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authorDaniel Vetter <daniel.vetter@ffwll.ch>2019-10-23 12:02:47 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2019-10-23 12:10:05 +0200
commit2e79e22e092acd55da0b2db066e4826d7d152c41 (patch)
treee7ec9782c0b7831c511af711424126a2b9a4eb07 /drivers/input/misc/soc_button_array.c
parentf1b4a9217efd61d0b84c6dc404596c8519ff6f59 (diff)
parent7d194c2100ad2a6dded545887d02754948ca5241 (diff)
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Merge v5.4-rc4 into drm-next
Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol value") to be able to merge his dp_link patch series. Some adjacent changes conflicts, plus some clashes in i915 due to cherry-picking and git trying to be helpful and leaving both versions in. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/input/misc/soc_button_array.c')
-rw-r--r--drivers/input/misc/soc_button_array.c17
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;
}