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| author | Elia Devito <eliadevito@gmail.com> | 2020-12-04 17:02:35 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2020-12-07 17:40:40 +0100 |
| commit | ac32bae0008340d87328a74d7598333bf48348c7 (patch) | |
| tree | 980aa64bea7ebedabce8e743a2a8f37f946b3f17 /drivers/platform | |
| parent | 537b0dd4729e7f5c5b3e8321954d3b8a2d0dd7a8 (diff) | |
| download | linux-ac32bae0008340d87328a74d7598333bf48348c7.tar.bz2 | |
platform/x86: intel-hid: Add alternative method to enable switches
Some convertible have unreliable VGBS return, in these cases we enable
support when receiving the first event.
Signed-off-by: Elia Devito <eliadevito@gmail.com>
Link: https://lore.kernel.org/r/20201204160234.36832-1-elia@xvalue.it
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/intel-hid.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c index c69c2cc1e079..66ccdc17a64d 100644 --- a/drivers/platform/x86/intel-hid.c +++ b/drivers/platform/x86/intel-hid.c @@ -435,6 +435,19 @@ static void notify_handler(acpi_handle handle, u32 event, void *context) struct platform_device *device = context; struct intel_hid_priv *priv = dev_get_drvdata(&device->dev); unsigned long long ev_index; + int err; + + /* + * Some convertible have unreliable VGBS return which could cause incorrect + * SW_TABLET_MODE report, in these cases we enable support when receiving + * the first event instead of during driver setup. + */ + if (!priv->switches && (event == 0xcc || event == 0xcd)) { + dev_info(&device->dev, "switch event received, enable switches supports\n"); + err = intel_hid_switches_setup(device); + if (err) + pr_err("Failed to setup Intel HID switches\n"); + } if (priv->wakeup_mode) { /* |