From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/drivers/watchdog/sbsa_gwdt.c | 42 +++++++-----------------------------------
1 files changed, 7 insertions(+), 35 deletions(-)
diff --git a/kernel/drivers/watchdog/sbsa_gwdt.c b/kernel/drivers/watchdog/sbsa_gwdt.c
index e8bd988..4cbe6ba 100644
--- a/kernel/drivers/watchdog/sbsa_gwdt.c
+++ b/kernel/drivers/watchdog/sbsa_gwdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* SBSA(Server Base System Architecture) Generic Watchdog driver
*
@@ -6,15 +7,6 @@
* Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
* Al Stone <al.stone@linaro.org>
* Timur Tabi <timur@codeaurora.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License 2 as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*
* ARM SBSA Generic Watchdog has two stage timeouts:
* the first signal (WS0) is for alerting the system by interrupt,
@@ -46,7 +38,6 @@
* by WOR, in the single stage mode, the timeout is (WOR * 2); in the two
* stages mode, the timeout is WOR. The maximum timeout in the two stages mode
* is half of that in the single stage mode.
- *
*/
#include <linux/io.h>
@@ -130,6 +121,7 @@
struct sbsa_gwdt *gwdt = watchdog_get_drvdata(wdd);
wdd->timeout = timeout;
+ timeout = clamp_t(unsigned int, timeout, 1, wdd->max_hw_heartbeat_ms / 1000);
if (action)
writel(gwdt->clk * timeout,
@@ -161,7 +153,7 @@
timeleft += readl(gwdt->control_base + SBSA_GWDT_WOR);
timeleft += lo_hi_readq(gwdt->control_base + SBSA_GWDT_WCV) -
- arch_counter_get_cntvct();
+ arch_timer_read_counter();
do_div(timeleft, gwdt->clk);
@@ -231,7 +223,6 @@
struct device *dev = &pdev->dev;
struct watchdog_device *wdd;
struct sbsa_gwdt *gwdt;
- struct resource *res;
int ret, irq;
u32 status;
@@ -240,13 +231,11 @@
return -ENOMEM;
platform_set_drvdata(pdev, gwdt);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- cf_base = devm_ioremap_resource(dev, res);
+ cf_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(cf_base))
return PTR_ERR(cf_base);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- rf_base = devm_ioremap_resource(dev, res);
+ rf_base = devm_platform_ioremap_resource(pdev, 1);
if (IS_ERR(rf_base))
return PTR_ERR(rf_base);
@@ -313,29 +302,14 @@
*/
sbsa_gwdt_set_timeout(wdd, wdd->timeout);
- ret = watchdog_register_device(wdd);
+ watchdog_stop_on_reboot(wdd);
+ ret = devm_watchdog_register_device(dev, wdd);
if (ret)
return ret;
dev_info(dev, "Initialized with %ds timeout @ %u Hz, action=%d.%s\n",
wdd->timeout, gwdt->clk, action,
status & SBSA_GWDT_WCS_EN ? " [enabled]" : "");
-
- return 0;
-}
-
-static void sbsa_gwdt_shutdown(struct platform_device *pdev)
-{
- struct sbsa_gwdt *gwdt = platform_get_drvdata(pdev);
-
- sbsa_gwdt_stop(&gwdt->wdd);
-}
-
-static int sbsa_gwdt_remove(struct platform_device *pdev)
-{
- struct sbsa_gwdt *gwdt = platform_get_drvdata(pdev);
-
- watchdog_unregister_device(&gwdt->wdd);
return 0;
}
@@ -385,8 +359,6 @@
.of_match_table = sbsa_gwdt_of_match,
},
.probe = sbsa_gwdt_probe,
- .remove = sbsa_gwdt_remove,
- .shutdown = sbsa_gwdt_shutdown,
.id_table = sbsa_gwdt_pdev_match,
};
--
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