ -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,
 };
-- 
2.32.0



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