diff options
| author |   Luis R. Rodriguez <mcgrof@kernel.org> | 2018-03-21 15:34:29 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-22 18:33:26 +0100 |
| commit | 5d42c96e1cf98bdfea18e7d32e5f6cf75aac93b9 (patch) | |
| tree | 2fc500c8568cb975a02ff63271590b472109b773 /include/linux/firmware.h | |
| parent | firmware: fix typo on pr_info_once() when ignore_sysfs_fallback is used (diff) | |
| download | linux-dev-5d42c96e1cf98bdfea18e7d32e5f6cf75aac93b9.tar.xz linux-dev-5d42c96e1cf98bdfea18e7d32e5f6cf75aac93b9.zip | |
firmware: add firmware_request_cache() to help with cache on reboot
Some devices have an optimization in place to enable the firmware to
be retaineed during a system reboot, so after reboot the device can skip
requesting and loading the firmware. This can save up to 1s in load
time. The mt7601u 802.11 device happens to be such a device.
When these devices retain the firmware on a reboot and then suspend
they can miss looking for the firmware on resume. To help with this we
need a way to cache the firmware when such an optimization has taken
place.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/firmware.h')
| -rw-r--r-- | include/linux/firmware.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/firmware.h b/include/linux/firmware.h index d4508080348d..41050417cafb 100644 --- a/include/linux/firmware.h +++ b/include/linux/firmware.h @@ -85,4 +85,7 @@ static inline int request_firmware_into_buf(const struct firmware **firmware_p, } #endif + +int firmware_request_cache(struct device *device, const char *name); + #endif |