Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-24 21:21:41 +00:00
Code Issues Packages Projects Releases Wiki Activity

power: sequencing: request the WLAN enable GPIO as-is

Browse Source 
If the WCN module is powered up before linux boots and the ath11k driver
probes at the same time as the power sequencing driver, we may end up
driving the wlan-enable GPIO low in the latter, breaking the start-up of
the WLAN module. Request the wlan-enable GPIO as-is so that if the WLAN
module is already starting/started, we leave it alone.

Fixes: 2f1630f437 ("power: pwrseq: add a driver for the PMU module on the QCom WCN chipsets")
Reported-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Link: https://lore.kernel.org/r/20240813190751.155035-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2024-08-13 21:07:50 +02:00
parent 8400291e28
commit a9aaf1ff88
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/power/sequencing/pwrseq-qcom-wcn.c
View File

@ -283,7 +283,7 @@ static int pwrseq_qcom_wcn_probe(struct platform_device *pdev)
"Failed to get the Bluetooth enable GPIO\n");
ctx->wlan_gpio = devm_gpiod_get_optional(dev, "wlan-enable",
GPIOD_OUT_LOW);
GPIOD_ASIS);
if (IS_ERR(ctx->wlan_gpio))
return dev_err_probe(dev, PTR_ERR(ctx->wlan_gpio),
"Failed to get the WLAN enable GPIO\n");