openwrt/package/kernel/ath10k-ct/patches/130-ath10k-activate-user-space-firmware-loading-again.patch
Hauke Mehrtens efbd4e721d ath10k-ct: activate user space firmware loading again
This backports a patch from kernel 4.14 to the ath10k-ct version based
on kernel 4.13.
Some devices are using a user space script to load the calibration data
from the flash and this was not trigged any more.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-10-12 23:40:27 +02:00

37 lines
1.5 KiB
Diff

From c0cc00f250e19c717fc9cdbdb7f55aaa569c7498 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Thu, 24 Aug 2017 23:06:41 +0200
Subject: [PATCH] ath10k: activate user space firmware loading again
In commit 9f5bcfe93315 ("ath10k: silence firmware file probing
warnings") the firmware loading was changed from request_firmware() to
request_firmware_direct() to silence some warnings in case it fails.
request_firmware_direct() directly searches in the file system only and
does not send a hotplug event to user space in case it could not find
the firmware directly.
In LEDE we use a user space script to extract the calibration data from
the flash memory which gets triggered by the hotplug event. This way the
firmware gets extracted from some vendor specific partition when the
driver requests this firmware. This mechanism does not work any more
after this change.
Fixes: 9f5bcfe93315 ("ath10k: silence firmware file probing warnings")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
ath10k-4.13/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/ath10k-4.13/core.c
+++ b/ath10k-4.13/core.c
@@ -556,7 +556,7 @@ static const struct firmware *ath10k_fet
dir = ".";
snprintf(filename, sizeof(filename), "%s/%s", dir, file);
- ret = request_firmware_direct(&fw, filename, ar->dev);
+ ret = request_firmware(&fw, filename, ar->dev);
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot fw request '%s': %d\n",
filename, ret);