From: Elia Devito <eliadevito@xxxxxxxxx>
Some convertible have unreliable VGBS return, in these cases we enable
support when receiving the first event.
Signed-off-by: Elia Devito <eliadevito@xxxxxxxxx>
---
drivers/platform/x86/intel-hid.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
index d2f892665ec6..054bc37da2cf 100644
--- a/drivers/platform/x86/intel-hid.c
+++ b/drivers/platform/x86/intel-hid.c
@@ -423,6 +423,19 @@ 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) {
/*
--
2.28.0
