Hi Quan,
On Tue, Mar 30, 2021 at 09:10:28PM +0700, Quan Nguyen wrote:
The SMBus system interface (SSIF) IPMI BMC driver can be used to perform[...]
in-band IPMI communication with their host in management (BMC) side.
This commits adds support specifically for Aspeed AST2500 which commonly
used as Board Management Controllers.
Signed-off-by: Quan Nguyen <quan@xxxxxxxxxxxxxxxxxxxxxx>
---
diff --git a/drivers/char/ipmi/ssif_bmc_aspeed.c b/drivers/char/ipmi/ssif_bmc_aspeed.c
new file mode 100644
index 000000000000..a563fcff5acc
--- /dev/null
+++ b/drivers/char/ipmi/ssif_bmc_aspeed.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * The driver for BMC side of Aspeed SSIF interface
+ *
+ * Copyright (c) 2021, Ampere Computing LLC
+ *
+ * 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; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <linux/i2c.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/poll.h>
+#include <linux/iopoll.h>
+
+#include "ssif_bmc.h"
+
+struct aspeed_i2c_bus {
+ struct i2c_adapter adap;
+ struct device *dev;
This device handle is apparently unused.
+ void __iomem *base;
+ struct reset_control *rst;
This reset control handle is unused as well.