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| author | Arun P. Mohanan <arun.p.m@linux.intel.com> | 2021-03-18 13:18:09 +0300 |
|---|---|---|
| committer | Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> | 2021-11-05 10:22:15 +0300 |
| commit | ce5e97f06c185fd6896fa9273c44fcfe6bf550b0 (patch) | |
| tree | 9d6dbfc97ac14d4dc6b68fd3ebe45c3a78409bf6 /include/uapi | |
| parent | 17857adb5c4644cb75e0c362745cd89ae9767774 (diff) | |
| download | linux-ce5e97f06c185fd6896fa9273c44fcfe6bf550b0.tar.xz | |
mailbox: ioctl to fetch mailbox size
The size of mailbox differ from AST2500, AST2600 A0 and A1. Add an ioctl
support to fetch the mailbox size.
Tested:
Verfied ioctl call returns mailbox size as expected.
Change-Id: I4e261aaf8aa3fb108d6ad152d30a17b114d70ccd
Signed-off-by: Arun P. Mohanan <arun.p.m@linux.intel.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/aspeed-lpc-mbox.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/uapi/linux/aspeed-lpc-mbox.h b/include/uapi/linux/aspeed-lpc-mbox.h new file mode 100644 index 000000000000..dbb8a7f24222 --- /dev/null +++ b/include/uapi/linux/aspeed-lpc-mbox.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later WITH Linux-syscall-note */ +/* Copyright (c) 2021 Intel Corporation */ + +struct aspeed_mbox_ioctl_data { + unsigned int data; +}; + +#define ASPEED_MBOX_IOCTL_BASE 0xA3 + +#define ASPEED_MBOX_SIZE \ + _IOR(ASPEED_MBOX_IOCTL_BASE, 0, struct aspeed_mbox_ioctl_data) |