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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-01 09:07:44 +1200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-01 09:07:44 +1200 |
| commit | 8463be84486c19221198a76436d9177f395bb2eb (patch) | |
| tree | 54bfc51352c9b4027ca8ff5c48496b21f9213d3d /drivers/power | |
| parent | e8784b0aef62cd6117e1c93c64d060e4c7314a1f (diff) | |
| parent | d8b762070c3fde224f8b9ea3cf59bc41a5a3eb57 (diff) | |
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
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/sequencing/pwrseq-qcom-wcn.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/power/sequencing/pwrseq-qcom-wcn.c b/drivers/power/sequencing/pwrseq-qcom-wcn.c index d786cbf1b2cd..700879474abf 100644 --- a/drivers/power/sequencing/pwrseq-qcom-wcn.c +++ b/drivers/power/sequencing/pwrseq-qcom-wcn.c @@ -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), |