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power sequencing fixes for v6.11-rc6

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- set the direction of the wlan-enable GPIO to output after requesting
   it as-is
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Merge tag 'pwrseq-fixes-for-v6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull power sequencing fix from Bartosz Golaszewski:
 "A follow-up fix for the power sequencing subsystem. It turned out the
  previous fix for this driver was incomplete and broke the WLAN support
  on some platforms. This addresses the issue.

   - set the direction of the wlan-enable GPIO to output after
     requesting it as-is"

* tag 'pwrseq-fixes-for-v6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  power: sequencing: qcom-wcn: set the wlan-enable GPIO to output
This commit is contained in:
Linus Torvalds 2024-09-01 09:07:44 +12:00
commit 8463be8448
1 changed files with 7 additions and 0 deletions
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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),
"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);
if (IS_ERR(ctx->clk))
return dev_err_probe(dev, PTR_ERR(ctx->clk),