From ea08eeccae9297f7aabd2ef7f0c2517ac4549acc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:18:26 +0000
Subject: [PATCH] write in 30M
---
kernel/drivers/mailbox/arm_mhu.c | 38 ++++++++++----------------------------
1 files changed, 10 insertions(+), 28 deletions(-)
diff --git a/kernel/drivers/mailbox/arm_mhu.c b/kernel/drivers/mailbox/arm_mhu.c
index 99befa7..b7fbf27 100644
--- a/kernel/drivers/mailbox/arm_mhu.c
+++ b/kernel/drivers/mailbox/arm_mhu.c
@@ -1,28 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2013-2015 Fujitsu Semiconductor Ltd.
* Copyright (C) 2015 Linaro Ltd.
* Author: Jassi Brar <jaswinder.singh@linaro.org>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 2 of the License.
- *
- * 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.
*/
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/module.h>
#include <linux/amba/bus.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
#include <linux/mailbox_controller.h>
+#include <linux/module.h>
#define INTR_STAT_OFS 0x0
#define INTR_SET_OFS 0x8
@@ -124,6 +113,9 @@
struct device *dev = &adev->dev;
int mhu_reg[MHU_CHANS] = {MHU_LP_OFFSET, MHU_HP_OFFSET, MHU_SEC_OFFSET};
+ if (!of_device_is_compatible(dev->of_node, "arm,mhu"))
+ return -ENODEV;
+
/* Allocate memory for device */
mhu = devm_kzalloc(dev, sizeof(*mhu), GFP_KERNEL);
if (!mhu)
@@ -152,22 +144,13 @@
amba_set_drvdata(adev, mhu);
- err = mbox_controller_register(&mhu->mbox);
+ err = devm_mbox_controller_register(dev, &mhu->mbox);
if (err) {
dev_err(dev, "Failed to register mailboxes %d\n", err);
return err;
}
dev_info(dev, "ARM MHU Mailbox registered\n");
- return 0;
-}
-
-static int mhu_remove(struct amba_device *adev)
-{
- struct arm_mhu *mhu = amba_get_drvdata(adev);
-
- mbox_controller_unregister(&mhu->mbox);
-
return 0;
}
@@ -186,7 +169,6 @@
},
.id_table = mhu_ids,
.probe = mhu_probe,
- .remove = mhu_remove,
};
module_amba_driver(arm_mhu_driver);
--
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