/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2022 Rockchip Electronics Co., Ltd
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*/
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#ifndef __SOC_ROCKCHIP_MAILBOX_H__
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#define __SOC_ROCKCHIP_MAILBOX_H__
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#include <linux/errno.h>
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#include <linux/types.h>
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struct mbox_chan;
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struct rockchip_mbox_msg {
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u32 cmd;
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u32 data;
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};
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#if IS_REACHABLE(CONFIG_ROCKCHIP_MBOX)
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int rockchip_mbox_read_msg(struct mbox_chan *chan,
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struct rockchip_mbox_msg *msg);
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#else
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static inline int rockchip_mbox_read_msg(struct mbox_chan *chan,
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struct rockchip_mbox_msg *msg)
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{
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return -EOPNOTSUPP;
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}
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#endif
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#endif /* __SOC_ROCKCHIP_MAILBOX_H__ */
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