Re: [PATCH v2 2/3] drivers: char: ipmi: Add Aspeed SSIF BMC driver
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: 2021-04-02 12:02:08
Also in:
linux-aspeed, linux-devicetree, linux-i2c, lkml, openbmc
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@os.amperecomputing.com> ---
[...]
quoted hunk ↗ jump to hunk
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.
+ /* Synchronizes I/O mem access to base. */ + spinlock_t lock; +};
regards Philipp _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel