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/meson_gxbb_wdt.c | 49 ++++++++++++++++---------------------------------
1 files changed, 16 insertions(+), 33 deletions(-)
diff --git a/kernel/drivers/watchdog/meson_gxbb_wdt.c b/kernel/drivers/watchdog/meson_gxbb_wdt.c
index 0a66727..5a9ca10 100644
--- a/kernel/drivers/watchdog/meson_gxbb_wdt.c
+++ b/kernel/drivers/watchdog/meson_gxbb_wdt.c
@@ -136,32 +136,40 @@
};
MODULE_DEVICE_TABLE(of, meson_gxbb_wdt_dt_ids);
+static void meson_clk_disable_unprepare(void *data)
+{
+ clk_disable_unprepare(data);
+}
+
static int meson_gxbb_wdt_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct meson_gxbb_wdt *data;
- struct resource *res;
int ret;
- data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- data->reg_base = devm_ioremap_resource(&pdev->dev, res);
+ data->reg_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(data->reg_base))
return PTR_ERR(data->reg_base);
- data->clk = devm_clk_get(&pdev->dev, NULL);
+ data->clk = devm_clk_get(dev, NULL);
if (IS_ERR(data->clk))
return PTR_ERR(data->clk);
ret = clk_prepare_enable(data->clk);
if (ret)
return ret;
+ ret = devm_add_action_or_reset(dev, meson_clk_disable_unprepare,
+ data->clk);
+ if (ret)
+ return ret;
platform_set_drvdata(pdev, data);
- data->wdt_dev.parent = &pdev->dev;
+ data->wdt_dev.parent = dev;
data->wdt_dev.info = &meson_gxbb_wdt_info;
data->wdt_dev.ops = &meson_gxbb_wdt_ops;
data->wdt_dev.max_hw_heartbeat_ms = GXBB_WDT_TCNT_SETUP_MASK;
@@ -178,37 +186,12 @@
meson_gxbb_wdt_set_timeout(&data->wdt_dev, data->wdt_dev.timeout);
- ret = watchdog_register_device(&data->wdt_dev);
- if (ret) {
- clk_disable_unprepare(data->clk);
- return ret;
- }
-
- return 0;
-}
-
-static int meson_gxbb_wdt_remove(struct platform_device *pdev)
-{
- struct meson_gxbb_wdt *data = platform_get_drvdata(pdev);
-
- watchdog_unregister_device(&data->wdt_dev);
-
- clk_disable_unprepare(data->clk);
-
- return 0;
-}
-
-static void meson_gxbb_wdt_shutdown(struct platform_device *pdev)
-{
- struct meson_gxbb_wdt *data = platform_get_drvdata(pdev);
-
- meson_gxbb_wdt_stop(&data->wdt_dev);
+ watchdog_stop_on_reboot(&data->wdt_dev);
+ return devm_watchdog_register_device(dev, &data->wdt_dev);
}
static struct platform_driver meson_gxbb_wdt_driver = {
.probe = meson_gxbb_wdt_probe,
- .remove = meson_gxbb_wdt_remove,
- .shutdown = meson_gxbb_wdt_shutdown,
.driver = {
.name = "meson-gxbb-wdt",
.pm = &meson_gxbb_wdt_pm_ops,
--
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