korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-14 15:54:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

power: sequencing: qcom-wcn: set the wlan-enable GPIO to output

Browse Source 
Commit a9aaf1ff88 ("power: sequencing: request the WLAN enable GPIO
as-is") broke WLAN on boards on which the wlan-enable GPIO enabling the
wifi module isn't in output mode by default. We need to set direction to
output while retaining the value that was already set to keep the ath
module on if it's already started.

Fixes: a9aaf1ff88 ("power: sequencing: request the WLAN enable GPIO as-is")
Link: https://lore.kernel.org/r/20240823115500.37280-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2024-08-23 13:55:00 +02:00
parent 5be63fc19f
commit d8b762070c
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/power/sequencing/pwrseq-qcom-wcn.c
View File

@ -288,6 +288,13 @@ static int pwrseq_qcom_wcn_probe(struct platform_device *pdev)
return dev_err_probe(dev, PTR_ERR(ctx->wlan_gpio), return dev_err_probe(dev, PTR_ERR(ctx->wlan_gpio),
"Failed to get the WLAN enable GPIO\n"); "Failed to get the WLAN enable GPIO\n");
/*
* Set direction to output but keep the current value in order to not
* disable the WLAN module accidentally if it's already powered on.
*/
gpiod_direction_output(ctx->wlan_gpio,
gpiod_get_value_cansleep(ctx->wlan_gpio));
ctx->clk = devm_clk_get_optional(dev, NULL); ctx->clk = devm_clk_get_optional(dev, NULL);
if (IS_ERR(ctx->clk)) if (IS_ERR(ctx->clk))
return dev_err_probe(dev, PTR_ERR(ctx->clk), return dev_err_probe(dev, PTR_ERR(ctx->clk),