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114 lines
3.1 KiB
Diff
114 lines
3.1 KiB
Diff
From 80969a68ffed12f82e2a29908306ff43a6861a61 Mon Sep 17 00:00:00 2001
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From: Damien Riegel <damien.riegel@savoirfairelinux.com>
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Date: Mon, 16 Nov 2015 12:28:09 -0500
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Subject: watchdog: qcom-wdt: use core restart handler
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Get rid of the custom restart handler by using the one provided by the
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watchdog core.
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Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
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Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
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Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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---
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drivers/watchdog/qcom-wdt.c | 49 ++++++++++++++++++---------------------------
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1 file changed, 19 insertions(+), 30 deletions(-)
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--- a/drivers/watchdog/qcom-wdt.c
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+++ b/drivers/watchdog/qcom-wdt.c
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@@ -17,7 +17,6 @@
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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-#include <linux/reboot.h>
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#include <linux/watchdog.h>
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#define WDT_RST 0x38
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@@ -28,7 +27,6 @@ struct qcom_wdt {
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struct watchdog_device wdd;
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struct clk *clk;
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unsigned long rate;
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- struct notifier_block restart_nb;
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void __iomem *base;
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};
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@@ -72,25 +70,9 @@ static int qcom_wdt_set_timeout(struct w
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return qcom_wdt_start(wdd);
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}
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-static const struct watchdog_ops qcom_wdt_ops = {
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- .start = qcom_wdt_start,
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- .stop = qcom_wdt_stop,
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- .ping = qcom_wdt_ping,
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- .set_timeout = qcom_wdt_set_timeout,
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- .owner = THIS_MODULE,
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-};
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-
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-static const struct watchdog_info qcom_wdt_info = {
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- .options = WDIOF_KEEPALIVEPING
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- | WDIOF_MAGICCLOSE
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- | WDIOF_SETTIMEOUT,
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- .identity = KBUILD_MODNAME,
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-};
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-
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-static int qcom_wdt_restart(struct notifier_block *nb, unsigned long action,
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- void *data)
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+static int qcom_wdt_restart(struct watchdog_device *wdd)
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{
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- struct qcom_wdt *wdt = container_of(nb, struct qcom_wdt, restart_nb);
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+ struct qcom_wdt *wdt = to_qcom_wdt(wdd);
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u32 timeout;
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/*
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@@ -110,9 +92,25 @@ static int qcom_wdt_restart(struct notif
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wmb();
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msleep(150);
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- return NOTIFY_DONE;
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+ return 0;
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}
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+static const struct watchdog_ops qcom_wdt_ops = {
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+ .start = qcom_wdt_start,
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+ .stop = qcom_wdt_stop,
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+ .ping = qcom_wdt_ping,
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+ .set_timeout = qcom_wdt_set_timeout,
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+ .restart = qcom_wdt_restart,
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+ .owner = THIS_MODULE,
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+};
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+
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+static const struct watchdog_info qcom_wdt_info = {
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+ .options = WDIOF_KEEPALIVEPING
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+ | WDIOF_MAGICCLOSE
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+ | WDIOF_SETTIMEOUT,
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+ .identity = KBUILD_MODNAME,
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+};
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+
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static int qcom_wdt_probe(struct platform_device *pdev)
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{
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struct qcom_wdt *wdt;
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@@ -187,14 +185,6 @@ static int qcom_wdt_probe(struct platfor
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goto err_clk_unprepare;
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}
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- /*
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- * WDT restart notifier has priority 0 (use as a last resort)
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- */
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- wdt->restart_nb.notifier_call = qcom_wdt_restart;
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- ret = register_restart_handler(&wdt->restart_nb);
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- if (ret)
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- dev_err(&pdev->dev, "failed to setup restart handler\n");
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-
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platform_set_drvdata(pdev, wdt);
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return 0;
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@@ -207,7 +197,6 @@ static int qcom_wdt_remove(struct platfo
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{
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struct qcom_wdt *wdt = platform_get_drvdata(pdev);
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- unregister_restart_handler(&wdt->restart_nb);
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watchdog_unregister_device(&wdt->wdd);
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clk_disable_unprepare(wdt->clk);
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return 0;
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