diff options
| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-27 18:54:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-27 18:54:13 +0100 |
| commit | 8f677bc819e7a74cf10e30daf06e8b151d1e6a94 (patch) | |
| tree | 379e4e32a06dfb6d2ca3519ca4ef6b7507fad197 /drivers/input/misc/soc_button_array.c | |
| parent | docs: driver-model: Add documentation for sync_state (diff) | |
| parent | Linux 5.4-rc5 (diff) | |
Merge 5.4-rc5 into driver-core-next
We want the sysfs fix in here as well to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/input/misc/soc_button_array.c')
| -rw-r--r-- | drivers/input/misc/soc_button_array.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/input/misc/soc_button_array.c b/drivers/input/misc/soc_button_array.c index 97e3639e99d0..08520b3a18b8 100644 --- a/drivers/input/misc/soc_button_array.c +++ b/drivers/input/misc/soc_button_array.c @@ -92,11 +92,18 @@ soc_button_device_create(struct platform_device *pdev, continue; gpio = soc_button_lookup_gpio(&pdev->dev, info->acpi_index); - if (gpio < 0 && gpio != -ENOENT) { - error = gpio; - goto err_free_mem; - } else if (!gpio_is_valid(gpio)) { - /* Skip GPIO if not present */ + if (!gpio_is_valid(gpio)) { + /* + * Skip GPIO if not present. Note we deliberately + * ignore -EPROBE_DEFER errors here. On some devices + * Intel is using so called virtual GPIOs which are not + * GPIOs at all but some way for AML code to check some + * random status bits without need a custom opregion. + * In some cases the resources table we parse points to + * such a virtual GPIO, since these are not real GPIOs + * we do not have a driver for these so they will never + * show up, therefore we ignore -EPROBE_DEFER. + */ continue; } |