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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
[mirror_ubuntu-hirsute-kernel.git] / drivers / mailbox / mailbox.h
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d2912cb1 1/* SPDX-License-Identifier: GPL-2.0-only */
86c22f8c
AC
2
3#ifndef __MAILBOX_H
4#define __MAILBOX_H
5
6#define TXDONE_BY_IRQ BIT(0) /* controller has remote RTR irq */
7#define TXDONE_BY_POLL BIT(1) /* controller can read status of last TX */
8#define TXDONE_BY_ACK BIT(2) /* S/W ACK recevied by Client ticks the TX */
9
10#endif /* __MAILBOX_H */