Commit a9aaf1ff authored by Bartosz Golaszewski's avatar Bartosz Golaszewski
Browse files

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



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: 2f1630f4 ("power: pwrseq: add a driver for the PMU module on the QCom WCN chipsets")
Reported-by: default avatarStephan Gerhold <stephan.gerhold@linaro.org>
Link: https://lore.kernel.org/r/20240813190751.155035-1-brgl@bgdev.pl


Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent 8400291e

drivers/power/sequencing/pwrseq-qcom-wcn.c

+1 −1
Original line number Diff line number Diff line
@@ -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");